GatewayOffload: rename to Offload

extra/admin-api/Spacebar.Offload/Controllers/Op14Controller.cs

@@ -0,0 +1,51 @@
+using System.Text.Json;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using Spacebar.GatewayOffload.Extensions.Db;
+using Spacebar.Interop.Authentication.AspNetCore;
+using Spacebar.Interop.Replication.Abstractions;
+using Spacebar.Models.Db.Contexts;
+using Spacebar.Models.Gateway;
+using Spacebar.Models.Generic;
+
+namespace Spacebar.GatewayOffload.Controllers;
+
+[ApiController]
+[Route("/_spacebar/offload/gateway/LazyRequest")]
+public class Op14Controller(ILogger<Op12Controller> logger, SpacebarAspNetAuthenticationService authService, SpacebarDbContext db, IServiceProvider sp) : ControllerBase {
+    [HttpPost]
+    // TODO: actually return something?
+    public async IAsyncEnumerable<ContentlessReplicationMessage> DoLazyRequest([FromBody] LazyRequest payload) {
+        var user = await TraceResult.TraceAsync("getAuthUser", () => authService.GetCurrentUserAsync(Request));
+        var session = await TraceResult.TraceAsync("getAuthSession", () => authService.GetCurrentSessionAsync(Request));
+
+        if (!await db.Members.AsNoTracking().AnyAsync(m => m.GuildId == payload.GuildId && m.Id == user.Result.Id)) {
+            logger.LogWarning("User {user} requested lazy member list for guild {guildId}, but is not a member", user.Result.Id, payload.GuildId);
+            yield break;
+        }
+
+        if (payload.Channels.Count == 0) {
+            logger.LogWarning("User {user} requested lazy member list for guild {guildId}, but is not a member", user.Result.Tag, payload.GuildId);
+            yield break;
+        }
+
+        // Fetch hoisted roles for the guild to define groups
+        var hoistedRoles = await db.Roles
+            .AsNoTracking()
+            .Where(r => r.GuildId == payload.GuildId && r.Hoist)
+            .OrderByDescending(r => r.Position)
+            .Select(r => new { r.Id })
+            .ToListAsync();
+    }
+
+    private async Task<string?> GetMemberListIdAsync(SpacebarDbContext db, string guildId, string channelId) {
+        var channel = await db.Channels.AsNoTracking().FirstOrDefaultAsync(c => c.Id == channelId && c.GuildId == guildId);
+        if (channel == null) return null;
+
+        if (string.IsNullOrWhiteSpace(channel.PermissionOverwrites) || channel.PermissionOverwrites == "[]") {
+            return "everyone";
+        }
+
+        return null; // TODO
+    }
+}