Swarm/DysonNetwork.Sphere/Activity/ActivityService.cs
2025-06-09 01:22:00 +08:00

80 lines
2.9 KiB
C#

using DysonNetwork.Sphere.Account;
using DysonNetwork.Sphere.Post;
using Microsoft.EntityFrameworkCore;
using NodaTime;
namespace DysonNetwork.Sphere.Activity;
public class ActivityService(AppDatabase db, RelationshipService rels, PostService ps)
{
public async Task<List<Activity>> GetActivitiesForAnyone(int take, Instant? cursor)
{
var activities = new List<Activity>();
// Crunching up data
var posts = await db.Posts
.Include(e => e.RepliedPost)
.Include(e => e.ForwardedPost)
.Include(e => e.Categories)
.Include(e => e.Tags)
.Where(e => e.RepliedPostId == null)
.Where(p => cursor == null || cursor > p.CreatedAt)
.OrderByDescending(p => p.PublishedAt)
.FilterWithVisibility(null, [], isListing: true)
.Take(take)
.ToListAsync();
posts = PostService.TruncatePostContent(posts);
posts = await ps.LoadPublishers(posts);
var postsId = posts.Select(e => e.Id).ToList();
var reactionMaps = await ps.GetPostReactionMapBatch(postsId);
foreach (var post in posts)
post.ReactionsCount =
reactionMaps.TryGetValue(post.Id, out var count) ? count : new Dictionary<string, int>();
// Formatting data
foreach (var post in posts)
activities.Add(post.ToActivity());
if (activities.Count == 0)
activities.Add(Activity.Empty());
return activities;
}
public async Task<List<Activity>> GetActivities(int take, Instant? cursor, Account.Account currentUser)
{
var activities = new List<Activity>();
var userFriends = await rels.ListAccountFriends(currentUser);
// Crunching data
var posts = await db.Posts
.Include(e => e.RepliedPost)
.Include(e => e.ForwardedPost)
.Include(e => e.Categories)
.Include(e => e.Tags)
.Where(e => e.RepliedPostId == null)
.Where(p => cursor == null || p.CreatedAt > cursor)
.OrderByDescending(p => p.PublishedAt)
.FilterWithVisibility(currentUser, userFriends, isListing: true)
.Take(take)
.ToListAsync();
posts = PostService.TruncatePostContent(posts);
posts = await ps.LoadPublishers(posts);
var postsId = posts.Select(e => e.Id).ToList();
var reactionMaps = await ps.GetPostReactionMapBatch(postsId);
foreach (var post in posts)
post.ReactionsCount =
reactionMaps.TryGetValue(post.Id, out var count) ? count : new Dictionary<string, int>();
// Formatting data
foreach (var post in posts)
activities.Add(post.ToActivity());
if (activities.Count == 0)
activities.Add(Activity.Empty());
return activities;
}
}