<?php

namespace Tests\Unit;

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

class PlatformOrderRefundInconsistentTest extends TestCase
{
    use RefreshDatabase;

    public function test_refund_total_can_fallback_to_refund_receipts_sum_when_refund_summary_missing(): void
    {
        $merchant = Merchant::query()->create([
            'name' => '单测站点',
            'slug' => 'unit-test-merchant',
            'status' => 'active',
        ]);

        $plan = Plan::query()->create([
            'code' => 'unit_test_plan_refund_total',
            'name' => '单测套餐',
            '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_UNIT_REFUND_TOTAL_0001',
            'order_type' => 'subscription',
            'status' => 'activated',
            'payment_status' => 'paid',
            'plan_name' => 'Unit Test Plan',
            'billing_cycle' => 'monthly',
            'period_months' => 1,
            'quantity' => 1,
            'payable_amount' => 10,
            'paid_amount' => 10,
            'placed_at' => now(),
            'meta' => [
                'refund_receipts' => [
                    ['amount' => 3.20],
                    ['amount' => 1.30],
                ],
            ],
        ]);

        $this->assertEquals(4.50, $order->refundTotal());
    }

    public function test_is_refund_inconsistent_when_status_refunded_but_refund_total_is_less_than_paid_amount(): void
    {
        $merchant = Merchant::query()->create([
            'name' => '单测站点2',
            'slug' => 'unit-test-merchant-2',
            'status' => 'active',
        ]);

        $plan = Plan::query()->create([
            'code' => 'unit_test_plan_refund_inconsistent_1',
            'name' => '单测套餐2',
            '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_UNIT_REFUND_INCONSISTENT_0001',
            'order_type' => 'subscription',
            'status' => 'activated',
            'payment_status' => 'refunded',
            'plan_name' => 'Unit Test Plan',
            'billing_cycle' => 'monthly',
            'period_months' => 1,
            'quantity' => 1,
            'payable_amount' => 10,
            'paid_amount' => 10,
            'placed_at' => now(),
            'meta' => [
                'refund_summary' => [
                    'total_amount' => 9.98,
                ],
            ],
        ]);

        // refunded 状态下：只有当退款总额 + 容差 < 已付金额 才算不一致。
        // 这里 refund_total=9.98、paid=10.00，差额 0.02 > 默认容差 0.01，因此应判定为不一致。
        $this->assertTrue($order->isRefundInconsistent());
    }

    public function test_is_refund_inconsistent_when_status_not_refunded_but_refund_total_reaches_paid_amount_plus_tolerance(): void
    {
        $merchant = Merchant::query()->create([
            'name' => '单测站点3',
            'slug' => 'unit-test-merchant-3',
            'status' => 'active',
        ]);

        $plan = Plan::query()->create([
            'code' => 'unit_test_plan_refund_inconsistent_2',
            'name' => '单测套餐3',
            '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_UNIT_REFUND_INCONSISTENT_0002',
            'order_type' => 'subscription',
            'status' => 'activated',
            'payment_status' => 'paid',
            'plan_name' => 'Unit Test Plan',
            'billing_cycle' => 'monthly',
            'period_months' => 1,
            'quantity' => 1,
            'payable_amount' => 10,
            'paid_amount' => 10,
            'placed_at' => now(),
            'meta' => [
                'refund_summary' => [
                    'total_amount' => 10.00,
                ],
            ],
        ]);

        // paid（非 refunded）状态下：只有当退款总额 >= 已付金额 + 容差 才算不一致。
        // 这里 refund_total=10.00 与 paid=10.00 相等，未达到 paid + 0.01，因此不应判定不一致。
        $this->assertFalse($order->isRefundInconsistent());
    }
}
