<?php

use App\Http\Controllers\Api\ShoppingUserController;
use App\Models\Country;
use App\Models\Product;
use App\Models\Shipping;
use App\Models\ShippingCountry;
use App\Models\ShippingPrice;
use App\Models\ShoppingUser;
use App\Models\UserAccount;
use App\Models\UserShop;
use App\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Mail;
use Tests\TestCase;

uses(TestCase::class, RefreshDatabase::class);

/**
 * Versandumgebung für API-Bestellungen: DE mit Gewichtsstufe 1–1000 g (4,90 €)
 * und optionalem Versandkostenfrei-Schwellenwert auf der Shipping-Konfiguration.
 */
function makeApiShopEnv(?int $freeThreshold): array
{
    $country = Country::create([
        'code' => 'DE', 'phone' => '49', 'en' => 'Germany', 'de' => 'Deutschland',
        'es' => 'Alemania', 'fr' => 'Allemagne', 'it' => 'Germania', 'ru' => 'Германия',
    ]);
    $shipping = Shipping::create(['name' => 'DEUTSCHLAND', 'active' => true, 'free' => $freeThreshold ?? '']);
    ShippingPrice::create([
        'shipping_id' => $shipping->id, 'price' => 4.90, 'price_comp' => 0, 'num_comp' => 0,
        'tax_rate' => 19, 'weight_from' => 1, 'weight_to' => 1000,
    ]);
    $shippingCountry = ShippingCountry::create(['shipping_id' => $shipping->id, 'country_id' => $country->id]);

    return [$country, $shippingCountry];
}

function makeApiOrderEnv(?int $freeThreshold = 80): ShoppingUser
{
    [$country] = makeApiShopEnv($freeThreshold);

    $account = UserAccount::create(['m_first_name' => 'Mia', 'm_last_name' => 'Vita', 'country_id' => $country->id]);
    $member = User::forceCreate([
        'email' => 'member-'.uniqid('', true).'@example.com',
        'password' => bcrypt('secret'),
        'lang' => 'de',
        'account_id' => $account->id,
    ]);
    UserShop::create(['user_id' => $member->id, 'name' => 'Shop-'.uniqid('', true), 'active' => true]);

    $apiUser = User::forceCreate([
        'email' => 'api-'.uniqid('', true).'@example.com',
        'password' => bcrypt('secret'),
        'lang' => 'de',
        'm_sponsor' => $member->id,
    ]);
    test()->actingAs($apiUser);

    return ShoppingUser::create([
        'member_id' => $member->id,
        'auth_user_id' => 0,
        'number' => 1,
        'billing_firstname' => 'Max',
        'billing_lastname' => 'Muster',
        'billing_address' => 'Musterstr. 1',
        'billing_zipcode' => '12345',
        'billing_city' => 'Berlin',
        'billing_country_id' => $country->id,
        'billing_email' => 'kunde@example.com',
        'shipping_country_id' => $country->id,
        'same_as_billing' => true,
        'wp_order_number' => 424242,
        'mode' => 'dev',
    ]);
}

function makeApiProduct(float $price, int $weight = 500, bool $noFreeShipping = false): Product
{
    $now = now();
    $id = (int) DB::table('products')->insertGetId([
        'name' => 'P-'.uniqid('', true),
        'title' => 'Produkt',
        'active' => true,
        'price' => $price,
        'tax' => 19,
        'weight' => $weight,
        'points' => 7,
        'wp_number' => random_int(10000, 99999999),
        'no_free_shipping' => $noFreeShipping,
        'show_on' => json_encode(['2']),
        'created_at' => $now,
        'updated_at' => $now,
    ]);

    return Product::findOrFail($id);
}

function callApiPrepareOrder(ShoppingUser $shoppingUser, array $items): void
{
    Mail::fake();
    $wpOrder = array_map(fn (Product $product) => [
        'article' => $product->wp_number,
        'qty' => 1,
        'price' => (int) round($product->price * 100),
    ], $items);

    $method = new ReflectionMethod(ShoppingUserController::class, 'prepareOrder');
    $method->invoke(new ShoppingUserController, $wpOrder, $shoppingUser, null, []);
}

describe('API-Bestellung Versandkostenfrei-Schwellenwert', function () {
    it('berechnet keine Versandkosten, wenn der Schwellenwert (DE 80 €) erreicht ist', function () {
        $shoppingUser = makeApiOrderEnv(80);
        $product = makeApiProduct(80.00);

        callApiPrepareOrder($shoppingUser, [$product]);

        $order = $shoppingUser->shopping_orders()->first();
        expect((float) $order->shipping)->toBe(0.0)
            ->and((float) $order->total_shipping)->toBe(80.0);
    });

    it('berechnet Versandkosten, wenn der Schwellenwert nicht erreicht ist', function () {
        $shoppingUser = makeApiOrderEnv(80);
        $product = makeApiProduct(79.00);

        callApiPrepareOrder($shoppingUser, [$product]);

        $order = $shoppingUser->shopping_orders()->first();
        expect((float) $order->shipping)->toBe(4.90)
            ->and((float) $order->total_shipping)->toBe(83.90);
    });

    it('berechnet Versandkosten, wenn kein Schwellenwert konfiguriert ist', function () {
        $shoppingUser = makeApiOrderEnv(null);
        $product = makeApiProduct(200.00);

        callApiPrepareOrder($shoppingUser, [$product]);

        $order = $shoppingUser->shopping_orders()->first();
        expect((float) $order->shipping)->toBe(4.90);
    });

    it('berechnet Versandkosten nach Gewicht der no_free_shipping-Produkte trotz erreichtem Schwellenwert', function () {
        $shoppingUser = makeApiOrderEnv(80);
        $normal = makeApiProduct(80.00);
        $excluded = makeApiProduct(20.00, 500, true);

        callApiPrepareOrder($shoppingUser, [$normal, $excluded]);

        $order = $shoppingUser->shopping_orders()->first();
        expect((float) $order->shipping)->toBe(4.90);
    });
});