<?php

namespace Tests\Feature;

use App\Http\Middleware\EnsurePlatformSession;
use App\Models\PosLocation;
use App\Models\PosProduct;
use App\Models\PosSale;
use App\Models\User;
use App\Services\Pay\PayClient;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Http;
use Tests\TestCase;

class PosRegisterTest extends TestCase
{
    use RefreshDatabase;

    private function user(): User
    {
        return User::create([
            'public_id' => 'u-'.uniqid(),
            'name' => 'Cashier',
            'email' => uniqid().'@example.com',
        ]);
    }

    protected function setUp(): void
    {
        parent::setUp();
        $this->withoutMiddleware(EnsurePlatformSession::class);
        $this->withoutVite();

        config([
            'crm.url' => 'https://crm.test/api',
            'crm.key' => 'test-crm-key',
        ]);

        Http::fake([
            'crm.test/api/customers*' => Http::response(['data' => []], 200),
        ]);
    }

    public function test_dashboard_renders_for_signed_in_user(): void
    {
        $this->actingAs($this->user())
            ->get(route('pos.dashboard'))
            ->assertOk()
            ->assertSee('Overview')
            ->assertSee('favicon.ico', false);
    }

    public function test_register_renders_local_products_in_restaurant_mode(): void
    {
        $user = $this->user();
        // ensureDefault() matches owner+name 'Main register'.
        PosLocation::create(['owner_ref' => $user->public_id, 'name' => 'Main register', 'currency' => 'GHS', 'service_style' => 'restaurant']);
        PosProduct::create(['owner_ref' => $user->public_id, 'name' => 'Coffee', 'price_minor' => 1500, 'currency' => 'GHS', 'is_active' => true]);

        $this->actingAs($user)->get(route('pos.register'))->assertOk()->assertSee('Coffee');
    }

    public function test_retail_register_reads_crm_products_and_snapshots_lines(): void
    {
        Http::fake([
            'crm.test/api/products*' => Http::response(['data' => [
                ['id' => 7, 'name' => 'Mug', 'unit_price_minor' => 2500, 'currency' => 'GHS', 'active' => true],
            ]], 200),
            'crm.test/api/customers*' => Http::response(['data' => []], 200),
            'crm.test/api/*' => Http::response(['id' => 1], 201),
        ]);

        $user = $this->user(); // retail by default (no restaurant location)
        $this->actingAs($user)->get(route('pos.register'))->assertOk()->assertSee('Mug');

        // A line built from a CRM product is stored as a snapshot — no local FK.
        $this->actingAs($user)->post(route('pos.register.charge'), [
            'payment_method' => 'cash',
            'lines' => [['product_id' => 7, 'name' => 'Mug', 'unit_price_minor' => 2500, 'quantity' => 1]],
        ])->assertRedirect();

        $line = PosSale::where('owner_ref', $user->public_id)->firstOrFail()->lines()->firstOrFail();
        $this->assertNull($line->product_id);
        $this->assertSame('Mug', $line->name);
        $this->assertSame(2500, $line->unit_price_minor);
    }

    public function test_retail_products_page_lists_crm_products(): void
    {
        Http::fake([
            'crm.test/api/products*' => Http::response(['data' => [
                ['id' => 7, 'name' => 'Mug', 'sku' => 'M1', 'unit_price_minor' => 2500, 'currency' => 'GHS', 'active' => true],
            ]], 200),
        ]);

        $this->actingAs($this->user())->get(route('pos.products.index'))->assertOk()->assertSee('Mug');
    }

    public function test_cash_sale_is_recorded(): void
    {
        $user = $this->user();

        $this->actingAs($user)->post(route('pos.register.charge'), [
            'payment_method' => 'cash',
            'lines' => [
                ['name' => 'Tea', 'unit_price_minor' => 1000, 'quantity' => 2],
            ],
        ])->assertRedirect();

        $sale = PosSale::where('owner_ref', $user->public_id)->first();
        $this->assertNotNull($sale);
        $this->assertSame(PosSale::STATUS_PAID, $sale->status);
        $this->assertSame(PosSale::METHOD_CASH, $sale->payment_method);
        $this->assertSame(2000, $sale->total_minor);
    }

    public function test_pay_sale_redirects_to_checkout(): void
    {
        $user = $this->user();

        $this->mock(PayClient::class, function ($mock) {
            $mock->shouldReceive('createCheckout')->once()->andReturn([
                'id' => 99,
                'reference' => 'LP-TESTREF',
                'checkout_url' => 'https://checkout.paystack.com/test',
            ]);
        });

        $this->actingAs($user)->post(route('pos.register.charge'), [
            'payment_method' => 'pay',
            'lines' => [
                ['name' => 'Snack', 'unit_price_minor' => 500, 'quantity' => 1],
            ],
        ])->assertRedirect('https://checkout.paystack.com/test');

        $sale = PosSale::where('owner_ref', $user->public_id)->first();
        $this->assertSame('LP-TESTREF', $sale->payment_reference);
        $this->assertSame(PosSale::STATUS_PENDING, $sale->status);
    }
}