modified: .env

modified:   bot.db
	modified:   db/db.go
	modified:   handlers/webhook.go
	modified:   services/whatsapp.go

.env

@@ -1,2 +1,4 @@
 
-OPENROUTER_API_KEY=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
+OPENROUTER_API_KEY=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
+WHATSAPP_PHONE_ID=986583417873961
+WHATSAPP_TOKEN=EAATqIU03y9YBQ5EBDxAFANmJIokKqjceliErZA1rYERpTzZBpRZAIKDVqlE2UWD0YUztSRwvsqjEdX2Uzt92Lsst5CEwcBiLZBbjiK8aAqpDclh2r2KyW5YvZCo7jXZAQf6dNYZABksjuxi5jUdLgfNQbhOhvSfv1z1qoWdZCUh9dUyzEcH3xmtCZBk9VG1qdtuLZBIlT335DSrSKgDpaLTBaWoe54aZCLwTxB89YZA78DkiIFmLq6dZBz3wSuUyMEfKokrRvtz7lXE6VkienXNucslgihZCkAMgZDZD

db/db.go

@@ -53,3 +53,21 @@ func SaveAppointment(phone string, date string) error {
 	)
 	return err
 }
+
+// GetOrCreateChatByPhone finds a chat for this phone number or creates one
+func GetOrCreateChatByPhone(phone string) int {
+	// 1. Check if we already have a chat for this phone
+	// (Note: You might want to add a 'phone' column to 'chats' table if you haven't yet.
+	// For now, I'll cheat and put the phone in the title if it's new)
+	var id int
+	err := Conn.QueryRow("SELECT id FROM chats WHERE title = ?", phone).Scan(&id)
+
+	if err == nil {
+		return id
+	}
+
+	// 2. If not found, create one
+	res, _ := Conn.Exec("INSERT INTO chats (title) VALUES (?)", phone)
+	newId, _ := res.LastInsertId()
+	return int(newId)
+}

handlers/webhook.go

@@ -1,17 +1,38 @@
 package handlers
 
 import (
+	"fmt"
 	"net/http"
+	"whatsapp-bot/db"
+	"whatsapp-bot/services"
 
 	"github.com/gin-gonic/gin"
 )
 
-// Meta verification
-func VerifyWebhook(c *gin.Context) {
-	challenge := c.Query("hub.challenge")
-	token := c.Query("hub.verify_token")
+// Structs to parse incoming WhatsApp Webhook JSON
+type WebhookPayload struct {
+	Entry []struct {
+		Changes []struct {
+			Value struct {
+				Messages []struct {
+					From string `json:"from"`
+					Text struct {
+						Body string `json:"body"`
+					} `json:"text"`
+					Type string `json:"type"`
+				} `json:"messages"`
+			} `json:"value"`
+		} `json:"changes"`
+	} `json:"entry"`
+}
 
-	if token == "YOUR_SECRET_TOKEN" {
+// VerifyWebhook (Keep this as is)
+func VerifyWebhook(c *gin.Context) {
+	mode := c.Query("hub.mode")
+	token := c.Query("hub.verify_token")
+	challenge := c.Query("hub.challenge")
+
+	if mode == "subscribe" && token == "YOUR_SECRET_TOKEN" { // CHANGE THIS to match your Meta setup
 		c.String(http.StatusOK, challenge)
 	} else {
 		c.Status(http.StatusForbidden)
@@ -19,7 +40,61 @@ func VerifyWebhook(c *gin.Context) {
 }
 
 func HandleMessage(c *gin.Context) {
-	// You should bind your WhatsApp types here
-	// go services.Process(...)
-	c.Status(http.StatusOK)
+	var payload WebhookPayload
+	if err := c.BindJSON(&payload); err != nil {
+		// WhatsApp sends other events (statuses) that might not match. Ignore errors.
+		c.Status(200)
+		return
+	}
+
+	// 1. Loop through messages (usually just one)
+	for _, entry := range payload.Entry {
+		for _, change := range entry.Changes {
+			for _, msg := range change.Value.Messages {
+
+				// We only handle text for now
+				if msg.Type != "text" {
+					continue
+				}
+
+				userPhone := msg.From
+				userText := msg.Text.Body
+
+				fmt.Printf("📩 Received from %s: %s\n", userPhone, userText)
+
+				// 2. Identify the Chat Logic
+				chatID := db.GetOrCreateChatByPhone(userPhone)
+
+				// 3. Save User Message
+				db.Conn.Exec("INSERT INTO messages (chat_id, role, content) VALUES (?, 'user', ?)", chatID, userText)
+
+				// 4. Get AI Response
+				// Fetch history
+				rows, _ := db.Conn.Query("SELECT role, content FROM messages WHERE chat_id = ? ORDER BY created_at ASC", chatID)
+				var history []services.Message
+				for rows.Next() {
+					var m services.Message
+					rows.Scan(&m.Role, &m.Content)
+					history = append(history, m)
+				}
+				rows.Close()
+
+				// Call AI (We don't need the stream callback here, just the final string)
+				aiResponse, _ := services.StreamAIResponse(history, func(chunk string) {
+					// We can't stream to WhatsApp, so we do nothing here.
+				})
+
+				// 5. Save & Send Response
+				if aiResponse != "" {
+					db.Conn.Exec("INSERT INTO messages (chat_id, role, content) VALUES (?, 'assistant', ?)", chatID, aiResponse)
+					err := services.SendWhatsAppMessage(userPhone, aiResponse)
+					if err != nil {
+						fmt.Println("❌ Error sending to WhatsApp:", err)
+					}
+				}
+			}
+		}
+	}
+
+	c.Status(200)
 }

services/whatsapp.go

@@ -1 +1,43 @@
 package services
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+)
+
+// SendWhatsAppMessage sends a text reply to a user
+func SendWhatsAppMessage(toPhone string, messageBody string) error {
+	token := os.Getenv("WHATSAPP_TOKEN")      // "EAA..."
+	phoneID := os.Getenv("WHATSAPP_PHONE_ID") // "100..."
+	version := "v17.0"
+	url := fmt.Sprintf("https://graph.facebook.com/%s/%s/messages", version, phoneID)
+
+	payload := map[string]interface{}{
+		"messaging_product": "whatsapp",
+		"to":                toPhone,
+		"type":              "text",
+		"text": map[string]string{
+			"body": messageBody,
+		},
+	}
+
+	jsonData, _ := json.Marshal(payload)
+	req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
+	req.Header.Set("Authorization", "Bearer "+token)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		return fmt.Errorf("whatsapp api error: status %d", resp.StatusCode)
+	}
+
+	return nil
+}