<?php

use App\Models\BackupItem;
use App\Models\BackupSchedule;
use App\Models\BackupScheduleRun;
use App\Models\BackupSet;
use App\Models\PolicyVersion;
use App\Models\Tenant;
use App\Services\Graph\GraphClientInterface;
use App\Services\Graph\GraphResponse;
use App\Services\Inventory\InventoryMetaSanitizer;
use App\Services\Inventory\InventoryMissingService;
use App\Services\Inventory\InventorySyncService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Cache;

uses(RefreshDatabase::class);

function fakeGraphClient(array $policiesByType = [], array $failedTypes = [], ?Throwable $throwable = null): GraphClientInterface
{
    return new class($policiesByType, $failedTypes, $throwable) implements GraphClientInterface
    {
        public function __construct(
            private readonly array $policiesByType,
            private readonly array $failedTypes,
            private readonly ?Throwable $throwable,
        ) {}

        public function listPolicies(string $policyType, array $options = []): GraphResponse
        {
            if ($this->throwable instanceof Throwable) {
                throw $this->throwable;
            }

            if (in_array($policyType, $this->failedTypes, true)) {
                return new GraphResponse(false, [], 403, ['error' => ['code' => 'Forbidden', 'message' => 'forbidden']], [], []);
            }

            return new GraphResponse(true, $this->policiesByType[$policyType] ?? []);
        }

        public function getPolicy(string $policyType, string $policyId, array $options = []): GraphResponse
        {
            return new GraphResponse(true, []);
        }

        public function getOrganization(array $options = []): GraphResponse
        {
            return new GraphResponse(true, []);
        }

        public function applyPolicy(string $policyType, string $policyId, array $payload, array $options = []): GraphResponse
        {
            return new GraphResponse(true, []);
        }

        public function getServicePrincipalPermissions(array $options = []): GraphResponse
        {
            return new GraphResponse(true, []);
        }

        public function request(string $method, string $path, array $options = []): GraphResponse
        {
            return new GraphResponse(true, []);
        }
    };
}

test('inventory sync upserts and updates last_seen fields without duplicates', function () {
    $tenant = Tenant::factory()->create();

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [
            ['id' => 'cfg-1', 'displayName' => 'Config 1', '@odata.type' => '#microsoft.graph.deviceConfiguration'],
        ],
    ]));

    $service = app(InventorySyncService::class);

    $selection = [
        'policy_types' => ['deviceConfiguration'],
        'categories' => ['Configuration'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ];

    $runA = $service->syncNow($tenant, $selection);
    expect($runA->status)->toBe('success');

    $item = \App\Models\InventoryItem::query()->where('tenant_id', $tenant->id)->first();
    expect($item)->not->toBeNull();
    expect($item->external_id)->toBe('cfg-1');
    expect($item->last_seen_run_id)->toBe($runA->id);

    $runB = $service->syncNow($tenant, $selection);

    $items = \App\Models\InventoryItem::query()->where('tenant_id', $tenant->id)->get();
    expect($items)->toHaveCount(1);

    $items->first()->refresh();
    expect($items->first()->last_seen_run_id)->toBe($runB->id);
});

test('meta whitelist drops unknown keys without failing', function () {
    $tenant = Tenant::factory()->create();

    $sanitizer = app(InventoryMetaSanitizer::class);

    $meta = $sanitizer->sanitize([
        'odata_type' => '#microsoft.graph.deviceConfiguration',
        'etag' => 'W/\"123\"',
        'scope_tag_ids' => ['0', 'tag-1'],
        'assignment_target_count' => '5',
        'warnings' => ['ok'],
        'unknown_key' => 'should_not_persist',
    ]);

    $item = \App\Models\InventoryItem::query()->create([
        'tenant_id' => $tenant->id,
        'policy_type' => 'deviceConfiguration',
        'external_id' => 'cfg-1',
        'display_name' => 'Config 1',
        'meta_jsonb' => $meta,
        'last_seen_at' => now(),
        'last_seen_run_id' => null,
    ]);

    $item->refresh();

    $stored = is_array($item->meta_jsonb) ? $item->meta_jsonb : [];

    expect($stored)->not->toHaveKey('unknown_key');
    expect($stored['assignment_target_count'] ?? null)->toBe(5);
});

test('inventory missing is derived from latest completed run and low confidence on partial runs', function () {
    $tenant = Tenant::factory()->create();

    $selection = [
        'policy_types' => ['deviceConfiguration'],
        'categories' => ['Configuration'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ];

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [
            ['id' => 'cfg-1', 'displayName' => 'Config 1', '@odata.type' => '#microsoft.graph.deviceConfiguration'],
        ],
    ]));

    app(InventorySyncService::class)->syncNow($tenant, $selection);

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [],
    ]));

    app(InventorySyncService::class)->syncNow($tenant, $selection);

    $missingService = app(InventoryMissingService::class);
    $result = $missingService->missingForSelection($tenant, $selection);

    expect($result['missing'])->toHaveCount(1);
    expect($result['lowConfidence'])->toBeFalse();

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [],
    ], failedTypes: ['deviceConfiguration']));

    app(InventorySyncService::class)->syncNow($tenant, $selection);

    $result2 = $missingService->missingForSelection($tenant, $selection);
    expect($result2['missing'])->toHaveCount(1);
    expect($result2['lowConfidence'])->toBeTrue();
});

test('selection isolation: run for selection Y does not affect selection X missing', function () {
    $tenant = Tenant::factory()->create();

    $selectionX = [
        'policy_types' => ['deviceConfiguration'],
        'categories' => ['Configuration'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ];

    $selectionY = [
        'policy_types' => ['deviceCompliancePolicy'],
        'categories' => ['Compliance'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ];

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [
            ['id' => 'cfg-1', 'displayName' => 'Config 1', '@odata.type' => '#microsoft.graph.deviceConfiguration'],
        ],
        'deviceCompliancePolicy' => [
            ['id' => 'cmp-1', 'displayName' => 'Compliance 1', '@odata.type' => '#microsoft.graph.deviceCompliancePolicy'],
        ],
    ]));

    $service = app(InventorySyncService::class);
    $service->syncNow($tenant, $selectionX);

    $service->syncNow($tenant, $selectionY);

    $missingService = app(InventoryMissingService::class);
    $resultX = $missingService->missingForSelection($tenant, $selectionX);

    expect($resultX['missing'])->toHaveCount(0);
});

test('lock prevents overlapping runs for same tenant and selection', function () {
    $tenant = Tenant::factory()->create();

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [],
    ]));

    $service = app(InventorySyncService::class);

    $selection = [
        'policy_types' => ['deviceConfiguration'],
        'categories' => ['Configuration'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ];

    $hash = app(\App\Services\Inventory\InventorySelectionHasher::class)->hash($selection);
    $lock = Cache::lock("inventory_sync:tenant:{$tenant->id}:selection:{$hash}", 900);
    expect($lock->get())->toBeTrue();

    $run = $service->syncNow($tenant, $selection);

    expect($run->status)->toBe('skipped');
    expect($run->error_codes)->toContain('lock_contended');

    $lock->release();
});

test('inventory sync does not create snapshot or backup rows', function () {
    $tenant = Tenant::factory()->create();

    $baseline = [
        'policy_versions' => PolicyVersion::query()->count(),
        'backup_sets' => BackupSet::query()->count(),
        'backup_items' => BackupItem::query()->count(),
        'backup_schedules' => BackupSchedule::query()->count(),
        'backup_schedule_runs' => BackupScheduleRun::query()->count(),
    ];

    app()->instance(GraphClientInterface::class, fakeGraphClient([
        'deviceConfiguration' => [],
    ]));

    $service = app(InventorySyncService::class);

    $service->syncNow($tenant, [
        'policy_types' => ['deviceConfiguration'],
        'categories' => ['Configuration'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ]);

    expect(PolicyVersion::query()->count())->toBe($baseline['policy_versions']);
    expect(BackupSet::query()->count())->toBe($baseline['backup_sets']);
    expect(BackupItem::query()->count())->toBe($baseline['backup_items']);
    expect(BackupSchedule::query()->count())->toBe($baseline['backup_schedules']);
    expect(BackupScheduleRun::query()->count())->toBe($baseline['backup_schedule_runs']);
});

test('run error persistence is safe and does not include bearer tokens', function () {
    $tenant = Tenant::factory()->create();

    $throwable = new RuntimeException('Graph failed: Bearer abc.def.ghi');

    app()->instance(GraphClientInterface::class, fakeGraphClient(throwable: $throwable));

    $service = app(InventorySyncService::class);

    $run = $service->syncNow($tenant, [
        'policy_types' => ['deviceConfiguration'],
        'categories' => ['Configuration'],
        'include_foundations' => false,
        'include_dependencies' => false,
    ]);

    expect($run->status)->toBe('failed');

    $context = is_array($run->error_context) ? $run->error_context : [];
    $message = (string) ($context['message'] ?? '');

    expect($message)->not->toContain('abc.def.ghi');
    expect($message)->toContain('Bearer [REDACTED]');
});