mirror of
https://github.com/memohai/Memoh.git
synced 2026-04-25 07:00:48 +09:00
Acbox
360 lines
9.5 KiB
Go
360 lines
9.5 KiB
Go
package feishu
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import (
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"context"
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"encoding/json"
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"fmt"
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"regexp"
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"strings"
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"sync/atomic"
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"time"
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"github.com/google/uuid"
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lark "github.com/larksuite/oapi-sdk-go/v3"
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larkim "github.com/larksuite/oapi-sdk-go/v3/service/im/v1"
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"github.com/memohai/memoh/internal/channel"
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)
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const (
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feishuStreamThinkingText = "Thinking..."
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feishuStreamToolHintText = "Calling tools..."
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feishuStreamPatchInterval = 700 * time.Millisecond
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feishuStreamMaxRunes = 8000
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)
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type feishuOutboundStream struct {
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adapter *FeishuAdapter
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cfg channel.ChannelConfig
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target string
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reply *channel.ReplyRef
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client *lark.Client
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receiveID string
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receiveType string
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cardMessageID string
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textBuffer strings.Builder
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lastPatchedAt time.Time
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lastPatched string
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patchInterval time.Duration
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closed atomic.Bool
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}
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func (s *feishuOutboundStream) Push(ctx context.Context, event channel.StreamEvent) error {
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if s == nil || s.adapter == nil {
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return fmt.Errorf("feishu stream not configured")
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}
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if s.closed.Load() {
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return fmt.Errorf("feishu stream is closed")
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}
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select {
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case <-ctx.Done():
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return ctx.Err()
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default:
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}
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switch event.Type {
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case channel.StreamEventStatus:
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if event.Status == channel.StreamStatusStarted {
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return s.ensureCard(ctx, feishuStreamThinkingText)
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}
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return nil
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case channel.StreamEventDelta:
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if event.Delta == "" {
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return nil
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}
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s.textBuffer.WriteString(event.Delta)
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if err := s.ensureCard(ctx, feishuStreamThinkingText); err != nil {
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return err
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}
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if time.Since(s.lastPatchedAt) < s.patchInterval && !strings.Contains(event.Delta, "\n") {
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return nil
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}
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return s.patchCard(ctx, s.textBuffer.String())
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case channel.StreamEventToolCallStart:
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bufText := strings.TrimSpace(s.textBuffer.String())
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if s.cardMessageID != "" && bufText != "" {
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_ = s.patchCard(ctx, bufText)
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}
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s.cardMessageID = ""
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s.lastPatched = ""
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s.lastPatchedAt = time.Time{}
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s.textBuffer.Reset()
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return nil
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case channel.StreamEventToolCallEnd:
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s.cardMessageID = ""
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s.lastPatched = ""
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s.lastPatchedAt = time.Time{}
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s.textBuffer.Reset()
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return nil
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case channel.StreamEventAttachment:
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if len(event.Attachments) == 0 {
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return nil
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}
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media := channel.Message{
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Attachments: event.Attachments,
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}
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return s.adapter.Send(ctx, s.cfg, channel.OutboundMessage{
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Target: s.target,
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Message: media,
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})
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case channel.StreamEventAgentStart, channel.StreamEventAgentEnd, channel.StreamEventPhaseStart, channel.StreamEventPhaseEnd, channel.StreamEventProcessingStarted, channel.StreamEventProcessingCompleted, channel.StreamEventProcessingFailed:
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return nil
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case channel.StreamEventFinal:
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if event.Final == nil || event.Final.Message.IsEmpty() {
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return nil
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}
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msg := event.Final.Message
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bufText := strings.TrimSpace(s.textBuffer.String())
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finalText := bufText
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if finalText == "" {
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finalText = strings.TrimSpace(msg.PlainText())
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}
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if finalText != "" {
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if err := s.ensureCard(ctx, feishuStreamThinkingText); err != nil {
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return err
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}
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if err := s.patchCard(ctx, finalText); err != nil {
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return err
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}
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}
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if len(msg.Attachments) > 0 {
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media := msg
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media.Format = ""
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media.Text = ""
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media.Parts = nil
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media.Actions = nil
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media.Reply = nil
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return s.adapter.Send(ctx, s.cfg, channel.OutboundMessage{
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Target: s.target,
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Message: media,
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})
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}
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return nil
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case channel.StreamEventError:
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errText := strings.TrimSpace(event.Error)
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if errText == "" {
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return nil
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}
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if err := s.ensureCard(ctx, feishuStreamThinkingText); err != nil {
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return err
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}
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return s.patchCard(ctx, "Error: "+errText)
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default:
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return nil
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}
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}
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func (s *feishuOutboundStream) Close(ctx context.Context) error {
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if s == nil {
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return nil
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}
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select {
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case <-ctx.Done():
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return ctx.Err()
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default:
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}
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s.closed.Store(true)
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return nil
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}
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func (s *feishuOutboundStream) ensureCard(ctx context.Context, text string) error {
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if strings.TrimSpace(s.cardMessageID) != "" {
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return nil
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}
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if s.client == nil {
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return fmt.Errorf("feishu client not configured")
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}
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content, err := buildFeishuStreamCardContent(text)
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if err != nil {
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return err
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}
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if s.reply != nil && strings.TrimSpace(s.reply.MessageID) != "" {
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replyReq := larkim.NewReplyMessageReqBuilder().
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MessageId(strings.TrimSpace(s.reply.MessageID)).
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Body(larkim.NewReplyMessageReqBodyBuilder().
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Content(content).
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MsgType(larkim.MsgTypeInteractive).
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Uuid(uuid.NewString()).
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Build()).
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Build()
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replyResp, err := s.client.Im.V1.Message.Reply(ctx, replyReq)
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if err != nil {
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return err
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}
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if replyResp == nil || !replyResp.Success() {
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code, msg := 0, ""
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if replyResp != nil {
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code, msg = replyResp.Code, replyResp.Msg
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}
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return fmt.Errorf("feishu stream reply failed: %s (code: %d)", msg, code)
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}
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if replyResp.Data == nil || replyResp.Data.MessageId == nil || strings.TrimSpace(*replyResp.Data.MessageId) == "" {
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return fmt.Errorf("feishu stream reply failed: empty message id")
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}
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s.cardMessageID = strings.TrimSpace(*replyResp.Data.MessageId)
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s.lastPatched = normalizeFeishuStreamText(text)
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s.lastPatchedAt = time.Now()
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return nil
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}
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createReq := larkim.NewCreateMessageReqBuilder().
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ReceiveIdType(s.receiveType).
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Body(larkim.NewCreateMessageReqBodyBuilder().
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ReceiveId(s.receiveID).
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MsgType(larkim.MsgTypeInteractive).
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Content(content).
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Uuid(uuid.NewString()).
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Build()).
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Build()
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createResp, err := s.client.Im.V1.Message.Create(ctx, createReq)
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if err != nil {
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return err
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}
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if createResp == nil || !createResp.Success() {
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code, msg := 0, ""
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if createResp != nil {
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code, msg = createResp.Code, createResp.Msg
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}
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return fmt.Errorf("feishu stream create failed: %s (code: %d)", msg, code)
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}
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if createResp.Data == nil || createResp.Data.MessageId == nil || strings.TrimSpace(*createResp.Data.MessageId) == "" {
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return fmt.Errorf("feishu stream create failed: empty message id")
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}
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s.cardMessageID = strings.TrimSpace(*createResp.Data.MessageId)
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s.lastPatched = normalizeFeishuStreamText(text)
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s.lastPatchedAt = time.Now()
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return nil
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}
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func (s *feishuOutboundStream) patchCard(ctx context.Context, text string) error {
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if strings.TrimSpace(s.cardMessageID) == "" {
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return fmt.Errorf("feishu stream card message not initialized")
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}
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contentText := normalizeFeishuStreamText(text)
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if contentText == s.lastPatched {
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return nil
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}
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content, err := buildFeishuStreamCardContent(contentText)
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if err != nil {
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return err
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}
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patchReq := larkim.NewPatchMessageReqBuilder().
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MessageId(strings.TrimSpace(s.cardMessageID)).
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Body(larkim.NewPatchMessageReqBodyBuilder().
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Content(content).
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Build()).
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Build()
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patchResp, err := s.client.Im.V1.Message.Patch(ctx, patchReq)
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if err != nil {
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return err
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}
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if patchResp == nil || !patchResp.Success() {
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code, msg := 0, ""
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if patchResp != nil {
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code, msg = patchResp.Code, patchResp.Msg
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}
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return fmt.Errorf("feishu stream patch failed: %s (code: %d)", msg, code)
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}
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s.lastPatched = contentText
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s.lastPatchedAt = time.Now()
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return nil
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}
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// extractReadableFromJSON tries to extract human-readable text from JSON-like content.
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// Returns the original text if not JSON or extraction fails.
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func extractReadableFromJSON(text string) string {
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trimmed := strings.TrimSpace(text)
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if trimmed == "" {
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return text
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}
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first := strings.TrimLeft(trimmed, " \t\n\r")
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if (len(first) > 0 && first[0] != '{' && first[0] != '[') || len(first) < 2 {
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return text
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}
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var raw map[string]any
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if err := json.Unmarshal([]byte(trimmed), &raw); err != nil {
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var arr []any
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if err := json.Unmarshal([]byte(trimmed), &arr); err != nil {
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return text
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}
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if len(arr) == 0 {
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return text
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}
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if s, ok := arr[0].(string); ok && strings.TrimSpace(s) != "" {
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return s
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}
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return text
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}
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for _, key := range []string{"text", "message", "content", "result", "output", "response", "answer"} {
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if v, ok := raw[key]; ok && v != nil {
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switch val := v.(type) {
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case string:
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if strings.TrimSpace(val) != "" {
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return val
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}
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case map[string]any:
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if b, err := json.Marshal(val); err == nil {
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return string(b)
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}
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}
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}
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}
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return text
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}
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func buildFeishuStreamCardContent(text string) (string, error) {
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content := normalizeFeishuStreamText(extractReadableFromJSON(text))
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body := processFeishuCardMarkdown(content)
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card := map[string]any{
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"config": map[string]any{
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"wide_screen_mode": true,
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"enable_forward": true,
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"update_multi": true,
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},
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"elements": []map[string]any{
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{
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"tag": "div",
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"fields": []map[string]any{
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{
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"is_short": false,
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"text": map[string]any{
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"tag": "lark_md",
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"content": body,
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},
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},
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},
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},
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},
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}
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data, err := json.Marshal(card)
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if err != nil {
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return "", err
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}
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return string(data), nil
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}
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var feishuCardHeadingPrefix = regexp.MustCompile(`(?m)^#{1,6}\s+(.+)$`)
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// processFeishuCardMarkdown normalizes markdown for Feishu card lark_md (e.g. ATX headings to bold).
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func processFeishuCardMarkdown(s string) string {
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s = strings.ReplaceAll(s, "\\n", "\n")
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s = feishuCardHeadingPrefix.ReplaceAllStringFunc(s, func(m string) string {
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parts := feishuCardHeadingPrefix.FindStringSubmatch(m)
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if len(parts) == 2 {
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return "**" + parts[1] + "**"
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}
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return m
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})
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return s
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}
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func normalizeFeishuStreamText(text string) string {
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trimmed := strings.TrimSpace(text)
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if trimmed == "" {
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return feishuStreamThinkingText
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}
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runes := []rune(trimmed)
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if len(runes) <= feishuStreamMaxRunes {
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return trimmed
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}
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return "...\n" + string(runes[len(runes)-feishuStreamMaxRunes:])
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}
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