72 lines
2.5 KiB
C#
72 lines
2.5 KiB
C#
// Copyright (C) 2021-present sam (starshines.gay)
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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using Catalogger.Backend.Database.Redis;
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using Remora.Discord.API;
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using Remora.Discord.API.Abstractions.Objects;
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using Remora.Discord.API.Abstractions.Rest;
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namespace Catalogger.Backend.Api;
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public class ApiCache(RedisService redisService, IDiscordRestChannelAPI channelApi, Config config)
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{
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private List<IMessage>? _news;
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private readonly SemaphoreSlim _newsSemaphore = new(1);
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public async Task<List<IMessage>> GetNewsAsync()
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{
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await _newsSemaphore.WaitAsync();
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try
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{
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if (_news != null)
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return _news;
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if (config.Web.NewsChannel == null)
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return [];
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var res = await channelApi.GetChannelMessagesAsync(
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DiscordSnowflake.New(config.Web.NewsChannel.Value),
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limit: 5
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);
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if (res.IsSuccess)
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return _news = res.Entity.ToList();
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return [];
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}
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finally
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{
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_newsSemaphore.Release();
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}
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}
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private static string UserKey(string id) => $"api-user:{id}";
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private static string GuildsKey(string userId) => $"api-user-guilds:{userId}";
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public async Task<User?> GetUserAsync(string id) =>
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await redisService.GetAsync<User>(UserKey(id));
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public async Task SetUserAsync(User user) =>
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await redisService.SetAsync(UserKey(user.Id), user, expiry: TimeSpan.FromHours(1));
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public async Task ExpireUserAsync(string id) =>
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await redisService.GetDatabase().KeyDeleteAsync([UserKey(id), GuildsKey(id)]);
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public async Task<List<Guild>?> GetGuildsAsync(string userId) =>
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await redisService.GetAsync<List<Guild>>(GuildsKey(userId));
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public async Task SetGuildsAsync(string userId, List<Guild> guilds) =>
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await redisService.SetAsync(GuildsKey(userId), guilds, expiry: TimeSpan.FromHours(1));
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}
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