Updated qr code events and tls server

pkg/handlers/qr.go

@@ -0,0 +1,57 @@
+package handlers
+
+import (
+	"net/http"
+
+	"git.warky.dev/wdevs/whatshooked/pkg/logging"
+	"git.warky.dev/wdevs/whatshooked/pkg/whatsapp/whatsmeow"
+)
+
+// ServeQRCode serves the QR code image for a WhatsApp account
+func (h *Handlers) ServeQRCode(w http.ResponseWriter, r *http.Request) {
+	// Expected path format: /api/qr/{accountID}
+	path := r.URL.Path[len("/api/qr/"):]
+	accountID := path
+
+	if accountID == "" {
+		http.Error(w, "Invalid QR code path", http.StatusBadRequest)
+		return
+	}
+
+	// Get client from manager
+	client, exists := h.whatsappMgr.GetClient(accountID)
+	if !exists {
+		http.Error(w, "Account not found", http.StatusNotFound)
+		return
+	}
+
+	// Type assert to whatsmeow client (only whatsmeow clients have QR codes)
+	whatsmeowClient, ok := client.(*whatsmeow.Client)
+	if !ok {
+		http.Error(w, "QR codes are only available for whatsmeow clients", http.StatusBadRequest)
+		logging.Warn("QR code requested for non-whatsmeow client", "account_id", accountID)
+		return
+	}
+
+	// Get QR code PNG
+	pngData, err := whatsmeowClient.GetQRCodePNG()
+	if err != nil {
+		if err.Error() == "no QR code available" {
+			http.Error(w, "No QR code available. The account may already be connected or pairing has not started yet.", http.StatusNotFound)
+		} else {
+			logging.Error("Failed to generate QR code PNG", "account_id", accountID, "error", err)
+			http.Error(w, "Failed to generate QR code", http.StatusInternalServerError)
+		}
+		return
+	}
+
+	// Set headers
+	w.Header().Set("Content-Type", "image/png")
+	w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
+	w.Header().Set("Pragma", "no-cache")
+	w.Header().Set("Expires", "0")
+
+	// Write PNG data
+	writeBytes(w, pngData)
+	logging.Debug("QR code served", "account_id", accountID)
+}