💥 Rename Pusher to Ring

2025-09-14 19:42:51 +08:00
parent 4ee387ab76
commit 5c97733b3e
52 changed files with 308 additions and 308 deletions
--- a/DysonNetwork.Ring/AppDatabase.cs
+++ b/DysonNetwork.Ring/AppDatabase.cs
@@ -0,0 +1,178 @@
+using System.Linq.Expressions;
+using System.Reflection;
+using DysonNetwork.Ring.Notification;
+using DysonNetwork.Shared.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+using Microsoft.EntityFrameworkCore.Query;
+using NodaTime;
+using Quartz;
+
+namespace DysonNetwork.Ring;
+
+public class AppDatabase(
+    DbContextOptions<AppDatabase> options,
+    IConfiguration configuration
+) : DbContext(options)
+{
+    public DbSet<Notification.Notification> Notifications { get; set; } = null!;
+    public DbSet<PushSubscription> PushSubscriptions { get; set; } = null!;
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        optionsBuilder.UseNpgsql(
+            configuration.GetConnectionString("App"),
+            opt => opt
+                .ConfigureDataSource(optSource => optSource.EnableDynamicJson())
+                .UseQuerySplittingBehavior(QuerySplittingBehavior.SplitQuery)
+                .UseNodaTime()
+        ).UseSnakeCaseNamingConvention();
+
+        base.OnConfiguring(optionsBuilder);
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        // Automatically apply soft-delete filter to all entities inheriting BaseModel
+        foreach (var entityType in modelBuilder.Model.GetEntityTypes())
+        {
+            if (!typeof(ModelBase).IsAssignableFrom(entityType.ClrType)) continue;
+            var method = typeof(AppDatabase)
+                .GetMethod(nameof(SetSoftDeleteFilter),
+                    BindingFlags.NonPublic | BindingFlags.Static)!
+                .MakeGenericMethod(entityType.ClrType);
+
+            method.Invoke(null, [modelBuilder]);
+        }
+    }
+
+    private static void SetSoftDeleteFilter<TEntity>(ModelBuilder modelBuilder)
+        where TEntity : ModelBase
+    {
+        modelBuilder.Entity<TEntity>().HasQueryFilter(e => e.DeletedAt == null);
+    }
+
+    public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
+    {
+        var now = SystemClock.Instance.GetCurrentInstant();
+
+        foreach (var entry in ChangeTracker.Entries<ModelBase>())
+        {
+            switch (entry.State)
+            {
+                case EntityState.Added:
+                    entry.Entity.CreatedAt = now;
+                    entry.Entity.UpdatedAt = now;
+                    break;
+                case EntityState.Modified:
+                    entry.Entity.UpdatedAt = now;
+                    break;
+                case EntityState.Deleted:
+                    entry.State = EntityState.Modified;
+                    entry.Entity.DeletedAt = now;
+                    break;
+                case EntityState.Detached:
+                case EntityState.Unchanged:
+                default:
+                    break;
+            }
+        }
+
+        return await base.SaveChangesAsync(cancellationToken);
+    }
+}
+
+public class AppDatabaseRecyclingJob(AppDatabase db, ILogger<AppDatabaseRecyclingJob> logger) : IJob
+{
+    public async Task Execute(IJobExecutionContext context)
+    {
+        var now = SystemClock.Instance.GetCurrentInstant();
+
+        logger.LogInformation("Deleting soft-deleted records...");
+
+        var threshold = now - Duration.FromDays(7);
+
+        var entityTypes = db.Model.GetEntityTypes()
+            .Where(t => typeof(ModelBase).IsAssignableFrom(t.ClrType) && t.ClrType != typeof(ModelBase))
+            .Select(t => t.ClrType);
+
+        foreach (var entityType in entityTypes)
+        {
+            var set = (IQueryable)db.GetType().GetMethod(nameof(DbContext.Set), Type.EmptyTypes)!
+                .MakeGenericMethod(entityType).Invoke(db, null)!;
+            var parameter = Expression.Parameter(entityType, "e");
+            var property = Expression.Property(parameter, nameof(ModelBase.DeletedAt));
+            var condition = Expression.LessThan(property, Expression.Constant(threshold, typeof(Instant?)));
+            var notNull = Expression.NotEqual(property, Expression.Constant(null, typeof(Instant?)));
+            var finalCondition = Expression.AndAlso(notNull, condition);
+            var lambda = Expression.Lambda(finalCondition, parameter);
+
+            var queryable = set.Provider.CreateQuery(
+                Expression.Call(
+                    typeof(Queryable),
+                    "Where",
+                    [entityType],
+                    set.Expression,
+                    Expression.Quote(lambda)
+                )
+            );
+
+            var toListAsync = typeof(EntityFrameworkQueryableExtensions)
+                .GetMethod(nameof(EntityFrameworkQueryableExtensions.ToListAsync))!
+                .MakeGenericMethod(entityType);
+
+            var items = await (dynamic)toListAsync.Invoke(null, [queryable, CancellationToken.None])!;
+            db.RemoveRange(items);
+        }
+
+        await db.SaveChangesAsync();
+    }
+}
+
+public class AppDatabaseFactory : IDesignTimeDbContextFactory<AppDatabase>
+{
+    public AppDatabase CreateDbContext(string[] args)
+    {
+        var configuration = new ConfigurationBuilder()
+            .SetBasePath(Directory.GetCurrentDirectory())
+            .AddJsonFile("appsettings.json")
+            .Build();
+
+        var optionsBuilder = new DbContextOptionsBuilder<AppDatabase>();
+        return new AppDatabase(optionsBuilder.Options, configuration);
+    }
+}
+
+public static class OptionalQueryExtensions
+{
+    public static IQueryable<T> If<T>(
+        this IQueryable<T> source,
+        bool condition,
+        Func<IQueryable<T>, IQueryable<T>> transform
+    )
+    {
+        return condition ? transform(source) : source;
+    }
+
+    public static IQueryable<T> If<T, TP>(
+        this IIncludableQueryable<T, TP> source,
+        bool condition,
+        Func<IIncludableQueryable<T, TP>, IQueryable<T>> transform
+    )
+        where T : class
+    {
+        return condition ? transform(source) : source;
+    }
+
+    public static IQueryable<T> If<T, TP>(
+        this IIncludableQueryable<T, IEnumerable<TP>> source,
+        bool condition,
+        Func<IIncludableQueryable<T, IEnumerable<TP>>, IQueryable<T>> transform
+    )
+        where T : class
+    {
+        return condition ? transform(source) : source;
+    }
+}