<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    public function up(): void
    {
        Schema::create('categories', function (Blueprint $table) {
            $table->id();
            $table->string('name')->unique();
            $table->string('slug')->unique();
            $table->text('description')->nullable();
            $table->timestamps();
        });

        Schema::create('channels', function (Blueprint $table) {
            $table->id();
            $table->foreignId('user_id')->unique()->constrained()->cascadeOnDelete();
            $table->foreignId('category_id')->nullable()->constrained()->nullOnDelete();
            $table->unsignedBigInteger('live_broadcast_id')->nullable()->index();
            $table->string('slug')->unique();
            $table->string('display_name');
            $table->text('description')->nullable();
            $table->string('avatar_path')->nullable();
            $table->string('banner_path')->nullable();
            $table->string('thumbnail_path')->nullable();
            $table->boolean('is_live')->default(false)->index();
            $table->unsignedInteger('viewer_count')->default(0);
            $table->timestamp('suspended_at')->nullable()->index();
            $table->timestamps();
        });

        Schema::create('stream_keys', function (Blueprint $table) {
            $table->id();
            $table->foreignId('channel_id')->unique()->constrained()->cascadeOnDelete();
            $table->string('key_hash');
            $table->timestamp('last_used_at')->nullable();
            $table->timestamp('revoked_at')->nullable()->index();
            $table->timestamps();
        });

        Schema::create('broadcasts', function (Blueprint $table) {
            $table->id();
            $table->foreignId('channel_id')->constrained()->cascadeOnDelete();
            $table->string('title');
            $table->string('status')->default('pending')->index();
            $table->boolean('recording_enabled')->default(false);
            $table->string('mediamtx_path')->nullable()->index();
            $table->string('source_type')->nullable();
            $table->string('source_id')->nullable();
            $table->string('hls_url')->nullable();
            $table->unsignedInteger('viewer_peak')->default(0);
            $table->timestamp('started_at')->nullable()->index();
            $table->timestamp('ended_at')->nullable()->index();
            $table->timestamps();
        });

        Schema::create('vods', function (Blueprint $table) {
            $table->id();
            $table->foreignId('broadcast_id')->unique()->constrained()->cascadeOnDelete();
            $table->foreignId('channel_id')->constrained()->cascadeOnDelete();
            $table->string('title');
            $table->string('storage_path');
            $table->string('playback_url')->nullable();
            $table->unsignedInteger('duration_seconds')->nullable();
            $table->unsignedBigInteger('size_bytes')->nullable();
            $table->timestamp('published_at')->nullable()->index();
            $table->timestamp('expires_at')->nullable()->index();
            $table->softDeletes();
            $table->timestamps();
        });

        Schema::create('follows', function (Blueprint $table) {
            $table->id();
            $table->foreignId('channel_id')->constrained()->cascadeOnDelete();
            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
            $table->timestamps();

            $table->unique(['channel_id', 'user_id']);
        });

        Schema::create('chat_messages', function (Blueprint $table) {
            $table->id();
            $table->foreignId('channel_id')->constrained()->cascadeOnDelete();
            $table->foreignId('broadcast_id')->nullable()->constrained()->nullOnDelete();
            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
            $table->string('body', 500);
            $table->softDeletes();
            $table->timestamps();
        });

        Schema::create('admin_audit_logs', function (Blueprint $table) {
            $table->id();
            $table->foreignId('admin_user_id')->nullable()->constrained('users')->nullOnDelete();
            $table->string('subject_type');
            $table->unsignedBigInteger('subject_id');
            $table->string('action');
            $table->json('metadata')->nullable();
            $table->timestamp('created_at')->nullable();

            $table->index(['subject_type', 'subject_id']);
        });
    }

    public function down(): void
    {
        Schema::dropIfExists('admin_audit_logs');
        Schema::dropIfExists('chat_messages');
        Schema::dropIfExists('follows');
        Schema::dropIfExists('vods');
        Schema::dropIfExists('broadcasts');
        Schema::dropIfExists('stream_keys');
        Schema::dropIfExists('channels');
        Schema::dropIfExists('categories');
    }
};