<?php

namespace Tests\Feature;

use App\Http\Controllers\Hosting\HostingPanelController;
use App\Http\Controllers\Hosting\HostingProductController;
use App\Models\Domain;
use App\Models\HostedSite;
use App\Models\HostingAccount;
use App\Models\HostingNode;
use App\Models\HostingProduct;
use App\Models\User;
use App\Services\Domain\DomainDnsBlueprintService;
use App\Services\Domain\DomainVerificationService;
use App\Services\Hosting\Providers\SharedNodeProvider;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Bus;
use Tests\TestCase;

class HostingPanelDomainLinkingTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        Bus::fake();
    }

    public function test_add_domain_uses_automated_nameserver_onboarding_by_default(): void
    {
        $user = User::factory()->create();

        $product = HostingProduct::create([
            'name' => 'Multi Domain Hosting',
            'slug' => 'multi-domain-hosting-test',
            'category' => 'shared',
            'type' => 'multi_domain',
            'price_monthly' => 10,
            'max_domains' => 5,
        ]);

        $node = HostingNode::create([
            'name' => 'Local Node',
            'hostname' => 'local-node',
            'ip_address' => '127.0.0.1',
            'type' => 'shared',
            'provider' => 'local',
            'status' => 'active',
            'ssh_port' => '22',
        ]);

        $account = HostingAccount::unguarded(function () use ($user, $node, $product) {
            return HostingAccount::create([
                'user_id' => $user->id,
                'hosting_product_id' => $product->id,
                'hosting_node_id' => $node->id,
                'username' => 'acctuser',
                'primary_domain' => 'primary.example.com',
                'type' => 'shared',
                'status' => 'active',
                'php_version' => '8.2',
            ]);
        });

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldReceive('addSite')
            ->once()
            ->withArgs(fn (HostedSite $site): bool => $site->hosting_account_id === $account->id && $site->domain === 'linked-example.com')
            ->andReturn([
                'document_root' => '/home/acctuser/public_html/linked-example.com',
                'domain' => 'linked-example.com',
            ]);

        $verification = \Mockery::mock(DomainVerificationService::class);
        $verification->shouldReceive('reprovision')->once();
        $verification->shouldNotReceive('prepareNameserverZone');
        $verification->shouldNotReceive('prepareManualDnsPack');

        $this->app->instance(SharedNodeProvider::class, $provider);
        $this->app->instance(DomainVerificationService::class, $verification);

        $session = $this->app['session.store'];
        $session->start();

        $request = Request::create('http://localhost/hosting/panel/' . $account->id . '/domains', 'POST', [
            'domain' => 'linked-example.com',
        ], [], [], [
            'HTTP_REFERER' => 'http://localhost/hosting/accounts/' . $account->id,
        ]);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);

        $response = $this->app->make(HostingPanelController::class)->addDomain(
            $request,
            $account,
            $this->app->make(DomainDnsBlueprintService::class),
            $this->app->make(DomainVerificationService::class),
        );

        $this->assertSame(302, $response->getStatusCode());

        $domain = Domain::query()->where('host', 'linked-example.com')->firstOrFail();

        $this->assertSame($account->id, $domain->hosting_account_id);
        $this->assertSame(Domain::MODE_NS_AUTO, $domain->onboarding_mode);
        $this->assertSame('managed', $domain->dns_mode);

        $this->assertDatabaseHas('hosted_sites', [
            'hosting_account_id' => $account->id,
            'domain' => 'linked-example.com',
            'domain_id' => $domain->id,
        ]);
    }

    public function test_hosting_account_page_renders_linked_domains(): void
    {
        $user = User::factory()->create();

        $product = HostingProduct::create([
            'name' => 'Multi Domain Hosting',
            'slug' => 'multi-domain-account-view-test',
            'category' => 'shared',
            'type' => 'multi_domain',
            'price_monthly' => 10,
            'max_domains' => 3,
        ]);

        $node = HostingNode::create([
            'name' => 'Local Node',
            'hostname' => 'local-node',
            'ip_address' => '127.0.0.1',
            'type' => 'shared',
            'provider' => 'local',
            'status' => 'active',
            'ssh_port' => '22',
        ]);

        $account = HostingAccount::unguarded(function () use ($user, $node, $product) {
            return HostingAccount::create([
                'user_id' => $user->id,
                'hosting_product_id' => $product->id,
                'hosting_node_id' => $node->id,
                'username' => 'acctuser',
                'primary_domain' => 'primary.example.com',
                'type' => 'shared',
                'status' => 'active',
                'php_version' => '8.2',
            ]);
        });

        HostedSite::create([
            'hosting_account_id' => $account->id,
            'domain' => 'primary.example.com',
            'document_root' => '/home/acctuser/public_html',
            'type' => 'primary',
            'status' => 'active',
            'ssl_enabled' => true,
        ]);

        HostedSite::create([
            'hosting_account_id' => $account->id,
            'domain' => 'linked-example.com',
            'document_root' => '/home/acctuser/public_html/linked-example.com',
            'type' => 'addon',
            'status' => 'active',
            'ssl_enabled' => false,
        ]);

        $request = Request::create('http://localhost/hosting/accounts/' . $account->id, 'GET');
        $request->setUserResolver(fn (): User => $user);

        $view = $this->app->make(HostingProductController::class)->showAccount($request, $account);
        $html = $view->render();

        $this->assertStringContainsString('primary.example.com', $html);
        $this->assertStringContainsString('linked-example.com', $html);
        $this->assertStringContainsString('2 of 3 domain slots in use.', $html);
        $this->assertStringContainsString('0 of 15 subdomain slots in use.', $html);
    }

    public function test_add_domain_does_not_restore_soft_deleted_site_from_another_account(): void
    {
        $user = User::factory()->create();
        $otherUser = User::factory()->create();

        $product = HostingProduct::create([
            'name' => 'Multi Domain Hosting',
            'slug' => 'multi-domain-restore-guard-test',
            'category' => 'shared',
            'type' => 'multi_domain',
            'price_monthly' => 10,
            'max_domains' => 5,
        ]);

        $node = HostingNode::create([
            'name' => 'Local Node',
            'hostname' => 'local-node',
            'ip_address' => '127.0.0.1',
            'type' => 'shared',
            'provider' => 'local',
            'status' => 'active',
            'ssh_port' => '22',
        ]);

        $account = HostingAccount::unguarded(function () use ($user, $node, $product) {
            return HostingAccount::create([
                'user_id' => $user->id,
                'hosting_product_id' => $product->id,
                'hosting_node_id' => $node->id,
                'username' => 'acctuser',
                'primary_domain' => 'primary.example.com',
                'type' => 'shared',
                'status' => 'active',
                'php_version' => '8.2',
            ]);
        });

        $otherAccount = HostingAccount::unguarded(function () use ($otherUser, $node, $product) {
            return HostingAccount::create([
                'user_id' => $otherUser->id,
                'hosting_product_id' => $product->id,
                'hosting_node_id' => $node->id,
                'username' => 'otheracct',
                'primary_domain' => 'other.example.com',
                'type' => 'shared',
                'status' => 'active',
                'php_version' => '8.2',
            ]);
        });

        $site = HostedSite::create([
            'hosting_account_id' => $otherAccount->id,
            'domain' => 'linked-example.com',
            'document_root' => '/home/otheracct/public_html/linked-example.com',
            'type' => 'addon',
            'status' => 'active',
        ]);
        $site->delete();

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldNotReceive('addSite');
        $this->app->instance(SharedNodeProvider::class, $provider);

        $session = $this->app['session.store'];
        $session->start();

        $request = Request::create('http://localhost/hosting/panel/' . $account->id . '/domains', 'POST', [
            'domain' => 'linked-example.com',
        ], [], [], [
            'HTTP_REFERER' => 'http://localhost/hosting/accounts/' . $account->id,
        ]);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);

        $response = $this->app->make(HostingPanelController::class)->addDomain(
            $request,
            $account,
            $this->app->make(DomainDnsBlueprintService::class),
            $this->app->make(DomainVerificationService::class),
        );

        $this->assertSame(302, $response->getStatusCode());
        $this->assertSame('This domain is already in use on another hosting account.', $session->get('error'));
        $this->assertSoftDeleted('hosted_sites', [
            'id' => $site->id,
            'hosting_account_id' => $otherAccount->id,
            'domain' => 'linked-example.com',
        ]);
    }

    public function test_add_subdomain_creates_hosted_site_under_parent_domain(): void
    {
        [$user, $account, $parent] = $this->makeAccountWithPrimary(maxDomains: 1, withManagedDomain: true);

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldReceive('addSite')
            ->once()
            ->withArgs(fn (HostedSite $site): bool => $site->domain === 'blog.primary.example.com' && $site->type === 'subdomain')
            ->andReturn(['document_root' => '/home/acctuser/public_html/blog.primary.example.com', 'domain' => 'blog.primary.example.com']);

        $pdns = \Mockery::mock(\App\Services\Dns\PowerDnsClient::class);
        $pdns->shouldReceive('upsertRecords')
            ->once()
            ->withArgs(function (string $zone, array $records) {
                return $zone === 'primary.example.com'
                    && ($records[0]['name'] ?? null) === 'blog.primary.example.com'
                    && ($records[0]['contents'][0] ?? null) === '127.0.0.1';
            })
            ->andReturn(['status' => 'updated', 'count' => 1]);

        $this->app->instance(SharedNodeProvider::class, $provider);
        $this->app->instance(\App\Services\Dns\PowerDnsClient::class, $pdns);

        $session = $this->app['session.store'];
        $session->start();

        $request = Request::create('http://localhost/hosting/panel/'.$account->id.'/domains/subdomains', 'POST', [
            'parent_site_id' => $parent->id,
            'subdomain' => 'blog',
        ], [], [], [
            'HTTP_REFERER' => 'http://localhost/hosting/panel/'.$account->id.'/domains',
        ]);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);

        $response = $this->app->make(HostingPanelController::class)->addSubdomain(
            $request,
            $account,
            $this->app->make(\App\Services\Dns\PowerDnsClient::class),
        );

        $this->assertSame(302, $response->getStatusCode());
        $this->assertDatabaseHas('hosted_sites', [
            'hosting_account_id' => $account->id,
            'domain' => 'blog.primary.example.com',
            'type' => 'subdomain',
            'domain_id' => $parent->domain_id,
            'document_root' => '/home/acctuser/public_html/blog.primary.example.com',
        ]);
        $this->assertSame(1, $account->fresh()->subdomainSitesCount());
        $this->assertSame(5, $account->fresh()->maxSubdomainsLimit());
    }

    public function test_subdomain_quota_is_max_domains_times_five(): void
    {
        [$user, $account, $parent] = $this->makeAccountWithPrimary(maxDomains: 1, withManagedDomain: false);

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldReceive('addSite')->times(5)->andReturnUsing(function (HostedSite $site) {
            return ['document_root' => $site->document_root, 'domain' => $site->domain];
        });
        $this->app->instance(SharedNodeProvider::class, $provider);
        $this->app->instance(\App\Services\Dns\PowerDnsClient::class, \Mockery::mock(\App\Services\Dns\PowerDnsClient::class));

        $controller = $this->app->make(HostingPanelController::class);

        for ($i = 1; $i <= 5; $i++) {
            $session = $this->app['session.store'];
            $session->start();
            $request = Request::create('/domains/subdomains', 'POST', [
                'parent_site_id' => $parent->id,
                'subdomain' => 'sub'.$i,
            ]);
            $request->setUserResolver(fn (): User => $user);
            $request->setLaravelSession($session);

            $response = $controller->addSubdomain($request, $account->fresh(), $this->app->make(\App\Services\Dns\PowerDnsClient::class));
            $this->assertSame(302, $response->getStatusCode());
            $this->assertNull($session->get('error'), 'sub'.$i.' should succeed');
        }

        $this->assertSame(5, $account->fresh()->subdomainSitesCount());

        $session = $this->app['session.store'];
        $session->start();
        $request = Request::create('/domains/subdomains', 'POST', [
            'parent_site_id' => $parent->id,
            'subdomain' => 'sub6',
        ]);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);

        $response = $controller->addSubdomain($request, $account->fresh(), $this->app->make(\App\Services\Dns\PowerDnsClient::class));
        $this->assertSame(302, $response->getStatusCode());
        $this->assertSame('You have reached the maximum number of subdomains (5).', $session->get('error'));
        $this->assertSame(5, $account->fresh()->subdomainSitesCount());
    }

    public function test_addon_domain_cap_ignores_subdomains(): void
    {
        [$user, $account, $parent] = $this->makeAccountWithPrimary(maxDomains: 2, withManagedDomain: false);

        HostedSite::create([
            'hosting_account_id' => $account->id,
            'domain' => 'blog.primary.example.com',
            'document_root' => '/home/acctuser/public_html/blog.primary.example.com',
            'type' => 'subdomain',
            'status' => 'active',
            'domain_id' => $parent->domain_id,
        ]);

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldReceive('addSite')->once()->andReturn([
            'document_root' => '/home/acctuser/public_html/addon.example.com',
            'domain' => 'addon.example.com',
        ]);
        $verification = \Mockery::mock(DomainVerificationService::class);
        $verification->shouldReceive('reprovision')->once();
        $this->app->instance(SharedNodeProvider::class, $provider);
        $this->app->instance(DomainVerificationService::class, $verification);

        $session = $this->app['session.store'];
        $session->start();
        $request = Request::create('/domains', 'POST', ['domain' => 'addon.example.com']);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);

        $response = $this->app->make(HostingPanelController::class)->addDomain(
            $request,
            $account->fresh(),
            $this->app->make(DomainDnsBlueprintService::class),
            $this->app->make(DomainVerificationService::class),
        );

        $this->assertSame(302, $response->getStatusCode());
        $this->assertNull($session->get('error'));
        $this->assertDatabaseHas('hosted_sites', [
            'hosting_account_id' => $account->id,
            'domain' => 'addon.example.com',
            'type' => 'addon',
        ]);
    }

    public function test_add_subdomain_rejects_reserved_and_invalid_labels(): void
    {
        [$user, $account, $parent] = $this->makeAccountWithPrimary(maxDomains: 1, withManagedDomain: false);
        $this->app->instance(SharedNodeProvider::class, \Mockery::mock(SharedNodeProvider::class));
        $this->app->instance(\App\Services\Dns\PowerDnsClient::class, \Mockery::mock(\App\Services\Dns\PowerDnsClient::class));
        $controller = $this->app->make(HostingPanelController::class);

        $session = $this->app['session.store'];
        $session->start();
        $request = Request::create('/domains/subdomains', 'POST', [
            'parent_site_id' => $parent->id,
            'subdomain' => 'www',
        ]);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);
        $controller->addSubdomain($request, $account, $this->app->make(\App\Services\Dns\PowerDnsClient::class));
        $this->assertSame('The subdomain "www" is reserved.', $session->get('error'));

        $this->expectException(\Illuminate\Validation\ValidationException::class);
        $session = $this->app['session.store'];
        $session->start();
        $request = Request::create('/domains/subdomains', 'POST', [
            'parent_site_id' => $parent->id,
            'subdomain' => 'bad.label',
        ]);
        $request->setUserResolver(fn (): User => $user);
        $request->setLaravelSession($session);
        $controller->addSubdomain($request, $account, $this->app->make(\App\Services\Dns\PowerDnsClient::class));
    }

    /**
     * @return array{0: User, 1: HostingAccount, 2: HostedSite}
     */
    private function makeAccountWithPrimary(int $maxDomains, bool $withManagedDomain): array
    {
        $user = User::factory()->create();

        $product = HostingProduct::create([
            'name' => 'Hosting Plan',
            'slug' => 'hosting-plan-'.uniqid(),
            'category' => 'shared',
            'type' => 'multi_domain',
            'price_monthly' => 10,
            'max_domains' => $maxDomains,
        ]);

        $node = HostingNode::create([
            'name' => 'Local Node',
            'hostname' => 'local-node-'.uniqid(),
            'ip_address' => '127.0.0.1',
            'type' => 'shared',
            'provider' => 'local',
            'status' => 'active',
            'ssh_port' => '22',
        ]);

        $account = HostingAccount::unguarded(function () use ($user, $node, $product, $maxDomains) {
            return HostingAccount::create([
                'user_id' => $user->id,
                'hosting_product_id' => $product->id,
                'hosting_node_id' => $node->id,
                'username' => 'acctuser',
                'primary_domain' => 'primary.example.com',
                'type' => 'shared',
                'status' => 'active',
                'php_version' => '8.2',
                'resource_limits' => ['max_domains' => $maxDomains],
            ]);
        });

        $domain = null;
        if ($withManagedDomain) {
            $domain = Domain::create([
                'user_id' => $user->id,
                'hosting_account_id' => $account->id,
                'host' => 'primary.example.com',
                'type' => 'custom',
                'source' => 'hosting',
                'onboarding_mode' => Domain::MODE_NS_AUTO,
                'status' => 'verified',
                'onboarding_state' => Domain::STATE_ACTIVE,
                'dns_mode' => 'managed',
            ]);
        }

        $parent = HostedSite::create([
            'hosting_account_id' => $account->id,
            'domain_id' => $domain?->id,
            'domain' => 'primary.example.com',
            'document_root' => '/home/acctuser/public_html',
            'type' => 'primary',
            'status' => 'active',
            'ssl_enabled' => true,
        ]);

        return [$user, $account->fresh(['sites', 'product', 'node']), $parent->fresh()];
    }
}