init

Catalogger.Backend/Services/IWebhookCache.cs

@@ -0,0 +1,29 @@
+using Catalogger.Backend.Extensions;
+using Remora.Discord.API;
+using Remora.Discord.API.Abstractions.Objects;
+using Remora.Rest.Core;
+
+namespace Catalogger.Backend.Services;
+
+public interface IWebhookCache
+{
+    Task<Webhook?> GetWebhookAsync(ulong channelId);
+    Task SetWebhookAsync(ulong channelId, Webhook webhook);
+
+    public async Task<Webhook> GetOrFetchWebhookAsync(ulong channelId, Func<Snowflake, Task<IWebhook>> fetch)
+    {
+        var webhook = await GetWebhookAsync(channelId);
+        if (webhook != null) return webhook.Value;
+
+        var discordWebhook = await fetch(DiscordSnowflake.New(channelId));
+        webhook = new Webhook { Id = discordWebhook.ID.ToUlong(), Token = discordWebhook.Token.Value};
+        await SetWebhookAsync(channelId, webhook.Value);
+        return webhook.Value;
+    }
+}
+
+public struct Webhook
+{
+    public required ulong Id { get; init; }
+    public required string Token { get; init; }
+}