<?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('notifications', function (Blueprint $table) {
            $table->id();
            $table->foreignId('user_id')->nullable()->constrained()->cascadeOnDelete();
            $table->string('type'); // violation_recorded, sp_generated, threshold_reached
            $table->string('title');
            $table->text('body')->nullable();
            $table->json('data')->nullable();
            $table->string('icon')->nullable();
            $table->string('color')->nullable();
            $table->string('action_url')->nullable();
            $table->boolean('is_read')->default(false);
            $table->timestamp('read_at')->nullable();
            $table->foreignId('violation_id')->nullable()->constrained()->nullOnDelete();
            $table->foreignId('sp_letter_id')->nullable()->constrained('sp_letters')->nullOnDelete();
            $table->timestamps();

            $table->index(['user_id', 'is_read']);
            $table->index('created_at');
        });
    }

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