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Gitea Actions Demo / Explore-Gitea-Actions (push) Successful in 52s
726 lines
21 KiB
Go
726 lines
21 KiB
Go
package service
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import (
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"bufio"
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"bytes"
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"encoding/base64"
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"encoding/binary"
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"encoding/json"
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"fmt"
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"io"
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"math"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"time"
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"unicode/utf8"
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)
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// Config holds the configuration for the LLM service
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type Config struct {
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LLMApiURL string
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LLMApiKey string
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MiniMaxApiKey string
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MiniMaxApiURL string
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FILE_URL string
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}
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// LLMService handles communication with the LLM API
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type LLMService struct {
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config Config
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client *http.Client
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}
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// Message represents a single message in the conversation
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type Message struct {
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Answer string `json:"answer"`
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IsEnd bool `json:"isEnd"`
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ConversationID string `json:"conversation_id"`
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TaskID string `json:"task_id"`
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ClientID string `json:"client_id,omitempty"`
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AudioData string `json:"audio_data,omitempty"`
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}
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// RequestPayload represents the payload sent to the LLM API
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type RequestPayload struct {
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Inputs map[string]interface{} `json:"inputs"`
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Query string `json:"query"`
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ResponseMode string `json:"response_mode"`
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User string `json:"user"`
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ConversationID string `json:"conversation_id"`
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Files []interface{} `json:"files"`
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Audio string `json:"audio"`
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}
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// VoiceSetting represents voice configuration
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type VoiceSetting struct {
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VoiceID string `json:"voice_id"`
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Speed float64 `json:"speed"`
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Vol float64 `json:"vol"`
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Pitch float64 `json:"pitch"`
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Emotion string `json:"emotion"`
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}
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// AudioSetting represents audio configuration
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type AudioSetting struct {
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SampleRate int `json:"sample_rate"`
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Bitrate int `json:"bitrate"`
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Format string `json:"format"`
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}
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// SpeechRequest represents the speech synthesis request payload
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type SpeechRequest struct {
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Model string `json:"model"`
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Text string `json:"text"`
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Stream bool `json:"stream"`
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LanguageBoost string `json:"language_boost"`
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OutputFormat string `json:"output_format"`
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VoiceSetting VoiceSetting `json:"voice_setting"`
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AudioSetting AudioSetting `json:"audio_setting"`
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}
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// SpeechData represents the speech data in the response
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type SpeechData struct {
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Audio string `json:"audio"`
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Status int `json:"status"`
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}
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// ExtraInfo represents additional information about the speech
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type ExtraInfo struct {
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AudioLength int `json:"audio_length"`
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AudioSampleRate int `json:"audio_sample_rate"`
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AudioSize int `json:"audio_size"`
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AudioBitrate int `json:"audio_bitrate"`
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WordCount int `json:"word_count"`
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InvisibleCharacterRatio float64 `json:"invisible_character_ratio"`
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AudioFormat string `json:"audio_format"`
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UsageCharacters int `json:"usage_characters"`
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}
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// BaseResponse represents the base response structure
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type BaseResponse struct {
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StatusCode int `json:"status_code"`
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StatusMsg string `json:"status_msg"`
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}
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// SpeechResponse represents the speech synthesis response
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type SpeechResponse struct {
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Data SpeechData `json:"data"`
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ExtraInfo ExtraInfo `json:"extra_info"`
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TraceID string `json:"trace_id"`
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BaseResp BaseResponse `json:"base_resp"`
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}
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// NewLLMService creates a new instance of LLMService
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func NewLLMService(config Config) *LLMService {
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return &LLMService{
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config: config,
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client: &http.Client{},
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}
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}
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// CallLLMAPI handles both streaming and non-streaming API calls
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func (s *LLMService) CallLLMAPI(data map[string]interface{}) (interface{}, error) {
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payload := RequestPayload{
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Inputs: make(map[string]interface{}),
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Query: getString(data, "query"),
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ResponseMode: getString(data, "response_mode"),
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User: getString(data, "user"),
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ConversationID: getString(data, "conversation_id"),
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Files: make([]interface{}, 0),
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Audio: getString(data, "audio"),
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}
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fmt.Printf("前端传来的数据：%+v\n", payload)
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jsonData, err := json.Marshal(payload)
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if err != nil {
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return nil, fmt.Errorf("error marshaling payload: %v", err)
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}
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fmt.Println(s.config.LLMApiURL + "/chat-messages")
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req, err := http.NewRequest("POST", s.config.LLMApiURL+"/chat-messages", bytes.NewBuffer(jsonData))
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// req, err := http.NewRequest("GET", "http://localhost:8080/stream-text", nil)
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if err != nil {
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return nil, fmt.Errorf("error creating request: %v", err)
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}
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req.Header.Set("Authorization", "Bearer "+s.config.LLMApiKey)
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req.Header.Set("Content-Type", "application/json")
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isStreaming := payload.ResponseMode == "streaming"
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if isStreaming {
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return s.handleStreamingResponse(req, data, payload.Audio)
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}
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return s.handleNonStreamingResponse(req)
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}
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// handleStreamingResponse processes streaming responses
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func (s *LLMService) handleStreamingResponse(req *http.Request, data map[string]interface{}, audio_type string) (chan Message, error) {
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resp, err := s.client.Do(req)
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if err != nil {
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return nil, fmt.Errorf("error making request: %v", err)
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}
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
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}
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messageChan := make(chan Message, 100) // Buffered channel for better performance
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initialSessage := ""
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go func() {
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defer resp.Body.Close()
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defer close(messageChan)
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reader := bufio.NewReader(resp.Body)
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for {
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line, err := reader.ReadString('\n')
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if err != nil {
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if err == io.EOF {
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break
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}
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fmt.Printf("Error reading line: %v\n", err)
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continue
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}
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line = strings.TrimSpace(line)
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if line == "" {
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continue
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}
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// Remove "data: " prefix if present
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line = strings.TrimPrefix(line, "data: ")
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var jsonData map[string]interface{}
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if err := json.Unmarshal([]byte(line), &jsonData); err != nil {
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fmt.Printf("Error unmarshaling JSON: %v\n", err)
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continue
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}
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event := getString(jsonData, "event")
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switch event {
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case "message":
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answer := getString(jsonData, "answer")
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var audio string
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// 定义标点符号map
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punctuations := map[string]bool{
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",": true, "，": true, // 逗号
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".": true, "。": true, // 句号
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"!": true, "！": true, // 感叹号
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"?": true, "？": true, // 问号
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";": true, "；": true, // 分号
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":": true, "：": true, // 冒号
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"、": true,
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}
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// 删除字符串前后的标点符号
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trimPunctuation := func(s string) string {
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if len(s) > 0 {
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// 获取最后一个字符的 rune
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lastRune, size := utf8.DecodeLastRuneInString(s)
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if punctuations[string(lastRune)] {
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s = s[:len(s)-size]
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}
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}
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return s
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}
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// 判断字符串是否包含标点符号
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containsPunctuation := func(s string) bool {
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for _, char := range s {
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if punctuations[string(char)] {
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return true
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}
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}
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return false
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}
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// 按标点符号分割文本
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splitByPunctuation := func(s string) []string {
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var result []string
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var current string
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for _, char := range s {
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if punctuations[string(char)] {
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if current != "" {
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result = append(result, current+string(char))
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current = ""
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}
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} else {
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current += string(char)
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}
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}
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if current != "" {
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result = append(result, current)
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}
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return result
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}
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new_message := ""
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initialSessage += answer
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if containsPunctuation(initialSessage) {
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segments := splitByPunctuation(initialSessage)
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// fmt.Printf("原始文本: %s\n", initialSessage)
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// fmt.Printf("分割后的片段数量: %d\n", len(segments))
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// for i, segment := range segments {
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// fmt.Printf("片段 %d: %s\n", i+1, segment)
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// }
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if len(segments) > 1 {
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initialSessage = segments[len(segments)-1]
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new_message = strings.Join(segments[:len(segments)-1], "")
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} else {
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new_message = initialSessage
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initialSessage = ""
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}
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// fmt.Printf("新消息: %s\n", new_message)
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// fmt.Printf("剩余文本: %s\n", initialSessage)
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}
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if new_message == "" {
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continue
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}
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s_msg := strings.TrimSpace(new_message)
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// Trim punctuation from the message
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new_message = trimPunctuation(s_msg)
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// fmt.Println("new_message", new_message)
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// 最多重试一次
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for i := 0; i < 1; i++ {
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speechResp, err := s.SynthesizeSpeech(new_message, audio_type)
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if err != nil {
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fmt.Printf("Error synthesizing speech: %v\n", err)
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break // 语音接口报错直接跳出
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}
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fmt.Println("语音：", speechResp)
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audio = speechResp.Data.Audio
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if audio != "" {
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// Download audio from URL and trim silence
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resp, err := http.Get(audio)
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if err != nil {
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fmt.Printf("Error downloading audio: %v\n", err)
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} else {
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defer resp.Body.Close()
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audioBytes, err := io.ReadAll(resp.Body)
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if err != nil {
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fmt.Printf("Error reading audio data: %v\n", err)
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} else {
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// Save original audio first
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originalPath := fmt.Sprintf("audio/original_%d.wav", time.Now().Unix())
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if err := os.WriteFile(originalPath, audioBytes, 0644); err != nil {
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fmt.Printf("Error saving original audio: %v\n", err)
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}
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// Convert audio bytes to base64 for processing
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audioBase64 := base64.StdEncoding.EncodeToString(audioBytes)
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trimmedAudio, err := s.TrimAudioSilence(audioBase64)
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if err != nil {
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fmt.Printf("Error trimming audio silence: %v\n", err)
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} else {
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// Save the trimmed audio as WAV file
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audio_path := fmt.Sprintf("trimmed_%d.wav", time.Now().Unix())
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outputPath := "audio/" + audio_path
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if err := s.SaveBase64AsWAV(trimmedAudio, outputPath); err != nil {
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fmt.Printf("Error saving trimmed WAV file: %v\n", err)
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}
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audio = s.config.FILE_URL + audio_path
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}
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}
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}
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break // 获取到音频就退出
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}
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fmt.Println("audio is empty, retry", speechResp)
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// time.Sleep(1 * time.Second)
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}
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messageChan <- Message{
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Answer: new_message,
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IsEnd: false,
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ConversationID: getString(jsonData, "conversation_id"),
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TaskID: getString(jsonData, "task_id"),
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ClientID: getString(data, "conversation_id"),
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AudioData: audio, // Update to use the correct path to audio data
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}
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case "message_end":
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messageChan <- Message{
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Answer: "",
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IsEnd: true,
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ConversationID: getString(jsonData, "conversation_id"),
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TaskID: getString(jsonData, "task_id"),
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}
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return
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}
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}
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}()
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return messageChan, nil
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}
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// handleNonStreamingResponse processes non-streaming responses
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func (s *LLMService) handleNonStreamingResponse(req *http.Request) (map[string]interface{}, error) {
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resp, err := s.client.Do(req)
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if err != nil {
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return nil, fmt.Errorf("error making request: %v", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
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}
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var result map[string]interface{}
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if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
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return nil, fmt.Errorf("error decoding response: %v", err)
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}
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return result, nil
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}
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// StopConversation stops an ongoing conversation
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func (s *LLMService) StopConversation(taskID string) (map[string]interface{}, error) {
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req, err := http.NewRequest("POST", fmt.Sprintf("%s/chat-messages/%s/stop", s.config.LLMApiURL, taskID), nil)
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if err != nil {
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return nil, fmt.Errorf("error creating request: %v", err)
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}
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req.Header.Set("Authorization", "Bearer "+s.config.LLMApiKey)
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req.Header.Set("Content-Type", "application/json")
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resp, err := s.client.Do(req)
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if err != nil {
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return nil, fmt.Errorf("error making request: %v", err)
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}
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defer resp.Body.Close()
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var result map[string]interface{}
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if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
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return nil, fmt.Errorf("error decoding response: %v", err)
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}
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return result, nil
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}
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// DeleteConversation deletes a conversation
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func (s *LLMService) DeleteConversation(conversationID, user string) (map[string]interface{}, error) {
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req, err := http.NewRequest("DELETE", fmt.Sprintf("%s/conversations/%s", s.config.LLMApiURL, conversationID), nil)
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if err != nil {
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return nil, fmt.Errorf("error creating request: %v", err)
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}
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req.Header.Set("Authorization", "Bearer "+s.config.LLMApiKey)
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req.Header.Set("Content-Type", "application/json")
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resp, err := s.client.Do(req)
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if err != nil {
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return nil, fmt.Errorf("error making request: %v", err)
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}
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defer resp.Body.Close()
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var result map[string]interface{}
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if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
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return nil, fmt.Errorf("error decoding response: %v", err)
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}
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return result, nil
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}
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// SynthesizeSpeech converts text to speech
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func (s *LLMService) SynthesizeSpeech(text string, audio string) (*SpeechResponse, error) {
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payload := SpeechRequest{
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Model: "speech-02-turbo",
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Text: text,
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Stream: false,
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LanguageBoost: "auto",
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OutputFormat: "url",
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VoiceSetting: VoiceSetting{
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VoiceID: audio,
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Speed: 1,
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Vol: 1,
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Pitch: 0,
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Emotion: "happy",
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},
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AudioSetting: AudioSetting{
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SampleRate: 32000,
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Bitrate: 128000,
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Format: "wav",
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},
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}
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jsonData, err := json.Marshal(payload)
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if err != nil {
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return nil, fmt.Errorf("error marshaling speech request: %v", err)
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}
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req, err := http.NewRequest("POST", s.config.MiniMaxApiURL, bytes.NewBuffer(jsonData))
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if err != nil {
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fmt.Println("error creating speech request: ", err)
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return nil, fmt.Errorf("error creating speech request: %v", err)
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}
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req.Header.Set("Authorization", "Bearer "+s.config.MiniMaxApiKey)
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req.Header.Set("Content-Type", "application/json")
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resp, err := s.client.Do(req)
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if err != nil {
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fmt.Println("error making speech request: ", err)
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return nil, fmt.Errorf("error making speech request: %v", err)
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}
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defer resp.Body.Close()
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// fmt.Println(resp.Body)
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if resp.StatusCode != http.StatusOK {
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fmt.Println("unexpected status code: ", resp.StatusCode)
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return nil, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
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}
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var result SpeechResponse
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if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
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fmt.Println("error decoding speech response: ", err)
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return nil, fmt.Errorf("error decoding speech response: %v", err)
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}
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return &result, nil
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}
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// StreamTextResponse handles streaming text output with predefined segments
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func (s *LLMService) StreamTextResponse(conversationID string) (chan Message, error) {
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messageChan := make(chan Message, 100)
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segments := []string{
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"好的，",
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"我已经成功替换了文本内容。",
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"新的文本是一段连续的描述，",
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"没有换行，",
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"总共65个字符，",
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"符合100字以内的要求，",
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"并且是一个连续的段落。",
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"现在我需要完成任务。",
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}
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go func() {
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defer close(messageChan)
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taskID := "task_" + time.Now().Format("20060102150405")
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for _, segment := range segments {
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// Send message
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messageChan <- Message{
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Answer: segment,
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IsEnd: false,
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ConversationID: conversationID,
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TaskID: taskID,
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ClientID: conversationID,
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}
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// Add delay between segments
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time.Sleep(500 * time.Millisecond)
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}
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// Send end message
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messageChan <- Message{
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Answer: "",
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IsEnd: true,
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ConversationID: conversationID,
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TaskID: taskID,
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}
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}()
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return messageChan, nil
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}
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// Helper function to safely get string values from interface{}
|
||
func getString(data map[string]interface{}, key string) string {
|
||
if val, ok := data[key]; ok {
|
||
if str, ok := val.(string); ok {
|
||
return str
|
||
}
|
||
}
|
||
return ""
|
||
}
|
||
|
||
// TrimAudioSilence trims the silence at the end of the audio data
|
||
func (s *LLMService) TrimAudioSilence(audioData string) (string, error) {
|
||
// Decode base64 audio data
|
||
decodedData, err := base64.StdEncoding.DecodeString(audioData)
|
||
if err != nil {
|
||
return "", fmt.Errorf("error decoding base64 audio: %v", err)
|
||
}
|
||
|
||
// Create a buffer from the decoded data
|
||
buf := bytes.NewReader(decodedData)
|
||
|
||
// Read RIFF header
|
||
var riffHeader struct {
|
||
ChunkID [4]byte
|
||
ChunkSize uint32
|
||
Format [4]byte
|
||
}
|
||
|
||
if err := binary.Read(buf, binary.LittleEndian, &riffHeader); err != nil {
|
||
return "", fmt.Errorf("error reading RIFF header: %v", err)
|
||
}
|
||
|
||
// Verify RIFF header
|
||
if string(riffHeader.ChunkID[:]) != "RIFF" || string(riffHeader.Format[:]) != "WAVE" {
|
||
return "", fmt.Errorf("invalid WAV format")
|
||
}
|
||
|
||
// Read fmt chunk
|
||
var fmtChunk struct {
|
||
Subchunk1ID [4]byte
|
||
Subchunk1Size uint32
|
||
AudioFormat uint16
|
||
NumChannels uint16
|
||
SampleRate uint32
|
||
ByteRate uint32
|
||
BlockAlign uint16
|
||
BitsPerSample uint16
|
||
}
|
||
|
||
if err := binary.Read(buf, binary.LittleEndian, &fmtChunk); err != nil {
|
||
return "", fmt.Errorf("error reading fmt chunk: %v", err)
|
||
}
|
||
|
||
// Skip any extra bytes in fmt chunk
|
||
if fmtChunk.Subchunk1Size > 16 {
|
||
extraBytes := make([]byte, fmtChunk.Subchunk1Size-16)
|
||
if _, err := buf.Read(extraBytes); err != nil {
|
||
return "", fmt.Errorf("error skipping extra fmt bytes: %v", err)
|
||
}
|
||
}
|
||
|
||
// Find data chunk
|
||
var dataChunk struct {
|
||
Subchunk2ID [4]byte
|
||
Subchunk2Size uint32
|
||
}
|
||
|
||
for {
|
||
if err := binary.Read(buf, binary.LittleEndian, &dataChunk); err != nil {
|
||
return "", fmt.Errorf("error reading chunk header: %v", err)
|
||
}
|
||
|
||
if string(dataChunk.Subchunk2ID[:]) == "data" {
|
||
break
|
||
}
|
||
|
||
// Skip this chunk
|
||
if _, err := buf.Seek(int64(dataChunk.Subchunk2Size), io.SeekCurrent); err != nil {
|
||
return "", fmt.Errorf("error skipping chunk: %v", err)
|
||
}
|
||
}
|
||
|
||
// Read audio data
|
||
audioBytes := make([]byte, dataChunk.Subchunk2Size)
|
||
if _, err := buf.Read(audioBytes); err != nil {
|
||
return "", fmt.Errorf("error reading audio data: %v", err)
|
||
}
|
||
|
||
// Calculate samples per channel
|
||
samplesPerChannel := len(audioBytes) / int(fmtChunk.BlockAlign)
|
||
channels := int(fmtChunk.NumChannels)
|
||
bytesPerSample := int(fmtChunk.BitsPerSample) / 8
|
||
|
||
// Find the last non-silent sample
|
||
lastNonSilent := 0
|
||
silenceThreshold := 0.01 // Adjust this threshold as needed
|
||
|
||
for i := 0; i < samplesPerChannel; i++ {
|
||
isSilent := true
|
||
for ch := 0; ch < channels; ch++ {
|
||
offset := i*int(fmtChunk.BlockAlign) + ch*bytesPerSample
|
||
if offset+bytesPerSample > len(audioBytes) {
|
||
continue
|
||
}
|
||
|
||
// Convert bytes to sample value
|
||
var sample int16
|
||
if err := binary.Read(bytes.NewReader(audioBytes[offset:offset+bytesPerSample]), binary.LittleEndian, &sample); err != nil {
|
||
continue
|
||
}
|
||
|
||
// Normalize sample to [-1, 1] range
|
||
normalizedSample := float64(sample) / 32768.0
|
||
if math.Abs(normalizedSample) > silenceThreshold {
|
||
isSilent = false
|
||
break
|
||
}
|
||
}
|
||
|
||
if !isSilent {
|
||
lastNonSilent = i
|
||
}
|
||
}
|
||
|
||
// Add a small buffer (e.g., 0.1 seconds) after the last non-silent sample
|
||
bufferSamples := int(float64(fmtChunk.SampleRate) * 0.1)
|
||
lastSample := lastNonSilent + bufferSamples
|
||
if lastSample > samplesPerChannel {
|
||
lastSample = samplesPerChannel
|
||
}
|
||
|
||
// Calculate new data size
|
||
newDataSize := lastSample * int(fmtChunk.BlockAlign)
|
||
trimmedAudio := audioBytes[:newDataSize]
|
||
|
||
// Create new buffer for the trimmed audio
|
||
var newBuf bytes.Buffer
|
||
|
||
// Write RIFF header
|
||
riffHeader.ChunkSize = uint32(36 + newDataSize)
|
||
if err := binary.Write(&newBuf, binary.LittleEndian, riffHeader); err != nil {
|
||
return "", fmt.Errorf("error writing RIFF header: %v", err)
|
||
}
|
||
|
||
// Write fmt chunk
|
||
if err := binary.Write(&newBuf, binary.LittleEndian, fmtChunk); err != nil {
|
||
return "", fmt.Errorf("error writing fmt chunk: %v", err)
|
||
}
|
||
|
||
// Write data chunk header
|
||
dataChunk.Subchunk2Size = uint32(newDataSize)
|
||
if err := binary.Write(&newBuf, binary.LittleEndian, dataChunk); err != nil {
|
||
return "", fmt.Errorf("error writing data chunk header: %v", err)
|
||
}
|
||
|
||
// Write trimmed audio data
|
||
if _, err := newBuf.Write(trimmedAudio); err != nil {
|
||
return "", fmt.Errorf("error writing trimmed audio data: %v", err)
|
||
}
|
||
|
||
// Encode back to base64
|
||
return base64.StdEncoding.EncodeToString(newBuf.Bytes()), nil
|
||
}
|
||
|
||
// SaveBase64AsWAV saves base64 encoded audio data as a WAV file
|
||
func (s *LLMService) SaveBase64AsWAV(base64Data string, outputPath string) error {
|
||
// Decode base64 data
|
||
audioData, err := base64.StdEncoding.DecodeString(base64Data)
|
||
if err != nil {
|
||
return fmt.Errorf("error decoding base64 data: %v", err)
|
||
}
|
||
|
||
// Validate WAV header
|
||
if len(audioData) < 44 { // WAV header is 44 bytes
|
||
return fmt.Errorf("invalid WAV data: too short")
|
||
}
|
||
|
||
// Check RIFF header
|
||
if string(audioData[0:4]) != "RIFF" {
|
||
return fmt.Errorf("invalid WAV format: missing RIFF header")
|
||
}
|
||
|
||
// Check WAVE format
|
||
if string(audioData[8:12]) != "WAVE" {
|
||
return fmt.Errorf("invalid WAV format: missing WAVE format")
|
||
}
|
||
|
||
// Create output directory if it doesn't exist
|
||
dir := filepath.Dir(outputPath)
|
||
if err := os.MkdirAll(dir, 0755); err != nil {
|
||
return fmt.Errorf("error creating directory: %v", err)
|
||
}
|
||
|
||
// Write the audio data to file
|
||
if err := os.WriteFile(outputPath, audioData, 0644); err != nil {
|
||
return fmt.Errorf("error writing WAV file: %v", err)
|
||
}
|
||
|
||
return nil
|
||
}
|