✨ Activity-based browsing

DysonNetwork.Sphere/Activity/ActivityController.cs

@@ -0,0 +1,33 @@
+using DysonNetwork.Sphere.Account;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace DysonNetwork.Sphere.Activity;
+
+[ApiController]
+[Route("/activities")]
+public class ActivityController(AppDatabase db, ActivityService act, RelationshipService rels) : ControllerBase
+{
+    [HttpGet]
+    public async Task<ActionResult<List<Activity>>> ListActivities([FromQuery] int offset, [FromQuery] int take = 20)
+    {
+        HttpContext.Items.TryGetValue("CurrentUser", out var currentUserValue);
+        var currentUser = currentUserValue as Account.Account;
+        var userFriends = await rels.ListAccountFriends(currentUser!);
+
+        var totalCount = await db.Activities
+            .FilterWithVisibility(currentUser, userFriends)
+            .CountAsync();
+        var posts = await db.Activities
+            .Include(e => e.Account)
+            .FilterWithVisibility(currentUser, userFriends)
+            .OrderByDescending(e => e.CreatedAt)
+            .Skip(offset)
+            .Take(take)
+            .ToListAsync();
+
+        Response.Headers["X-Total"] = totalCount.ToString();
+
+        return Ok(posts); 
+    }
+}