<?php

namespace Tests\Unit\Business;

use App\Business\StoreReceiptPlatformSkuMapper;
use PHPUnit\Framework\TestCase;

class StoreReceiptPlatformSkuMapperTest extends TestCase
{
    public function test_unique_historical_internal_sku_is_mapped(): void
    {
        $mapper = new StoreReceiptPlatformSkuMapper([
            $this->row('958530694526', '3768947181063635112', '3768947181063635112'),
            $this->row('SG006367N1028V01', 'SG0063', '3768947181063635112'),
            $this->row('SG006367N1028V01', 'SG0063', '3768947181063635112'),
        ]);

        $result = $mapper->resolve('3533103677164802', '3768947181063635112');

        $this->assertSame('unique', $result['status']);
        $this->assertSame('SG006367N1028V01', $result['internal_sku']);
        $this->assertSame(2, $result['history_rows']);
        $this->assertSame(['经典北美黑胡桃色'], $result['internal_properties']);
    }

    public function test_multiple_internal_skus_remain_ambiguous(): void
    {
        $mapper = new StoreReceiptPlatformSkuMapper([
            $this->row('SG001', 'SGSTYLE1', '3768947181063635112'),
            $this->row('SG002', 'SGSTYLE2', '3768947181063635112'),
        ]);

        $result = $mapper->resolve('3533103677164802', '3768947181063635112');

        $this->assertSame('ambiguous', $result['status']);
        $this->assertNull($result['internal_sku']);
        $this->assertSame(['SG001', 'SG002'], $result['candidates']);
    }

    public function test_missing_history_stays_unmapped(): void
    {
        $mapper = new StoreReceiptPlatformSkuMapper([
            $this->row('958530694526', '3768947181063635112', '3768947181063635112'),
        ]);

        $result = $mapper->resolve('3533103677164802', '3768947181063635112');

        $this->assertSame('missing', $result['status']);
        $this->assertNull($result['internal_sku']);
        $this->assertSame([], $result['candidates']);
    }

    public function test_mapping_requires_the_same_platform_spec_id(): void
    {
        $mapper = new StoreReceiptPlatformSkuMapper([
            $this->row(
                'SG006367N1028V01',
                'SG0063',
                '3768947181063635112',
                '3533103677164802',
            ),
        ]);

        $result = $mapper->resolve('3533103677164999', '3768947181063635112');

        $this->assertSame('missing', $result['status']);
        $this->assertNull($result['internal_sku']);
    }

    /** @return array<string,string> */
    private function row(
        string $skuId,
        string $itemId,
        string $shopItemId,
        string $shopSkuId = '3533103677164802',
    ): array
    {
        return [
            'shop_sku_id' => $shopSkuId,
            'shop_i_id' => $shopItemId,
            'sku_id' => $skuId,
            'i_id' => $itemId,
            'properties_value' => $itemId === 'SG0063' ? '经典北美黑胡桃色' : '',
        ];
    }
}