package sql

import (
	"context"

	"emperror.dev/errors"
	"github.com/georgysavva/scany/v2/pgxscan"
	"github.com/jackc/pgx/v5"
	"github.com/jackc/pgx/v5/pgconn"
	"github.com/keegancsmith/sqlf"
)

type Querier interface {
	Query(ctx context.Context, query string, args ...interface{}) (pgx.Rows, error)
	QueryRow(ctx context.Context, sql string, args ...any) pgx.Row
	Exec(ctx context.Context, sql string, arguments ...any) (pgconn.CommandTag, error)
}

type ReleaseableQuerier interface {
	Querier

	Release()
}

type Tx interface {
	Querier

	Commit(ctx context.Context) error
	Rollback(ctx context.Context) error
}

func Select[T any](ctx context.Context, querier Querier, query *sqlf.Query) ([]T, error) {
	dst := make([]T, 0)

	err := pgxscan.Select(ctx, querier, &dst, query.Query(sqlf.PostgresBindVar), query.Args()...)
	if err != nil {
		return []T{}, errors.Wrap(err, "executing query")
	}
	return dst, nil
}

func Get[T any](ctx context.Context, querier Querier, query *sqlf.Query) (T, error) {
	var dst T

	err := pgxscan.Get(ctx, querier, &dst, query.Query(sqlf.PostgresBindVar), query.Args()...)
	if err != nil {
		return dst, errors.Wrap(err, "executing query")
	}
	return dst, nil
}