<?php

namespace Tests\Feature;

use App\Models\Merchant;
use App\Models\Plan;
use App\Models\PlatformOrder;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class AdminPlatformOrderExportLedgerTest extends TestCase
{
    use RefreshDatabase;

    protected function loginAsPlatformAdmin(): void
    {
        $this->seed();

        $this->post('/admin/login', [
            'email' => 'platform.admin@demo.local',
            'password' => 'Platform@123456',
        ])->assertRedirect('/admin');
    }

    public function test_export_ledger_should_download_csv_with_bom_and_headers(): void
    {
        $this->loginAsPlatformAdmin();

        $merchant = Merchant::query()->firstOrFail();
        $plan = Plan::query()->create([
            'code' => 'po_export_ledger_plan',
            'name' => '平台订单导出对账明细测试套餐',
            'billing_cycle' => 'monthly',
            'price' => 10,
            'list_price' => 10,
            'status' => 'active',
            'sort' => 10,
            'published_at' => now(),
        ]);

        $order = PlatformOrder::query()->create([
            'merchant_id' => $merchant->id,
            'plan_id' => $plan->id,
            'order_no' => 'PO_EXPORT_LEDGER_0001',
            'order_type' => 'new_purchase',
            'status' => 'pending',
            'payment_status' => 'unpaid',
            'plan_name' => $plan->name,
            'billing_cycle' => $plan->billing_cycle,
            'period_months' => 1,
            'quantity' => 1,
            'payable_amount' => 10,
            'paid_amount' => 0,
            'placed_at' => now(),
            'meta' => [
                'payment_receipts' => [
                    [
                        'type' => 'bank_transfer',
                        'channel' => 'offline',
                        'amount' => 10,
                        'paid_at' => now()->toDateTimeString(),
                        'note' => 'test-pay',
                        'created_at' => now()->toDateTimeString(),
                        'admin_id' => 1,
                    ],
                ],
                'refund_receipts' => [
                    [
                        'type' => 'refund',
                        'channel' => 'offline',
                        'amount' => 1,
                        'refunded_at' => now()->toDateTimeString(),
                        'note' => 'test-refund',
                        'created_at' => now()->toDateTimeString(),
                        'admin_id' => 1,
                    ],
                ],
            ],
        ]);

        $res = $this->get('/admin/platform-orders/' . $order->id . '/export-ledger?download=1');
        $res->assertOk();

        $content = $res->streamedContent();

        $res2 = $this->get('/admin/platform-orders/' . $order->id . '/export-ledger?download=1&include_order_snapshot=1');
        $res2->assertOk();

        $content2 = $res2->streamedContent();

        // UTF-8 BOM
        $this->assertStringStartsWith("\xEF\xBB\xBF", $content);
        $this->assertStringStartsWith("\xEF\xBB\xBF", $content2);

        // exported_at 摘要行
        $this->assertStringContainsString('exported_at,', $content);
        $this->assertStringContainsString('exported_at,', $content2);

        // 核心表头
        $this->assertStringContainsString('record_type,receipt_type,channel,amount,biz_time,created_at,admin_id,note', $content);
        $this->assertStringContainsString('record_type,receipt_type,channel,amount,biz_time,created_at,admin_id,note', $content2);

        // 至少包含一条 payment 与一条 refund 行（包含 type 字段）
        $this->assertStringContainsString('payment,bank_transfer,offline,10', $content);
        $this->assertStringContainsString('refund,refund,offline,1', $content);

        // include_order_snapshot=1 时应包含更多摘要字段
        $this->assertStringContainsString("merchant_id,{$merchant->id}", $content2);
        $this->assertStringContainsString('payment_status,unpaid', $content2);
        $this->assertStringContainsString('site_subscription_id,', $content2);

        // 对账/退款汇总字段
        $this->assertStringContainsString('receipt_total,10.00', $content2);
        $this->assertStringContainsString('refund_total,1.00', $content2);
        $this->assertStringContainsString('reconcile_delta,10.00', $content2);
        $this->assertStringContainsString('amount_tolerance,0.01', $content2);
        $this->assertStringContainsString('reconcile_mismatch,1', $content2);
        $this->assertStringContainsString('refund_inconsistent,0', $content2);

        // 口径说明行（便于离线流转自解释）
        $this->assertStringContainsString('reconcile_mismatch_rule,', $content2);
        $this->assertStringContainsString('refund_inconsistent_rule,', $content2);
    }

    public function test_show_page_should_render_export_ledger_link(): void
    {
        $this->loginAsPlatformAdmin();

        $merchant = Merchant::query()->firstOrFail();
        $plan = Plan::query()->create([
            'code' => 'po_export_ledger_link_plan',
            'name' => '平台订单详情导出对账明细链接测试套餐',
            'billing_cycle' => 'monthly',
            'price' => 10,
            'list_price' => 10,
            'status' => 'active',
            'sort' => 10,
            'published_at' => now(),
        ]);

        $order = PlatformOrder::query()->create([
            'merchant_id' => $merchant->id,
            'plan_id' => $plan->id,
            'order_no' => 'PO_EXPORT_LEDGER_LINK_0001',
            'order_type' => 'new_purchase',
            'status' => 'pending',
            'payment_status' => 'unpaid',
            'plan_name' => $plan->name,
            'billing_cycle' => $plan->billing_cycle,
            'period_months' => 1,
            'quantity' => 1,
            'payable_amount' => 10,
            'paid_amount' => 0,
            'placed_at' => now(),
            'meta' => [],
        ]);

        $res = $this->get('/admin/platform-orders/' . $order->id);
        $res->assertOk();

        $html = $res->getContent();

        // 页面应包含两条导出链接（解析 HTML，按 query 键值断言，避免参数顺序导致脆弱）
        preg_match_all('/href="([^"]+)"/', $html, $matches);
        $hrefs = $matches[1] ?? [];

        $exportUrls = array_values(array_filter($hrefs, fn ($u) => str_contains($u, '/admin/platform-orders/' . $order->id . '/export-ledger')));
        $this->assertGreaterThanOrEqual(2, count($exportUrls));

        $foundBase = false;
        $foundWithSnapshot = false;

        foreach ($exportUrls as $u) {
            $parts = parse_url($u);
            parse_str($parts['query'] ?? '', $q);

            if (($q['download'] ?? null) === '1' && !isset($q['include_order_snapshot'])) {
                $foundBase = true;
            }

            if (($q['download'] ?? null) === '1' && (string)($q['include_order_snapshot'] ?? '') === '1') {
                $foundWithSnapshot = true;
            }
        }

        $this->assertTrue($foundBase, '未找到 download=1 的基础导出链接');
        $this->assertTrue($foundWithSnapshot, '未找到 download=1 且 include_order_snapshot=1 的导出链接');

        $res->assertSee('导出对账明细（CSV）', false);
        $res->assertSee('导出含订单摘要（CSV）', false);

        // 导出链接应新开窗口，避免离开当前详情页
        $res->assertSee('target="_blank"', false);
    }
}