package db

import (
	"context"
	"database/sql"
	"fmt"

	"github.com/yiplee/sqlc"
)

type Store interface {
	Querier
	GetTopListLocations(ctx context.Context, arg GetTopListLocationsParams) ([]GetTopListLocationsRow, error)
	GetImagesByLocation(ctx context.Context, arg GetImagesByLocationParams) ([]GetImagesByLocationRow, error)
	GetLocation(ctx context.Context, location_id int32) (GetLocationRow, error)
	GetUser(ctx context.Context, username string) (GetUserRow, error)
	GetUserStats(ctx context.Context, user_id int32) (GetUserStatsRow, error)
	CreateReview(ctx context.Context, arg CreateReviewParams) (Review, error)
	GetListLocationReviews(ctx context.Context, arg GetListLocationReviewsParams) ([]GetListLocationReviewsRow, error)
	CreateLocation(ctx context.Context, arg CreateLocationParams) (int32, error)
	CreateImage(ctx context.Context, arg []CreateImageParams) error
	CreateLocationTx(ctx context.Context, arg CreateLocationTxParams) error
}

type SQLStore struct {
	*Queries
	db *sql.DB
}

func NewStore(db *sql.DB) Store {
	return &SQLStore{
		db:      db,
		Queries: New(sqlc.Wrap(db)),
	}
}

// TRANSACTION QUERY FUNCTION
func (store *SQLStore) execTx(ctx context.Context, fn func(*Queries) error) error {
	tx, err := store.db.BeginTx(ctx, nil)
	if err != nil {
		return err
	}

	q := New(tx)
	err = fn(q)
	if err != nil {
		if rbErr := tx.Rollback(); rbErr != nil {
			return fmt.Errorf("tx err: %v, rb err : %v", err, rbErr)
		}
		return err
	}
	return tx.Commit()
}