Whatsapp Business support

internal/whatsapp/interface.go

@@ -0,0 +1,34 @@
+package whatsapp
+
+import (
+	"context"
+
+	"go.mau.fi/whatsmeow/types"
+)
+
+// ClientType identifies the type of WhatsApp client
+type ClientType string
+
+const (
+	ClientTypeWhatsmeow   ClientType = "whatsmeow"
+	ClientTypeBusinessAPI ClientType = "business-api"
+)
+
+// Client represents any WhatsApp client implementation (whatsmeow or Business API)
+type Client interface {
+	// Connection Management
+	Connect(ctx context.Context) error
+	Disconnect() error
+	IsConnected() bool
+
+	// Account Information
+	GetID() string
+	GetPhoneNumber() string
+	GetType() string
+
+	// Message Sending
+	SendTextMessage(ctx context.Context, jid types.JID, text string) (messageID string, err error)
+	SendImage(ctx context.Context, jid types.JID, imageData []byte, mimeType string, caption string) (messageID string, err error)
+	SendVideo(ctx context.Context, jid types.JID, videoData []byte, mimeType string, caption string) (messageID string, err error)
+	SendDocument(ctx context.Context, jid types.JID, documentData []byte, mimeType string, filename string, caption string) (messageID string, err error)
+}