<?php

namespace Tests\Unit\Requests;

use App\Http\Requests\StoreMafOrderRequest;
use Illuminate\Support\Facades\Validator;
use Tests\TestCase;

class StoreMafOrderRequestTest extends TestCase
{
    public function test_empty_data_fails_because_product_id_and_quantity_are_required(): void
    {
        $request = new StoreMafOrderRequest();
        $validator = Validator::make([], $request->rules());
        $this->assertTrue($validator->fails());
    }

    public function test_missing_product_id_fails(): void
    {
        $data = [
            'quantity' => 2,
        ];
        $request = new StoreMafOrderRequest();
        $validator = Validator::make($data, $request->rules());
        $this->assertTrue($validator->fails());
        $this->assertArrayHasKey('product_id', $validator->errors()->toArray());
    }

    public function test_missing_quantity_fails(): void
    {
        $data = [
            'product_id' => 1,
        ];
        $rules = (new StoreMafOrderRequest())->rules();
        // Remove exists rule to isolate required check without DB
        $rules['product_id'] = 'required';
        $validator = Validator::make($data, $rules);
        $this->assertTrue($validator->fails());
        $this->assertArrayHasKey('quantity', $validator->errors()->toArray());
    }

    public function test_quantity_below_min_fails(): void
    {
        $data = [
            'product_id' => 1,
            'quantity'   => 0,
        ];
        $rules = (new StoreMafOrderRequest())->rules();
        $rules['product_id'] = 'required';
        $validator = Validator::make($data, $rules);
        $this->assertTrue($validator->fails());
        $this->assertArrayHasKey('quantity', $validator->errors()->toArray());
    }

    public function test_quantity_must_be_integer(): void
    {
        $data = [
            'product_id' => 1,
            'quantity'   => 'abc',
        ];
        $rules = (new StoreMafOrderRequest())->rules();
        $rules['product_id'] = 'required';
        $validator = Validator::make($data, $rules);
        $this->assertTrue($validator->fails());
        $this->assertArrayHasKey('quantity', $validator->errors()->toArray());
    }

    public function test_in_stock_below_zero_fails(): void
    {
        $data = [
            'product_id' => 1,
            'quantity'   => 2,
            'in_stock'   => -1,
        ];
        $rules = (new StoreMafOrderRequest())->rules();
        $rules['product_id'] = 'required';
        $validator = Validator::make($data, $rules);
        $this->assertTrue($validator->fails());
        $this->assertArrayHasKey('in_stock', $validator->errors()->toArray());
    }

    public function test_valid_data_passes_required_and_type_rules(): void
    {
        $data = [
            'product_id'   => 1,
            'quantity'     => 3,
            'in_stock'     => 0,
            'order_number' => 'ORD-2026-001',
        ];
        // Strip exists rules to test all other constraints without DB
        $rules = (new StoreMafOrderRequest())->rules();
        $rules['product_id'] = 'required';
        $validator = Validator::make($data, $rules);
        $this->assertFalse($validator->fails());
    }

    public function test_optional_order_number_accepts_null(): void
    {
        $data = [
            'product_id'   => 1,
            'quantity'     => 1,
            'order_number' => null,
        ];
        $rules = (new StoreMafOrderRequest())->rules();
        $rules['product_id'] = 'required';
        $validator = Validator::make($data, $rules);
        $errors = $validator->errors()->toArray();
        $this->assertArrayNotHasKey('order_number', $errors);
    }
}