'.concat(s,'
').concat(o,"\n 
\n
')};var d=0,h=[];function f(e){if(e&&e._pendingCharts&&e._pendingCharts.length){var t=_toConsumableArray(e._pendingCharts);e._pendingCharts=[],requestAnimationFrame(function(){var e,n=_createForOfIteratorHelper(t);try{for(n.s();!(e=n.n()).done;){var i=e.value;m(i.chartId,i.config)}}catch(e){n.e(e)}finally{n.f()}})}}function m(e,t){var n=document.getElementById(e);if(!n)return!1;if("undefined"==typeof Chart)return console.warn('Chart.js is not loaded. To render interactive charts, include the Chart.js library on the page (e.g., ).');\n return false;\n }\n\n // When the canvas is inside a hidden container (e.g., a widget panel with\n // display:none), it has zero dimensions and Chart.js cannot render correctly.\n // Keep the config in __chartConfigs so renderPendingCharts() can retry later\n // once the container becomes visible.\n if (canvas.offsetParent === null) {\n window.__chartConfigs[chartId] = config;\n return false;\n }\n\n try {\n if (canvas._chartInstance) {\n canvas._chartInstance.destroy();\n }\n\n const cfg = typeof config === 'string' ? JSON.parse(config) : config;\n cfg.options ??= {};\n cfg.options.responsive = true;\n cfg.options.maintainAspectRatio = true;\n cfg.options.aspectRatio ??= 4 / 3;\n\n canvas._chartInstance = new Chart(canvas, cfg);\n delete window.__chartConfigs[chartId];\n return true;\n } catch (e) {\n console.error('Error creating chart:', e);\n return false;\n }\n }\n\n // Global function: renders any chart canvases whose configs are in the\n // global __chartConfigs map. Called by pages (e.g., Chat Interactions)\n // that share the marked instance but have their own rendering pipeline.\n window.renderPendingCharts = function () {\n if (typeof Chart === 'undefined') {\n return;\n }\n\n const configs = window.__chartConfigs;\n if (!configs) {\n return;\n }\n\n requestAnimationFrame(() => {\n for (const chartId of Object.keys(configs)) {\n renderChartOnCanvas(chartId, configs[chartId]);\n }\n });\n };\n\n // Parse markdown content via marked (which natively handles [chart:...] markers\n // through the registered extension) and collect pending chart configs for later\n // Chart.js rendering.\n function parseMarkdownContent(content, message) {\n _pendingCharts = [];\n const html = marked.parse(content, { renderer });\n message._pendingCharts = _pendingCharts.length > 0 ? [..._pendingCharts] : [];\n return DOMPurify.sanitize(html, { ADD_TAGS: ['canvas'], ADD_ATTR: ['target'] });\n }\n\n const initialize = (instanceConfig) => {\n\n const config = Object.assign({}, defaultConfig, instanceConfig);\n config.widget = Object.assign({}, defaultConfig.widget || {}, instanceConfig && instanceConfig.widget ? instanceConfig.widget : {});\n const hasWidgetConfig = !!(instanceConfig && instanceConfig.widget && instanceConfig.widget.chatWidgetContainer && instanceConfig.widget.chatWidgetStateName);\n const widgetBehavior = window.openAIChatWidgetBehavior || null;\n // Keep defaultConfig in sync so renderers use overridden values\n defaultConfig = config;\n\n if (!config.signalRHubUrl) {\n console.error('The signalRHubUrl is required.');\n return;\n }\n\n if (!config.appElementSelector) {\n console.error('The appElementSelector is required.');\n return;\n }\n\n if (!config.chatContainerElementSelector) {\n console.error('The chatContainerElementSelector is required.');\n return;\n }\n\n if (!config.inputElementSelector) {\n console.error('The inputElementSelector is required.');\n return;\n }\n\n if (!config.sendButtonElementSelector) {\n console.error('The sendButtonElementSelector is required.');\n return;\n }\n\n const appDefinition = {\n data() {\n return {\n inputElement: null,\n buttonElement: null,\n chatContainer: null,\n placeholder: null,\n isSessionStarted: false,\n isPlaceholderVisible: true,\n isStreaming: false,\n isNavigatingAway: false,\n autoScroll: true,\n stream: null,\n messages: [],\n notifications: [],\n prompt: '',\n documents: config.existingDocuments || [],\n isUploading: false,\n isDocumentOperationPending: false,\n documentOperationQueue: null,\n uploadErrors: [],\n isDragOver: false,\n documentBar: null,\n metricsEnabled: !!config.metricsEnabled,\n userLabel: config.userLabel,\n assistantLabel: config.assistantLabel,\n thumbsUpTitle: config.thumbsUpTitle,\n thumbsDownTitle: config.thumbsDownTitle,\n copyTitle: config.copyTitle,\n isRecording: false,\n mediaRecorder: null,\n preRecordingPrompt: '',\n micButton: null,\n speechToTextEnabled: config.chatMode === 'AudioInput' || config.chatMode === 'Conversation',\n textToSpeechEnabled: config.chatMode === 'Conversation' || !!config.textToSpeechEnabled,\n ttsVoiceName: config.ttsVoiceName || null,\n audioChunks: [],\n audioPlayQueue: [],\n isPlayingAudio: false,\n currentAudioElement: null,\n currentAudioUrl: null,\n ttsButton: null,\n ttsPlayingMessageIndex: -1,\n ttsAudioCache: {},\n ttsInstanceId: 'ai-chat-' + Math.random().toString(36).slice(2),\n singleResponseMode: !!config.singleResponseMode,\n conversationModeEnabled: config.chatMode === 'Conversation',\n conversationButton: null,\n isConversationMode: false,\n notificationDismissTimers: {},\n pendingSessionPromise: null,\n pendingSessionResolver: null,\n pendingSessionRejector: null,\n pendingSessionTimeoutId: null,\n };\n },\n computed: {\n lastAssistantIndex() {\n for (var i = this.messages.length - 1; i >= 0; i--) {\n if (this.messages[i].role === 'assistant') {\n return i;\n }\n }\n return -1;\n }\n },\n methods: {\n handleBeforeUnload() {\n this.isNavigatingAway = true;\n },\n handleDragOver(e) {\n if (!config.sessionDocumentsEnabled) return;\n e.preventDefault();\n e.stopPropagation();\n this.isDragOver = true;\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) inputArea.classList.add('ai-chat-drag-over');\n },\n handleDragLeave(e) {\n if (!config.sessionDocumentsEnabled) return;\n e.preventDefault();\n e.stopPropagation();\n this.isDragOver = false;\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) inputArea.classList.remove('ai-chat-drag-over');\n },\n handleDrop(e) {\n if (!config.sessionDocumentsEnabled) return;\n e.preventDefault();\n e.stopPropagation();\n this.isDragOver = false;\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) inputArea.classList.remove('ai-chat-drag-over');\n if (e.dataTransfer && e.dataTransfer.files && e.dataTransfer.files.length > 0) {\n this.uploadFiles(Array.from(e.dataTransfer.files));\n }\n },\n triggerFileInput() {\n if (!config.sessionDocumentsEnabled || this.isDocumentOperationPending) return;\n var fileInput = document.getElementById('ai-chat-doc-input');\n if (fileInput) fileInput.click();\n },\n handleFileInputChange(e) {\n var files = e.target.files ? Array.from(e.target.files) : [];\n if (files && files.length > 0) {\n this.uploadFiles(files);\n }\n e.target.value = '';\n },\n queueDocumentOperation(operation) {\n var self = this;\n var previousOperation = this.documentOperationQueue || Promise.resolve();\n var nextOperation = previousOperation\n .catch(function () { })\n .then(async function () {\n self.isDocumentOperationPending = true;\n try {\n return await operation();\n } finally {\n self.isDocumentOperationPending = false;\n }\n });\n\n this.documentOperationQueue = nextOperation.finally(function () {\n if (self.documentOperationQueue === nextOperation) {\n self.documentOperationQueue = null;\n }\n });\n\n return this.documentOperationQueue;\n },\n async uploadFiles(files) {\n if (!config.uploadDocumentUrl) return;\n\n var filesToUpload = Array.isArray(files) ? files.slice() : Array.from(files || []);\n if (filesToUpload.length === 0) return;\n\n return this.queueDocumentOperation(async () => {\n var sessionId = this.getSessionId();\n var profileId = this.getProfileId();\n\n if (!sessionId) {\n try {\n sessionId = await this.ensureSessionForDocuments(profileId);\n } catch (err) {\n console.error('Failed to create a chat session for document upload:', err);\n this.uploadErrors = [{ fileName: '', error: 'Could not create a chat session for the upload.' }];\n this.renderDocumentBar();\n return;\n }\n }\n\n if (!sessionId) {\n console.warn('Cannot upload documents without a session or profile.');\n this.uploadErrors = [{ fileName: '', error: 'Could not create a chat session for the upload.' }];\n this.renderDocumentBar();\n return;\n }\n\n this.isUploading = true;\n this.uploadErrors = [];\n this.renderDocumentBar();\n try {\n var formData = new FormData();\n formData.append('sessionId', sessionId);\n for (var i = 0; i < filesToUpload.length; i++) {\n formData.append('files', filesToUpload[i]);\n }\n\n var response = await fetch(config.uploadDocumentUrl, {\n method: 'POST',\n body: formData\n });\n\n if (!response.ok) {\n var errorText = await response.text();\n var uploadError = this.extractReadableErrorMessage(errorText, 'Upload failed. Please try again.');\n console.error('Upload failed:', errorText);\n this.uploadErrors = [{ fileName: '', error: uploadError }];\n return;\n }\n\n var result = await response.json();\n\n if (result.sessionId && result.sessionId !== this.getSessionId()) {\n this.initializeSession(result.sessionId);\n }\n\n if (Array.isArray(result.documents)) {\n this.documents = result.documents;\n } else if (result.uploaded && result.uploaded.length > 0) {\n this.documents = this.documents.concat(result.uploaded);\n }\n\n if (result.failed && result.failed.length > 0) {\n this.uploadErrors = result.failed;\n }\n } catch (err) {\n console.error('Upload error:', err);\n this.uploadErrors = [{ fileName: '', error: 'Upload failed. Please try again.' }];\n\n if (this.getSessionId()) {\n this.reloadCurrentSession();\n }\n } finally {\n this.isUploading = false;\n this.renderDocumentBar();\n }\n });\n },\n async removeDocument(doc) {\n if (!config.removeDocumentUrl) return;\n\n return this.queueDocumentOperation(async () => {\n try {\n var sessionId = this.getSessionId();\n var response = await fetch(config.removeDocumentUrl, {\n method: 'POST',\n headers: { 'Content-Type': 'application/json' },\n body: JSON.stringify({ itemId: sessionId, documentId: doc.documentId })\n });\n\n if (response.ok) {\n var result = await response.json();\n\n if (Array.isArray(result.documents)) {\n this.documents = result.documents;\n } else {\n var idx = this.documents.indexOf(doc);\n if (idx > -1) {\n this.documents.splice(idx, 1);\n }\n }\n } else {\n var errorText = await response.text();\n var removeError = this.extractReadableErrorMessage(errorText, 'Failed to remove document. Please try again.');\n console.error('Failed to remove document:', response.status, errorText);\n this.uploadErrors = [{ fileName: doc.fileName || '', error: removeError }];\n if (sessionId) {\n this.reloadCurrentSession();\n }\n this.renderDocumentBar();\n }\n } catch (err) {\n console.error('Remove document error:', err);\n this.uploadErrors = [{ fileName: doc.fileName || '', error: 'Failed to remove document. Please try again.' }];\n if (this.getSessionId()) {\n this.reloadCurrentSession();\n }\n this.renderDocumentBar();\n }\n });\n },\n formatFileSize(bytes) {\n if (bytes < 1024) return bytes + ' B';\n if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';\n return (bytes / (1024 * 1024)).toFixed(1) + ' MB';\n },\n renderDocumentBar() {\n if (!this.documentBar) return;\n\n if (!config.sessionDocumentsEnabled) {\n this.documentBar.classList.add('d-none');\n return;\n }\n\n this.documentBar.classList.remove('d-none');\n\n var html = '';\n\n this.documentBar.replaceChildren(DOMPurify.sanitize(html, { RETURN_DOM_FRAGMENT: true }));\n\n // Bind remove handlers\n var self = this;\n var closeButtons = this.documentBar.querySelectorAll('[data-doc-index]');\n for (var j = 0; j < closeButtons.length; j++) {\n closeButtons[j].addEventListener('click', (function (idx) {\n return function (e) {\n e.preventDefault();\n e.stopPropagation();\n if (self.isDocumentOperationPending) {\n return;\n }\n\n var docToRemove = self.documents[idx];\n if (docToRemove) self.removeDocument(docToRemove);\n };\n })(parseInt(closeButtons[j].getAttribute('data-doc-index'))));\n }\n\n // Bind error dismiss handlers\n var errorCloseButtons = this.documentBar.querySelectorAll('[data-error-index]');\n for (var n = 0; n < errorCloseButtons.length; n++) {\n errorCloseButtons[n].addEventListener('click', (function (idx) {\n return function (e) {\n e.preventDefault();\n e.stopPropagation();\n self.uploadErrors.splice(idx, 1);\n self.renderDocumentBar();\n };\n })(parseInt(errorCloseButtons[n].getAttribute('data-error-index'))));\n }\n\n // Bind add button\n var addBtn = this.documentBar.querySelector('.ai-chat-doc-add-btn');\n if (addBtn) {\n addBtn.addEventListener('click', function (e) {\n e.preventDefault();\n if (self.isDocumentOperationPending) {\n return;\n }\n self.triggerFileInput();\n });\n }\n },\n escapeHtml(text) {\n var div = document.createElement('div');\n div.textContent = text;\n return div.innerHTML;\n },\n extractReadableErrorMessage(errorText, fallbackMessage) {\n if (!errorText || typeof errorText !== 'string') {\n return fallbackMessage;\n }\n\n var trimmed = errorText.trim();\n if (!trimmed) {\n return fallbackMessage;\n }\n\n if (trimmed.startsWith('{') || trimmed.startsWith('[')) {\n try {\n var parsed = JSON.parse(trimmed);\n var message = parsed?.error || parsed?.message || parsed?.title || parsed?.detail;\n return typeof message === 'string' && message.trim()\n ? message.trim()\n : fallbackMessage;\n } catch (err) {\n return fallbackMessage;\n }\n }\n\n if (/<[^>]+>/.test(trimmed)) {\n return fallbackMessage;\n }\n\n return trimmed;\n },\n normalizeAssistantAppearance(appearance) {\n if (!appearance) {\n return null;\n }\n\n var label = typeof appearance.label === 'string' ? appearance.label.trim() : '';\n var icon = typeof appearance.icon === 'string' ? appearance.icon.trim() : '';\n var cssClass = typeof appearance.cssClass === 'string' ? appearance.cssClass.trim() : '';\n var disableStreamingAnimation = !!appearance.disableStreamingAnimation;\n\n if (!label && !icon && !cssClass && !disableStreamingAnimation) {\n return null;\n }\n\n return {\n label: label,\n icon: icon,\n cssClass: cssClass,\n disableStreamingAnimation: disableStreamingAnimation,\n };\n },\n getAssistantLabel(message) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return appearance && appearance.label ? appearance.label : this.assistantLabel;\n },\n getAssistantRoleClasses(message) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n var classes = ['ai-chat-msg-role'];\n\n if (appearance && appearance.cssClass) {\n classes.push(appearance.cssClass);\n } else {\n classes.push('ai-chat-msg-role-assistant');\n }\n\n return classes;\n },\n getAssistantIconClasses(message, index) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return [this.shouldAnimateAssistantIcon(message, index) ? 'ai-streaming-icon' : 'ai-bot-icon', appearance && appearance.cssClass ? appearance.cssClass : ''];\n },\n getAssistantIcon(message) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return appearance && appearance.icon ? appearance.icon : 'fa fa-robot';\n },\n shouldAnimateAssistantIcon(message, index) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return !!message &&\n message.isStreaming &&\n index === this.lastAssistantIndex &&\n !(appearance && appearance.disableStreamingAnimation);\n },\n async startConnection() {\n this.connection = new signalR.HubConnectionBuilder()\n .withUrl(config.signalRHubUrl)\n .withAutomaticReconnect()\n .build();\n\n // Allow long-running operations (e.g., multi-step MCP tool calls)\n // without the client disconnecting prematurely.\n this.connection.serverTimeoutInMilliseconds = 600000;\n this.connection.keepAliveIntervalInMilliseconds = 15000;\n\n this.connection.on(\"LoadSession\", (data) => {\n this.initializeSession(data.sessionId, true);\n this.messages = [];\n this.documents = data.documents || [];\n this.uploadErrors = [];\n\n (data.messages ?? []).forEach(msg => {\n this.addMessage(msg);\n\n this.$nextTick(() => {\n renderChartsInMessage(msg);\n });\n });\n\n // Update feedback icons in the DOM after all messages have rendered.\n this.$nextTick(() => {\n this.refreshAllFeedbackIcons();\n });\n\n // When the session is new (no messages) and an initial prompt is configured,\n // automatically send it as the first user message to trigger an AI response.\n if (this.messages.length === 0 && config.initialPrompt) {\n this.prompt = config.initialPrompt;\n this.sendMessage();\n }\n });\n\n this.connection.on(\"ReceiveError\", (error) => {\n console.error(\"SignalR Error: \", error);\n\n if (this.isRecording) {\n this.stopRecording();\n }\n\n if (widgetBehavior && typeof widgetBehavior.handleReceiveError === 'function') {\n widgetBehavior.handleReceiveError(this, error, config);\n }\n });\n\n this.connection.on(\"MessageRated\", (messageId, userRating) => {\n var msg = this.messages.find(m => m.id === messageId);\n if (msg) {\n msg.userRating = userRating;\n }\n });\n\n this.connection.on(\"ReceiveTranscript\", (sessionId, text, isFinal) => {\n if (this.isConversationMode) {\n if (!isFinal && text) {\n this._conversationPartialTranscript = text;\n var escaped = text.replace(/&/g, '&').replace(//g, '>');\n var html = '\n \n \n \n
\n ' + escaped + '
';\n\n // Show partial transcript as a live user message.\n if (!this._conversationPartialMessage) {\n this.hidePlaceholder();\n this._conversationPartialMessage = {\n role: 'user',\n content: text,\n htmlContent: html,\n isPartial: true\n };\n this.messages.push(this._conversationPartialMessage);\n } else {\n this._conversationPartialMessage.content = text;\n this._conversationPartialMessage.htmlContent = html;\n }\n this.scrollToBottom();\n }\n return;\n }\n\n if (text && !this._audioInputSent) {\n this.prompt = this.preRecordingPrompt + text;\n if (this.inputElement) {\n this.inputElement.value = this.prompt;\n this.inputElement.dispatchEvent(new Event('input'));\n }\n }\n });\n\n this.connection.on(\"ReceiveConversationUserMessage\", (sessionId, text) => {\n if (text) {\n this.stopAudio();\n\n // If there's an interrupted assistant message still streaming,\n // mark it as done to stop the spinner animation.\n if (this._conversationAssistantMessage) {\n var oldMsg = this.messages[this._conversationAssistantMessage.index];\n if (oldMsg) {\n oldMsg.isStreaming = false;\n }\n this._conversationAssistantMessage = null;\n }\n\n // Replace the partial transcript message with the final one.\n if (this._conversationPartialMessage) {\n var escaped = text.replace(/&/g, '&').replace(//g, '>');\n this._conversationPartialMessage.content = text;\n this._conversationPartialMessage.htmlContent = '' + escaped + '
';\n this._conversationPartialMessage.isPartial = false;\n this._conversationPartialMessage = null;\n } else {\n this.addMessage({\n role: 'user',\n content: text\n });\n }\n this.scrollToBottom();\n }\n });\n\n this.connection.on(\"ReceiveConversationAssistantToken\", (sessionId, messageId, token, responseId, references, appearance) => {\n if (!this._conversationAssistantMessage) {\n this.stopAudio();\n this.hideTypingIndicator();\n\n // Ensure no stale streaming indicators remain from prior messages.\n for (var j = 0; j < this.messages.length; j++) {\n if (this.messages[j].isStreaming) {\n this.messages[j].isStreaming = false;\n }\n }\n\n var msgIndex = this.messages.length;\n var newMessage = {\n id: messageId,\n role: \"assistant\",\n content: \"\",\n htmlContent: \"\",\n isStreaming: true,\n userRating: null,\n appearance: this.normalizeAssistantAppearance(appearance),\n references: {},\n };\n this.messages.push(newMessage);\n this._conversationAssistantMessage = { index: msgIndex, content: '' };\n }\n\n this._conversationAssistantMessage.content += token;\n var msg = this.messages[this._conversationAssistantMessage.index];\n if (msg) {\n if (!msg.appearance) {\n msg.appearance = this.normalizeAssistantAppearance(appearance);\n }\n msg.rawContent = this._conversationAssistantMessage.content;\n msg.references = normalizeReferences(Object.assign({}, msg.references || {}, references || {}));\n updateMessagePresentation(msg, msg.references);\n this.$nextTick(() => {\n renderChartsInMessage(msg);\n this.scrollToBottom();\n });\n }\n });\n\n this.connection.on(\"ReceiveConversationAssistantComplete\", (sessionId, messageId, references) => {\n if (this._conversationAssistantMessage) {\n var msg = this.messages[this._conversationAssistantMessage.index];\n if (msg) {\n msg.isStreaming = false;\n msg.references = normalizeReferences(Object.assign({}, msg.references || {}, references || {}));\n updateMessagePresentation(msg, msg.references);\n }\n this._conversationAssistantMessage = null;\n }\n });\n\n this.connection.on(\"ReceiveAudioChunk\", (sessionId, base64Audio, contentType) => {\n if (base64Audio) {\n const binaryString = atob(base64Audio);\n const bytes = new Uint8Array(binaryString.length);\n for (let i = 0; i < binaryString.length; i++) {\n bytes[i] = binaryString.charCodeAt(i);\n }\n this.audioChunks.push(bytes);\n }\n });\n\n this.connection.on(\"ReceiveAudioComplete\", (sessionId) => {\n this.playCollectedAudio();\n });\n\n this.connection.on(\"ReceiveNotification\", (notification) => {\n this.receiveNotification(notification);\n });\n\n this.connection.on(\"UpdateNotification\", (notification) => {\n this.updateNotification(notification);\n });\n\n this.connection.on(\"RemoveNotification\", (notificationType) => {\n this.removeNotification(notificationType);\n });\n\n this.connection.onreconnecting(() => {\n console.warn(\"SignalR: reconnecting...\");\n });\n\n this.connection.onreconnected(() => {\n console.info(\"SignalR: reconnected.\");\n\n if (this.isSessionStarted) {\n this.reloadCurrentSession();\n } else if (config.autoCreateSession) {\n this.startNewSession();\n }\n });\n\n this.connection.onclose((error) => {\n if (this.isNavigatingAway) {\n return;\n }\n\n if (error) {\n console.warn(\"SignalR connection closed with error:\", error.message || error);\n }\n });\n\n try {\n await this.connection.start();\n } catch (err) {\n console.error(\"SignalR Connection Error: \", err);\n }\n },\n addMessageInternal(message) {\n if (message.role === 'assistant') {\n message.appearance = this.normalizeAssistantAppearance(message.appearance);\n }\n\n if (message.content && !message.htmlContent) {\n message.htmlContent = parseMarkdownContent(message.content, message);\n }\n this.fireEvent(new CustomEvent(\"addingOpenAIPromotMessage\", { detail: { message: message } }));\n this.messages.push(message);\n\n this.$nextTick(() => {\n this.fireEvent(new CustomEvent(\"addedOpenAIPromotMessage\", { detail: { message: message } }));\n });\n },\n addMessage(message) {\n\n // Ensure userRating is always defined for Vue reactivity.\n if (message.userRating === undefined) {\n message.userRating = null;\n }\n\n if (message.content) {\n message.rawContent = message.rawContent ?? message.content;\n updateMessagePresentation(message, message.references);\n }\n\n this.addMessageInternal(message);\n this.hidePlaceholder();\n\n this.$nextTick(() => {\n // Render any pending charts once the DOM is updated\n renderChartsInMessage(message);\n this.scrollToBottom();\n });\n },\n addMessages(messages) {\n\n for (let i = 0; i < messages.length; i++) {\n this.addMessageInternal(messages[i]);\n }\n\n this.hidePlaceholder();\n this.$nextTick(() => {\n this.scrollToBottom();\n });\n },\n hidePlaceholder() {\n if (this.placeholder) {\n this.placeholder.classList.add('d-none');\n }\n this.isPlaceholderVisible = false;\n },\n showPlaceholder() {\n if (this.placeholder) {\n this.placeholder.classList.remove('d-none');\n }\n this.isPlaceholderVisible = true;\n },\n isOrchestratorAvailable() {\n return config.isOrchestratorAvailable !== false;\n },\n applyOrchestratorAvailability() {\n if (this.isOrchestratorAvailable()) {\n return true;\n }\n\n const unavailableMessage = config.orchestratorUnavailableMessage || \"This orchestrator is not currently available.\";\n\n if (this.inputElement) {\n this.inputElement.disabled = true;\n this.inputElement.value = '';\n this.inputElement.placeholder = unavailableMessage;\n }\n\n if (this.buttonElement) {\n this.buttonElement.disabled = true;\n }\n\n if (this.micButtonElement) {\n this.micButtonElement.disabled = true;\n this.micButtonElement.style.display = 'none';\n }\n\n if (this.conversationButtonElement) {\n this.conversationButtonElement.disabled = true;\n this.conversationButtonElement.style.display = 'none';\n }\n\n return false;\n },\n fireEvent(event) {\n document.dispatchEvent(event);\n },\n isIndicator(message) {\n return message.role === 'indicator';\n },\n sendMessage() {\n if (!this.applyOrchestratorAvailability()) {\n return;\n }\n\n let trimmedPrompt = this.prompt.trim();\n\n if (!trimmedPrompt) {\n return;\n }\n\n // Stop any active recording before sending.\n if (this.isRecording) {\n this.stopRecording();\n }\n\n // Prevent stale ReceiveTranscript events from repopulating the prompt.\n this._audioInputSent = true;\n\n // In single-response mode, clear all previous messages.\n if (this.singleResponseMode) {\n this.messages.splice(0, this.messages.length);\n }\n\n this.addMessage({\n role: 'user',\n content: trimmedPrompt\n });\n\n this.streamMessage(this.getProfileId(), trimmedPrompt, null);\n this.inputElement.value = '';\n this.prompt = '';\n },\n startRecording() {\n if (this.isRecording || !this.connection) {\n return;\n }\n\n navigator.mediaDevices.getUserMedia({ audio: { echoCancellation: true, noiseSuppression: true, autoGainControl: true } })\n .then(stream => {\n var mimeType = MediaRecorder.isTypeSupported('audio/ogg;codecs=opus')\n ? 'audio/ogg;codecs=opus'\n : MediaRecorder.isTypeSupported('audio/webm;codecs=opus')\n ? 'audio/webm;codecs=opus'\n : 'audio/webm';\n\n this.mediaRecorder = new MediaRecorder(stream, {\n mimeType: mimeType,\n audioBitsPerSecond: 128000,\n });\n\n this.preRecordingPrompt = this.prompt;\n this._audioInputSent = false;\n\n var subject = new signalR.Subject();\n var profileId = this.getProfileId();\n var sessionId = this.getSessionId() || '';\n var pendingChunk = Promise.resolve();\n\n this.mediaRecorder.addEventListener('dataavailable', (e) => {\n if (e.data && e.data.size > 0) {\n pendingChunk = pendingChunk.then(async () => {\n var data = await e.data.arrayBuffer();\n var uint8Array = new Uint8Array(data);\n var binaryString = uint8Array.reduce(function (str, byte) { return str + String.fromCharCode(byte); }, '');\n var base64 = btoa(binaryString);\n subject.next(base64);\n });\n }\n });\n\n this.mediaRecorder.addEventListener('stop', () => {\n stream.getTracks().forEach(track => track.stop());\n pendingChunk.then(() => subject.complete());\n });\n\n var language = navigator.language || document.documentElement.lang || 'en-US';\n this.connection.send(\"SendAudioStream\", profileId, sessionId, subject, mimeType, language);\n this.mediaRecorder.start(250);\n this.isRecording = true;\n this.updateMicButton();\n })\n .catch(err => {\n console.error('Microphone access denied:', err);\n });\n },\n stopRecording() {\n if (!this.isRecording || !this.mediaRecorder) {\n return;\n }\n\n this.mediaRecorder.stop();\n this.isRecording = false;\n this.updateMicButton();\n },\n toggleRecording() {\n if (this.isRecording) {\n this.stopRecording();\n } else {\n this.startRecording();\n }\n },\n updateMicButton() {\n if (!this.micButton) {\n return;\n }\n\n if (this.isRecording) {\n this.micButton.classList.add('stt-recording');\n this.micButton.innerHTML = '';\n } else {\n this.micButton.classList.remove('stt-recording');\n this.micButton.innerHTML = '';\n }\n },\n streamMessage(profileId, trimmedPrompt, sessionProfileId) {\n\n if (this.stream) {\n this.stream.dispose();\n this.stream = null;\n }\n\n this.streamingStarted();\n this.showTypingIndicator();\n this.autoScroll = true;\n\n var content = '';\n var references = {};\n var lastResponseId = null;\n\n // Get the index after showing typing indicator.\n var messageIndex = this.messages.length;\n var currentSessionId = this.getSessionId();\n\n this.stream = this.connection.stream(\"SendMessage\", profileId, trimmedPrompt, currentSessionId, sessionProfileId)\n .subscribe({\n next: (chunk) => {\n let message = this.messages[messageIndex];\n\n if (!message) {\n\n if (chunk.sessionId && !currentSessionId) {\n this.initializeSession(chunk.sessionId);\n }\n\n this.hideTypingIndicator();\n // Re-assign the index after hiding the typing indicator.\n messageIndex = this.messages.length;\n let newMessage = {\n id: chunk.messageId,\n role: \"assistant\",\n title: chunk.title,\n content: \"\",\n htmlContent: \"\",\n isStreaming: true,\n userRating: null,\n };\n\n this.messages.push(newMessage);\n\n message = newMessage;\n }\n\n if (chunk.title && (!message.title || message.title !== chunk.title)) {\n message.title = chunk.title;\n }\n\n if (chunk.references && typeof chunk.references === \"object\" && Object.keys(chunk.references).length) {\n\n for (const [key, value] of Object.entries(chunk.references)) {\n references[key] = normalizeReference(value) ?? {};\n }\n }\n\n if (chunk.content) {\n\n // When the responseId changes (e.g., after an internal tool call),\n // insert a line break to visually separate response segments.\n if (chunk.responseId && lastResponseId && chunk.responseId !== lastResponseId) {\n content += '\\n\\n';\n }\n\n if (chunk.responseId) {\n lastResponseId = chunk.responseId;\n }\n\n content += chunk.content;\n }\n\n // Update the existing message\n message.rawContent = content;\n updateMessagePresentation(message, references);\n\n this.messages[messageIndex] = message;\n\n this.$nextTick(() => {\n renderChartsInMessage(message);\n this.scrollToBottom();\n });\n },\n complete: () => {\n this.processReferences(references, messageIndex);\n this.streamingFinished();\n\n let msg = this.messages[messageIndex];\n if (msg) {\n msg.isStreaming = false;\n }\n\n if (!msg || !msg.content) {\n // No content received at all.\n this.hideTypingIndicator();\n }\n\n // Trigger text-to-speech only in conversation mode.\n if (this.isConversationMode && this.textToSpeechEnabled && msg && msg.content) {\n this.synthesizeSpeech(msg.content);\n }\n\n this.stream?.dispose();\n this.stream = null;\n },\n error: (err) => {\n this.processReferences(references, messageIndex);\n this.streamingFinished();\n\n let msg = this.messages[messageIndex];\n if (msg) {\n msg.isStreaming = false;\n }\n\n this.hideTypingIndicator();\n\n if (!this.isNavigatingAway) {\n this.addMessage(this.getServiceDownMessage());\n }\n\n this.stream?.dispose();\n this.stream = null;\n\n console.error(\"Stream error:\", err);\n }\n });\n },\n getServiceDownMessage() {\n let newMessage = {\n role: \"assistant\",\n content: \"Our service is currently unavailable. Please try again later. We apologize for the inconvenience.\",\n htmlContent: \"\",\n };\n\n return newMessage;\n },\n processReferences(references, messageIndex) {\n references = normalizeReferences(references);\n\n if (Object.keys(references).length) {\n\n let message = this.messages[messageIndex];\n message.rawContent = message.rawContent ?? message.content ?? '';\n updateMessagePresentation(message, references);\n\n this.messages[messageIndex] = message;\n\n this.$nextTick(() => {\n renderChartsInMessage(message);\n this.scrollToBottom();\n });\n }\n },\n streamingStarted() {\n var stopIcon = this.buttonElement.getAttribute('data-stop-icon');\n\n if (stopIcon) {\n this.buttonElement.replaceChildren(DOMPurify.sanitize(stopIcon, { RETURN_DOM_FRAGMENT: true }));\n }\n\n if (this.inputElement) {\n this.inputElement.setAttribute('disabled', 'disabled');\n }\n },\n streamingFinished() {\n var startIcon = this.buttonElement.getAttribute('data-start-icon');\n\n if (startIcon) {\n this.buttonElement.replaceChildren(DOMPurify.sanitize(startIcon, { RETURN_DOM_FRAGMENT: true }));\n }\n\n if (this.inputElement) {\n this.inputElement.removeAttribute('disabled');\n this.inputElement.focus();\n }\n\n // Directly manipulate the DOM to stop all streaming animations.\n if (this.chatContainer) {\n var icons = this.chatContainer.querySelectorAll('.ai-streaming-icon');\n for (var i = 0; i < icons.length; i++) {\n icons[i].classList.remove('ai-streaming-icon');\n icons[i].classList.add('ai-bot-icon');\n }\n }\n\n // Also update Vue data for consistency.\n for (var i = 0; i < this.messages.length; i++) {\n if (this.messages[i].isStreaming) {\n this.messages[i].isStreaming = false;\n }\n }\n },\n handleExternalTtsStop(e) {\n if (e?.detail?.sourceId === this.ttsInstanceId) {\n return;\n }\n\n this.stopAudio(false);\n },\n updateTtsPlaybackButtons() {\n if (!this.chatContainer) {\n return;\n }\n\n var buttons = this.chatContainer.querySelectorAll('[data-tts-message-index]');\n\n buttons.forEach(button => {\n var buttonIndex = Number(button.getAttribute('data-tts-message-index'));\n var isPlaying = buttonIndex === this.ttsPlayingMessageIndex;\n var iconHtml = isPlaying\n ? ''\n : '';\n\n button.classList.toggle('tts-playing', isPlaying);\n button.setAttribute('title', isPlaying ? 'Pause audio' : 'Read aloud');\n button.replaceChildren(DOMPurify.sanitize(iconHtml, { RETURN_DOM_FRAGMENT: true }));\n });\n },\n synthesizeSpeech(text, cacheIndex) {\n if (!this.textToSpeechEnabled || !text || !this.connection) {\n return;\n }\n\n this.audioChunks = [];\n this.isPlayingAudio = true;\n this._ttsCacheIndex = cacheIndex !== undefined ? cacheIndex : -1;\n\n this.connection.invoke(\"SynthesizeSpeech\", this.getProfileId(), this.getSessionId(), text, this.ttsVoiceName)\n .catch(err => {\n console.error(\"TTS synthesis error:\", err);\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this._ttsCacheIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n });\n },\n toggleMessageTts(message, index) {\n if (this.ttsPlayingMessageIndex === index) {\n this.stopAudio();\n return;\n }\n\n this.stopAudio(false);\n window.dispatchEvent(new CustomEvent('crestapps-ai-chat-stop-tts', {\n detail: { sourceId: this.ttsInstanceId }\n }));\n this.ttsPlayingMessageIndex = index;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n\n if (this.ttsAudioCache[index]) {\n this.playAudioBlob(this.ttsAudioCache[index]);\n return;\n }\n\n this.synthesizeSpeech(message.content, index);\n },\n playCollectedAudio() {\n if (this.audioChunks.length === 0) {\n if (!this.currentAudioElement && this.audioPlayQueue.length === 0) {\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n }\n return;\n }\n\n const totalLength = this.audioChunks.reduce((sum, chunk) => sum + chunk.length, 0);\n const combined = new Uint8Array(totalLength);\n let offset = 0;\n for (const chunk of this.audioChunks) {\n combined.set(chunk, offset);\n offset += chunk.length;\n }\n this.audioChunks = [];\n\n const blob = new Blob([combined], { type: 'audio/mp3' });\n\n if (this._ttsCacheIndex >= 0) {\n this.ttsAudioCache[this._ttsCacheIndex] = blob;\n this._ttsCacheIndex = -1;\n }\n\n // If audio is already playing, queue this blob for sequential playback.\n if (this.currentAudioElement) {\n this.audioPlayQueue.push(blob);\n return;\n }\n\n this.playAudioBlob(blob);\n },\n playAudioBlob(blob) {\n const url = URL.createObjectURL(blob);\n const audio = new Audio(url);\n\n this.currentAudioUrl = url;\n this.currentAudioElement = audio;\n this.isPlayingAudio = true;\n\n audio.addEventListener('ended', () => {\n this.currentAudioElement = null;\n this.currentAudioUrl = null;\n URL.revokeObjectURL(url);\n this.playNextInQueue();\n });\n\n audio.addEventListener('error', () => {\n this.currentAudioElement = null;\n this.currentAudioUrl = null;\n URL.revokeObjectURL(url);\n this.playNextInQueue();\n });\n\n audio.play().catch(err => {\n console.error(\"Audio playback error:\", err);\n this.currentAudioElement = null;\n this.currentAudioUrl = null;\n URL.revokeObjectURL(url);\n this.audioPlayQueue = [];\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n });\n },\n playNextInQueue() {\n if (this.audioPlayQueue.length > 0) {\n var nextBlob = this.audioPlayQueue.shift();\n this.playAudioBlob(nextBlob);\n } else {\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n this.conversationModeOnAudioEnded();\n }\n },\n stopAudio() {\n if (this.currentAudioElement) {\n this.currentAudioElement.pause();\n this.currentAudioElement.currentTime = 0;\n this.currentAudioElement = null;\n }\n if (this.currentAudioUrl) {\n URL.revokeObjectURL(this.currentAudioUrl);\n this.currentAudioUrl = null;\n }\n this.audioChunks = [];\n this.audioPlayQueue = [];\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n },\n toggleConversationMode() {\n if (this.isConversationMode) {\n this.stopConversationMode();\n } else {\n this.startConversationMode();\n }\n },\n startConversationMode() {\n if (!this.conversationModeEnabled || this.isConversationMode || !this.connection) {\n return;\n }\n\n this.isConversationMode = true;\n this.updateConversationButton();\n this._conversationPartialTranscript = '';\n this._conversationAssistantMessage = null;\n this._conversationPartialMessage = null;\n\n // Remove any previous conversation ended notification.\n this.removeNotification('conversation-ended');\n navigator.mediaDevices.getUserMedia({ audio: { echoCancellation: true, noiseSuppression: true, autoGainControl: true } })\n .then(stream => {\n var mimeType = MediaRecorder.isTypeSupported('audio/ogg;codecs=opus')\n ? 'audio/ogg;codecs=opus'\n : MediaRecorder.isTypeSupported('audio/webm;codecs=opus')\n ? 'audio/webm;codecs=opus'\n : 'audio/webm';\n\n this.mediaRecorder = new MediaRecorder(stream, {\n mimeType: mimeType,\n audioBitsPerSecond: 128000,\n });\n\n this._conversationSubject = new signalR.Subject();\n this._conversationStream = stream;\n\n // Create an AnalyserNode for volume-based interrupt detection.\n // During TTS playback, detect when the user speaks above\n // the threshold to stop TTS (interrupt). Audio chunks are\n // always forwarded — browser echo cancellation handles\n // speaker echo so the STT stream has no gaps.\n var AudioCtx = window.AudioContext || window.webkitAudioContext;\n if (AudioCtx) {\n this._conversationAudioCtx = new AudioCtx();\n this._conversationAnalyser = this._conversationAudioCtx.createAnalyser();\n this._conversationAnalyser.fftSize = 256;\n var micSource = this._conversationAudioCtx.createMediaStreamSource(stream);\n micSource.connect(this._conversationAnalyser);\n }\n\n var pendingChunk = Promise.resolve();\n var analyser = this._conversationAnalyser;\n var interruptVolumeThreshold = 30;\n\n this.mediaRecorder.addEventListener('dataavailable', (e) => {\n if (e.data && e.data.size > 0) {\n // During TTS playback, check mic volume to detect\n // user interruption (speaking above threshold).\n if (this.isPlayingAudio && analyser) {\n var freqData = new Uint8Array(analyser.frequencyBinCount);\n analyser.getByteFrequencyData(freqData);\n var sum = 0;\n for (var k = 0; k < freqData.length; k++) { sum += freqData[k]; }\n var avg = sum / freqData.length;\n\n if (avg >= interruptVolumeThreshold) {\n // User is speaking — interrupt TTS playback.\n this.stopAudio();\n }\n }\n\n // Always send audio to STT — browser echo cancellation\n // handles speaker echo; continuous audio avoids gaps\n // that increase recognition latency.\n pendingChunk = pendingChunk.then(async () => {\n var data = await e.data.arrayBuffer();\n var uint8Array = new Uint8Array(data);\n var binaryString = uint8Array.reduce(function (str, byte) { return str + String.fromCharCode(byte); }, '');\n var base64 = btoa(binaryString);\n try {\n this._conversationSubject.next(base64);\n } catch (err) {\n // Subject may have been completed already.\n }\n });\n }\n });\n\n this.mediaRecorder.addEventListener('stop', () => {\n stream.getTracks().forEach(track => track.stop());\n pendingChunk.then(() => {\n try {\n this._conversationSubject.complete();\n } catch (err) {\n // Already completed.\n }\n });\n });\n\n var profileId = this.getProfileId();\n var sessionId = this.getSessionId() || '';\n var language = navigator.language || document.documentElement.lang || 'en-US';\n\n this.connection.send(\"StartConversation\", profileId, sessionId, this._conversationSubject, mimeType, language);\n this.mediaRecorder.start(250);\n this.isRecording = true;\n })\n .catch(err => {\n console.error('Microphone access denied:', err);\n this.isConversationMode = false;\n this.updateConversationButton();\n });\n },\n stopConversationMode() {\n if (!this.isConversationMode) {\n return;\n }\n\n this.isConversationMode = false;\n this.updateConversationButton();\n\n // Signal the server to cancel all in-progress STT/TTS streams immediately.\n if (this.connection) {\n this.connection.invoke(\"StopConversation\").catch(function () { });\n }\n\n if (this.isRecording && this.mediaRecorder) {\n this.mediaRecorder.stop();\n this.isRecording = false;\n }\n\n this.stopAudio();\n this._conversationPartialTranscript = '';\n this._conversationPartialMessage = null;\n\n // Clean up the AudioContext used for volume monitoring.\n if (this._conversationAudioCtx) {\n this._conversationAudioCtx.close().catch(function () { });\n this._conversationAudioCtx = null;\n this._conversationAnalyser = null;\n }\n\n // Mark any in-flight assistant message as done to stop the spinner.\n if (this._conversationAssistantMessage) {\n var msg = this.messages[this._conversationAssistantMessage.index];\n if (msg) {\n msg.isStreaming = false;\n }\n this._conversationAssistantMessage = null;\n }\n\n // Safety net: clear all lingering streaming indicators.\n for (var i = 0; i < this.messages.length; i++) {\n if (this.messages[i].isStreaming) {\n this.messages[i].isStreaming = false;\n }\n }\n\n // Show a \"conversation ended\" notification system message.\n this.receiveNotification({\n type: 'conversation-ended',\n content: 'Conversation ended.',\n icon: 'fa-solid fa-circle-check',\n dismissible: true,\n autoDismissMs: 5000\n });\n },\n updateConversationButton() {\n if (!this.conversationButton) {\n return;\n }\n\n if (this.isConversationMode) {\n this.conversationButton.classList.add('active', 'btn-primary');\n this.conversationButton.classList.remove('btn-dark', 'btn-outline-dark', 'btn-outline-secondary');\n this.conversationButton.title = this.conversationButton.getAttribute('data-end-title') || 'End Conversation';\n var endHtml = this.conversationButton.getAttribute('data-end-html');\n if (endHtml) {\n this.conversationButton.replaceChildren(DOMPurify.sanitize(endHtml, { RETURN_DOM_FRAGMENT: true }));\n }\n } else {\n this.conversationButton.classList.remove('active', 'btn-primary');\n this.conversationButton.classList.remove('btn-dark', 'btn-outline-secondary');\n this.conversationButton.classList.add('btn-outline-dark');\n this.conversationButton.blur();\n this.conversationButton.title = this.conversationButton.getAttribute('data-start-title') || 'Start Conversation';\n var startHtml = this.conversationButton.getAttribute('data-start-html');\n if (startHtml) {\n this.conversationButton.replaceChildren(DOMPurify.sanitize(startHtml, { RETURN_DOM_FRAGMENT: true }));\n }\n }\n },\n conversationModeSendPrompt() {\n // Legacy: only used by AudioInput mode's ReceiveTranscript.\n },\n conversationModeOnAudioEnded() {\n // Legacy: in conversation mode, audio playback continuation\n // is handled by the persistent stream. This method is only\n // called from playCollectedAudio for non-conversation TTS.\n },\n generatePrompt(element) {\n if (!element) {\n console.error('The element paramter is required.');\n\n return;\n }\n\n let templateProfileId = element.getAttribute('data-profile-id');\n let sessionId = this.getSessionId();\n let sessionProfileId = this.getProfileId();\n\n if (!templateProfileId || !sessionId) {\n\n console.error('The given element is missing data-profile-id or the session has not yet started.');\n return;\n }\n\n // streamMessage() already shows the typing indicator.\n this.streamMessage(templateProfileId, null, sessionProfileId);\n },\n createSessionUrl(baseUrl, param, value) {\n\n const fullUrl = baseUrl.toLowerCase().startsWith('http') ? baseUrl : window.location.origin + baseUrl;\n const url = new URL(fullUrl);\n\n url.searchParams.set(param, value);\n\n return url.toString();\n },\n showTypingIndicator() {\n this.addMessage({\n role: 'indicator',\n htmlContent: config.indicatorTemplate\n });\n },\n hideTypingIndicator() {\n const originalLength = this.messages.length;\n this.messages = this.messages.filter(msg => msg.role !== 'indicator');\n const removedCount = originalLength - this.messages.length;\n return removedCount;\n },\n receiveNotification(notification) {\n if (!notification || !notification.type) {\n return;\n }\n this.clearNotificationDismiss(notification.type);\n var existingIndex = this.notifications.findIndex(n => n.type === notification.type);\n if (existingIndex >= 0) {\n this.notifications.splice(existingIndex, 1, notification);\n } else {\n this.notifications.push(notification);\n }\n this.scheduleNotificationDismiss(notification);\n this.$nextTick(() => {\n this.scrollToBottom();\n });\n },\n updateNotification(notification) {\n if (!notification || !notification.type) {\n return;\n }\n this.clearNotificationDismiss(notification.type);\n var existingIndex = this.notifications.findIndex(n => n.type === notification.type);\n if (existingIndex >= 0) {\n this.notifications.splice(existingIndex, 1, notification);\n this.scheduleNotificationDismiss(notification);\n }\n },\n scheduleNotificationDismiss(notification) {\n if (!notification || !notification.type || !notification.autoDismissMs || notification.autoDismissMs <= 0) {\n return;\n }\n this.notificationDismissTimers[notification.type] = setTimeout(() => {\n this.removeNotification(notification.type);\n }, notification.autoDismissMs);\n },\n clearNotificationDismiss(notificationType) {\n var timerId = this.notificationDismissTimers[notificationType];\n if (!timerId) {\n return;\n }\n clearTimeout(timerId);\n delete this.notificationDismissTimers[notificationType];\n },\n removeNotification(notificationType) {\n this.clearNotificationDismiss(notificationType);\n this.notifications = this.notifications.filter(n => n.type !== notificationType);\n },\n dismissNotification(notificationType) {\n this.removeNotification(notificationType);\n },\n handleNotificationAction(notificationType, actionName) {\n if (!this.connection) {\n return;\n }\n var sessionId = this.getSessionId();\n this.connection.invoke(\"HandleNotificationAction\", sessionId, notificationType, actionName).catch(function (err) {\n console.error(\"Error handling notification action:\", err);\n });\n },\n scrollToBottom() {\n if (!this.autoScroll) {\n return;\n }\n setTimeout(() => {\n this.chatContainer.scrollTop = this.chatContainer.scrollHeight - this.chatContainer.clientHeight;\n }, 50);\n },\n handleUserInput(event) {\n this.prompt = event.target.value;\n },\n getProfileId() {\n return this.inputElement\n ? this.inputElement.getAttribute('data-profile-id')\n : null;\n },\n setSessionId(sessionId) {\n if (!this.inputElement) {\n return;\n }\n\n this.inputElement.setAttribute('data-session-id', sessionId || '');\n },\n resetSession() {\n this.stopRecording();\n this.rejectPendingSessionRequest('Session was reset.');\n this.setSessionId('');\n this.isSessionStarted = false;\n this.sessionRating = null;\n this.messages = [];\n this.documents = [];\n if (!config.autoCreateSession) {\n this.showPlaceholder();\n }\n\n if (config.autoCreateSession) {\n this.startNewSession();\n }\n\n if (widgetBehavior && typeof widgetBehavior.onSessionReset === 'function') {\n widgetBehavior.onSessionReset(this, config);\n }\n },\n startNewSession() {\n if (!this.applyOrchestratorAvailability()) {\n return;\n }\n\n const profileId = this.getProfileId();\n if (!profileId || !this.connection) {\n return;\n }\n\n this.requestNewSession(profileId).catch(err => console.error(err));\n },\n async ensureSessionForDocuments(profileId) {\n var sessionId = this.getSessionId();\n if (sessionId) {\n return sessionId;\n }\n\n if (!profileId || !this.connection) {\n return null;\n }\n\n return await this.requestNewSession(profileId);\n },\n requestNewSession(profileId) {\n if (this.pendingSessionPromise) {\n return this.pendingSessionPromise;\n }\n\n if (!profileId || !this.connection) {\n return Promise.resolve(null);\n }\n\n this.pendingSessionPromise = new Promise((resolve, reject) => {\n this.pendingSessionResolver = resolve;\n this.pendingSessionRejector = reject;\n this.pendingSessionTimeoutId = window.setTimeout(() => {\n this.rejectPendingSessionRequest('Timed out while creating a chat session.');\n }, 15000);\n });\n\n this.connection.invoke(\"StartSession\", profileId, null).catch(err => {\n this.rejectPendingSessionRequest(err);\n });\n\n return this.pendingSessionPromise;\n },\n resolvePendingSessionRequest(sessionId) {\n if (this.pendingSessionResolver) {\n this.pendingSessionResolver(sessionId);\n }\n\n this.clearPendingSessionRequest();\n },\n rejectPendingSessionRequest(error) {\n if (this.pendingSessionRejector) {\n this.pendingSessionRejector(error);\n }\n\n this.clearPendingSessionRequest();\n },\n clearPendingSessionRequest() {\n if (this.pendingSessionTimeoutId) {\n window.clearTimeout(this.pendingSessionTimeoutId);\n }\n\n this.pendingSessionPromise = null;\n this.pendingSessionResolver = null;\n this.pendingSessionRejector = null;\n this.pendingSessionTimeoutId = null;\n },\n initializeApp() {\n this.inputElement = document.querySelector(config.inputElementSelector);\n this.buttonElement = document.querySelector(config.sendButtonElementSelector);\n this.chatContainer = document.querySelector(config.chatContainerElementSelector);\n this.placeholder = document.querySelector(config.placeholderElementSelector);\n\n if (!this.inputElement || !this.buttonElement || !this.chatContainer || !this.placeholder) {\n console.error('AI chat app could not initialize because one or more required elements were not found.', {\n inputElementSelector: config.inputElementSelector,\n sendButtonElementSelector: config.sendButtonElementSelector,\n chatContainerElementSelector: config.chatContainerElementSelector,\n placeholderElementSelector: config.placeholderElementSelector\n });\n\n return false;\n }\n\n this.applyOrchestratorAvailability();\n\n const sessionId = this.getSessionId();\n if (!hasWidgetConfig && sessionId) {\n this.loadSession(sessionId);\n } else if (this.isOrchestratorAvailable() && config.autoCreateSession && !hasWidgetConfig && !sessionId) {\n this.startNewSession();\n }\n\n // Initialize document bar if enabled.\n if (config.sessionDocumentsEnabled && config.documentBarSelector) {\n this.documentBar = document.querySelector(config.documentBarSelector);\n if (this.documentBar) {\n this.renderDocumentBar();\n\n // Create hidden file input for document uploads.\n var fileInput = document.createElement('input');\n fileInput.type = 'file';\n fileInput.id = 'ai-chat-doc-input';\n fileInput.className = 'd-none';\n fileInput.multiple = true;\n if (config.allowedExtensions) {\n fileInput.accept = config.allowedExtensions;\n }\n fileInput.addEventListener('change', (e) => this.handleFileInputChange(e));\n this.documentBar.parentElement.appendChild(fileInput);\n\n // Set up drag-and-drop on the input area.\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) {\n inputArea.addEventListener('dragover', (e) => this.handleDragOver(e));\n inputArea.addEventListener('dragleave', (e) => this.handleDragLeave(e));\n inputArea.addEventListener('drop', (e) => this.handleDrop(e));\n }\n }\n }\n\n // Pause auto-scroll when the user manually scrolls up during streaming.\n this.chatContainer.addEventListener('scroll', () => {\n if (!this.stream) {\n return;\n }\n const threshold = 30;\n const atBottom = this.chatContainer.scrollHeight - this.chatContainer.clientHeight - this.chatContainer.scrollTop <= threshold;\n this.autoScroll = atBottom;\n });\n\n this.inputElement.addEventListener('keydown', event => {\n\n if (this.stream != null) {\n return;\n }\n\n if (event.key === \"Enter\" && !event.shiftKey) {\n event.preventDefault();\n this.buttonElement.click();\n }\n });\n\n this.inputElement.addEventListener('input', (e) => {\n this.handleUserInput(e);\n\n if (e.target.value.trim()) {\n this.buttonElement.removeAttribute('disabled');\n } else {\n this.buttonElement.setAttribute('disabled', true);\n }\n });\n\n this.buttonElement.addEventListener('click', () => {\n\n if (this.stream != null) {\n this.stream.dispose();\n this.stream = null;\n\n this.streamingFinished();\n this.hideTypingIndicator();\n\n // Clean up: remove empty assistant message or stop streaming animation.\n if (this.messages.length > 0) {\n const lastMsg = this.messages[this.messages.length - 1];\n if (lastMsg.role === 'assistant' && !lastMsg.content) {\n this.messages.pop();\n } else if (lastMsg.isStreaming) {\n lastMsg.isStreaming = false;\n }\n }\n\n return;\n }\n\n this.sendMessage();\n });\n\n const promptGenerators = document.getElementsByClassName('profile-generated-prompt');\n\n for (var i = 0; i < promptGenerators.length; i++) {\n promptGenerators[i].addEventListener('click', (e) => {\n e.preventDefault();\n this.generatePrompt(e.target);\n });\n }\n\n const chatSessions = document.getElementsByClassName('chat-session-history-item');\n\n for (var i = 0; i < chatSessions.length; i++) {\n chatSessions[i].addEventListener('click', (e) => {\n e.preventDefault();\n\n var sessionId = e.target.getAttribute('data-session-id');\n\n if (!sessionId) {\n console.error('an element with the class chat-session-history-item with no data-session-id set.');\n\n return;\n }\n\n this.loadSession(sessionId);\n this.showChatScreen();\n });\n }\n\n for (let i = 0; i < config.messages.length; i++) {\n this.addMessage(config.messages[i]);\n }\n\n // Update feedback icons in the DOM after initial messages have rendered.\n this.$nextTick(() => {\n this.refreshAllFeedbackIcons();\n });\n\n // Delegate click for code block copy buttons.\n if (this.chatContainer) {\n this.chatContainer.addEventListener('click', (e) => {\n var btn = e.target.closest('.ai-code-copy-btn');\n if (!btn) {\n return;\n }\n\n var block = btn.closest('.ai-code-block') || btn.closest('pre');\n if (!block) {\n return;\n }\n\n var codeEl = block.querySelector('code');\n if (codeEl) {\n navigator.clipboard.writeText(codeEl.textContent);\n var copiedText = config.codeCopiedText || 'Copied!';\n btn.innerHTML = ' ' + copiedText;\n setTimeout(() => {\n btn.innerHTML = '';\n }, 2000);\n }\n });\n }\n\n // Initialize speech-to-text microphone button.\n if (this.speechToTextEnabled && config.micButtonElementSelector) {\n this.micButton = document.querySelector(config.micButtonElementSelector);\n if (this.micButton) {\n this.micButton.style.display = '';\n this.micButton.addEventListener('click', () => {\n this.toggleRecording();\n });\n }\n }\n\n // Initialize conversation mode button.\n if (this.conversationModeEnabled && config.conversationButtonElementSelector) {\n this.conversationButton = document.querySelector(config.conversationButtonElementSelector);\n if (this.conversationButton) {\n this.conversationButton.addEventListener('click', () => {\n this.toggleConversationMode();\n });\n }\n }\n\n return true;\n },\n loadSession(sessionId) {\n this.connection.invoke(\"LoadSession\", sessionId).catch(err => console.error(err));\n },\n reloadCurrentSession() {\n\n var sessionId = this.getSessionId();\n if (sessionId) {\n this.loadSession(sessionId);\n }\n },\n initializeSession(sessionId, force) {\n if (this.isSessionStarted && !force) {\n if (sessionId && this.getSessionId() === sessionId) {\n this.resolvePendingSessionRequest(sessionId);\n }\n\n return\n }\n this.fireEvent(new CustomEvent(\"initializingSessionOpenAIChat\", { detail: { sessionId: sessionId } }))\n this.setSessionId(sessionId);\n this.isSessionStarted = true;\n this.resolvePendingSessionRequest(sessionId);\n\n if (widgetBehavior && typeof widgetBehavior.onSessionInitialized === 'function') {\n widgetBehavior.onSessionInitialized(this, sessionId, config);\n }\n },\n getSessionId() {\n let sessionId = this.inputElement\n ? this.inputElement.getAttribute('data-session-id')\n : null;\n\n if (!sessionId && widgetBehavior && typeof widgetBehavior.resolveSessionId === 'function') {\n sessionId = widgetBehavior.resolveSessionId(this, config);\n }\n\n return sessionId;\n },\n copyResponse(message) {\n const text = message && typeof message === 'object'\n ? message.copyContent ?? message.content ?? ''\n : message ?? '';\n\n navigator.clipboard.writeText(text);\n },\n updateFeedbackIcons(container, userRating) {\n if (!container) {\n return;\n }\n\n var upBtn = container.querySelector('.rate-up-btn');\n var downBtn = container.querySelector('.rate-down-btn');\n\n // Keep feedback icons as simple span-based Font Awesome markup so\n // later state updates do not depend on i2svg replacement.\n if (upBtn) {\n var upClass = userRating === true ? 'fa-solid fa-thumbs-up' : 'fa-regular fa-thumbs-up';\n var upIcon = document.createElement('span');\n upIcon.className = upClass;\n upIcon.style.fontSize = '0.9rem';\n upBtn.textContent = '';\n upBtn.appendChild(upIcon);\n }\n\n if (downBtn) {\n var downClass = userRating === false ? 'fa-solid fa-thumbs-down' : 'fa-regular fa-thumbs-down';\n var downIcon = document.createElement('span');\n downIcon.className = downClass;\n downIcon.style.fontSize = '0.9rem';\n downBtn.textContent = '';\n downBtn.appendChild(downIcon);\n }\n },\n refreshAllFeedbackIcons() {\n var containers = this.$el.querySelectorAll('.ai-chat-message-assistant-feedback');\n\n for (var i = 0; i < containers.length; i++) {\n var msgId = containers[i].getAttribute('data-message-id');\n var msg = this.messages.find(m => m.id === msgId);\n\n if (msg) {\n this.updateFeedbackIcons(containers[i], msg.userRating);\n }\n }\n },\n rateMessage(message, isPositive, event) {\n var sessionId = this.getSessionId();\n\n if (!sessionId || !message.id || !this.connection) {\n return;\n }\n\n // Toggle: clicking the same rating again clears it.\n var newRating = message.userRating === isPositive ? null : isPositive;\n message.userRating = newRating;\n\n // Find the feedback container by message ID for reliable DOM targeting.\n var feedbackContainer = this.$el.querySelector(\n '.ai-chat-message-assistant-feedback[data-message-id=\"' + message.id + '\"]'\n );\n\n this.updateFeedbackIcons(feedbackContainer, newRating);\n\n // Trigger spark animation after Font Awesome has re-processed icons.\n if (newRating !== null && feedbackContainer) {\n setTimeout(() => {\n var btnClass = isPositive ? '.rate-up-btn' : '.rate-down-btn';\n var btn = feedbackContainer.querySelector(btnClass);\n\n if (btn) {\n btn.classList.remove('spark-effect');\n void btn.offsetWidth;\n btn.classList.add('spark-effect');\n btn.addEventListener('animationend', function onEnd() {\n btn.removeEventListener('animationend', onEnd);\n btn.classList.remove('spark-effect');\n });\n }\n }, 50);\n }\n\n this.connection.invoke(\"RateMessage\", sessionId, message.id, isPositive).catch(function (err) {\n console.error('Failed to rate message:', err);\n });\n }\n },\n watch: {\n documents: {\n handler() {\n this.renderDocumentBar();\n if (widgetBehavior && typeof widgetBehavior.onDocumentsChanged === 'function') {\n widgetBehavior.onDocumentsChanged(this, this.documents, config);\n }\n },\n deep: true\n },\n isUploading() { this.renderDocumentBar(); },\n isDocumentOperationPending() { this.renderDocumentBar(); },\n isPlayingAudio() {\n // Reserved for future use — volume-based interrupt detection\n // no longer mutes tracks; browser echo cancellation handles echo.\n },\n isConversationMode(active) {\n // Hide/show mic button.\n if (this.micButton) {\n this.micButton.style.display = active ? 'none' : (this.speechToTextEnabled ? '' : 'none');\n }\n\n // Hide/show send button.\n if (this.buttonElement) {\n this.buttonElement.style.display = active ? 'none' : '';\n }\n\n // Disable/enable textarea.\n if (this.inputElement) {\n this.inputElement.disabled = active;\n if (active) {\n this.inputElement.placeholder = '';\n }\n }\n }\n },\n mounted() {\n (async () => {\n await this.startConnection();\n const isInitialized = this.initializeApp();\n if (isInitialized && hasWidgetConfig && widgetBehavior && typeof widgetBehavior.onMounted === 'function') {\n widgetBehavior.onMounted(this, config);\n }\n\n this.$nextTick(() => {\n refreshFontAwesomeIcons(this.$el);\n this.fontAwesomeObserver = observeFontAwesomeIcons(this.$el);\n });\n })();\n\n window.addEventListener('beforeunload', this.handleBeforeUnload);\n window.addEventListener('crestapps-ai-chat-stop-tts', this.handleExternalTtsStop);\n },\n beforeUnmount() {\n window.removeEventListener('beforeunload', this.handleBeforeUnload);\n window.removeEventListener('crestapps-ai-chat-stop-tts', this.handleExternalTtsStop);\n\n if (this.fontAwesomeObserver) {\n this.fontAwesomeObserver.disconnect();\n this.fontAwesomeObserver = null;\n }\n\n this.stopAudio(false);\n\n if (this.stream) {\n this.stream.dispose();\n this.stream = null;\n }\n if (this.connection) {\n this.connection.stop();\n }\n\n if (widgetBehavior && typeof widgetBehavior.onBeforeUnmount === 'function') {\n widgetBehavior.onBeforeUnmount(this, config);\n }\n },\n template: config.messageTemplate\n };\n\n const app = Vue.createApp(appDefinition).mount(config.appElementSelector);\n\n if (widgetBehavior && typeof widgetBehavior.attach === 'function') {\n widgetBehavior.attach(app, config);\n }\n\n return app;\n };\n\n return {\n initialize: initialize\n };\n}();\n\n// Download chart as image via event delegation (DOMPurify strips inline onclick).\ndocument.addEventListener('click', function (e) {\n const btn = e.target.closest('.download-chart-btn');\n if (!btn) {\n return;\n }\n const chartId = btn.getAttribute('data-chart-id');\n const canvas = chartId ? document.getElementById(chartId) : null;\n if (!canvas) {\n console.error('Chart canvas not found:', chartId);\n return;\n }\n const link = document.createElement('a');\n link.download = 'chart-' + chartId + '.png';\n link.href = canvas.toDataURL('image/png');\n link.click();\n});\n\n// Intercept download clicks for data-URI images and convert to blob downloads.\ndocument.addEventListener('click', function (e) {\n const link = e.target.closest('.ai-download-image');\n if (!link) {\n return;\n }\n\n const container = link.closest('.generated-image-container');\n const img = container?.querySelector('img');\n if (!img) {\n return;\n }\n\n const src = img.src;\n if (!src || !src.startsWith('data:')) {\n return; // Normal URL – let the default behaviour handle it.\n }\n\n e.preventDefault();\n\n fetch(src)\n .then(function (res) { return res.blob(); })\n .then(function (blob) {\n const url = URL.createObjectURL(blob);\n const a = document.createElement('a');\n a.href = url;\n a.download = 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\n `,\n indicatorTemplate: `\n\n \n Assistant\n
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escapeHtmlEntities(lang) : 'code';\n return ` ${langDisplay}
${highlighted}\n ![\"${alt}\"](\"${src}\")
\n
`;\n };\n\n // Chart counter for unique IDs\n let chartCounter = 0;\n\n // Collector for charts discovered during marked parsing.\n let _pendingCharts = [];\n\n // Global chart config map: any page (e.g., Chat Interactions) that uses\n // the shared marked instance can call window.renderPendingCharts() after\n // its DOM update to render charts it didn't create itself.\n window.__chartConfigs = window.__chartConfigs || {};\n\n function createChartHtml(chartId) {\n return `\n \n \n \n
\n `\n + ``\n + `
`\n + ``\n + ``\n + `
`;\n }\n\n // Register [chart:{...json...}] as a native marked block extension so the\n // markdown parser handles chart markers inline with surrounding text.\n marked.use({\n extensions: [{\n name: 'chart',\n level: 'block',\n start(src) {\n const idx = src.indexOf('[chart:');\n return idx >= 0 ? idx : undefined;\n },\n tokenizer(src) {\n const extracted = tryExtractChartMarker(src);\n if (!extracted || extracted.startIndex !== 0) {\n return undefined;\n }\n\n const chartId = `chat_chart_${++chartCounter}`;\n\n return {\n type: 'chart',\n raw: src.substring(0, extracted.endIndex),\n chartId: chartId,\n json: extracted.json,\n };\n },\n renderer(token) {\n _pendingCharts.push({ chartId: token.chartId, config: token.json });\n window.__chartConfigs[token.chartId] = token.json;\n return createChartHtml(token.chartId);\n }\n }]\n });\n\n // Extract a [chart:{...json...}] marker. This avoids regex issues with nested brackets.\n function tryExtractChartMarker(text) {\n const token = '[chart:';\n const start = text.indexOf(token);\n if (start < 0) {\n return null;\n }\n\n // Find JSON object boundary by balancing braces\n const jsonStart = start + token.length;\n let i = jsonStart;\n while (i < text.length && (text[i] === ' ' || text[i] === '\\n' || text[i] === '\\r' || text[i] === '\\t')) {\n i++;\n }\n\n if (i >= text.length || text[i] !== '{') {\n return null;\n }\n\n let depth = 0;\n let inString = false;\n let escape = false;\n\n for (; i < text.length; i++) {\n const ch = text[i];\n\n if (inString) {\n if (escape) {\n escape = false;\n continue;\n }\n if (ch === '\\\\') {\n escape = true;\n continue;\n }\n if (ch === '\"') {\n inString = false;\n }\n continue;\n }\n\n if (ch === '\"') {\n inString = true;\n continue;\n }\n\n if (ch === '{') {\n depth++;\n } else if (ch === '}') {\n depth--;\n if (depth === 0) {\n const jsonEnd = i;\n // Expect closing bracket after JSON\n const closeBracketIndex = text.indexOf(']', jsonEnd + 1);\n if (closeBracketIndex < 0) {\n return null;\n }\n\n const json = text.substring(jsonStart, jsonEnd + 1).trim();\n return {\n startIndex: start,\n endIndex: closeBracketIndex + 1,\n json: json\n };\n }\n }\n }\n\n return null;\n }\n\n function renderChartsInMessage(message) {\n if (!message || !message._pendingCharts || !message._pendingCharts.length) {\n return;\n }\n\n // Copy and clear pending charts immediately to prevent duplicate renders.\n const charts = [...message._pendingCharts];\n message._pendingCharts = [];\n\n // Defer to requestAnimationFrame so the browser has fully laid out the\n // canvas elements before Chart.js reads their dimensions.\n requestAnimationFrame(() => {\n for (const c of charts) {\n renderChartOnCanvas(c.chartId, c.config);\n }\n });\n }\n\n function renderChartOnCanvas(chartId, config) {\n const canvas = document.getElementById(chartId);\n if (!canvas) {\n return false;\n }\n\n if (typeof Chart === 'undefined') {\n console.warn('Chart.js is not loaded. To render interactive charts, include the Chart.js library on the page (e.g., ).');\n return false;\n }\n\n // When the canvas is inside a hidden container (e.g., a widget panel with\n // display:none), it has zero dimensions and Chart.js cannot render correctly.\n // Keep the config in __chartConfigs so renderPendingCharts() can retry later\n // once the container becomes visible.\n if (canvas.offsetParent === null) {\n window.__chartConfigs[chartId] = config;\n return false;\n }\n\n try {\n if (canvas._chartInstance) {\n canvas._chartInstance.destroy();\n }\n\n const cfg = typeof config === 'string' ? JSON.parse(config) : config;\n cfg.options ??= {};\n cfg.options.responsive = true;\n cfg.options.maintainAspectRatio = true;\n cfg.options.aspectRatio ??= 4 / 3;\n\n canvas._chartInstance = new Chart(canvas, cfg);\n delete window.__chartConfigs[chartId];\n return true;\n } catch (e) {\n console.error('Error creating chart:', e);\n return false;\n }\n }\n\n // Global function: renders any chart canvases whose configs are in the\n // global __chartConfigs map. Called by pages (e.g., Chat Interactions)\n // that share the marked instance but have their own rendering pipeline.\n window.renderPendingCharts = function () {\n if (typeof Chart === 'undefined') {\n return;\n }\n\n const configs = window.__chartConfigs;\n if (!configs) {\n return;\n }\n\n requestAnimationFrame(() => {\n for (const chartId of Object.keys(configs)) {\n renderChartOnCanvas(chartId, configs[chartId]);\n }\n });\n };\n\n // Parse markdown content via marked (which natively handles [chart:...] markers\n // through the registered extension) and collect pending chart configs for later\n // Chart.js rendering.\n function parseMarkdownContent(content, message) {\n _pendingCharts = [];\n const html = marked.parse(content, { renderer });\n message._pendingCharts = _pendingCharts.length > 0 ? [..._pendingCharts] : [];\n return DOMPurify.sanitize(html, { ADD_TAGS: ['canvas'], ADD_ATTR: ['target'] });\n }\n\n const initialize = (instanceConfig) => {\n\n const config = Object.assign({}, defaultConfig, instanceConfig);\n config.widget = Object.assign({}, defaultConfig.widget || {}, instanceConfig && instanceConfig.widget ? instanceConfig.widget : {});\n const hasWidgetConfig = !!(instanceConfig && instanceConfig.widget && instanceConfig.widget.chatWidgetContainer && instanceConfig.widget.chatWidgetStateName);\n const widgetBehavior = window.openAIChatWidgetBehavior || null;\n // Keep defaultConfig in sync so renderers use overridden values\n defaultConfig = config;\n\n if (!config.signalRHubUrl) {\n console.error('The signalRHubUrl is required.');\n return;\n }\n\n if (!config.appElementSelector) {\n console.error('The appElementSelector is required.');\n return;\n }\n\n if (!config.chatContainerElementSelector) {\n console.error('The chatContainerElementSelector is required.');\n return;\n }\n\n if (!config.inputElementSelector) {\n console.error('The inputElementSelector is required.');\n return;\n }\n\n if (!config.sendButtonElementSelector) {\n console.error('The sendButtonElementSelector is required.');\n return;\n }\n\n const appDefinition = {\n data() {\n return {\n inputElement: null,\n buttonElement: null,\n chatContainer: null,\n placeholder: null,\n isSessionStarted: false,\n isPlaceholderVisible: true,\n isStreaming: false,\n isNavigatingAway: false,\n autoScroll: true,\n stream: null,\n messages: [],\n notifications: [],\n prompt: '',\n documents: config.existingDocuments || [],\n isUploading: false,\n isDocumentOperationPending: false,\n documentOperationQueue: null,\n uploadErrors: [],\n isDragOver: false,\n documentBar: null,\n metricsEnabled: !!config.metricsEnabled,\n userLabel: config.userLabel,\n assistantLabel: config.assistantLabel,\n thumbsUpTitle: config.thumbsUpTitle,\n thumbsDownTitle: config.thumbsDownTitle,\n copyTitle: config.copyTitle,\n isRecording: false,\n mediaRecorder: null,\n preRecordingPrompt: '',\n micButton: null,\n speechToTextEnabled: config.chatMode === 'AudioInput' || config.chatMode === 'Conversation',\n textToSpeechEnabled: config.chatMode === 'Conversation' || !!config.textToSpeechEnabled,\n ttsVoiceName: config.ttsVoiceName || null,\n audioChunks: [],\n audioPlayQueue: [],\n isPlayingAudio: false,\n currentAudioElement: null,\n currentAudioUrl: null,\n ttsButton: null,\n ttsPlayingMessageIndex: -1,\n ttsAudioCache: {},\n ttsInstanceId: 'ai-chat-' + Math.random().toString(36).slice(2),\n singleResponseMode: !!config.singleResponseMode,\n conversationModeEnabled: config.chatMode === 'Conversation',\n conversationButton: null,\n isConversationMode: false,\n notificationDismissTimers: {},\n pendingSessionPromise: null,\n pendingSessionResolver: null,\n pendingSessionRejector: null,\n pendingSessionTimeoutId: null,\n };\n },\n computed: {\n lastAssistantIndex() {\n for (var i = this.messages.length - 1; i >= 0; i--) {\n if (this.messages[i].role === 'assistant') {\n return i;\n }\n }\n return -1;\n }\n },\n methods: {\n handleBeforeUnload() {\n this.isNavigatingAway = true;\n },\n handleDragOver(e) {\n if (!config.sessionDocumentsEnabled) return;\n e.preventDefault();\n e.stopPropagation();\n this.isDragOver = true;\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) inputArea.classList.add('ai-chat-drag-over');\n },\n handleDragLeave(e) {\n if (!config.sessionDocumentsEnabled) return;\n e.preventDefault();\n e.stopPropagation();\n this.isDragOver = false;\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) inputArea.classList.remove('ai-chat-drag-over');\n },\n handleDrop(e) {\n if (!config.sessionDocumentsEnabled) return;\n e.preventDefault();\n e.stopPropagation();\n this.isDragOver = false;\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) inputArea.classList.remove('ai-chat-drag-over');\n if (e.dataTransfer && e.dataTransfer.files && e.dataTransfer.files.length > 0) {\n this.uploadFiles(Array.from(e.dataTransfer.files));\n }\n },\n triggerFileInput() {\n if (!config.sessionDocumentsEnabled || this.isDocumentOperationPending) return;\n var fileInput = document.getElementById('ai-chat-doc-input');\n if (fileInput) fileInput.click();\n },\n handleFileInputChange(e) {\n var files = e.target.files ? Array.from(e.target.files) : [];\n if (files && files.length > 0) {\n this.uploadFiles(files);\n }\n e.target.value = '';\n },\n queueDocumentOperation(operation) {\n var self = this;\n var previousOperation = this.documentOperationQueue || Promise.resolve();\n var nextOperation = previousOperation\n .catch(function () { })\n .then(async function () {\n self.isDocumentOperationPending = true;\n try {\n return await operation();\n } finally {\n self.isDocumentOperationPending = false;\n }\n });\n\n this.documentOperationQueue = nextOperation.finally(function () {\n if (self.documentOperationQueue === nextOperation) {\n self.documentOperationQueue = null;\n }\n });\n\n return this.documentOperationQueue;\n },\n async uploadFiles(files) {\n if (!config.uploadDocumentUrl) return;\n\n var filesToUpload = Array.isArray(files) ? files.slice() : Array.from(files || []);\n if (filesToUpload.length === 0) return;\n\n return this.queueDocumentOperation(async () => {\n var sessionId = this.getSessionId();\n var profileId = this.getProfileId();\n\n if (!sessionId) {\n try {\n sessionId = await this.ensureSessionForDocuments(profileId);\n } catch (err) {\n console.error('Failed to create a chat session for document upload:', err);\n this.uploadErrors = [{ fileName: '', error: 'Could not create a chat session for the upload.' }];\n this.renderDocumentBar();\n return;\n }\n }\n\n if (!sessionId) {\n console.warn('Cannot upload documents without a session or profile.');\n this.uploadErrors = [{ fileName: '', error: 'Could not create a chat session for the upload.' }];\n this.renderDocumentBar();\n return;\n }\n\n this.isUploading = true;\n this.uploadErrors = [];\n this.renderDocumentBar();\n try {\n var formData = new FormData();\n formData.append('sessionId', sessionId);\n for (var i = 0; i < filesToUpload.length; i++) {\n formData.append('files', filesToUpload[i]);\n }\n\n var response = await fetch(config.uploadDocumentUrl, {\n method: 'POST',\n body: formData\n });\n\n if (!response.ok) {\n var errorText = await response.text();\n var uploadError = this.extractReadableErrorMessage(errorText, 'Upload failed. Please try again.');\n console.error('Upload failed:', errorText);\n this.uploadErrors = [{ fileName: '', error: uploadError }];\n return;\n }\n\n var result = await response.json();\n\n if (result.sessionId && result.sessionId !== this.getSessionId()) {\n this.initializeSession(result.sessionId);\n }\n\n if (Array.isArray(result.documents)) {\n this.documents = result.documents;\n } else if (result.uploaded && result.uploaded.length > 0) {\n this.documents = this.documents.concat(result.uploaded);\n }\n\n if (result.failed && result.failed.length > 0) {\n this.uploadErrors = result.failed;\n }\n } catch (err) {\n console.error('Upload error:', err);\n this.uploadErrors = [{ fileName: '', error: 'Upload failed. Please try again.' }];\n\n if (this.getSessionId()) {\n this.reloadCurrentSession();\n }\n } finally {\n this.isUploading = false;\n this.renderDocumentBar();\n }\n });\n },\n async removeDocument(doc) {\n if (!config.removeDocumentUrl) return;\n\n return this.queueDocumentOperation(async () => {\n try {\n var sessionId = this.getSessionId();\n var response = await fetch(config.removeDocumentUrl, {\n method: 'POST',\n headers: { 'Content-Type': 'application/json' },\n body: JSON.stringify({ itemId: sessionId, documentId: doc.documentId })\n });\n\n if (response.ok) {\n var result = await response.json();\n\n if (Array.isArray(result.documents)) {\n this.documents = result.documents;\n } else {\n var idx = this.documents.indexOf(doc);\n if (idx > -1) {\n this.documents.splice(idx, 1);\n }\n }\n } else {\n var errorText = await response.text();\n var removeError = this.extractReadableErrorMessage(errorText, 'Failed to remove document. Please try again.');\n console.error('Failed to remove document:', response.status, errorText);\n this.uploadErrors = [{ fileName: doc.fileName || '', error: removeError }];\n if (sessionId) {\n this.reloadCurrentSession();\n }\n this.renderDocumentBar();\n }\n } catch (err) {\n console.error('Remove document error:', err);\n this.uploadErrors = [{ fileName: doc.fileName || '', error: 'Failed to remove document. Please try again.' }];\n if (this.getSessionId()) {\n this.reloadCurrentSession();\n }\n this.renderDocumentBar();\n }\n });\n },\n formatFileSize(bytes) {\n if (bytes < 1024) return bytes + ' B';\n if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';\n return (bytes / (1024 * 1024)).toFixed(1) + ' MB';\n },\n renderDocumentBar() {\n if (!this.documentBar) return;\n\n if (!config.sessionDocumentsEnabled) {\n this.documentBar.classList.add('d-none');\n return;\n }\n\n this.documentBar.classList.remove('d-none');\n\n var html = '';\n\n this.documentBar.replaceChildren(DOMPurify.sanitize(html, { RETURN_DOM_FRAGMENT: true }));\n\n // Bind remove handlers\n var self = this;\n var closeButtons = this.documentBar.querySelectorAll('[data-doc-index]');\n for (var j = 0; j < closeButtons.length; j++) {\n closeButtons[j].addEventListener('click', (function (idx) {\n return function (e) {\n e.preventDefault();\n e.stopPropagation();\n if (self.isDocumentOperationPending) {\n return;\n }\n\n var docToRemove = self.documents[idx];\n if (docToRemove) self.removeDocument(docToRemove);\n };\n })(parseInt(closeButtons[j].getAttribute('data-doc-index'))));\n }\n\n // Bind error dismiss handlers\n var errorCloseButtons = this.documentBar.querySelectorAll('[data-error-index]');\n for (var n = 0; n < errorCloseButtons.length; n++) {\n errorCloseButtons[n].addEventListener('click', (function (idx) {\n return function (e) {\n e.preventDefault();\n e.stopPropagation();\n self.uploadErrors.splice(idx, 1);\n self.renderDocumentBar();\n };\n })(parseInt(errorCloseButtons[n].getAttribute('data-error-index'))));\n }\n\n // Bind add button\n var addBtn = this.documentBar.querySelector('.ai-chat-doc-add-btn');\n if (addBtn) {\n addBtn.addEventListener('click', function (e) {\n e.preventDefault();\n if (self.isDocumentOperationPending) {\n return;\n }\n self.triggerFileInput();\n });\n }\n },\n escapeHtml(text) {\n var div = document.createElement('div');\n div.textContent = text;\n return div.innerHTML;\n },\n extractReadableErrorMessage(errorText, fallbackMessage) {\n if (!errorText || typeof errorText !== 'string') {\n return fallbackMessage;\n }\n\n var trimmed = errorText.trim();\n if (!trimmed) {\n return fallbackMessage;\n }\n\n if (trimmed.startsWith('{') || trimmed.startsWith('[')) {\n try {\n var parsed = JSON.parse(trimmed);\n var message = parsed?.error || parsed?.message || parsed?.title || parsed?.detail;\n return typeof message === 'string' && message.trim()\n ? message.trim()\n : fallbackMessage;\n } catch (err) {\n return fallbackMessage;\n }\n }\n\n if (/<[^>]+>/.test(trimmed)) {\n return fallbackMessage;\n }\n\n return trimmed;\n },\n normalizeAssistantAppearance(appearance) {\n if (!appearance) {\n return null;\n }\n\n var label = typeof appearance.label === 'string' ? appearance.label.trim() : '';\n var icon = typeof appearance.icon === 'string' ? appearance.icon.trim() : '';\n var cssClass = typeof appearance.cssClass === 'string' ? appearance.cssClass.trim() : '';\n var disableStreamingAnimation = !!appearance.disableStreamingAnimation;\n\n if (!label && !icon && !cssClass && !disableStreamingAnimation) {\n return null;\n }\n\n return {\n label: label,\n icon: icon,\n cssClass: cssClass,\n disableStreamingAnimation: disableStreamingAnimation,\n };\n },\n getAssistantLabel(message) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return appearance && appearance.label ? appearance.label : this.assistantLabel;\n },\n getAssistantRoleClasses(message) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n var classes = ['ai-chat-msg-role'];\n\n if (appearance && appearance.cssClass) {\n classes.push(appearance.cssClass);\n } else {\n classes.push('ai-chat-msg-role-assistant');\n }\n\n return classes;\n },\n getAssistantIconClasses(message, index) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return [this.shouldAnimateAssistantIcon(message, index) ? 'ai-streaming-icon' : 'ai-bot-icon', appearance && appearance.cssClass ? appearance.cssClass : ''];\n },\n getAssistantIcon(message) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return appearance && appearance.icon ? appearance.icon : 'fa fa-robot';\n },\n shouldAnimateAssistantIcon(message, index) {\n var appearance = message ? this.normalizeAssistantAppearance(message.appearance) : null;\n return !!message &&\n message.isStreaming &&\n index === this.lastAssistantIndex &&\n !(appearance && appearance.disableStreamingAnimation);\n },\n async startConnection() {\n this.connection = new signalR.HubConnectionBuilder()\n .withUrl(config.signalRHubUrl)\n .withAutomaticReconnect()\n .build();\n\n // Allow long-running operations (e.g., multi-step MCP tool calls)\n // without the client disconnecting prematurely.\n this.connection.serverTimeoutInMilliseconds = 600000;\n this.connection.keepAliveIntervalInMilliseconds = 15000;\n\n this.connection.on(\"LoadSession\", (data) => {\n this.initializeSession(data.sessionId, true);\n this.messages = [];\n this.documents = data.documents || [];\n this.uploadErrors = [];\n\n (data.messages ?? []).forEach(msg => {\n this.addMessage(msg);\n\n this.$nextTick(() => {\n renderChartsInMessage(msg);\n });\n });\n\n // Update feedback icons in the DOM after all messages have rendered.\n this.$nextTick(() => {\n this.refreshAllFeedbackIcons();\n });\n\n // When the session is new (no messages) and an initial prompt is configured,\n // automatically send it as the first user message to trigger an AI response.\n if (this.messages.length === 0 && config.initialPrompt) {\n this.prompt = config.initialPrompt;\n this.sendMessage();\n }\n });\n\n this.connection.on(\"ReceiveError\", (error) => {\n console.error(\"SignalR Error: \", error);\n\n if (this.isRecording) {\n this.stopRecording();\n }\n\n if (widgetBehavior && typeof widgetBehavior.handleReceiveError === 'function') {\n widgetBehavior.handleReceiveError(this, error, config);\n }\n });\n\n this.connection.on(\"MessageRated\", (messageId, userRating) => {\n var msg = this.messages.find(m => m.id === messageId);\n if (msg) {\n msg.userRating = userRating;\n }\n });\n\n this.connection.on(\"ReceiveTranscript\", (sessionId, text, isFinal) => {\n if (this.isConversationMode) {\n if (!isFinal && text) {\n this._conversationPartialTranscript = text;\n var escaped = text.replace(/&/g, '&').replace(//g, '>');\n var html = '' + escaped + '
';\n\n // Show partial transcript as a live user message.\n if (!this._conversationPartialMessage) {\n this.hidePlaceholder();\n this._conversationPartialMessage = {\n role: 'user',\n content: text,\n htmlContent: html,\n isPartial: true\n };\n this.messages.push(this._conversationPartialMessage);\n } else {\n this._conversationPartialMessage.content = text;\n this._conversationPartialMessage.htmlContent = html;\n }\n this.scrollToBottom();\n }\n return;\n }\n\n if (text && !this._audioInputSent) {\n this.prompt = this.preRecordingPrompt + text;\n if (this.inputElement) {\n this.inputElement.value = this.prompt;\n this.inputElement.dispatchEvent(new Event('input'));\n }\n }\n });\n\n this.connection.on(\"ReceiveConversationUserMessage\", (sessionId, text) => {\n if (text) {\n this.stopAudio();\n\n // If there's an interrupted assistant message still streaming,\n // mark it as done to stop the spinner animation.\n if (this._conversationAssistantMessage) {\n var oldMsg = this.messages[this._conversationAssistantMessage.index];\n if (oldMsg) {\n oldMsg.isStreaming = false;\n }\n this._conversationAssistantMessage = null;\n }\n\n // Replace the partial transcript message with the final one.\n if (this._conversationPartialMessage) {\n var escaped = text.replace(/&/g, '&').replace(//g, '>');\n this._conversationPartialMessage.content = text;\n this._conversationPartialMessage.htmlContent = '' + escaped + '
';\n this._conversationPartialMessage.isPartial = false;\n this._conversationPartialMessage = null;\n } else {\n this.addMessage({\n role: 'user',\n content: text\n });\n }\n this.scrollToBottom();\n }\n });\n\n this.connection.on(\"ReceiveConversationAssistantToken\", (sessionId, messageId, token, responseId, references, appearance) => {\n if (!this._conversationAssistantMessage) {\n this.stopAudio();\n this.hideTypingIndicator();\n\n // Ensure no stale streaming indicators remain from prior messages.\n for (var j = 0; j < this.messages.length; j++) {\n if (this.messages[j].isStreaming) {\n this.messages[j].isStreaming = false;\n }\n }\n\n var msgIndex = this.messages.length;\n var newMessage = {\n id: messageId,\n role: \"assistant\",\n content: \"\",\n htmlContent: \"\",\n isStreaming: true,\n userRating: null,\n appearance: this.normalizeAssistantAppearance(appearance),\n references: {},\n };\n this.messages.push(newMessage);\n this._conversationAssistantMessage = { index: msgIndex, content: '' };\n }\n\n this._conversationAssistantMessage.content += token;\n var msg = this.messages[this._conversationAssistantMessage.index];\n if (msg) {\n if (!msg.appearance) {\n msg.appearance = this.normalizeAssistantAppearance(appearance);\n }\n msg.rawContent = this._conversationAssistantMessage.content;\n msg.references = normalizeReferences(Object.assign({}, msg.references || {}, references || {}));\n updateMessagePresentation(msg, msg.references);\n this.$nextTick(() => {\n renderChartsInMessage(msg);\n this.scrollToBottom();\n });\n }\n });\n\n this.connection.on(\"ReceiveConversationAssistantComplete\", (sessionId, messageId, references) => {\n if (this._conversationAssistantMessage) {\n var msg = this.messages[this._conversationAssistantMessage.index];\n if (msg) {\n msg.isStreaming = false;\n msg.references = normalizeReferences(Object.assign({}, msg.references || {}, references || {}));\n updateMessagePresentation(msg, msg.references);\n }\n this._conversationAssistantMessage = null;\n }\n });\n\n this.connection.on(\"ReceiveAudioChunk\", (sessionId, base64Audio, contentType) => {\n if (base64Audio) {\n const binaryString = atob(base64Audio);\n const bytes = new Uint8Array(binaryString.length);\n for (let i = 0; i < binaryString.length; i++) {\n bytes[i] = binaryString.charCodeAt(i);\n }\n this.audioChunks.push(bytes);\n }\n });\n\n this.connection.on(\"ReceiveAudioComplete\", (sessionId) => {\n this.playCollectedAudio();\n });\n\n this.connection.on(\"ReceiveNotification\", (notification) => {\n this.receiveNotification(notification);\n });\n\n this.connection.on(\"UpdateNotification\", (notification) => {\n this.updateNotification(notification);\n });\n\n this.connection.on(\"RemoveNotification\", (notificationType) => {\n this.removeNotification(notificationType);\n });\n\n this.connection.onreconnecting(() => {\n console.warn(\"SignalR: reconnecting...\");\n });\n\n this.connection.onreconnected(() => {\n console.info(\"SignalR: reconnected.\");\n\n if (this.isSessionStarted) {\n this.reloadCurrentSession();\n } else if (config.autoCreateSession) {\n this.startNewSession();\n }\n });\n\n this.connection.onclose((error) => {\n if (this.isNavigatingAway) {\n return;\n }\n\n if (error) {\n console.warn(\"SignalR connection closed with error:\", error.message || error);\n }\n });\n\n try {\n await this.connection.start();\n } catch (err) {\n console.error(\"SignalR Connection Error: \", err);\n }\n },\n addMessageInternal(message) {\n if (message.role === 'assistant') {\n message.appearance = this.normalizeAssistantAppearance(message.appearance);\n }\n\n if (message.content && !message.htmlContent) {\n message.htmlContent = parseMarkdownContent(message.content, message);\n }\n this.fireEvent(new CustomEvent(\"addingOpenAIPromotMessage\", { detail: { message: message } }));\n this.messages.push(message);\n\n this.$nextTick(() => {\n this.fireEvent(new CustomEvent(\"addedOpenAIPromotMessage\", { detail: { message: message } }));\n });\n },\n addMessage(message) {\n\n // Ensure userRating is always defined for Vue reactivity.\n if (message.userRating === undefined) {\n message.userRating = null;\n }\n\n if (message.content) {\n message.rawContent = message.rawContent ?? message.content;\n updateMessagePresentation(message, message.references);\n }\n\n this.addMessageInternal(message);\n this.hidePlaceholder();\n\n this.$nextTick(() => {\n // Render any pending charts once the DOM is updated\n renderChartsInMessage(message);\n this.scrollToBottom();\n });\n },\n addMessages(messages) {\n\n for (let i = 0; i < messages.length; i++) {\n this.addMessageInternal(messages[i]);\n }\n\n this.hidePlaceholder();\n this.$nextTick(() => {\n this.scrollToBottom();\n });\n },\n hidePlaceholder() {\n if (this.placeholder) {\n this.placeholder.classList.add('d-none');\n }\n this.isPlaceholderVisible = false;\n },\n showPlaceholder() {\n if (this.placeholder) {\n this.placeholder.classList.remove('d-none');\n }\n this.isPlaceholderVisible = true;\n },\n isOrchestratorAvailable() {\n return config.isOrchestratorAvailable !== false;\n },\n applyOrchestratorAvailability() {\n if (this.isOrchestratorAvailable()) {\n return true;\n }\n\n const unavailableMessage = config.orchestratorUnavailableMessage || \"This orchestrator is not currently available.\";\n\n if (this.inputElement) {\n this.inputElement.disabled = true;\n this.inputElement.value = '';\n this.inputElement.placeholder = unavailableMessage;\n }\n\n if (this.buttonElement) {\n this.buttonElement.disabled = true;\n }\n\n if (this.micButtonElement) {\n this.micButtonElement.disabled = true;\n this.micButtonElement.style.display = 'none';\n }\n\n if (this.conversationButtonElement) {\n this.conversationButtonElement.disabled = true;\n this.conversationButtonElement.style.display = 'none';\n }\n\n return false;\n },\n fireEvent(event) {\n document.dispatchEvent(event);\n },\n isIndicator(message) {\n return message.role === 'indicator';\n },\n sendMessage() {\n if (!this.applyOrchestratorAvailability()) {\n return;\n }\n\n let trimmedPrompt = this.prompt.trim();\n\n if (!trimmedPrompt) {\n return;\n }\n\n // Stop any active recording before sending.\n if (this.isRecording) {\n this.stopRecording();\n }\n\n // Prevent stale ReceiveTranscript events from repopulating the prompt.\n this._audioInputSent = true;\n\n // In single-response mode, clear all previous messages.\n if (this.singleResponseMode) {\n this.messages.splice(0, this.messages.length);\n }\n\n this.addMessage({\n role: 'user',\n content: trimmedPrompt\n });\n\n this.streamMessage(this.getProfileId(), trimmedPrompt, null);\n this.inputElement.value = '';\n this.prompt = '';\n },\n startRecording() {\n if (this.isRecording || !this.connection) {\n return;\n }\n\n navigator.mediaDevices.getUserMedia({ audio: { echoCancellation: true, noiseSuppression: true, autoGainControl: true } })\n .then(stream => {\n var mimeType = MediaRecorder.isTypeSupported('audio/ogg;codecs=opus')\n ? 'audio/ogg;codecs=opus'\n : MediaRecorder.isTypeSupported('audio/webm;codecs=opus')\n ? 'audio/webm;codecs=opus'\n : 'audio/webm';\n\n this.mediaRecorder = new MediaRecorder(stream, {\n mimeType: mimeType,\n audioBitsPerSecond: 128000,\n });\n\n this.preRecordingPrompt = this.prompt;\n this._audioInputSent = false;\n\n var subject = new signalR.Subject();\n var profileId = this.getProfileId();\n var sessionId = this.getSessionId() || '';\n var pendingChunk = Promise.resolve();\n\n this.mediaRecorder.addEventListener('dataavailable', (e) => {\n if (e.data && e.data.size > 0) {\n pendingChunk = pendingChunk.then(async () => {\n var data = await e.data.arrayBuffer();\n var uint8Array = new Uint8Array(data);\n var binaryString = uint8Array.reduce(function (str, byte) { return str + String.fromCharCode(byte); }, '');\n var base64 = btoa(binaryString);\n subject.next(base64);\n });\n }\n });\n\n this.mediaRecorder.addEventListener('stop', () => {\n stream.getTracks().forEach(track => track.stop());\n pendingChunk.then(() => subject.complete());\n });\n\n var language = navigator.language || document.documentElement.lang || 'en-US';\n this.connection.send(\"SendAudioStream\", profileId, sessionId, subject, mimeType, language);\n this.mediaRecorder.start(250);\n this.isRecording = true;\n this.updateMicButton();\n })\n .catch(err => {\n console.error('Microphone access denied:', err);\n });\n },\n stopRecording() {\n if (!this.isRecording || !this.mediaRecorder) {\n return;\n }\n\n this.mediaRecorder.stop();\n this.isRecording = false;\n this.updateMicButton();\n },\n toggleRecording() {\n if (this.isRecording) {\n this.stopRecording();\n } else {\n this.startRecording();\n }\n },\n updateMicButton() {\n if (!this.micButton) {\n return;\n }\n\n if (this.isRecording) {\n this.micButton.classList.add('stt-recording');\n this.micButton.innerHTML = '';\n } else {\n this.micButton.classList.remove('stt-recording');\n this.micButton.innerHTML = '';\n }\n },\n streamMessage(profileId, trimmedPrompt, sessionProfileId) {\n\n if (this.stream) {\n this.stream.dispose();\n this.stream = null;\n }\n\n this.streamingStarted();\n this.showTypingIndicator();\n this.autoScroll = true;\n\n var content = '';\n var references = {};\n var lastResponseId = null;\n\n // Get the index after showing typing indicator.\n var messageIndex = this.messages.length;\n var currentSessionId = this.getSessionId();\n\n this.stream = this.connection.stream(\"SendMessage\", profileId, trimmedPrompt, currentSessionId, sessionProfileId)\n .subscribe({\n next: (chunk) => {\n let message = this.messages[messageIndex];\n\n if (!message) {\n\n if (chunk.sessionId && !currentSessionId) {\n this.initializeSession(chunk.sessionId);\n }\n\n this.hideTypingIndicator();\n // Re-assign the index after hiding the typing indicator.\n messageIndex = this.messages.length;\n let newMessage = {\n id: chunk.messageId,\n role: \"assistant\",\n title: chunk.title,\n content: \"\",\n htmlContent: \"\",\n isStreaming: true,\n userRating: null,\n };\n\n this.messages.push(newMessage);\n\n message = newMessage;\n }\n\n if (chunk.title && (!message.title || message.title !== chunk.title)) {\n message.title = chunk.title;\n }\n\n if (chunk.references && typeof chunk.references === \"object\" && Object.keys(chunk.references).length) {\n\n for (const [key, value] of Object.entries(chunk.references)) {\n references[key] = normalizeReference(value) ?? {};\n }\n }\n\n if (chunk.content) {\n\n // When the responseId changes (e.g., after an internal tool call),\n // insert a line break to visually separate response segments.\n if (chunk.responseId && lastResponseId && chunk.responseId !== lastResponseId) {\n content += '\\n\\n';\n }\n\n if (chunk.responseId) {\n lastResponseId = chunk.responseId;\n }\n\n content += chunk.content;\n }\n\n // Update the existing message\n message.rawContent = content;\n updateMessagePresentation(message, references);\n\n this.messages[messageIndex] = message;\n\n this.$nextTick(() => {\n renderChartsInMessage(message);\n this.scrollToBottom();\n });\n },\n complete: () => {\n this.processReferences(references, messageIndex);\n this.streamingFinished();\n\n let msg = this.messages[messageIndex];\n if (msg) {\n msg.isStreaming = false;\n }\n\n if (!msg || !msg.content) {\n // No content received at all.\n this.hideTypingIndicator();\n }\n\n // Trigger text-to-speech only in conversation mode.\n if (this.isConversationMode && this.textToSpeechEnabled && msg && msg.content) {\n this.synthesizeSpeech(msg.content);\n }\n\n this.stream?.dispose();\n this.stream = null;\n },\n error: (err) => {\n this.processReferences(references, messageIndex);\n this.streamingFinished();\n\n let msg = this.messages[messageIndex];\n if (msg) {\n msg.isStreaming = false;\n }\n\n this.hideTypingIndicator();\n\n if (!this.isNavigatingAway) {\n this.addMessage(this.getServiceDownMessage());\n }\n\n this.stream?.dispose();\n this.stream = null;\n\n console.error(\"Stream error:\", err);\n }\n });\n },\n getServiceDownMessage() {\n let newMessage = {\n role: \"assistant\",\n content: \"Our service is currently unavailable. Please try again later. We apologize for the inconvenience.\",\n htmlContent: \"\",\n };\n\n return newMessage;\n },\n processReferences(references, messageIndex) {\n references = normalizeReferences(references);\n\n if (Object.keys(references).length) {\n\n let message = this.messages[messageIndex];\n message.rawContent = message.rawContent ?? message.content ?? '';\n updateMessagePresentation(message, references);\n\n this.messages[messageIndex] = message;\n\n this.$nextTick(() => {\n renderChartsInMessage(message);\n this.scrollToBottom();\n });\n }\n },\n streamingStarted() {\n var stopIcon = this.buttonElement.getAttribute('data-stop-icon');\n\n if (stopIcon) {\n this.buttonElement.replaceChildren(DOMPurify.sanitize(stopIcon, { RETURN_DOM_FRAGMENT: true }));\n }\n\n if (this.inputElement) {\n this.inputElement.setAttribute('disabled', 'disabled');\n }\n },\n streamingFinished() {\n var startIcon = this.buttonElement.getAttribute('data-start-icon');\n\n if (startIcon) {\n this.buttonElement.replaceChildren(DOMPurify.sanitize(startIcon, { RETURN_DOM_FRAGMENT: true }));\n }\n\n if (this.inputElement) {\n this.inputElement.removeAttribute('disabled');\n this.inputElement.focus();\n }\n\n // Directly manipulate the DOM to stop all streaming animations.\n if (this.chatContainer) {\n var icons = this.chatContainer.querySelectorAll('.ai-streaming-icon');\n for (var i = 0; i < icons.length; i++) {\n icons[i].classList.remove('ai-streaming-icon');\n icons[i].classList.add('ai-bot-icon');\n }\n }\n\n // Also update Vue data for consistency.\n for (var i = 0; i < this.messages.length; i++) {\n if (this.messages[i].isStreaming) {\n this.messages[i].isStreaming = false;\n }\n }\n },\n handleExternalTtsStop(e) {\n if (e?.detail?.sourceId === this.ttsInstanceId) {\n return;\n }\n\n this.stopAudio(false);\n },\n updateTtsPlaybackButtons() {\n if (!this.chatContainer) {\n return;\n }\n\n var buttons = this.chatContainer.querySelectorAll('[data-tts-message-index]');\n\n buttons.forEach(button => {\n var buttonIndex = Number(button.getAttribute('data-tts-message-index'));\n var isPlaying = buttonIndex === this.ttsPlayingMessageIndex;\n\n button.classList.toggle('tts-playing', isPlaying);\n button.setAttribute('title', isPlaying ? 'Pause audio' : 'Read aloud');\n });\n },\n synthesizeSpeech(text, cacheIndex) {\n if (!this.textToSpeechEnabled || !text || !this.connection) {\n return;\n }\n\n this.audioChunks = [];\n this.isPlayingAudio = true;\n this._ttsCacheIndex = cacheIndex !== undefined ? cacheIndex : -1;\n\n this.connection.invoke(\"SynthesizeSpeech\", this.getProfileId(), this.getSessionId(), text, this.ttsVoiceName)\n .catch(err => {\n console.error(\"TTS synthesis error:\", err);\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this._ttsCacheIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n });\n },\n toggleMessageTts(message, index) {\n if (this.ttsPlayingMessageIndex === index) {\n this.stopAudio();\n return;\n }\n\n this.stopAudio(false);\n window.dispatchEvent(new CustomEvent('crestapps-ai-chat-stop-tts', {\n detail: { sourceId: this.ttsInstanceId }\n }));\n this.ttsPlayingMessageIndex = index;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n\n if (this.ttsAudioCache[index]) {\n this.playAudioBlob(this.ttsAudioCache[index]);\n return;\n }\n\n this.synthesizeSpeech(message.content, index);\n },\n playCollectedAudio() {\n if (this.audioChunks.length === 0) {\n if (!this.currentAudioElement && this.audioPlayQueue.length === 0) {\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n }\n return;\n }\n\n const totalLength = this.audioChunks.reduce((sum, chunk) => sum + chunk.length, 0);\n const combined = new Uint8Array(totalLength);\n let offset = 0;\n for (const chunk of this.audioChunks) {\n combined.set(chunk, offset);\n offset += chunk.length;\n }\n this.audioChunks = [];\n\n const blob = new Blob([combined], { type: 'audio/mp3' });\n\n if (this._ttsCacheIndex >= 0) {\n this.ttsAudioCache[this._ttsCacheIndex] = blob;\n this._ttsCacheIndex = -1;\n }\n\n // If audio is already playing, queue this blob for sequential playback.\n if (this.currentAudioElement) {\n this.audioPlayQueue.push(blob);\n return;\n }\n\n this.playAudioBlob(blob);\n },\n playAudioBlob(blob) {\n const url = URL.createObjectURL(blob);\n const audio = new Audio(url);\n\n this.currentAudioUrl = url;\n this.currentAudioElement = audio;\n this.isPlayingAudio = true;\n\n audio.addEventListener('ended', () => {\n this.currentAudioElement = null;\n this.currentAudioUrl = null;\n URL.revokeObjectURL(url);\n this.playNextInQueue();\n });\n\n audio.addEventListener('error', () => {\n this.currentAudioElement = null;\n this.currentAudioUrl = null;\n URL.revokeObjectURL(url);\n this.playNextInQueue();\n });\n\n audio.play().catch(err => {\n console.error(\"Audio playback error:\", err);\n this.currentAudioElement = null;\n this.currentAudioUrl = null;\n URL.revokeObjectURL(url);\n this.audioPlayQueue = [];\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n });\n },\n playNextInQueue() {\n if (this.audioPlayQueue.length > 0) {\n var nextBlob = this.audioPlayQueue.shift();\n this.playAudioBlob(nextBlob);\n } else {\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n this.conversationModeOnAudioEnded();\n }\n },\n stopAudio() {\n if (this.currentAudioElement) {\n this.currentAudioElement.pause();\n this.currentAudioElement.currentTime = 0;\n this.currentAudioElement = null;\n }\n if (this.currentAudioUrl) {\n URL.revokeObjectURL(this.currentAudioUrl);\n this.currentAudioUrl = null;\n }\n this.audioChunks = [];\n this.audioPlayQueue = [];\n this.isPlayingAudio = false;\n this.ttsPlayingMessageIndex = -1;\n this.$nextTick(() => this.updateTtsPlaybackButtons());\n },\n toggleConversationMode() {\n if (this.isConversationMode) {\n this.stopConversationMode();\n } else {\n this.startConversationMode();\n }\n },\n startConversationMode() {\n if (!this.conversationModeEnabled || this.isConversationMode || !this.connection) {\n return;\n }\n\n this.isConversationMode = true;\n this.updateConversationButton();\n this._conversationPartialTranscript = '';\n this._conversationAssistantMessage = null;\n this._conversationPartialMessage = null;\n\n // Remove any previous conversation ended notification.\n this.removeNotification('conversation-ended');\n navigator.mediaDevices.getUserMedia({ audio: { echoCancellation: true, noiseSuppression: true, autoGainControl: true } })\n .then(stream => {\n var mimeType = MediaRecorder.isTypeSupported('audio/ogg;codecs=opus')\n ? 'audio/ogg;codecs=opus'\n : MediaRecorder.isTypeSupported('audio/webm;codecs=opus')\n ? 'audio/webm;codecs=opus'\n : 'audio/webm';\n\n this.mediaRecorder = new MediaRecorder(stream, {\n mimeType: mimeType,\n audioBitsPerSecond: 128000,\n });\n\n this._conversationSubject = new signalR.Subject();\n this._conversationStream = stream;\n\n // Create an AnalyserNode for volume-based interrupt detection.\n // During TTS playback, detect when the user speaks above\n // the threshold to stop TTS (interrupt). Audio chunks are\n // always forwarded — browser echo cancellation handles\n // speaker echo so the STT stream has no gaps.\n var AudioCtx = window.AudioContext || window.webkitAudioContext;\n if (AudioCtx) {\n this._conversationAudioCtx = new AudioCtx();\n this._conversationAnalyser = this._conversationAudioCtx.createAnalyser();\n this._conversationAnalyser.fftSize = 256;\n var micSource = this._conversationAudioCtx.createMediaStreamSource(stream);\n micSource.connect(this._conversationAnalyser);\n }\n\n var pendingChunk = Promise.resolve();\n var analyser = this._conversationAnalyser;\n var interruptVolumeThreshold = 30;\n\n this.mediaRecorder.addEventListener('dataavailable', (e) => {\n if (e.data && e.data.size > 0) {\n // During TTS playback, check mic volume to detect\n // user interruption (speaking above threshold).\n if (this.isPlayingAudio && analyser) {\n var freqData = new Uint8Array(analyser.frequencyBinCount);\n analyser.getByteFrequencyData(freqData);\n var sum = 0;\n for (var k = 0; k < freqData.length; k++) { sum += freqData[k]; }\n var avg = sum / freqData.length;\n\n if (avg >= interruptVolumeThreshold) {\n // User is speaking — interrupt TTS playback.\n this.stopAudio();\n }\n }\n\n // Always send audio to STT — browser echo cancellation\n // handles speaker echo; continuous audio avoids gaps\n // that increase recognition latency.\n pendingChunk = pendingChunk.then(async () => {\n var data = await e.data.arrayBuffer();\n var uint8Array = new Uint8Array(data);\n var binaryString = uint8Array.reduce(function (str, byte) { return str + String.fromCharCode(byte); }, '');\n var base64 = btoa(binaryString);\n try {\n this._conversationSubject.next(base64);\n } catch (err) {\n // Subject may have been completed already.\n }\n });\n }\n });\n\n this.mediaRecorder.addEventListener('stop', () => {\n stream.getTracks().forEach(track => track.stop());\n pendingChunk.then(() => {\n try {\n this._conversationSubject.complete();\n } catch (err) {\n // Already completed.\n }\n });\n });\n\n var profileId = this.getProfileId();\n var sessionId = this.getSessionId() || '';\n var language = navigator.language || document.documentElement.lang || 'en-US';\n\n this.connection.send(\"StartConversation\", profileId, sessionId, this._conversationSubject, mimeType, language);\n this.mediaRecorder.start(250);\n this.isRecording = true;\n })\n .catch(err => {\n console.error('Microphone access denied:', err);\n this.isConversationMode = false;\n this.updateConversationButton();\n });\n },\n stopConversationMode() {\n if (!this.isConversationMode) {\n return;\n }\n\n this.isConversationMode = false;\n this.updateConversationButton();\n\n // Signal the server to cancel all in-progress STT/TTS streams immediately.\n if (this.connection) {\n this.connection.invoke(\"StopConversation\").catch(function () { });\n }\n\n if (this.isRecording && this.mediaRecorder) {\n this.mediaRecorder.stop();\n this.isRecording = false;\n }\n\n this.stopAudio();\n this._conversationPartialTranscript = '';\n this._conversationPartialMessage = null;\n\n // Clean up the AudioContext used for volume monitoring.\n if (this._conversationAudioCtx) {\n this._conversationAudioCtx.close().catch(function () { });\n this._conversationAudioCtx = null;\n this._conversationAnalyser = null;\n }\n\n // Mark any in-flight assistant message as done to stop the spinner.\n if (this._conversationAssistantMessage) {\n var msg = this.messages[this._conversationAssistantMessage.index];\n if (msg) {\n msg.isStreaming = false;\n }\n this._conversationAssistantMessage = null;\n }\n\n // Safety net: clear all lingering streaming indicators.\n for (var i = 0; i < this.messages.length; i++) {\n if (this.messages[i].isStreaming) {\n this.messages[i].isStreaming = false;\n }\n }\n\n // Show a \"conversation ended\" notification system message.\n this.receiveNotification({\n type: 'conversation-ended',\n content: 'Conversation ended.',\n icon: 'fa-solid fa-circle-check',\n dismissible: true,\n autoDismissMs: 5000\n });\n },\n updateConversationButton() {\n if (!this.conversationButton) {\n return;\n }\n\n if (this.isConversationMode) {\n this.conversationButton.classList.add('active', 'btn-primary');\n this.conversationButton.classList.remove('btn-dark', 'btn-outline-dark', 'btn-outline-secondary');\n this.conversationButton.title = this.conversationButton.getAttribute('data-end-title') || 'End Conversation';\n var endHtml = this.conversationButton.getAttribute('data-end-html');\n if (endHtml) {\n this.conversationButton.replaceChildren(DOMPurify.sanitize(endHtml, { RETURN_DOM_FRAGMENT: true }));\n }\n } else {\n this.conversationButton.classList.remove('active', 'btn-primary');\n this.conversationButton.classList.remove('btn-dark', 'btn-outline-secondary');\n this.conversationButton.classList.add('btn-outline-dark');\n this.conversationButton.blur();\n this.conversationButton.title = this.conversationButton.getAttribute('data-start-title') || 'Start Conversation';\n var startHtml = this.conversationButton.getAttribute('data-start-html');\n if (startHtml) {\n this.conversationButton.replaceChildren(DOMPurify.sanitize(startHtml, { RETURN_DOM_FRAGMENT: true }));\n }\n }\n },\n conversationModeSendPrompt() {\n // Legacy: only used by AudioInput mode's ReceiveTranscript.\n },\n conversationModeOnAudioEnded() {\n // Legacy: in conversation mode, audio playback continuation\n // is handled by the persistent stream. This method is only\n // called from playCollectedAudio for non-conversation TTS.\n },\n generatePrompt(element) {\n if (!element) {\n console.error('The element paramter is required.');\n\n return;\n }\n\n let templateProfileId = element.getAttribute('data-profile-id');\n let sessionId = this.getSessionId();\n let sessionProfileId = this.getProfileId();\n\n if (!templateProfileId || !sessionId) {\n\n console.error('The given element is missing data-profile-id or the session has not yet started.');\n return;\n }\n\n // streamMessage() already shows the typing indicator.\n this.streamMessage(templateProfileId, null, sessionProfileId);\n },\n createSessionUrl(baseUrl, param, value) {\n\n const fullUrl = baseUrl.toLowerCase().startsWith('http') ? baseUrl : window.location.origin + baseUrl;\n const url = new URL(fullUrl);\n\n url.searchParams.set(param, value);\n\n return url.toString();\n },\n showTypingIndicator() {\n this.addMessage({\n role: 'indicator',\n htmlContent: config.indicatorTemplate\n });\n },\n hideTypingIndicator() {\n const originalLength = this.messages.length;\n this.messages = this.messages.filter(msg => msg.role !== 'indicator');\n const removedCount = originalLength - this.messages.length;\n return removedCount;\n },\n receiveNotification(notification) {\n if (!notification || !notification.type) {\n return;\n }\n this.clearNotificationDismiss(notification.type);\n var existingIndex = this.notifications.findIndex(n => n.type === notification.type);\n if (existingIndex >= 0) {\n this.notifications.splice(existingIndex, 1, notification);\n } else {\n this.notifications.push(notification);\n }\n this.scheduleNotificationDismiss(notification);\n this.$nextTick(() => {\n this.scrollToBottom();\n });\n },\n updateNotification(notification) {\n if (!notification || !notification.type) {\n return;\n }\n this.clearNotificationDismiss(notification.type);\n var existingIndex = this.notifications.findIndex(n => n.type === notification.type);\n if (existingIndex >= 0) {\n this.notifications.splice(existingIndex, 1, notification);\n this.scheduleNotificationDismiss(notification);\n }\n },\n scheduleNotificationDismiss(notification) {\n if (!notification || !notification.type || !notification.autoDismissMs || notification.autoDismissMs <= 0) {\n return;\n }\n this.notificationDismissTimers[notification.type] = setTimeout(() => {\n this.removeNotification(notification.type);\n }, notification.autoDismissMs);\n },\n clearNotificationDismiss(notificationType) {\n var timerId = this.notificationDismissTimers[notificationType];\n if (!timerId) {\n return;\n }\n clearTimeout(timerId);\n delete this.notificationDismissTimers[notificationType];\n },\n removeNotification(notificationType) {\n this.clearNotificationDismiss(notificationType);\n this.notifications = this.notifications.filter(n => n.type !== notificationType);\n },\n dismissNotification(notificationType) {\n this.removeNotification(notificationType);\n },\n handleNotificationAction(notificationType, actionName) {\n if (!this.connection) {\n return;\n }\n var sessionId = this.getSessionId();\n this.connection.invoke(\"HandleNotificationAction\", sessionId, notificationType, actionName).catch(function (err) {\n console.error(\"Error handling notification action:\", err);\n });\n },\n scrollToBottom() {\n if (!this.autoScroll) {\n return;\n }\n setTimeout(() => {\n this.chatContainer.scrollTop = this.chatContainer.scrollHeight - this.chatContainer.clientHeight;\n }, 50);\n },\n handleUserInput(event) {\n this.prompt = event.target.value;\n },\n getProfileId() {\n return this.inputElement\n ? this.inputElement.getAttribute('data-profile-id')\n : null;\n },\n setSessionId(sessionId) {\n if (!this.inputElement) {\n return;\n }\n\n this.inputElement.setAttribute('data-session-id', sessionId || '');\n },\n resetSession() {\n this.stopRecording();\n this.rejectPendingSessionRequest('Session was reset.');\n this.setSessionId('');\n this.isSessionStarted = false;\n this.sessionRating = null;\n this.messages = [];\n this.documents = [];\n if (!config.autoCreateSession) {\n this.showPlaceholder();\n }\n\n if (config.autoCreateSession) {\n this.startNewSession();\n }\n\n if (widgetBehavior && typeof widgetBehavior.onSessionReset === 'function') {\n widgetBehavior.onSessionReset(this, config);\n }\n },\n startNewSession() {\n if (!this.applyOrchestratorAvailability()) {\n return;\n }\n\n const profileId = this.getProfileId();\n if (!profileId || !this.connection) {\n return;\n }\n\n this.requestNewSession(profileId).catch(err => console.error(err));\n },\n async ensureSessionForDocuments(profileId) {\n var sessionId = this.getSessionId();\n if (sessionId) {\n return sessionId;\n }\n\n if (!profileId || !this.connection) {\n return null;\n }\n\n return await this.requestNewSession(profileId);\n },\n requestNewSession(profileId) {\n if (this.pendingSessionPromise) {\n return this.pendingSessionPromise;\n }\n\n if (!profileId || !this.connection) {\n return Promise.resolve(null);\n }\n\n this.pendingSessionPromise = new Promise((resolve, reject) => {\n this.pendingSessionResolver = resolve;\n this.pendingSessionRejector = reject;\n this.pendingSessionTimeoutId = window.setTimeout(() => {\n this.rejectPendingSessionRequest('Timed out while creating a chat session.');\n }, 15000);\n });\n\n this.connection.invoke(\"StartSession\", profileId, null).catch(err => {\n this.rejectPendingSessionRequest(err);\n });\n\n return this.pendingSessionPromise;\n },\n resolvePendingSessionRequest(sessionId) {\n if (this.pendingSessionResolver) {\n this.pendingSessionResolver(sessionId);\n }\n\n this.clearPendingSessionRequest();\n },\n rejectPendingSessionRequest(error) {\n if (this.pendingSessionRejector) {\n this.pendingSessionRejector(error);\n }\n\n this.clearPendingSessionRequest();\n },\n clearPendingSessionRequest() {\n if (this.pendingSessionTimeoutId) {\n window.clearTimeout(this.pendingSessionTimeoutId);\n }\n\n this.pendingSessionPromise = null;\n this.pendingSessionResolver = null;\n this.pendingSessionRejector = null;\n this.pendingSessionTimeoutId = null;\n },\n initializeApp() {\n this.inputElement = document.querySelector(config.inputElementSelector);\n this.buttonElement = document.querySelector(config.sendButtonElementSelector);\n this.chatContainer = document.querySelector(config.chatContainerElementSelector);\n this.placeholder = document.querySelector(config.placeholderElementSelector);\n\n if (!this.inputElement || !this.buttonElement || !this.chatContainer || !this.placeholder) {\n console.error('AI chat app could not initialize because one or more required elements were not found.', {\n inputElementSelector: config.inputElementSelector,\n sendButtonElementSelector: config.sendButtonElementSelector,\n chatContainerElementSelector: config.chatContainerElementSelector,\n placeholderElementSelector: config.placeholderElementSelector\n });\n\n return false;\n }\n\n this.applyOrchestratorAvailability();\n\n const sessionId = this.getSessionId();\n if (!hasWidgetConfig && sessionId) {\n this.loadSession(sessionId);\n } else if (this.isOrchestratorAvailable() && config.autoCreateSession && !hasWidgetConfig && !sessionId) {\n this.startNewSession();\n }\n\n // Initialize document bar if enabled.\n if (config.sessionDocumentsEnabled && config.documentBarSelector) {\n this.documentBar = document.querySelector(config.documentBarSelector);\n if (this.documentBar) {\n this.renderDocumentBar();\n\n // Create hidden file input for document uploads.\n var fileInput = document.createElement('input');\n fileInput.type = 'file';\n fileInput.id = 'ai-chat-doc-input';\n fileInput.className = 'd-none';\n fileInput.multiple = true;\n if (config.allowedExtensions) {\n fileInput.accept = config.allowedExtensions;\n }\n fileInput.addEventListener('change', (e) => this.handleFileInputChange(e));\n this.documentBar.parentElement.appendChild(fileInput);\n\n // Set up drag-and-drop on the input area.\n var inputArea = this.inputElement ? this.inputElement.closest('.ai-admin-widget-input, .text-bg-light') : null;\n if (inputArea) {\n inputArea.addEventListener('dragover', (e) => this.handleDragOver(e));\n inputArea.addEventListener('dragleave', (e) => this.handleDragLeave(e));\n inputArea.addEventListener('drop', (e) => this.handleDrop(e));\n }\n }\n }\n\n // Pause auto-scroll when the user manually scrolls up during streaming.\n this.chatContainer.addEventListener('scroll', () => {\n if (!this.stream) {\n return;\n }\n const threshold = 30;\n const atBottom = this.chatContainer.scrollHeight - this.chatContainer.clientHeight - this.chatContainer.scrollTop <= threshold;\n this.autoScroll = atBottom;\n });\n\n this.inputElement.addEventListener('keydown', event => {\n\n if (this.stream != null) {\n return;\n }\n\n if (event.key === \"Enter\" && !event.shiftKey) {\n event.preventDefault();\n this.buttonElement.click();\n }\n });\n\n this.inputElement.addEventListener('input', (e) => {\n this.handleUserInput(e);\n\n if (e.target.value.trim()) {\n this.buttonElement.removeAttribute('disabled');\n } else {\n this.buttonElement.setAttribute('disabled', true);\n }\n });\n\n this.buttonElement.addEventListener('click', () => {\n\n if (this.stream != null) {\n this.stream.dispose();\n this.stream = null;\n\n this.streamingFinished();\n this.hideTypingIndicator();\n\n // Clean up: remove empty assistant message or stop streaming animation.\n if (this.messages.length > 0) {\n const lastMsg = this.messages[this.messages.length - 1];\n if (lastMsg.role === 'assistant' && !lastMsg.content) {\n this.messages.pop();\n } else if (lastMsg.isStreaming) {\n lastMsg.isStreaming = false;\n }\n }\n\n return;\n }\n\n this.sendMessage();\n });\n\n const promptGenerators = document.getElementsByClassName('profile-generated-prompt');\n\n for (var i = 0; i < promptGenerators.length; i++) {\n promptGenerators[i].addEventListener('click', (e) => {\n e.preventDefault();\n this.generatePrompt(e.target);\n });\n }\n\n const chatSessions = document.getElementsByClassName('chat-session-history-item');\n\n for (var i = 0; i < chatSessions.length; i++) {\n chatSessions[i].addEventListener('click', (e) => {\n e.preventDefault();\n\n var sessionId = e.target.getAttribute('data-session-id');\n\n if (!sessionId) {\n console.error('an element with the class chat-session-history-item with no data-session-id set.');\n\n return;\n }\n\n this.loadSession(sessionId);\n this.showChatScreen();\n });\n }\n\n for (let i = 0; i < config.messages.length; i++) {\n this.addMessage(config.messages[i]);\n }\n\n // Update feedback icons in the DOM after initial messages have rendered.\n this.$nextTick(() => {\n this.refreshAllFeedbackIcons();\n });\n\n // Delegate click for code block copy buttons.\n if (this.chatContainer) {\n this.chatContainer.addEventListener('click', (e) => {\n var btn = e.target.closest('.ai-code-copy-btn');\n if (!btn) {\n return;\n }\n\n var block = btn.closest('.ai-code-block') || btn.closest('pre');\n if (!block) {\n return;\n }\n\n var codeEl = block.querySelector('code');\n if (codeEl) {\n navigator.clipboard.writeText(codeEl.textContent);\n var copiedText = config.codeCopiedText || 'Copied!';\n btn.innerHTML = ' ' + copiedText;\n setTimeout(() => {\n btn.innerHTML = '';\n }, 2000);\n }\n });\n }\n\n // Initialize speech-to-text microphone button.\n if (this.speechToTextEnabled && config.micButtonElementSelector) {\n this.micButton = document.querySelector(config.micButtonElementSelector);\n if (this.micButton) {\n this.micButton.style.display = '';\n this.micButton.addEventListener('click', () => {\n this.toggleRecording();\n });\n }\n }\n\n // Initialize conversation mode button.\n if (this.conversationModeEnabled && config.conversationButtonElementSelector) {\n this.conversationButton = document.querySelector(config.conversationButtonElementSelector);\n if (this.conversationButton) {\n this.conversationButton.addEventListener('click', () => {\n this.toggleConversationMode();\n });\n }\n }\n\n return true;\n },\n loadSession(sessionId) {\n this.connection.invoke(\"LoadSession\", sessionId).catch(err => console.error(err));\n },\n reloadCurrentSession() {\n\n var sessionId = this.getSessionId();\n if (sessionId) {\n this.loadSession(sessionId);\n }\n },\n initializeSession(sessionId, force) {\n if (this.isSessionStarted && !force) {\n if (sessionId && this.getSessionId() === sessionId) {\n this.resolvePendingSessionRequest(sessionId);\n }\n\n return\n }\n this.fireEvent(new CustomEvent(\"initializingSessionOpenAIChat\", { detail: { sessionId: sessionId } }))\n this.setSessionId(sessionId);\n this.isSessionStarted = true;\n this.resolvePendingSessionRequest(sessionId);\n\n if (widgetBehavior && typeof widgetBehavior.onSessionInitialized === 'function') {\n widgetBehavior.onSessionInitialized(this, sessionId, config);\n }\n },\n getSessionId() {\n let sessionId = this.inputElement\n ? this.inputElement.getAttribute('data-session-id')\n : null;\n\n if (!sessionId && widgetBehavior && typeof widgetBehavior.resolveSessionId === 'function') {\n sessionId = widgetBehavior.resolveSessionId(this, config);\n }\n\n return sessionId;\n },\n copyResponse(message) {\n const text = message && typeof message === 'object'\n ? message.copyContent ?? message.content ?? ''\n : message ?? '';\n\n navigator.clipboard.writeText(text);\n },\n updateFeedbackIcons(container, userRating) {\n if (!container) {\n return;\n }\n\n var upBtn = container.querySelector('.rate-up-btn');\n var downBtn = container.querySelector('.rate-down-btn');\n\n // Keep feedback icons as simple span-based Font Awesome markup so\n // later state updates do not depend on i2svg replacement.\n if (upBtn) {\n var upClass = userRating === true ? 'fa-solid fa-thumbs-up' : 'fa-regular fa-thumbs-up';\n var upIcon = document.createElement('span');\n upIcon.className = upClass;\n upIcon.style.fontSize = '0.9rem';\n upBtn.textContent = '';\n upBtn.appendChild(upIcon);\n }\n\n if (downBtn) {\n var downClass = userRating === false ? 'fa-solid fa-thumbs-down' : 'fa-regular fa-thumbs-down';\n var downIcon = document.createElement('span');\n downIcon.className = downClass;\n downIcon.style.fontSize = '0.9rem';\n downBtn.textContent = '';\n downBtn.appendChild(downIcon);\n }\n },\n refreshAllFeedbackIcons() {\n var containers = this.$el.querySelectorAll('.ai-chat-message-assistant-feedback');\n\n for (var i = 0; i < containers.length; i++) {\n var msgId = containers[i].getAttribute('data-message-id');\n var msg = this.messages.find(m => m.id === msgId);\n\n if (msg) {\n this.updateFeedbackIcons(containers[i], msg.userRating);\n }\n }\n },\n rateMessage(message, isPositive, event) {\n var sessionId = this.getSessionId();\n\n if (!sessionId || !message.id || !this.connection) {\n return;\n }\n\n // Toggle: clicking the same rating again clears it.\n var newRating = message.userRating === isPositive ? null : isPositive;\n message.userRating = newRating;\n\n // Find the feedback container by message ID for reliable DOM targeting.\n var feedbackContainer = this.$el.querySelector(\n '.ai-chat-message-assistant-feedback[data-message-id=\"' + message.id + '\"]'\n );\n\n this.updateFeedbackIcons(feedbackContainer, newRating);\n\n // Trigger spark animation after Font Awesome has re-processed icons.\n if (newRating !== null && feedbackContainer) {\n setTimeout(() => {\n var btnClass = isPositive ? '.rate-up-btn' : '.rate-down-btn';\n var btn = feedbackContainer.querySelector(btnClass);\n\n if (btn) {\n btn.classList.remove('spark-effect');\n void btn.offsetWidth;\n btn.classList.add('spark-effect');\n btn.addEventListener('animationend', function onEnd() {\n btn.removeEventListener('animationend', onEnd);\n btn.classList.remove('spark-effect');\n });\n }\n }, 50);\n }\n\n this.connection.invoke(\"RateMessage\", sessionId, message.id, isPositive).catch(function (err) {\n console.error('Failed to rate message:', err);\n });\n }\n },\n watch: {\n documents: {\n handler() {\n this.renderDocumentBar();\n if (widgetBehavior && typeof widgetBehavior.onDocumentsChanged === 'function') {\n widgetBehavior.onDocumentsChanged(this, this.documents, config);\n }\n },\n deep: true\n },\n isUploading() { this.renderDocumentBar(); },\n isDocumentOperationPending() { this.renderDocumentBar(); },\n isPlayingAudio() {\n // Reserved for future use — volume-based interrupt detection\n // no longer mutes tracks; browser echo cancellation handles echo.\n },\n isConversationMode(active) {\n // Hide/show mic button.\n if (this.micButton) {\n this.micButton.style.display = active ? 'none' : (this.speechToTextEnabled ? '' : 'none');\n }\n\n // Hide/show send button.\n if (this.buttonElement) {\n this.buttonElement.style.display = active ? 'none' : '';\n }\n\n // Disable/enable textarea.\n if (this.inputElement) {\n this.inputElement.disabled = active;\n if (active) {\n this.inputElement.placeholder = '';\n }\n }\n }\n },\n mounted() {\n (async () => {\n await this.startConnection();\n const isInitialized = this.initializeApp();\n if (isInitialized && hasWidgetConfig && widgetBehavior && typeof widgetBehavior.onMounted === 'function') {\n widgetBehavior.onMounted(this, config);\n }\n\n this.$nextTick(() => {\n refreshFontAwesomeIcons(this.$el);\n this.fontAwesomeObserver = observeFontAwesomeIcons(this.$el);\n });\n })();\n\n window.addEventListener('beforeunload', this.handleBeforeUnload);\n window.addEventListener('crestapps-ai-chat-stop-tts', this.handleExternalTtsStop);\n },\n beforeUnmount() {\n window.removeEventListener('beforeunload', this.handleBeforeUnload);\n window.removeEventListener('crestapps-ai-chat-stop-tts', this.handleExternalTtsStop);\n\n if (this.fontAwesomeObserver) {\n this.fontAwesomeObserver.disconnect();\n this.fontAwesomeObserver = null;\n }\n\n this.stopAudio(false);\n\n if (this.stream) {\n this.stream.dispose();\n this.stream = null;\n }\n if (this.connection) {\n this.connection.stop();\n }\n\n if (widgetBehavior && typeof widgetBehavior.onBeforeUnmount === 'function') {\n widgetBehavior.onBeforeUnmount(this, config);\n }\n },\n template: config.messageTemplate\n };\n\n const app = Vue.createApp(appDefinition).mount(config.appElementSelector);\n\n if (widgetBehavior && typeof widgetBehavior.attach === 'function') {\n widgetBehavior.attach(app, config);\n }\n\n return app;\n };\n\n return {\n initialize: initialize\n };\n}();\n\n// Download chart as image via event delegation (DOMPurify strips inline onclick).\ndocument.addEventListener('click', function (e) {\n const btn = e.target.closest('.download-chart-btn');\n if (!btn) {\n return;\n }\n const chartId = btn.getAttribute('data-chart-id');\n const canvas = chartId ? document.getElementById(chartId) : null;\n if (!canvas) {\n console.error('Chart canvas not found:', chartId);\n return;\n }\n const link = document.createElement('a');\n link.download = 'chart-' + chartId + '.png';\n link.href = canvas.toDataURL('image/png');\n link.click();\n});\n\n// Intercept download clicks for data-URI images and convert to blob downloads.\ndocument.addEventListener('click', function (e) {\n const link = e.target.closest('.ai-download-image');\n if (!link) {\n return;\n }\n\n const container = link.closest('.generated-image-container');\n const img = container?.querySelector('img');\n if (!img) {\n return;\n }\n\n const src = img.src;\n if (!src || !src.startsWith('data:')) {\n return; // Normal URL – let the default behaviour handle it.\n }\n\n e.preventDefault();\n\n fetch(src)\n .then(function (res) { return res.blob(); })\n .then(function (blob) {\n const url = URL.createObjectURL(blob);\n const a = document.createElement('a');\n a.href = url;\n a.download = link.getAttribute('download') || 'generated-image.png';\n document.body.appendChild(a);\n a.click();\n document.body.removeChild(a);\n setTimeout(function () { URL.revokeObjectURL(url); }, 100);\n })\n .catch(function (err) { console.error('Failed to download image:', err); });\n});\n"]}