package storage

import (
	"context"
	"net/url"

	"github.com/matrix-org/dendrite/appservice/storage/postgres"
	"github.com/matrix-org/dendrite/appservice/storage/sqlite3"
	"github.com/matrix-org/gomatrixserverlib"
)

type Database interface {
	StoreEvent(ctx context.Context, appServiceID string, event *gomatrixserverlib.Event) error
	GetEventsWithAppServiceID(ctx context.Context, appServiceID string, limit int) (int, int, []gomatrixserverlib.Event, bool, error)
	CountEventsWithAppServiceID(ctx context.Context, appServiceID string) (int, error)
	UpdateTxnIDForEvents(ctx context.Context, appserviceID string, maxID, txnID int) error
	RemoveEventsBeforeAndIncludingID(ctx context.Context, appserviceID string, eventTableID int) error
	GetLatestTxnID(ctx context.Context) (int, error)
}

func NewDatabase(dataSourceName string) (Database, error) {
	uri, err := url.Parse(dataSourceName)
	if err != nil {
		return postgres.NewDatabase(dataSourceName)
	}
	switch uri.Scheme {
	case "postgres":
		return postgres.NewDatabase(dataSourceName)
	case "file":
		return sqlite3.NewDatabase(dataSourceName)
	default:
		return postgres.NewDatabase(dataSourceName)
	}
}