<?php

namespace Webkul\BagistoApi\Tests\Unit\Transformers;

use Illuminate\Http\Request;
use Tests\TestCase;
use Webkul\BagistoApi\Transformers\ExpressOrderResource;

/**
 * Coverage for express-checkout order shaping:
 *
 *   - shipping_amount / tax_amount are zeroed
 *   - grand_total == sub_total - discount_amount
 *   - billing address is filled from the configured placeholder when
 *     the cart has no real address attached
 */
class ExpressOrderResourceTest extends TestCase
{
    public function test_zeros_out_tax_and_shipping_and_uses_placeholder_address(): void
    {
        config(['bagistoapi.express_checkout.placeholder_address' => [
            'first_name' => 'Express',
            'last_name'  => 'Checkout',
            'email'      => 'expr@placeholder.local',
            'address'    => 'Pending',
            'city'       => 'PendingCity',
            'state'      => 'PendingState',
            'country'    => 'US',
            'postcode'   => '00000',
            'phone'      => '0000000000',
        ]]);

        $cart = $this->fakeCart([
            'id'                   => 99,
            'sub_total'            => 100.0,
            'base_sub_total'       => 100.0,
            'discount_amount'      => 10.0,
            'base_discount_amount' => 10.0,
        ]);

        $payload = (new ExpressOrderResource($cart))->toArray(Request::create('/'));

        $this->assertSame(0, $payload['tax_amount']);
        $this->assertSame(0, $payload['shipping_tax_amount']);
        $this->assertEquals(90.0, $payload['grand_total']);
        $this->assertEquals(90.0, $payload['base_grand_total']);

        $this->assertSame('PendingCity', $payload['billing_address']['city']);
        $this->assertSame('00000', $payload['billing_address']['postcode']);
        $this->assertSame('order_billing', $payload['billing_address']['address_type']);
    }

    public function test_shipping_address_omitted_for_non_stockable_carts(): void
    {
        $cart = $this->fakeCart([
            'id'              => 1,
            'sub_total'       => 50.0,
            'base_sub_total'  => 50.0,
            'discount_amount' => 0,
            'haveStockable'   => false,
        ]);

        $payload = (new ExpressOrderResource($cart))->toArray(Request::create('/'));

        $this->assertNull($payload['shipping_address']);
        $this->assertNotEmpty($payload['billing_address']);
    }

    /**
     * Build a cart-shaped stdClass that exposes every property the
     * resource reads. Eloquent's behavior is irrelevant here - the
     * resource only does property access + a `haveStockableItems()`
     * method call.
     */
    private function fakeCart(array $overrides): object
    {
        $defaults = [
            'id'                      => 1,
            'is_guest'                => 1,
            'customer_id'             => null,
            'customer'                => null,
            'customer_email'          => null,
            'customer_first_name'     => null,
            'customer_last_name'      => null,
            'channel_id'              => 1,
            'items_count'             => 1,
            'items_qty'               => 1,
            'base_currency_code'      => 'USD',
            'channel_currency_code'   => 'USD',
            'cart_currency_code'      => 'USD',
            'sub_total'               => 0,
            'sub_total_incl_tax'      => 0,
            'base_sub_total'          => 0,
            'base_sub_total_incl_tax' => 0,
            'coupon_code'             => null,
            'applied_cart_rule_ids'   => null,
            'discount_amount'         => 0,
            'base_discount_amount'    => 0,
            'billing_address'         => null,
            'shipping_address'        => null,
            'payment'                 => null,
            'items'                   => collect(),
            'haveStockable'           => true,
        ];

        $data = array_merge($defaults, $overrides);

        $cart = new class
        {
            public ?object $channel = null;
            public ?object $payment = null;
            public ?object $billing_address = null;
            public ?object $shipping_address = null;
            public mixed $items = null;
            public bool $haveStockable = true;

            public function haveStockableItems(): bool
            {
                return $this->haveStockable;
            }
        };

        foreach ($data as $key => $value) {
            $cart->{$key} = $value;
        }

        $cart->channel = new class {
            public string $name = 'Default';
        };

        $cart->payment = (object) [
            'method'       => 'paypal_smart_button',
            'method_title' => 'PayPal Smart Button',
        ];

        return $cart;
    }
}