bot-28/database/migrations/2026_10_26_100000_create_announcements.php

<?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('announcements', function (Blueprint $table) {
            $table->engine = 'InnoDB';
            $table->id();
            $table->string('category', 16);
            $table->json('publish_platforms');
            $table->string('display_frequency', 24)->default('daily_first_login');
            $table->dateTime('publish_at');
            $table->dateTime('end_at')->nullable();
            $table->unsignedTinyInteger('status')->default(1);
            $table->string('click_type', 16)->default('none');
            $table->string('link', 2048)->nullable();
            $table->unsignedBigInteger('activity_id')->nullable();
            $table->unsignedBigInteger('sender_id');
            $table->string('sender_name', 100);
            $table->timestamps();
            $table->index(['status', 'publish_at'], 'announcement_publication');
            $table->index('end_at');
        });
        Schema::create('announcement_translations', function (Blueprint $table) {
            $table->engine = 'InnoDB'; $table->id(); $table->unsignedBigInteger('announcement_id');
            $table->string('language', 8); $table->string('title', 200); $table->mediumText('content');
            $table->unique(['announcement_id', 'language'], 'announcement_translation');
        });
    }

    public function down(): void
    {
        Schema::dropIfExists('announcement_translations'); Schema::dropIfExists('announcements');
    }
};