disable persisting states on wasm for now

buildSrc/src/main/kotlin/Config.kt

@@ -18,7 +18,7 @@ object Config {
     const val majorRelease = 2
     const val minorRelease = 5
     const val patch = 0
-    const val postfix = "-alpha06" // include dash (-)
+    const val postfix = "-alpha07" // include dash (-)
     const val majorVersionName = "$majorRelease.$minorRelease.$patch"
     const val versionName = "$majorVersionName$postfix"
     const val url = "https://github.com/respawn-app/FlowMVI"

sample/build.gradle.kts

@@ -30,6 +30,7 @@ kotlin {
         nodejs()
         browser()
         binaries.library()
+        applyBinaryen()
     }
     jvm("desktop")
 
@@ -45,6 +46,7 @@ kotlin {
 
     sourceSets {
         val desktopMain by getting
+        val wasmJsMain by getting
 
         configurations.all {
             exclude(group = "org.jetbrains.kotlinx", module = "kotlinx-coroutines-android")
@@ -97,6 +99,9 @@ kotlin {
         androidMain.dependencies {
             implementation(applibs.koin.android)
         }
+        wasmJsMain.dependencies {
+            implementation(applibs.okio.fakefsys)
+        }
     } // sets
 }
 android {

sample/libs.versions.toml

@@ -5,6 +5,7 @@ koin = "3.6.0-wasm-alpha2"
 kmputils = "1.3.2"
 material = "1.12.0-rc01"
 activity = "1.9.0-rc01"
+okio = "3.9.0"
 splashscreen = "1.1.0-rc01"
 #codehighlights = "0.8.0"
 
@@ -21,6 +22,7 @@ koin-android = { module = "io.insert-koin:koin-android", version.ref = "koin" }
 koin-android-compose = { module = "io.insert-koin:koin-androidx-compose", version.ref = "koin" }
 koin-compose = { module = "io.insert-koin:koin-compose", version.ref = "koin" }
 koin-core = { module = "io.insert-koin:koin-core", version.ref = "koin" }
+okio-fakefsys = { module = "com.squareup.okio:okio-fakefilesystem", version.ref = "okio" }
 koin-test = { module = "io.insert-koin:koin-test", version.ref = "koin" }
 apiresult = { module = "pro.respawn.apiresult:core", version.ref = "apiresult" }
 compose-activity = { module = "androidx.activity:activity-compose", version.ref = "activity" }

sample/src/commonMain/kotlin/pro/respawn/flowmvi/sample/arch/configuration/DefaultStoreConfiguration.kt

@@ -17,6 +17,7 @@ import pro.respawn.flowmvi.savedstate.api.NullRecover
 import pro.respawn.flowmvi.savedstate.api.Saver
 import pro.respawn.flowmvi.savedstate.dsl.CompressedFileSaver
 import pro.respawn.flowmvi.savedstate.dsl.JsonSaver
+import pro.respawn.flowmvi.savedstate.dsl.NoOpSaver
 import pro.respawn.flowmvi.savedstate.plugins.saveStatePlugin
 
 internal class DefaultStoreConfiguration(
@@ -29,11 +30,13 @@ internal class DefaultStoreConfiguration(
     override fun <S : MVIState> saver(
         serializer: KSerializer<S>,
         fileName: String,
-    ): Saver<S> = CompressedFileSaver(
-        dir = cacheDir,
-        fileName = "$fileName.gz",
-        recover = NullRecover
-    ).let { JsonSaver(json, serializer, it) }
+    ): Saver<S> {
+        return CompressedFileSaver(
+            dir = cacheDir ?: return NoOpSaver(),
+            fileName = "$fileName.gz",
+            recover = NullRecover
+        ).let { JsonSaver(json, serializer, it) }
+    }
 
     override operator fun <S : MVIState, I : MVIIntent, A : MVIAction> StoreBuilder<S, I, A>.invoke(
         name: String,

sample/src/commonMain/kotlin/pro/respawn/flowmvi/sample/features/savedstate/SavedStateContainer.kt

@@ -28,7 +28,7 @@ internal class SavedStateContainer(
         // can also be injected, defined here for illustration purposes
         // see "StoreConfiguration" for injection setup
         serializeState(
-            dir = fileManager.cacheDir("state"),
+            dir = fileManager.cacheDir("state") ?: "",
             json = json,
             serializer = DisplayingInput.serializer(),
             recover = NullRecover,

sample/src/commonMain/kotlin/pro/respawn/flowmvi/sample/features/savedstate/SavedStateScreen.kt

@@ -9,6 +9,7 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
@@ -20,6 +21,7 @@ import org.jetbrains.compose.resources.stringResource
 import pro.respawn.flowmvi.api.IntentReceiver
 import pro.respawn.flowmvi.compose.dsl.requireLifecycle
 import pro.respawn.flowmvi.compose.dsl.subscribe
+import pro.respawn.flowmvi.sample.BuildFlags
 import pro.respawn.flowmvi.sample.arch.di.container
 import pro.respawn.flowmvi.sample.features.savedstate.SavedStateFeatureState.DisplayingInput
 import pro.respawn.flowmvi.sample.features.savedstate.SavedStateIntent.ChangedInput
@@ -31,6 +33,8 @@ import pro.respawn.flowmvi.sample.ui.widgets.CodeText
 import pro.respawn.flowmvi.sample.ui.widgets.RScaffold
 import pro.respawn.flowmvi.sample.ui.widgets.RTextInput
 import pro.respawn.flowmvi.sample.ui.widgets.TypeCrossfade
+import pro.respawn.flowmvi.sample.util.Platform
+import pro.respawn.flowmvi.sample.util.platform
 
 private const val Description = """
     Saved state plugin allows you to persist a state of a store into a file or other place in about 5 lines of code
@@ -96,6 +100,13 @@ private fun IntentReceiver<SavedStateIntent>.SavedStateScreenContent(
         ) {
             Text(Description.trimIndent())
             Spacer(Modifier.height(24.dp))
+            if (BuildFlags.platform == Platform.Web) {
+                Text(
+                    "You are on web, where persisting files to file system is not supported, " +
+                            "so the data will not be saved",
+                    color = MaterialTheme.colorScheme.error,
+                )
+            }
             RTextInput(
                 input = input,
                 onTextChange = { intent(ChangedInput(it)) },

sample/src/commonMain/kotlin/pro/respawn/flowmvi/sample/platform/FileManager.kt

@@ -1,5 +1,5 @@
 package pro.respawn.flowmvi.sample.platform
 
 interface FileManager {
-    fun cacheDir(relative: String): String
+    fun cacheDir(relative: String): String?
 }

sample/src/wasmJsMain/kotlin/pro/respawn/flowmvi/sample/platform/BrowserFileManager.kt

@@ -1,9 +1,6 @@
 package pro.respawn.flowmvi.sample.platform
 
-import kotlinx.io.files.Path
-import kotlinx.io.files.SystemFileSystem
-
 internal class BrowserFileManager : FileManager {
 
-    override fun cacheDir(relative: String): String = SystemFileSystem.resolve(Path(relative)).name
+    override fun cacheDir(relative: String): String? = null
 }