-
Notifications
You must be signed in to change notification settings - Fork 3
/
sessions.go
151 lines (128 loc) · 3.11 KB
/
sessions.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
package main
import (
"fmt"
"log"
"sync"
"time"
ai "github.com/sashabaranov/go-openai"
vip "github.com/spf13/viper"
)
var sessions = Chats{
sessionMap: make(map[string]*ChatSession),
mu: sync.RWMutex{},
}
type Chats struct {
sessionMap map[string]*ChatSession
mu sync.RWMutex
}
type SessionConfig struct {
MaxTokens int
SessionTimeout time.Duration
MaxHistory int
ClientTimeout time.Duration
Chunkdelay time.Duration
Chunkmax int
}
type ChatSession struct {
Config SessionConfig
Name string
History []ai.ChatCompletionMessage
mu sync.RWMutex
Last time.Time
Totalchars int
}
func (s *ChatSession) GetHistory() []ai.ChatCompletionMessage {
s.mu.RLock()
defer s.mu.RUnlock()
historyCopy := make([]ai.ChatCompletionMessage, len(s.History))
copy(historyCopy, s.History)
return historyCopy
}
func (s *ChatSession) Message(ctx *ChatContext, role string, message string) *ChatSession {
s.mu.Lock()
defer s.mu.Unlock()
if len(s.History) == 0 {
s.History = append(s.History, ai.ChatCompletionMessage{Role: ai.ChatMessageRoleSystem, Content: ctx.Personality.Prompt})
s.Totalchars += len(ctx.Personality.Prompt)
}
s.History = append(s.History, ai.ChatCompletionMessage{Role: role, Content: message})
s.Totalchars += len(message)
s.Last = time.Now()
s.trim()
return s
}
// contining the no alloc tradition to mock python users
func (s *ChatSession) trim() {
if len(s.History) > s.Config.MaxHistory {
rm := len(s.History) - s.Config.MaxHistory
for i := 1; i <= s.Config.MaxHistory; i++ {
s.History[i] = s.History[i+rm-1]
}
s.History = s.History[:s.Config.MaxHistory+1]
}
}
func (s *ChatSession) Reset() {
s.mu.Lock()
defer s.mu.Unlock()
s.History = s.History[:0]
s.Last = time.Now()
}
func (s *ChatSession) Reap() bool {
now := time.Now()
sessions.mu.Lock()
defer sessions.mu.Unlock()
if sessions.sessionMap[s.Name] == nil {
return true
}
if now.Sub(s.Last) > s.Config.SessionTimeout {
delete(sessions.sessionMap, s.Name)
return true
}
return false
}
func (chats *Chats) Get(id string) *ChatSession {
chats.mu.Lock()
defer chats.mu.Unlock()
if v, ok := chats.sessionMap[id]; ok {
return v
}
session := &ChatSession{
Name: id,
Last: time.Now(),
Config: SessionConfig{
MaxTokens: vip.GetInt("maxtokens"),
SessionTimeout: vip.GetDuration("session"),
MaxHistory: vip.GetInt("history"),
ClientTimeout: vip.GetDuration("timeout"),
Chunkdelay: vip.GetDuration("chunkdelay"),
Chunkmax: vip.GetInt("chunkmax"),
},
}
// start session reaper, returns when the session is gone
go func() {
for {
time.Sleep(session.Config.SessionTimeout)
if session.Reap() {
log.Println("session reaped:", session.Name)
return
}
}
}()
chats.sessionMap[id] = session
return session
}
// show string of all msg contents
func (s *ChatSession) Debug() {
s.mu.RLock()
defer s.mu.RUnlock()
for _, msg := range s.History {
ds := ""
if msg.Role == ai.ChatMessageRoleAssistant {
ds += "< "
} else {
ds += "> "
}
ds += fmt.Sprintf("%s:%s", msg.Role, msg.Content)
log.Println(ds)
}
}