<?php

namespace Tests\Feature;

use App\Models\CustomerHostingOrder;
use App\Models\Domain;
use App\Models\HostingAccount;
use App\Models\HostingBillingInvoice;
use App\Models\HostingPlanChange;
use App\Models\HostingProduct;
use App\Models\Mailbox;
use App\Models\User;
use App\Services\Hosting\Providers\SharedNodeProvider;
use Carbon\Carbon;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Hash;
use Tests\TestCase;

class HostingPhaseThreeApiTest extends TestCase
{
    use RefreshDatabase;

    protected function tearDown(): void
    {
        Carbon::setTestNow();

        parent::tearDown();
    }

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

        $visible = $this->makeProduct([
            'name' => 'Starter Shared',
            'slug' => 'starter-shared-phase3',
            'category' => HostingProduct::CATEGORY_SHARED,
            'type' => HostingProduct::TYPE_SINGLE_DOMAIN,
        ]);

        $hidden = $this->makeProduct([
            'name' => 'Hidden Shared',
            'slug' => 'hidden-shared-phase3',
            'category' => HostingProduct::CATEGORY_SHARED,
            'type' => HostingProduct::TYPE_MULTI_DOMAIN,
            'is_visible' => false,
        ]);

        $this->actingAs($user)
            ->getJson('/api/plans')
            ->assertOk()
            ->assertJsonPath('data.0.id', $visible->id)
            ->assertJsonMissing(['id' => $hidden->id]);
    }

    public function test_upgrade_endpoint_applies_prorated_plan_change_and_updates_quotas(): void
    {
        Carbon::setTestNow(Carbon::create(2026, 4, 6, 10, 0, 0));

        $user = User::factory()->create();
        $currentProduct = $this->makeProduct([
            'name' => 'Starter',
            'slug' => 'starter-phase3-upgrade',
            'price_monthly' => 10,
            'disk_gb' => 10,
            'max_domains' => 1,
            'max_databases' => 2,
            'max_email_accounts' => 5,
        ]);
        $targetProduct = $this->makeProduct([
            'name' => 'Growth',
            'slug' => 'growth-phase3-upgrade',
            'price_monthly' => 25,
            'disk_gb' => 25,
            'max_domains' => 5,
            'max_databases' => 10,
            'max_email_accounts' => 15,
        ]);

        $account = $this->makeAccount($user, $currentProduct, [
            'allocated_disk_gb' => 10,
            'expires_at' => now()->addMonth(),
            'resource_limits' => [
                'disk_gb' => 10,
                'max_domains' => 1,
                'max_databases' => 2,
                'max_email_accounts' => 5,
            ],
        ]);

        CustomerHostingOrder::create([
            'user_id' => $user->id,
            'hosting_product_id' => $currentProduct->id,
            'hosting_account_id' => $account->id,
            'domain_name' => $account->primary_domain,
            'billing_cycle' => CustomerHostingOrder::CYCLE_MONTHLY,
            'amount_paid' => 10,
            'currency' => 'GHS',
            'status' => CustomerHostingOrder::STATUS_ACTIVE,
            'expires_at' => now()->addMonth(),
        ]);

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldReceive('syncAccountPackage')->once()->andReturn(true);
        $this->app->instance(SharedNodeProvider::class, $provider);

        $this->actingAs($user)
            ->postJson('/api/hosting/upgrade', [
                'hosting_account_id' => $account->id,
                'target_product_id' => $targetProduct->id,
            ])
            ->assertOk()
            ->assertJsonPath('data.quote.direction', HostingPlanChange::DIRECTION_UPGRADE)
            ->assertJsonPath('data.quote.charge_amount', 15)
            ->assertJsonPath('data.invoice.total_amount', '15.00');

        $account->refresh();

        $this->assertSame($targetProduct->id, $account->hosting_product_id);
        $this->assertSame(25, $account->allocated_disk_gb);
        $this->assertSame(5, data_get($account->resource_limits, 'max_domains'));
        $this->assertSame(15, data_get($account->resource_limits, 'max_email_accounts'));

        $this->assertDatabaseHas('hosting_plan_changes', [
            'hosting_account_id' => $account->id,
            'direction' => HostingPlanChange::DIRECTION_UPGRADE,
            'charge_amount' => 15,
            'credit_amount' => 0,
        ]);

        $this->assertDatabaseHas('hosting_billing_invoices', [
            'hosting_account_id' => $account->id,
            'invoice_type' => HostingBillingInvoice::TYPE_PLAN_CHANGE,
            'status' => HostingBillingInvoice::STATUS_PENDING,
            'total_amount' => 15,
        ]);
    }

    public function test_downgrade_endpoint_applies_credit_and_reduces_quota_immediately(): void
    {
        Carbon::setTestNow(Carbon::create(2026, 4, 6, 10, 0, 0));

        $user = User::factory()->create();
        $currentProduct = $this->makeProduct([
            'name' => 'Growth',
            'slug' => 'growth-phase3-downgrade',
            'price_monthly' => 25,
            'disk_gb' => 25,
            'max_domains' => 5,
            'max_databases' => 10,
            'max_email_accounts' => 15,
        ]);
        $targetProduct = $this->makeProduct([
            'name' => 'Starter',
            'slug' => 'starter-phase3-downgrade',
            'price_monthly' => 10,
            'disk_gb' => 10,
            'max_domains' => 1,
            'max_databases' => 2,
            'max_email_accounts' => 5,
        ]);

        $account = $this->makeAccount($user, $currentProduct, [
            'allocated_disk_gb' => 25,
            'expires_at' => now()->addMonth(),
            'resource_limits' => [
                'disk_gb' => 25,
                'max_domains' => 5,
                'max_databases' => 10,
                'max_email_accounts' => 15,
            ],
        ]);

        CustomerHostingOrder::create([
            'user_id' => $user->id,
            'hosting_product_id' => $currentProduct->id,
            'hosting_account_id' => $account->id,
            'domain_name' => $account->primary_domain,
            'billing_cycle' => CustomerHostingOrder::CYCLE_MONTHLY,
            'amount_paid' => 25,
            'currency' => 'GHS',
            'status' => CustomerHostingOrder::STATUS_ACTIVE,
            'expires_at' => now()->addMonth(),
        ]);

        $provider = \Mockery::mock(SharedNodeProvider::class);
        $provider->shouldReceive('syncAccountPackage')->once()->andReturn(true);
        $this->app->instance(SharedNodeProvider::class, $provider);

        $this->actingAs($user)
            ->postJson('/api/hosting/downgrade', [
                'hosting_account_id' => $account->id,
                'target_product_id' => $targetProduct->id,
            ])
            ->assertOk()
            ->assertJsonPath('data.quote.direction', HostingPlanChange::DIRECTION_DOWNGRADE)
            ->assertJsonPath('data.quote.credit_amount', 15)
            ->assertJsonPath('data.invoice.status', HostingBillingInvoice::STATUS_CREDITED);

        $account->refresh();

        $this->assertSame($targetProduct->id, $account->hosting_product_id);
        $this->assertSame(10, $account->allocated_disk_gb);
        $this->assertDatabaseHas('hosting_billing_invoices', [
            'hosting_account_id' => $account->id,
            'invoice_type' => HostingBillingInvoice::TYPE_PLAN_CHANGE,
            'status' => HostingBillingInvoice::STATUS_CREDITED,
            'credit_amount' => 15,
            'total_amount' => 0,
        ]);
    }

    public function test_paid_hosting_mailbox_creation_creates_addon_invoice(): void
    {
        $user = User::factory()->create();
        $product = $this->makeProduct([
            'name' => 'Starter Mail',
            'slug' => 'starter-mail-phase3',
            'max_email_accounts' => 1,
        ]);
        $account = $this->makeAccount($user, $product);
        $domain = $this->makeDomain($user, $account, 'phase3-mail.test');

        Mailbox::create([
            'user_id' => $user->id,
            'hosting_account_id' => $account->id,
            'domain_id' => $domain->id,
            'display_name' => 'Free Mailbox',
            'local_part' => 'info',
            'address' => 'info@phase3-mail.test',
            'password_hash' => Hash::make('password123'),
            'quota_mb' => 2048,
            'status' => 'active',
            'maildir_path' => 'hosting/1/phase3-mail.test/info',
            'credentials_issued_at' => now(),
            'incoming_token' => 'token-free-1',
            'inbound_enabled' => true,
            'outbound_enabled' => true,
            'outbound_provider' => 'smtp',
            'is_paid' => false,
        ]);

        $this->actingAs($user)
            ->postJson('/api/email/create', [
                'hosting_account_id' => $account->id,
                'domain_id' => $domain->id,
                'local_part' => 'sales',
                'display_name' => 'Sales',
                'password' => 'password123',
            ])
            ->assertCreated()
            ->assertJsonPath('data.mailbox.is_paid', true)
            ->assertJsonPath('data.usage.extra_count', 1)
            ->assertJsonPath('data.invoice.total_amount', '5.00');

        $this->assertDatabaseHas('mailboxes', [
            'hosting_account_id' => $account->id,
            'address' => 'sales@phase3-mail.test',
            'is_paid' => true,
        ]);

        $this->assertDatabaseHas('hosting_billing_invoices', [
            'hosting_account_id' => $account->id,
            'invoice_type' => HostingBillingInvoice::TYPE_EMAIL_ADDON,
            'status' => HostingBillingInvoice::STATUS_PENDING,
            'total_amount' => 5,
        ]);
    }

    public function test_mailbox_delete_requires_account_ownership(): void
    {
        $owner = User::factory()->create();
        $otherUser = User::factory()->create();
        $product = $this->makeProduct([
            'name' => 'Starter Delete',
            'slug' => 'starter-delete-phase3',
            'max_email_accounts' => 1,
        ]);
        $account = $this->makeAccount($owner, $product);
        $domain = $this->makeDomain($owner, $account, 'delete-mail.test');

        $mailbox = Mailbox::create([
            'user_id' => $owner->id,
            'hosting_account_id' => $account->id,
            'domain_id' => $domain->id,
            'display_name' => 'Owner Mailbox',
            'local_part' => 'admin',
            'address' => 'admin@delete-mail.test',
            'password_hash' => Hash::make('password123'),
            'quota_mb' => 2048,
            'status' => 'active',
            'maildir_path' => 'hosting/1/delete-mail.test/admin',
            'credentials_issued_at' => now(),
            'incoming_token' => 'token-delete-1',
            'inbound_enabled' => true,
            'outbound_enabled' => true,
            'outbound_provider' => 'smtp',
            'is_paid' => false,
        ]);

        $this->actingAs($otherUser)
            ->deleteJson('/api/email/delete', [
                'mailbox_id' => $mailbox->id,
            ])
            ->assertForbidden();
    }

    private function makeProduct(array $overrides = []): HostingProduct
    {
        return HostingProduct::create(array_merge([
            'name' => 'Shared Phase 3',
            'slug' => 'shared-phase-3-' . str()->random(8),
            'category' => HostingProduct::CATEGORY_SHARED,
            'type' => HostingProduct::TYPE_SINGLE_DOMAIN,
            'price_monthly' => 10,
            'price_quarterly' => 30,
            'price_yearly' => 120,
            'price_biennial' => 240,
            'currency' => 'GHS',
            'disk_gb' => 10,
            'max_domains' => 1,
            'max_databases' => 2,
            'max_email_accounts' => 5,
            'is_active' => true,
            'is_visible' => true,
        ], $overrides));
    }

    private function makeAccount(User $user, HostingProduct $product, array $overrides = []): HostingAccount
    {
        return HostingAccount::unguarded(function () use ($user, $product, $overrides) {
            return HostingAccount::create(array_merge([
                'user_id' => $user->id,
                'hosting_product_id' => $product->id,
                'username' => 'acct' . random_int(1000, 9999),
                'primary_domain' => 'phase3.example.test',
                'type' => HostingAccount::TYPE_SHARED,
                'status' => HostingAccount::STATUS_ACTIVE,
                'allocated_disk_gb' => (int) ($product->disk_gb ?? 0),
                'php_version' => '8.4',
                'cpu_limit_percent' => 50,
                'memory_limit_mb' => 512,
                'process_limit' => 10,
                'io_limit_mb' => 5,
                'inode_limit' => 50000,
                'resource_status' => HostingAccount::RESOURCE_STATUS_ACTIVE,
                'resource_limits' => [
                    'disk_gb' => (int) ($product->disk_gb ?? 0),
                    'max_domains' => $product->max_domains,
                    'max_databases' => $product->max_databases,
                    'max_email_accounts' => $product->max_email_accounts,
                ],
            ], $overrides));
        });
    }

    private function makeDomain(User $user, HostingAccount $account, string $host): Domain
    {
        return Domain::create([
            'user_id' => $user->id,
            'website_id' => null,
            'hosting_account_id' => $account->id,
            'host' => $host,
            'type' => 'custom',
            'source' => 'hosting',
            'status' => 'verified',
            'onboarding_mode' => Domain::MODE_NS_AUTO,
            'onboarding_state' => Domain::STATE_ACTIVE,
            'dns_mode' => 'managed',
            'verified_at' => now(),
            'active_at' => now(),
        ]);
    }
}