Add broadcast scheduling features: implement Show and Channel entities, enhance AppDbContext and DependencyInjection for broadcasting, and update API routing. Include migration for new database schema and update documentation for broadcast-related functionalities.

backend/src/TeleWave.Infrastructure/Persistence/AppDbContext.cs

@@ -2,6 +2,8 @@ using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore;
 using TeleWave.Application.Common.Interfaces;
 using TeleWave.Domain.Auth;
+using TeleWave.Domain.Broadcast;
+using TeleWave.Domain.Library;
 using TeleWave.Domain.Media;
 using TeleWave.Infrastructure.Identity;
 
@@ -17,6 +19,9 @@ public class AppDbContext(DbContextOptions<AppDbContext> options)
 {
     public DbSet<RefreshToken> RefreshTokens => Set<RefreshToken>();
     public DbSet<MediaAsset> MediaAssets => Set<MediaAsset>();
+    public DbSet<Show> Shows => Set<Show>();
+    public DbSet<Channel> Channels => Set<Channel>();
+    public DbSet<ScheduleEntry> ScheduleEntries => Set<ScheduleEntry>();
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {

backend/src/TeleWave.Infrastructure/Persistence/Configurations/ChannelConfiguration.cs

@@ -0,0 +1,68 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using TeleWave.Domain.Broadcast;
+
+namespace TeleWave.Infrastructure.Persistence.Configurations;
+
+public class ChannelConfiguration : IEntityTypeConfiguration<Channel>
+{
+    public void Configure(EntityTypeBuilder<Channel> builder)
+    {
+        builder.Property(x => x.Name).IsRequired().HasMaxLength(256);
+        builder.Property(x => x.Slug).IsRequired().HasMaxLength(128);
+        builder.HasIndex(x => x.Slug).IsUnique();
+
+        builder
+            .HasMany(x => x.Shows)
+            .WithOne()
+            .HasForeignKey(s => s.ChannelId)
+            .OnDelete(DeleteBehavior.Cascade);
+        builder.Navigation(x => x.Shows).UsePropertyAccessMode(PropertyAccessMode.Field);
+
+        builder
+            .HasMany(x => x.Ads)
+            .WithOne()
+            .HasForeignKey(a => a.ChannelId)
+            .OnDelete(DeleteBehavior.Cascade);
+        builder.Navigation(x => x.Ads).UsePropertyAccessMode(PropertyAccessMode.Field);
+
+        builder
+            .HasMany(x => x.Overrides)
+            .WithOne()
+            .HasForeignKey(o => o.ChannelId)
+            .OnDelete(DeleteBehavior.Cascade);
+        builder.Navigation(x => x.Overrides).UsePropertyAccessMode(PropertyAccessMode.Field);
+    }
+}
+
+public class ChannelShowConfiguration : IEntityTypeConfiguration<ChannelShow>
+{
+    public void Configure(EntityTypeBuilder<ChannelShow> builder)
+    {
+        builder.HasIndex(x => new { x.ChannelId, x.ShowId });
+    }
+}
+
+public class ChannelAdConfiguration : IEntityTypeConfiguration<ChannelAd>
+{
+    public void Configure(EntityTypeBuilder<ChannelAd> builder)
+    {
+        builder.HasIndex(x => new { x.ChannelId, x.Position });
+    }
+}
+
+public class ProgrammingOverrideConfiguration : IEntityTypeConfiguration<ProgrammingOverride>
+{
+    public void Configure(EntityTypeBuilder<ProgrammingOverride> builder)
+    {
+        builder.HasIndex(x => new { x.ChannelId, x.StartsAtUtc, x.EndsAtUtc });
+
+        builder
+            .HasMany(x => x.Shows)
+            .WithOne()
+            .HasForeignKey(s => s.ProgrammingOverrideId)
+            .OnDelete(DeleteBehavior.Cascade);
+        builder.Navigation(x => x.Shows).UsePropertyAccessMode(PropertyAccessMode.Field);
+    }
+}

backend/src/TeleWave.Infrastructure/Persistence/Configurations/ScheduleEntryConfiguration.cs

@@ -0,0 +1,16 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using TeleWave.Domain.Broadcast;
+
+namespace TeleWave.Infrastructure.Persistence.Configurations;
+
+public class ScheduleEntryConfiguration : IEntityTypeConfiguration<ScheduleEntry>
+{
+    public void Configure(EntityTypeBuilder<ScheduleEntry> builder)
+    {
+        // Основные запросы эфира/EPG — по каналу и времени.
+        builder.HasIndex(x => new { x.ChannelId, x.StartsAtUtc });
+        builder.HasIndex(x => new { x.ChannelId, x.EndsAtUtc });
+        builder.HasIndex(x => new { x.ChannelId, x.ShowId });
+    }
+}

backend/src/TeleWave.Infrastructure/Persistence/Configurations/ShowConfiguration.cs

@@ -0,0 +1,31 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using TeleWave.Domain.Library;
+
+namespace TeleWave.Infrastructure.Persistence.Configurations;
+
+public class ShowConfiguration : IEntityTypeConfiguration<Show>
+{
+    public void Configure(EntityTypeBuilder<Show> builder)
+    {
+        builder.Property(x => x.Name).IsRequired().HasMaxLength(256);
+        builder.Property(x => x.Description).HasMaxLength(2048);
+
+        builder
+            .HasMany(x => x.Episodes)
+            .WithOne()
+            .HasForeignKey(e => e.ShowId)
+            .OnDelete(DeleteBehavior.Cascade);
+        builder.Navigation(x => x.Episodes).UsePropertyAccessMode(PropertyAccessMode.Field);
+    }
+}
+
+public class ShowEpisodeConfiguration : IEntityTypeConfiguration<ShowEpisode>
+{
+    public void Configure(EntityTypeBuilder<ShowEpisode> builder)
+    {
+        builder.HasIndex(x => new { x.ShowId, x.Position });
+        builder.HasIndex(x => x.MediaAssetId);
+    }
+}