<?php

namespace Tests\Feature;

use App\Models\Inquiry;
use App\Jobs\ProvisionTenantJob;
use Illuminate\Foundation\Testing\RefreshDatabase;
use App\Models\Tenant;
use Tests\TestCase;

class TenantAdminIsolationTest extends TestCase
{
    use RefreshDatabase;

    public function test_tenant_provisioning_creates_admin_account_with_inquiry_email_and_default_password(): void
    {
        $inquiryEmail = 'custom.admin@acmecompany.com';
        $inquiry = Inquiry::create([
            'company_name' => 'Acme Corporation',
            'contact_name' => 'Acme Admin',
            'email' => $inquiryEmail,
            'desired_subdomain' => 'acme-test-domain',
            'employee_count' => 25,
            'requested_features' => ['payroll', 'geofence'],
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);

        $job = new ProvisionTenantJob($inquiry);
        $job->handle();

        $tenant = Tenant::find('acme-test-domain');
        $this->assertNotNull($tenant);

        // Verify that inside the tenant database context:
        // 1. The admin user exists ONLY under $inquiryEmail (the email entered in the inquiry wizard).
        // 2. The admin user can authenticate with password '12345678'.
        $tenant->run(function () use ($inquiryEmail) {
            $user = \App\Models\User::where('email', $inquiryEmail)->first();
            $this->assertNotNull($user, "Tenant admin user with email {$inquiryEmail} was not found in tenant database.");
            
            // Assert password verifies against default password '12345678'
            $this->assertTrue(\Illuminate\Support\Facades\Hash::check('12345678', $user->password));

            // Assert non-registered email does not exist in this tenant's isolated database
            $unregisteredUser = \App\Models\User::where('email', 'unregistered.other@domain.com')->first();
            $this->assertNull($unregisteredUser);
        });
    }

    public function test_subdomains_have_isolated_databases_and_credentials(): void
    {
        // Tenant A
        $inquiryA = Inquiry::create([
            'company_name' => 'Company A',
            'contact_name' => 'Admin A',
            'email' => 'admin@companya.com',
            'desired_subdomain' => 'companya-tenant',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryA))->handle();

        // Tenant B
        $inquiryB = Inquiry::create([
            'company_name' => 'Company B',
            'contact_name' => 'Admin B',
            'email' => 'admin@companyb.com',
            'desired_subdomain' => 'companyb-tenant',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryB))->handle();

        // Verify Tenant A DB contains Admin A
        $tenantA = Tenant::find('companya-tenant');
        $this->assertNotNull($tenantA);
        $tenantA->run(function () {
            $this->assertNotNull(\App\Models\User::where('email', 'admin@companya.com')->first());
        });

        // Verify Tenant B DB contains Admin B
        $tenantB = Tenant::find('companyb-tenant');
        $this->assertNotNull($tenantB);
        $tenantB->run(function () {
            $this->assertNotNull(\App\Models\User::where('email', 'admin@companyb.com')->first());
        });
    }

    public function test_real_http_domain_cross_tenant_login_rejection(): void
    {
        // 1. Provision Subdomain A (admin@companya.com / 12345678)
        $inquiryA = Inquiry::create([
            'company_name' => 'Company A',
            'contact_name' => 'Admin A',
            'email' => 'admin@companya.com',
            'desired_subdomain' => 'subdomain-a',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryA))->handle();

        // 2. Provision Subdomain B (admin@companyb.com / 12345678)
        $inquiryB = Inquiry::create([
            'company_name' => 'Company B',
            'contact_name' => 'Admin B',
            'email' => 'admin@companyb.com',
            'desired_subdomain' => 'subdomain-b',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryB))->handle();

        if (function_exists('tenancy') && tenancy()->initialized) {
            tenancy()->end();
        }

        $domainHost = config('app.url_domain', 'localhost');

        // 3. Real HTTP POST to Subdomain A (/login) with Subdomain B credentials -> Fails validation / 401 / redirect
        $tenantA = \App\Models\Tenant::find('subdomain-a');
        tenancy()->initialize($tenantA);

        $responseAToB = $this->withServerVariables(['HTTP_HOST' => "subdomain-a.{$domainHost}"])
            ->post("http://subdomain-a.{$domainHost}/login", [
                'email' => 'admin@companyb.com',
                'password' => '12345678',
            ]);

        $this->assertTrue(
            $responseAToB->isRedirect() || $responseAToB->status() === 422 || $responseAToB->status() === 401
        );
        $this->assertGuest();

        // 4. Real HTTP POST to Subdomain B (/login) with Subdomain A credentials -> Fails validation / 401 / redirect
        if (function_exists('tenancy') && tenancy()->initialized) {
            tenancy()->end();
        }

        $tenantB = \App\Models\Tenant::find('subdomain-b');
        tenancy()->initialize($tenantB);

        $responseBToA = $this->withServerVariables(['HTTP_HOST' => "subdomain-b.{$domainHost}"])
            ->post("http://subdomain-b.{$domainHost}/login", [
                'email' => 'admin@companya.com',
                'password' => '12345678',
            ]);

        $this->assertTrue(
            $responseBToA->isRedirect() || $responseBToA->status() === 422 || $responseBToA->status() === 401
        );
        $this->assertGuest();
    }

    public function test_subdomain_a_rejects_subdomain_b_credentials_without_manual_tenant_initialization(): void
    {
        $inquiryA = Inquiry::create([
            'company_name' => 'Company A',
            'contact_name' => 'Admin A',
            'email' => 'admin@subdomain-a.test',
            'desired_subdomain' => 'strict-subdomain-a',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryA))->handle();

        $inquiryB = Inquiry::create([
            'company_name' => 'Company B',
            'contact_name' => 'Admin B',
            'email' => 'admin@subdomain-b.test',
            'desired_subdomain' => 'strict-subdomain-b',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryB))->handle();

        if (function_exists('tenancy') && tenancy()->initialized) {
            tenancy()->end();
        }

        $domainHost = config('app.url_domain', 'localhost');
        $response = $this->withServerVariables([
            'HTTP_HOST' => "strict-subdomain-a.{$domainHost}",
        ])->post("http://strict-subdomain-a.{$domainHost}/login", [
            'email' => 'admin@subdomain-b.test',
            'password' => '12345678',
        ]);

        $this->assertGuest();
        $this->assertNotSame(
            '/dashboard',
            parse_url($response->headers->get('Location', ''), PHP_URL_PATH),
            'Cross-tenant credentials must not redirect to the authenticated dashboard.'
        );
    }

    public function test_real_subdomain_login_accepts_only_the_subdomain_credentials(): void
    {
        $inquiryA = Inquiry::create([
            'company_name' => 'Company A',
            'contact_name' => 'Admin A',
            'email' => 'admin@real-a.test',
            'desired_subdomain' => 'real-subdomain-a',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryA))->handle();

        $inquiryB = Inquiry::create([
            'company_name' => 'Company B',
            'contact_name' => 'Admin B',
            'email' => 'admin@real-b.test',
            'desired_subdomain' => 'real-subdomain-b',
            'email_verified_at' => now(),
            'status' => 'approved',
        ]);
        (new ProvisionTenantJob($inquiryB))->handle();

        if (function_exists('tenancy') && tenancy()->initialized) {
            tenancy()->end();
        }

        $domainHost = config('app.url_domain', 'localhost');
        $request = fn (string $subdomain, string $email) => $this
            ->withServerVariables(['HTTP_HOST' => "{$subdomain}.{$domainHost}"])
            ->post("http://{$subdomain}.{$domainHost}/login", [
                'email' => $email,
                'password' => '12345678',
            ]);

        $aWithA = $request('real-subdomain-a', 'admin@real-a.test');
        $this->assertSame(
            '/dashboard',
            parse_url($aWithA->headers->get('Location', ''), PHP_URL_PATH),
            'Subdomain A credentials must authenticate on Subdomain A.'
        );

        $this->app['auth']->logout();
        if (function_exists('tenancy') && tenancy()->initialized) {
            tenancy()->end();
        }

        $aWithB = $request('real-subdomain-a', 'admin@real-b.test');
        $this->assertGuest();
        $this->assertNotSame('/dashboard', parse_url($aWithB->headers->get('Location', ''), PHP_URL_PATH));

        if (function_exists('tenancy') && tenancy()->initialized) {
            tenancy()->end();
        }

        $bWithA = $request('real-subdomain-b', 'admin@real-a.test');
        $this->assertGuest();
        $this->assertNotSame('/dashboard', parse_url($bWithA->headers->get('Location', ''), PHP_URL_PATH));
    }
}