<?php

declare(strict_types=1);

namespace KTXT\Unit\Service;

use KTXC\Context\IdentityContextInterface;
use KTXC\Context\TenantContextInterface;
use KTXC\Models\Tenant\TenantConfiguration;
use KTXC\Service\FirewallStatusService;
use KTXC\Service\FirewallSettingsService;
use KTXC\Service\SystemFirewallLogService;
use KTXC\Service\SystemFirewallStatusService;
use KTXC\Service\TenantFirewallLogService;
use KTXC\Service\TenantFirewallStatusService;
use KTXC\Service\TenantService;
use KTXC\Stores\FirewallStore;
use KTXF\Event\EventDispatcherInterface;
use PHPUnit\Framework\Attributes\AllowMockObjectsWithoutExpectations;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;

#[AllowMockObjectsWithoutExpectations]
final class FirewallStatusServicesTest extends TestCase
{
    #[TestDox('Tenant metrics and configuration derive their tenant context')]
    public function testTenantStatus(): void
    {
        $store = $this->createMock(FirewallStore::class);
        $tenant = $this->createStub(TenantContextInterface::class);
        $tenant->method('requireIdentifier')->willReturn('tenant-a');
        $tenant->method('configuration')->willReturn(
            (new TenantConfiguration())->jsonDeserialize([
                'firewall' => ['enabled' => false, 'maxAuthFailures' => 8],
            ])
        );
        $identity = $this->createStub(IdentityContextInterface::class);
        $identity->method('hasPermission')->willReturn(true);
        $store->expects(self::once())
            ->method('countBlockedRequests')
            ->with('tenant-a', self::isInstanceOf(\DateTimeImmutable::class))
            ->willReturn(7);
        $service = new TenantFirewallStatusService(
            new FirewallStatusService($store), $tenant, $identity, $this->settings()
        );

        self::assertSame(7, $service->metrics('2026-08-01T00:00:00+00:00')['blockedRequests']);
        self::assertFalse($service->configuration()['enabled']);
        self::assertSame(8, $service->configuration()['maxAuthFailures']);
    }

    #[TestDox('System metrics and maintenance status expose operational state')]
    public function testSystemStatus(): void
    {
        $store = $this->createMock(FirewallStore::class);
        $identity = $this->createStub(IdentityContextInterface::class);
        $identity->method('hasPermission')->willReturn(true);
        $store->expects(self::once())
            ->method('countSystemBlockedRequests')
            ->with('tenant-a', null)
            ->willReturn(12);
        $store->method('maintenanceStatus')->willReturn(['status' => 'success']);
        $service = new SystemFirewallStatusService(
            new FirewallStatusService($store), $identity, $this->settings()
        );

        self::assertSame(12, $service->metrics('tenant-a')['blockedRequests']);
        self::assertSame('success', $service->maintenanceStatus()['status']);
    }

    #[TestDox('Maintenance reports an explicit state before its first run')]
    public function testNeverRunStatus(): void
    {
        $store = $this->createStub(FirewallStore::class);

        self::assertSame('never_run', (new FirewallStatusService($store))->maintenanceStatus()['status']);
    }

    #[TestDox('Status reads require their dedicated permissions')]
    public function testPermissions(): void
    {
        $store = $this->createMock(FirewallStore::class);
        $identity = $this->createStub(IdentityContextInterface::class);
        $identity->method('hasPermission')->willReturn(false);
        $tenant = $this->createStub(TenantContextInterface::class);
        $store->expects(self::never())->method('countBlockedRequests');
        $store->expects(self::never())->method('maintenanceStatus');

        try {
            (new TenantFirewallStatusService(
                new FirewallStatusService($store), $tenant, $identity, $this->settings()
            ))->metrics();
            self::fail('Tenant metrics should be rejected.');
        } catch (\RuntimeException $error) {
            self::assertStringContainsString(TenantFirewallLogService::PERMISSION_READ, $error->getMessage());
        }

        $this->expectExceptionMessage(SystemFirewallStatusService::PERMISSION_MAINTENANCE_READ);
        (new SystemFirewallStatusService(
            new FirewallStatusService($store), $identity, $this->settings()
        ))->maintenanceStatus();
    }

    #[TestDox('Metrics reject invalid dates before querying storage')]
    public function testMetricValidation(): void
    {
        $store = $this->createMock(FirewallStore::class);
        $store->expects(self::never())->method('countSystemBlockedRequests');
        $this->expectException(\InvalidArgumentException::class);

        (new FirewallStatusService($store))->systemMetrics(null, 'not-a-date');
    }

    private function settings(): FirewallSettingsService
    {
        return new FirewallSettingsService(
            $this->createStub(TenantService::class),
            $this->createStub(EventDispatcherInterface::class)
        );
    }
}