Swarm/DysonNetwork.Sphere/Activity/ActivityController.cs
2025-06-08 23:52:02 +08:00

38 lines
1.5 KiB
C#

using DysonNetwork.Sphere.Account;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using NodaTime;
namespace DysonNetwork.Sphere.Activity;
/// <summary>
/// Activity is a universal feed that contains multiple kinds of data. Personalized and generated dynamically.
/// </summary>
[ApiController]
[Route("/activities")]
public class ActivityController(
ActivityService acts
) : ControllerBase
{
/// <summary>
/// Listing the activities for the user, users may be logged in or not to use this API.
/// When the users are not logged in, this API will return the posts that are public.
/// When the users are logged in,
/// the API will personalize the user's experience
/// by ranking up the people they like and the posts they like.
/// Besides, when users are logged in, it will also mix the other kinds of data and who're plying to them.
/// </summary>
[HttpGet]
public async Task<ActionResult<List<Activity>>> ListActivities([FromQuery] int? cursor, [FromQuery] int take = 20)
{
var cursorTimestamp = cursor is <= 1000
? SystemClock.Instance.GetCurrentInstant()
: Instant.FromUnixTimeMilliseconds(cursor!.Value);
HttpContext.Items.TryGetValue("CurrentUser", out var currentUserValue);
if (currentUserValue is not Account.Account currentUser)
return Ok(await acts.GetActivitiesForAnyone(take, cursorTimestamp));
return Ok(await acts.GetActivities(take, cursorTimestamp, currentUser));
}
}