<?php

declare(strict_types=1);

use App\Jobs\GenerateReviewPackJob;
use App\Models\Finding;
use App\Models\OperationRun;
use App\Models\ReviewPack;
use App\Models\StoredReport;
use App\Models\Tenant;
use App\Notifications\OperationRunCompleted;
use App\Notifications\OperationRunQueued;
use App\Services\ReviewPackService;
use App\Support\OperationRunOutcome;
use App\Support\OperationRunStatus;
use App\Support\OperationRunType;
use App\Support\ReviewPackStatus;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Notification;
use Illuminate\Support\Facades\Queue;
use Illuminate\Support\Facades\Storage;

uses(RefreshDatabase::class);

beforeEach(function (): void {
    Storage::fake('exports');
});

// ─── Helper ──────────────────────────────────────────────────

function seedTenantWithData(Tenant $tenant): void
{
    StoredReport::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'report_type' => StoredReport::REPORT_TYPE_PERMISSION_POSTURE,
        'payload' => [
            'posture_score' => 86,
            'required_count' => 14,
            'granted_count' => 12,
            'permissions' => [
                ['key' => 'DeviceManagementConfiguration.ReadWrite.All', 'status' => 'granted'],
            ],
        ],
    ]);

    StoredReport::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'report_type' => StoredReport::REPORT_TYPE_ENTRA_ADMIN_ROLES,
        'payload' => [
            'roles' => [
                [
                    'displayName' => 'Global Administrator',
                    'userPrincipalName' => 'admin@contoso.com',
                    'role_template_id' => '62e90394-69f5-4237-9190-012177145e10',
                ],
            ],
        ],
    ]);

    Finding::factory()
        ->count(3)
        ->create(['tenant_id' => (int) $tenant->getKey()]);
}

// ─── Happy Path ──────────────────────────────────────────────

it('generates a review pack end-to-end (happy path)', function (): void {
    [$user, $tenant] = createUserWithTenant();

    seedTenantWithData($tenant);
    Notification::fake();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user, [
        'include_pii' => true,
        'include_operations' => true,
    ]);

    expect($pack)->toBeInstanceOf(ReviewPack::class);
    expect($pack->status)->toBe(ReviewPackStatus::Queued->value);

    // Dispatch the queued job synchronously
    $job = new GenerateReviewPackJob(
        reviewPackId: (int) $pack->getKey(),
        operationRunId: (int) $pack->operation_run_id,
    );
    app()->call([$job, 'handle']);

    $pack->refresh();

    expect($pack->status)->toBe(ReviewPackStatus::Ready->value);
    expect($pack->sha256)->toBeString()->not->toBeEmpty();
    expect($pack->file_size)->toBeGreaterThan(0);
    expect($pack->file_path)->toBeString()->not->toBeEmpty();
    expect($pack->file_disk)->toBe('exports');
    expect($pack->generated_at)->not->toBeNull();
    expect($pack->expires_at)->not->toBeNull();
    expect($pack->fingerprint)->toBeString()->not->toBeEmpty();
    expect($pack->summary)->toBeArray();
    expect($pack->summary['finding_count'])->toBe(3);
    expect($pack->summary['report_count'])->toBe(2);

    // File exists on disk
    Storage::disk('exports')->assertExists($pack->file_path);

    // OperationRun completed
    $opRun = OperationRun::query()->find($pack->operation_run_id);
    expect($opRun->status)->toBe(OperationRunStatus::Completed->value);
    expect($opRun->outcome)->toBe(OperationRunOutcome::Succeeded->value);

    // Notification sent (standard OperationRunCompleted via OperationRunService)
    Notification::assertSentTo($user, OperationRunCompleted::class);
});

// ─── Failure Path ──────────────────────────────────────────────

it('marks pack as failed when generation throws an exception', function (): void {
    [$user, $tenant] = createUserWithTenant();

    Notification::fake();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user);

    // Replace the exports disk with a mock that throws on put()
    $fakeDisk = Mockery::mock(\Illuminate\Contracts\Filesystem\Filesystem::class);
    $fakeDisk->shouldReceive('put')
        ->andThrow(new \RuntimeException('Simulated storage failure'));

    Storage::shouldReceive('disk')
        ->with('exports')
        ->andReturn($fakeDisk);

    $job = new GenerateReviewPackJob(
        reviewPackId: (int) $pack->getKey(),
        operationRunId: (int) $pack->operation_run_id,
    );

    try {
        app()->call([$job, 'handle']);
    } catch (\RuntimeException) {
        // Expected — the job re-throws after marking failed
    }

    $pack->refresh();

    expect($pack->status)->toBe(ReviewPackStatus::Failed->value);

    $opRun = OperationRun::query()->find($pack->operation_run_id);
    expect($opRun->status)->toBe(OperationRunStatus::Completed->value);
    expect($opRun->outcome)->toBe(OperationRunOutcome::Failed->value);
    expect($opRun->failure_summary)->toBeArray();
    expect($opRun->failure_summary[0]['code'])->toBe('generation_error');

    Notification::assertSentTo($user, OperationRunCompleted::class);
});

// ─── Empty Reports ──────────────────────────────────────────────

it('succeeds with empty reports and findings', function (): void {
    [$user, $tenant] = createUserWithTenant();

    Notification::fake();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user);

    $job = new GenerateReviewPackJob(
        reviewPackId: (int) $pack->getKey(),
        operationRunId: (int) $pack->operation_run_id,
    );
    app()->call([$job, 'handle']);

    $pack->refresh();

    expect($pack->status)->toBe(ReviewPackStatus::Ready->value);
    expect($pack->summary['finding_count'])->toBe(0);
    expect($pack->summary['report_count'])->toBe(0);
    Storage::disk('exports')->assertExists($pack->file_path);
});

// ─── PII Redaction ──────────────────────────────────────────────

it('redacts PII when include_pii is false', function (): void {
    [$user, $tenant] = createUserWithTenant();

    seedTenantWithData($tenant);
    Notification::fake();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user, ['include_pii' => false]);

    $job = new GenerateReviewPackJob(
        reviewPackId: (int) $pack->getKey(),
        operationRunId: (int) $pack->operation_run_id,
    );
    app()->call([$job, 'handle']);

    $pack->refresh();
    expect($pack->status)->toBe(ReviewPackStatus::Ready->value);

    // Read the generated ZIP to verify PII redaction
    $zipContent = Storage::disk('exports')->get($pack->file_path);
    $tempFile = tempnam(sys_get_temp_dir(), 'test-zip-');
    file_put_contents($tempFile, $zipContent);

    $zip = new ZipArchive;
    $zip->open($tempFile);

    // Check metadata.json redacts tenant name
    $metadata = json_decode($zip->getFromName('metadata.json'), true);
    expect($metadata['tenant_name'])->toBe('[REDACTED]');
    expect($metadata['options']['include_pii'])->toBeFalse();

    // Check findings.csv redacts title in rows
    $findingsCsv = $zip->getFromName('findings.csv');
    expect($findingsCsv)->toContain('[REDACTED]');

    // Check entra_admin_roles.json redacts displayName
    $entraReport = json_decode($zip->getFromName('reports/entra_admin_roles.json'), true);

    if (! empty($entraReport) && isset($entraReport['roles'])) {
        foreach ($entraReport['roles'] as $role) {
            if (isset($role['displayName'])) {
                expect($role['displayName'])->toBe('[REDACTED]');
            }
        }
    }

    $zip->close();
    unlink($tempFile);
});

// ─── ZIP Contents ──────────────────────────────────────────────

it('produces a ZIP with exactly 7 files in alphabetical order', function (): void {
    [$user, $tenant] = createUserWithTenant();

    seedTenantWithData($tenant);
    Notification::fake();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user, [
        'include_pii' => true,
        'include_operations' => true,
    ]);

    $job = new GenerateReviewPackJob(
        reviewPackId: (int) $pack->getKey(),
        operationRunId: (int) $pack->operation_run_id,
    );
    app()->call([$job, 'handle']);

    $pack->refresh();

    $zipContent = Storage::disk('exports')->get($pack->file_path);
    $tempFile = tempnam(sys_get_temp_dir(), 'test-zip-');
    file_put_contents($tempFile, $zipContent);

    $zip = new ZipArchive;
    $zip->open($tempFile);

    $files = [];
    for ($i = 0; $i < $zip->numFiles; $i++) {
        $files[] = $zip->getNameIndex($i);
    }

    $zip->close();
    unlink($tempFile);

    $expectedFiles = [
        'findings.csv',
        'hardening.json',
        'metadata.json',
        'operations.csv',
        'reports/entra_admin_roles.json',
        'reports/permission_posture.json',
        'summary.json',
    ];

    expect($files)->toHaveCount(7);
    expect($files)->toEqual($expectedFiles);
});

// ─── Service dispatches job ──────────────────────────────────

it('dispatches GenerateReviewPackJob when generate is called', function (): void {
    Queue::fake();

    [$user, $tenant] = createUserWithTenant();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user);

    Queue::assertPushed(GenerateReviewPackJob::class, function ($job) use ($pack) {
        return $job->reviewPackId === (int) $pack->getKey();
    });
});

it('sends queued database notification when review pack generation is requested', function (): void {
    Queue::fake();
    Notification::fake();

    [$user, $tenant] = createUserWithTenant();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $service->generate($tenant, $user);

    Notification::assertSentTo($user, OperationRunQueued::class);
});

// ─── OperationRun Type ──────────────────────────────────────────

it('creates an OperationRun of type review_pack_generate', function (): void {
    Queue::fake();

    [$user, $tenant] = createUserWithTenant();

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);
    $pack = $service->generate($tenant, $user);

    $opRun = OperationRun::query()->find($pack->operation_run_id);
    expect($opRun)->not->toBeNull();
    expect($opRun->type)->toBe(OperationRunType::ReviewPackGenerate->value);
    expect($opRun->status)->toBe(OperationRunStatus::Queued->value);
});

// ─── Fingerprint Determinism ──────────────────────────────────

it('computes the same fingerprint for identical inputs', function (): void {
    [$user, $tenant] = createUserWithTenant();

    seedTenantWithData($tenant);

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);

    $options = ['include_pii' => true, 'include_operations' => true];
    $fp1 = $service->computeFingerprint($tenant, $options);
    $fp2 = $service->computeFingerprint($tenant, $options);

    expect($fp1)->toBe($fp2);
    expect(strlen($fp1))->toBe(64); // SHA-256 hex length
});

// ─── Different options produce different fingerprints ─────────

it('computes different fingerprints when options differ', function (): void {
    [$user, $tenant] = createUserWithTenant();

    seedTenantWithData($tenant);

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);

    $fp1 = $service->computeFingerprint($tenant, ['include_pii' => true, 'include_operations' => true]);
    $fp2 = $service->computeFingerprint($tenant, ['include_pii' => false, 'include_operations' => true]);

    expect($fp1)->not->toBe($fp2);
});

// ─── Fingerprint Dedupe (T025) ────────────────────────────────

it('returns existing ready pack when fingerprint matches (dedupe)', function (): void {
    Queue::fake();

    [$user, $tenant] = createUserWithTenant();
    seedTenantWithData($tenant);

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);

    $options = ['include_pii' => true, 'include_operations' => true];

    // Compute the fingerprint that the service would compute with normalized options
    $fingerprint = $service->computeFingerprint($tenant, $options);

    $pack1 = $service->generate($tenant, $user, $options);

    // Manually set the pack to ready with the correct fingerprint so dedupe triggers
    $pack1->update([
        'status' => ReviewPackStatus::Ready->value,
        'fingerprint' => $fingerprint,
        'expires_at' => now()->addDays(90),
    ]);

    // Second call with same options should return the existing pack
    $pack2 = $service->generate($tenant, $user, $options);

    expect($pack2->getKey())->toBe($pack1->getKey());
    expect(ReviewPack::query()->where('tenant_id', (int) $tenant->getKey())->count())->toBe(1);
});

it('allows new generation when existing pack with same fingerprint is expired', function (): void {
    Queue::fake();

    [$user, $tenant] = createUserWithTenant();
    seedTenantWithData($tenant);

    /** @var ReviewPackService $service */
    $service = app(ReviewPackService::class);

    $options = ['include_pii' => true, 'include_operations' => true];

    // Create an expired pack with a matching fingerprint
    $fingerprint = $service->computeFingerprint($tenant, ['include_pii' => true, 'include_operations' => true]);

    ReviewPack::factory()->expired()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'workspace_id' => (int) $tenant->workspace_id,
        'initiated_by_user_id' => (int) $user->getKey(),
        'fingerprint' => $fingerprint,
    ]);

    // Should create a new pack since existing is expired
    $newPack = $service->generate($tenant, $user, $options);

    expect(ReviewPack::query()->where('tenant_id', (int) $tenant->getKey())->count())->toBe(2);
    expect($newPack->status)->toBe(ReviewPackStatus::Queued->value);
});