<?php

namespace Tests\Unit\Services;

use App\Services\NavigationContextService;
use Illuminate\Http\Request;
use Tests\TestCase;

class NavigationContextServiceTest extends TestCase
{
    public function test_builds_back_navigation_stack_from_get_requests(): void
    {
        session()->start();

        $service = app(NavigationContextService::class);
        $indexRequest = Request::create('https://crm.test/reclamations?filters[comment]=abc', 'GET');
        $showRequest = Request::create('https://crm.test/reclamations/show/10', 'GET');

        $token = $service->getOrCreateToken($indexRequest);
        $service->rememberCurrentPage($indexRequest, $token);
        $service->rememberCurrentPage($showRequest, $token);

        $backUrl = $service->backUrl($showRequest, $token, 'https://crm.test/reclamations');
        $parentUrl = $service->parentUrl($token, 'https://crm.test/reclamations');

        $this->assertSame('https://crm.test/reclamations?filters%5Bcomment%5D=abc&nav=' . $token, $backUrl);
        $this->assertSame('https://crm.test/reclamations?filters%5Bcomment%5D=abc&nav=' . $token, $parentUrl);
    }

    public function test_remember_current_page_truncates_stack_when_returning_to_previous_url(): void
    {
        session()->start();

        $service = app(NavigationContextService::class);
        $orderRequest = Request::create('https://crm.test/order/show/10', 'GET');
        $reclamationRequest = Request::create('https://crm.test/reclamations/show/20?nav=test-token', 'GET');
        $catalogRequest = Request::create('https://crm.test/catalog/15?nav=test-token', 'GET');

        $token = $service->getOrCreateToken($orderRequest);
        $service->rememberCurrentPage($orderRequest, $token);
        $service->rememberCurrentPage($reclamationRequest, $token);
        $service->rememberCurrentPage($catalogRequest, $token);
        $service->rememberCurrentPage($reclamationRequest, $token);

        $contexts = session('navigation');
        $stack = $contexts[$token]['stack'] ?? [];

        $this->assertSame([
            'https://crm.test/order/show/10',
            'https://crm.test/reclamations/show/20',
        ], $stack);
    }

    public function test_parent_url_returns_fallback_when_stack_has_single_entry(): void
    {
        session()->start();

        $service = app(NavigationContextService::class);
        $request = Request::create('https://crm.test/product_sku/55', 'GET');

        $token = $service->getOrCreateToken($request);
        $service->rememberCurrentPage($request, $token);

        $this->assertSame('https://crm.test/product_sku?nav=' . $token, $service->parentUrl($token, 'https://crm.test/product_sku'));
    }

    public function test_back_url_preserves_nav_token_for_previous_card(): void
    {
        session()->start();

        $service = app(NavigationContextService::class);
        $catalogRequest = Request::create('https://crm.test/catalog/15?nav=test-token', 'GET');

        $token = $service->getOrCreateToken(Request::create('https://crm.test/reclamations', 'GET', ['nav' => 'test-token']));
        session([
            'navigation.' . $token => [
                'updated_at' => time(),
                'stack' => [
                    'https://crm.test/order/show/10',
                    'https://crm.test/reclamations/show/20',
                    'https://crm.test/catalog/15',
                ],
            ],
        ]);

        $this->assertSame(
            'https://crm.test/reclamations/show/20?nav=' . $token,
            $service->backUrl($catalogRequest, $token, 'https://crm.test/catalog')
        );
        $this->assertSame(
            'https://crm.test/reclamations/show/20?nav=' . $token,
            $service->parentUrl($token, 'https://crm.test/catalog')
        );
    }
}