* First commit

pkg/tools/message.go

@@ -0,0 +1,87 @@
+package tools
+
+import (
+	"context"
+	"fmt"
+)
+
+type SendCallback func(channel, chatID, content string) error
+
+type MessageTool struct {
+	sendCallback   SendCallback
+	defaultChannel string
+	defaultChatID  string
+}
+
+func NewMessageTool() *MessageTool {
+	return &MessageTool{}
+}
+
+func (t *MessageTool) Name() string {
+	return "message"
+}
+
+func (t *MessageTool) Description() string {
+	return "Send a message to user on a chat channel. Use this when you want to communicate something."
+}
+
+func (t *MessageTool) Parameters() map[string]interface{} {
+	return map[string]interface{}{
+		"type": "object",
+		"properties": map[string]interface{}{
+			"content": map[string]interface{}{
+				"type":        "string",
+				"description": "The message content to send",
+			},
+			"channel": map[string]interface{}{
+				"type":        "string",
+				"description": "Optional: target channel (telegram, whatsapp, etc.)",
+			},
+			"chat_id": map[string]interface{}{
+				"type":        "string",
+				"description": "Optional: target chat/user ID",
+			},
+		},
+		"required": []string{"content"},
+	}
+}
+
+func (t *MessageTool) SetContext(channel, chatID string) {
+	t.defaultChannel = channel
+	t.defaultChatID = chatID
+}
+
+func (t *MessageTool) SetSendCallback(callback SendCallback) {
+	t.sendCallback = callback
+}
+
+func (t *MessageTool) Execute(ctx context.Context, args map[string]interface{}) (string, error) {
+	content, ok := args["content"].(string)
+	if !ok {
+		return "", fmt.Errorf("content is required")
+	}
+
+	channel, _ := args["channel"].(string)
+	chatID, _ := args["chat_id"].(string)
+
+	if channel == "" {
+		channel = t.defaultChannel
+	}
+	if chatID == "" {
+		chatID = t.defaultChatID
+	}
+
+	if channel == "" || chatID == "" {
+		return "Error: No target channel/chat specified", nil
+	}
+
+	if t.sendCallback == nil {
+		return "Error: Message sending not configured", nil
+	}
+
+	if err := t.sendCallback(channel, chatID, content); err != nil {
+		return fmt.Sprintf("Error sending message: %v", err), nil
+	}
+
+	return fmt.Sprintf("Message sent to %s:%s", channel, chatID), nil
+}