package websocket

import (
	"fmt"

	"go.fifitido.net/twitch/eventsub/websocket/messages"
)

func (t *Transport) handleMsg(msg *messages.Message) error {
	rawPayload := msg.Payload.(map[string]any)
	payload, err := messages.DecodePayload(&msg.Metadata, rawPayload)
	if err != nil {
		return err
	}

	switch msg.Metadata.MessageType {
	case messages.TypeSessionWelcome:
		payload := payload.(messages.SessionWelcomePayload)
		t.sessionId = payload.Session.ID
	case messages.TypeSessionKeepAlive:
		// TODO: add keep alive handler
	case messages.TypeRevocation:
		// TODO: add revocation handler
	case messages.TypeSessionReconnect:
		// TODO: add session reconnect handler
	case messages.TypeNotification:
		payload := payload.(messages.NotificationPayload)
		if t.opts.EventsHandler != nil {
			if err := t.opts.EventsHandler.Handle(payload.Event); err != nil {
				return err
			}
		}
	default:
		return fmt.Errorf("unknown message type: %s", msg.Metadata.MessageType)
	}

	if err := t.opts.EventsHandler.Handle(msg); err != nil {
		return err
	}

	return nil
}