<?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('warehouse_requests', function (Blueprint $table) {
            $table->id();
            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
            $table->foreignId('warehouse_id')->constrained()->restrictOnDelete();
            $table->foreignId('cost_center_id')->constrained()->restrictOnDelete();
            $table->string('work_context_key')->default('procurement.internal');
            $table->uuid('operation_key');
            $table->string('input_hash', 64);
            $table->string('status')->default('draft');
            $table->json('snapshot');
            $table->timestampTz('created_at');
            $table->unique(['tenant_id', 'created_by', 'operation_key']);
        });
    }

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