// Copyright (C) 2021-present sam (starshines.gay)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

using Catalogger.Backend.Database.Models;
using Catalogger.Backend.Extensions;
using Remora.Rest.Core;

namespace Catalogger.Backend.Database.Queries;

public static class QueryExtensions
{
    public static async ValueTask<Guild> GetGuildAsync(
        this DatabaseContext db,
        Snowflake id,
        CancellationToken ct = default
    ) => await db.GetGuildAsync(id.ToUlong(), ct);

    public static async ValueTask<Guild> GetGuildAsync(
        this DatabaseContext db,
        Optional<Snowflake> id,
        CancellationToken ct = default
    ) => await db.GetGuildAsync(id.ToUlong(), ct);

    public static async ValueTask<Guild> GetGuildAsync(
        this DatabaseContext db,
        ulong id,
        CancellationToken ct = default
    )
    {
        var guild = await db.Guilds.FindAsync([id], ct);
        if (guild == null)
            throw new CataloggerError("Guild not found, was not initialized during guild create");
        return guild;
    }

    public static async Task<Watchlist?> GetWatchlistEntryAsync(
        this DatabaseContext db,
        Snowflake guildId,
        Snowflake userId,
        CancellationToken ct = default
    ) => await db.Watchlists.FindAsync([guildId.Value, userId.Value], ct);
}