<?php

namespace Tests\Feature;

use App\Http\Middleware\EnsurePlatformSession;
use App\Models\Pos\ProSubscription;
use App\Models\User;
use App\Services\Pos\SubscriptionService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Http;
use Tests\TestCase;

class PosProTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        $this->withoutMiddleware(EnsurePlatformSession::class);
        config([
            'billing.api_url' => 'https://ladill.com/api/billing',
            'billing.api_key' => 'pos-billing-key',
            'pos.pro.enabled' => true,
            'pos.pro.price_minor' => 7900,
            'pos.plans.pro.price_minor' => 7900,
            'pos.plans.enterprise.price_minor' => 24900,
            'pay.api_url' => 'https://ladill.com/api/pay',
            'pay.api_key' => 'pos-pay-key',
        ]);
    }

    private function user(): User
    {
        return User::factory()->create(['public_id' => 'usr_'.uniqid()]);
    }

    public function test_subscribe_charges_wallet_and_activates(): void
    {
        Http::fake(['*/debit' => Http::response(['id' => 1], 201)]);
        $user = $this->user();
        $svc = app(SubscriptionService::class);

        [$ok] = $svc->subscribe($user);

        $this->assertTrue($ok);
        $this->assertTrue($svc->isPro($user));
        Http::assertSent(fn ($r) => str_contains($r->url(), '/debit') && $r['service'] === 'pos');
    }

    public function test_free_user_cannot_use_restaurant_mode(): void
    {
        $this->assertFalse(app(SubscriptionService::class)->canUseRestaurantMode($this->user()));
    }

    public function test_free_user_cannot_use_payment_gateway(): void
    {
        $user = $this->user();
        $svc = app(SubscriptionService::class);

        $this->assertFalse($svc->canUsePaymentGateway($user));
        $this->assertFalse(app(\App\Services\Payments\MerchantGatewayService::class)->isConfigured($user));
    }

    public function test_pro_user_can_use_payment_gateway_when_configured(): void
    {
        Http::fake(['*/debit' => Http::response(['id' => 1], 201)]);
        $user = $this->user();
        $svc = app(SubscriptionService::class);
        $svc->subscribe($user);

        \App\Models\PaymentGatewaySetting::create([
            'owner_ref' => $user->public_id,
            'provider' => \App\Models\PaymentGatewaySetting::PROVIDER_PAYSTACK,
            'public_key' => 'pk_test',
            'secret_key' => 'sk_test',
            'is_active' => true,
        ]);

        $this->assertTrue($svc->canUsePaymentGateway($user));
        $this->assertTrue(app(\App\Services\Payments\MerchantGatewayService::class)->isConfigured($user));
    }

    public function test_free_user_settings_ignores_gateway_credentials(): void
    {
        $user = $this->user();
        \App\Models\PosLocation::create([
            'owner_ref' => $user->public_id,
            'name' => 'Main',
            'currency' => 'GHS',
        ]);

        $this->actingAs($user)
            ->put(route('pos.settings.update'), [
                'name' => 'Main',
                'currency' => 'GHS',
                'service_style' => 'retail',
                'printer_paper_mm' => 80,
                'gateway_provider' => \App\Models\PaymentGatewaySetting::PROVIDER_PAYSTACK,
                'gateway_public_key' => 'pk_free_blocked',
                'gateway_secret_key' => 'sk_free_blocked',
                'gateway_is_active' => '1',
            ])
            ->assertRedirect()
            ->assertSessionHas('success');

        $this->assertNull(
            \App\Models\PaymentGatewaySetting::query()->where('owner_ref', $user->public_id)->first()
        );
    }

    public function test_free_and_invalid_owner_gateway_fall_back_to_ladill_pay(): void
    {
        Http::fake(['*/api/pay/checkouts' => Http::response([
            'reference' => 'LP-POS-FALLBACK',
            'checkout_url' => 'https://checkout.paystack.com/fallback',
        ], 201)]);
        $user = $this->user();
        \App\Models\PaymentGatewaySetting::create([
            'owner_ref' => $user->public_id,
            'provider' => 'paystack',
            'public_key' => 'invalid',
            'secret_key' => 'invalid',
            'is_active' => true,
        ]);

        $result = app(\App\Services\Payments\MerchantGatewayService::class)->initializeCheckout(
            $user, 1000, 'GHS', 'seller@example.com', 'https://pos.test/callback', 'POSP-OLD',
        );

        $this->assertSame('ladill_pay', $result['provider']);
        $this->assertSame('LP-POS-FALLBACK', $result['reference']);
    }

    public function test_downgrade_disables_owner_gateway_without_deleting_credentials(): void
    {
        $user = $this->user();
        ProSubscription::create([
            'user_id' => $user->id, 'plan' => 'pro', 'status' => 'active',
            'price_minor' => 7900, 'current_period_end' => now()->addMonth(),
        ]);
        $setting = \App\Models\PaymentGatewaySetting::create([
            'owner_ref' => $user->public_id, 'provider' => 'paystack',
            'public_key' => 'pk_test_saved', 'secret_key' => 'sk_test_saved', 'is_active' => true,
        ]);
        $this->assertTrue(app(\App\Services\Payments\MerchantGatewayService::class)->shouldUseOwnerGateway($user));

        ProSubscription::where('user_id', $user->id)->update(['status' => 'past_due']);

        $this->assertFalse(app(\App\Services\Payments\MerchantGatewayService::class)->shouldUseOwnerGateway($user->fresh()));
        $this->assertDatabaseHas('payment_gateway_settings', ['id' => $setting->id, 'is_active' => true]);
    }

    public function test_subscribe_enterprise_charges_wallet_and_activates(): void
    {
        Http::fake(['*/debit' => Http::response(['id' => 1], 201)]);
        $user = $this->user();
        $svc = app(SubscriptionService::class);

        [$ok] = $svc->subscribeEnterprise($user);

        $this->assertTrue($ok);
        $this->assertTrue($svc->isEnterprise($user));
        $sub = ProSubscription::where('user_id', $user->id)->first();
        $this->assertSame('enterprise', $sub->plan);
        $this->assertSame(24900, $sub->price_minor);
    }

    public function test_renew_suspends_after_grace_when_unpaid(): void
    {
        Http::fake(['*/debit' => Http::response(['balance_minor' => 0], 402)]);
        $user = $this->user();
        $sub = ProSubscription::create([
            'user_id' => $user->id, 'status' => 'active', 'price_minor' => 7900,
            'auto_renew' => true, 'started_at' => now()->subDays(40),
            'current_period_end' => now()->subDays(5),
        ]);

        app(SubscriptionService::class)->renewIfDue($sub->fresh());

        $this->assertSame('past_due', $sub->fresh()->status);
    }
}