package messages

import (
	"fmt"

	"go.fifitido.net/twitch/api/eventsub"
)

type SessionWelcomePayload struct {
	Session Session `json:"session"`
}

type SessionKeepAlivePayload struct{}

type NotificationPayload struct {
	Subscription eventsub.Subscription `json:"subscription"`
	Event        any                   `json:"event"`
}

type SessionReconnectPayload struct {
	Session Session `json:"session"`
}

type RevocationPayload struct {
	Subscription eventsub.Subscription `json:"subscription"`
}

func DecodePayload(meta *Metadata, rawPayload map[string]any) (any, error) {
	switch meta.MessageType {
	case TypeSessionWelcome:
		return decode[SessionWelcomePayload](rawPayload)
	case TypeSessionKeepAlive:
		return SessionKeepAlivePayload{}, nil
	case TypeNotification:
		return decodeNotificationPayload(rawPayload)
	case TypeSessionReconnect:
		return decode[SessionReconnectPayload](rawPayload)
	case TypeRevocation:
		return decode[RevocationPayload](rawPayload)
	default:
		return nil, fmt.Errorf("unknown message type: %s", meta.MessageType)
	}
}