feat(slack): show thought process (#83)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

services/connectors/slack.go

@@ -8,6 +8,7 @@ import (
 	"log"
 	"os"
 	"strings"
+	"sync"
 
 	"github.com/mudler/LocalAgent/pkg/xlog"
 	"github.com/mudler/LocalAgent/services/actions"
@@ -29,26 +30,63 @@ type Slack struct {
 	botToken    string
 	channelID   string
 	alwaysReply bool
+
+	// To track placeholder messages
+	placeholders     map[string]string // map[jobUUID]messageTS
+	placeholderMutex sync.RWMutex
+	apiClient        *slack.Client
 }
 
+const thinkingMessage = "thinking..."
+
 func NewSlack(config map[string]string) *Slack {
 	return &Slack{
-		appToken:    config["appToken"],
-		botToken:    config["botToken"],
-		channelID:   config["channelID"],
-		alwaysReply: config["alwaysReply"] == "true",
+		appToken:     config["appToken"],
+		botToken:     config["botToken"],
+		channelID:    config["channelID"],
+		alwaysReply:  config["alwaysReply"] == "true",
+		placeholders: make(map[string]string),
 	}
 }
 
 func (t *Slack) AgentResultCallback() func(state types.ActionState) {
 	return func(state types.ActionState) {
-		// Send the result to the bot
+		// The final result callback is intentionally empty as we're handling
+		// the final update in the handleMention function directly
 	}
 }
 
 func (t *Slack) AgentReasoningCallback() func(state types.ActionCurrentState) bool {
 	return func(state types.ActionCurrentState) bool {
-		// Send the reasoning to the bot
+		// Check if we have a placeholder message for this job
+		t.placeholderMutex.RLock()
+		msgTs, exists := t.placeholders[state.Job.UUID]
+		channel := ""
+		if state.Job.Metadata != nil {
+			if ch, ok := state.Job.Metadata["channel"].(string); ok {
+				channel = ch
+			}
+		}
+		t.placeholderMutex.RUnlock()
+
+		if !exists || msgTs == "" || channel == "" || t.apiClient == nil {
+			return true // Skip if we don't have a message to update
+		}
+
+		thought := thinkingMessage + "\n\n"
+		if state.Reasoning != "" {
+			thought += "Current thought process:\n" + state.Reasoning
+		}
+
+		// Update the placeholder message with the current reasoning
+		_, _, _, err := t.apiClient.UpdateMessage(
+			channel,
+			msgTs,
+			slack.MsgOptionText(githubmarkdownconvertergo.Slack(thought), false),
+		)
+		if err != nil {
+			xlog.Error(fmt.Sprintf("Error updating reasoning message: %v", err))
+		}
 		return true
 	}
 }
@@ -149,7 +187,10 @@ func (t *Slack) handleChannelMessage(
 			}
 		}
 
-		agentOptions := []types.JobOption{types.WithText(message)}
+		agentOptions := []types.JobOption{
+			types.WithText(message),
+			types.WithUUID(ev.ThreadTimeStamp),
+		}
 
 		// If the last message has an image, we send it as a multi content message
 		if len(imageBytes.Bytes()) > 0 {
@@ -207,6 +248,49 @@ func (t *Slack) handleMention(
 
 	go func() {
 		ts := ev.ThreadTimeStamp
+		var msgTs string // Timestamp of our placeholder message
+		var err error
+
+		// Store the API client for use in the callbacks
+		t.apiClient = api
+
+		// Send initial placeholder message
+		if ts != "" {
+			// If we're in a thread, post the placeholder there
+			_, respTs, err := api.PostMessage(ev.Channel,
+				slack.MsgOptionText(thinkingMessage, false),
+				slack.MsgOptionPostMessageParameters(postMessageParams),
+				slack.MsgOptionTS(ts))
+			if err != nil {
+				xlog.Error(fmt.Sprintf("Error posting initial message: %v", err))
+			} else {
+				msgTs = respTs
+			}
+		} else {
+			// Starting a new thread
+			_, respTs, err := api.PostMessage(ev.Channel,
+				slack.MsgOptionText(thinkingMessage, false),
+				slack.MsgOptionPostMessageParameters(postMessageParams),
+				slack.MsgOptionTS(ev.TimeStamp))
+			if err != nil {
+				xlog.Error(fmt.Sprintf("Error posting initial message: %v", err))
+			} else {
+				msgTs = respTs
+				// We're creating a new thread, so use this as our thread timestamp
+				ts = ev.TimeStamp
+			}
+		}
+
+		// Store the UUID->placeholder message mapping
+		// We'll use the thread timestamp as our UUID
+		jobUUID := ts
+		if jobUUID == "" {
+			jobUUID = ev.TimeStamp
+		}
+
+		t.placeholderMutex.Lock()
+		t.placeholders[jobUUID] = msgTs
+		t.placeholderMutex.Unlock()
 
 		var threadMessages []openai.ChatCompletionMessage
 
@@ -222,6 +306,11 @@ func (t *Slack) handleMention(
 				xlog.Error(fmt.Sprintf("Error fetching thread messages: %v", err))
 			} else {
 				for i, msg := range messages {
+					// Skip our placeholder message
+					if msg.Timestamp == msgTs {
+						continue
+					}
+
 					role := "assistant"
 					if msg.User != b.UserID {
 						role = "user"
@@ -350,32 +439,41 @@ func (t *Slack) handleMention(
 			}
 		}
 
+		// Add channel to job metadata for use in callbacks
+		metadata := map[string]interface{}{
+			"channel": ev.Channel,
+		}
+
+		// Call the agent with the conversation history
 		res := a.Ask(
-			//	types.WithText(message),
 			types.WithConversationHistory(threadMessages),
+			types.WithUUID(jobUUID),
+			types.WithMetadata(metadata),
 		)
 
-		res.Response = githubmarkdownconvertergo.Slack(res.Response)
-		var err error
-		if ts != "" {
-			_, _, err = api.PostMessage(ev.Channel,
-				slack.MsgOptionText(res.Response, true),
-				slack.MsgOptionPostMessageParameters(
-					postMessageParams,
-				),
+		// Format the final response
+		finalResponse := githubmarkdownconvertergo.Slack(res.Response)
+
+		// Update the placeholder message with the final result
+		t.placeholderMutex.RLock()
+		msgTs, exists := t.placeholders[jobUUID]
+		t.placeholderMutex.RUnlock()
+
+		if exists && msgTs != "" {
+			_, _, _, err = api.UpdateMessage(
+				ev.Channel,
+				msgTs,
+				slack.MsgOptionText(finalResponse, true),
 				slack.MsgOptionAttachments(generateAttachmentsFromJobResponse(res)...),
-				slack.MsgOptionTS(ts))
-		} else {
-			_, _, err = api.PostMessage(ev.Channel,
-				slack.MsgOptionText(res.Response, true),
-				slack.MsgOptionAttachments(generateAttachmentsFromJobResponse(res)...),
-				slack.MsgOptionPostMessageParameters(
-					postMessageParams,
-				),
-				slack.MsgOptionTS(ev.TimeStamp))
-		}
-		if err != nil {
-			xlog.Error(fmt.Sprintf("Error posting message: %v", err))
+			)
+			if err != nil {
+				xlog.Error(fmt.Sprintf("Error updating final message: %v", err))
+			}
+
+			// Clean up the placeholder map
+			t.placeholderMutex.Lock()
+			delete(t.placeholders, jobUUID)
+			t.placeholderMutex.Unlock()
 		}
 	}()
 }
@@ -388,6 +486,8 @@ func (t *Slack) Start(a *agent.Agent) {
 		slack.OptionAppLevelToken(t.appToken),
 	)
 
+	t.apiClient = api
+
 	postMessageParams := slack.PostMessageParameters{
 		LinkNames: 1,
 		Markdown:  true,