package api

import (
	"context"

	"github.com/tigorlazuardi/bluemage/go/pkg/errs"
	"github.com/tigorlazuardi/bluemage/go/pkg/telemetry"

	. "github.com/go-jet/jet/v2/sqlite"
	. "github.com/tigorlazuardi/bluemage/go/gen/jet/table"
)

func (api *API) SubredditExists(ctx context.Context, name string) (exist bool, err error) {
	ctx, span := tracer.Start(ctx, "SubredditExists")
	defer func() { telemetry.EndWithStatus(span, err) }()

	var count int64
	stmt := SELECT(COUNT(Subreddits.Name)).WHERE(Subreddits.Name.EQ(String(name)))
	query, args := stmt.Sql()

	err = api.DB.QueryRowContext(ctx, query, args...).Scan(&count)
	if err != nil {
		err = errs.
			Wrapw(err, "failed to check subreddit existence",
				"name", name,
				"query", stmt.DebugSql(),
			)
		return exist, err
	}
	return count > 0, err
}