feat: watchlist commands

Catalogger.Backend/Database/Repositories/WatchlistRepository.cs

@@ -33,12 +33,43 @@ public class WatchlistRepository(ILogger logger, DatabaseConnection conn)
             )
         ).ToList();
 
-    public async Task<Watchlist?> GetWatchlistEntryAsync(Snowflake guildId, Snowflake userId) =>
+    public async Task<Watchlist?> GetEntryAsync(Snowflake guildId, Snowflake userId) =>
         await conn.QueryFirstOrDefaultAsync<Watchlist>(
             "select * from watchlists where guild_id = @GuildId and user_id = @UserId",
             new { GuildId = guildId.Value, UserId = userId.Value }
         );
 
+    public async Task<Watchlist> CreateEntryAsync(
+        Snowflake guildId,
+        Snowflake userId,
+        Snowflake moderatorId,
+        string reason
+    ) =>
+        await conn.QueryFirstAsync<Watchlist>(
+            """
+            insert into watchlists (guild_id, user_id, added_at, moderator_id, reason)
+            values (@GuildId, @UserId, now(), @ModeratorId, @Reason)
+            on conflict (guild_id, user_id) do update
+            set moderator_id = @ModeratorId, added_at = now(), reason = @Reason
+            returning *
+            """,
+            new
+            {
+                GuildId = guildId.Value,
+                UserId = userId.Value,
+                ModeratorId = moderatorId.Value,
+                Reason = reason,
+            }
+        );
+
+    public async Task<bool> RemoveEntryAsync(Snowflake guildId, Snowflake userId) =>
+        (
+            await conn.ExecuteAsync(
+                "delete from watchlists where guild_id = @GuildId and user_id = @UserId",
+                new { GuildId = guildId.Value, UserId = userId.Value }
+            )
+        ) != 0;
+
     public void Dispose()
     {
         conn.Dispose();