<?php

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

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
		Schema::table('files', function (Blueprint $table) {
			$table->dropUnique(['filearea_id','name']);
			$table->string('replaces')->nullable();
		});

		DB::statement("CREATE UNIQUE INDEX files_active ON files (filearea_id, name) WHERE deleted_at IS NULL");
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
		DB::statement("DROP INDEX files_active");

		Schema::table('files', function (Blueprint $table) {
			$table->unique(['filearea_id','name']);
			$table->dropColumn('replaces');
		});
    }
};