<?php

use App\Enums\DbStatusFieldEnum;
use App\Enums\PricelistFileLineStatusEnum;
use App\Enums\PricelistFileStatusEnum;
use App\Enums\PricelistWorkflowStep;
use App\Jobs\PricelistExecutionJob;
use App\Models\PriceList;
use App\Models\PricelistFile;
use App\Models\PricelistFileLine;
use App\Models\Producer;
use App\Models\Product;
use App\Models\ProductGroup;
use App\Models\Supplier;
use App\Services\PriceListService;
use App\Services\PricelistFileProcessService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Tests\TestCase;

uses(TestCase::class, RefreshDatabase::class);

function revertTestFile(Supplier $supplier): PricelistFile
{
    return PricelistFile::create([
        'filename' => 'arlista.xlsx',
        'supplier_id' => $supplier->id,
        'available_date' => now()->addWeek()->toDateString(),
        'status' => PricelistFileStatusEnum::inprogress,
        'workflow_steps' => [
            ['name' => PricelistWorkflowStep::Validation->value, 'label' => 'Validálás', 'status' => 'completed'],
            ['name' => PricelistWorkflowStep::Approval->value, 'label' => 'Jóváhagyás', 'status' => 'completed'],
            ['name' => PricelistWorkflowStep::Execution->value, 'label' => 'Végrehajtás', 'status' => 'inprogress'],
        ],
    ]);
}

function revertTestPayload(array $overrides = []): array
{
    $h = PriceListService::EXPECTED_HEADERS;

    return array_merge([
        $h[0] => 'SKU-1',
        $h[1] => 'Főcsoport',
        $h[2] => 'Alcsoport 1',
        $h[4] => 'Új név',
        $h[5] => '6',
        $h[6] => '1,5',
        $h[7] => 'l',
        $h[8] => 'Teszt Gyártó',
        $h[9] => 'kart',
        $h[10] => '6',
        $h[11] => 'db',
        $h[12] => '0,27',
        $h[14] => '990',
        $h[20] => 'Megjegyzés',
        $h[21] => '',
        $h[22] => '',
    ], $overrides);
}

function revertTestLine(PricelistFile $file, PricelistFileLineStatusEnum $status, array $payload, array $attributes = []): PricelistFileLine
{
    return PricelistFileLine::create(array_merge([
        'pricelist_file_id' => $file->id,
        'row_number' => 5,
        'status' => $status,
        'payload' => $payload,
    ], $attributes));
}

/**
 * Olyan service, amelynek a visszaállítása a létrehozott termékek fázisában elhal -
 * az árak és a frissítések ekkor már visszaálltak.
 */
function failingRevertService(): PricelistFileProcessService
{
    return new class(app(PriceListService::class)) extends PricelistFileProcessService
    {
        protected function revertCreatedProducts(PricelistFile $pricelistFile): void
        {
            throw new RuntimeException('Szimulált visszaállítási hiba.');
        }
    };
}

beforeEach(function () {
    $this->supplier = Supplier::factory()->create();
    $this->group = ProductGroup::create(['name' => 'Alcsoport 1', 'type' => 'F', 'status' => DbStatusFieldEnum::active, 'canSee' => 1]);
    $this->producer = Producer::create(['name' => 'Teszt Gyártó', 'status' => DbStatusFieldEnum::active, 'canSee' => 1]);
    $this->service = app(PricelistFileProcessService::class);
});

test('a visszavonás visszaállítja a frissített terméket a snapshotból', function () {
    $file = revertTestFile($this->supplier);

    $product = Product::create([
        'name' => 'Régi név',
        'supplierProductNumber' => 'SKU-1',
        'supplier_id' => $this->supplier->id,
        'producer_id' => $this->producer->id,
        'product_group_id' => $this->group->id,
        'unitValue' => 1,
        'note' => '',
        'vat' => 5,
        'status' => DbStatusFieldEnum::active,
        'canSee' => 1,
    ]);

    $line = revertTestLine($file, PricelistFileLineStatusEnum::updated, revertTestPayload(), [
        'product_id' => $product->id,
        'product_group_id' => $this->group->id,
        'producer_id' => $this->producer->id,
    ]);

    $this->service->execute($file);
    expect($product->refresh()->name)->toBe('Új név');

    expect($this->service->revert($file->refresh()))->toBeTrue();

    $file->refresh();

    expect($product->refresh()->name)->toBe('Régi név')
        ->and((float) $product->vat)->toBe(5.0)
        ->and($line->refresh()->applied_snapshot)->toBeNull()
        ->and($file->status)->toBe(PricelistFileStatusEnum::closed)
        ->and($file->stepStatus(PricelistWorkflowStep::Execution))->toBe('reverted')
        ->and(PriceList::find($file->price_list_id)->status)->toBe(DbStatusFieldEnum::deleted)
        ->and(DB::table('price_list_prices')->count())->toBe(0);
});

test('a visszavonás kivonja a forgalomból a létrehozott terméket', function () {
    $file = revertTestFile($this->supplier);

    revertTestLine($file, PricelistFileLineStatusEnum::new_product, revertTestPayload([
        PriceListService::EXPECTED_HEADERS[0] => 'SKU-NEW',
    ]), ['product_group_id' => $this->group->id, 'producer_id' => $this->producer->id]);

    $this->service->execute($file);

    $productId = Product::where('supplierProductNumber', 'SKU-NEW')->value('id');

    $this->service->revert($file->refresh());

    $product = Product::withTrashed()->find($productId);

    expect($product)->not->toBeNull()             // nem fizikai törlés
        ->and($product->trashed())->toBeTrue()
        ->and($product->status)->toBe(DbStatusFieldEnum::deleted)
        ->and((bool) $product->canSee)->toBeFalse();
});

test('a végrehajtás óta kézzel módosított terméket kihagyja és jelenti', function () {
    $file = revertTestFile($this->supplier);

    $product = Product::create([
        'name' => 'Régi név',
        'supplierProductNumber' => 'SKU-1',
        'supplier_id' => $this->supplier->id,
        'producer_id' => $this->producer->id,
        'product_group_id' => $this->group->id,
        'unitValue' => 1,
        'note' => '',
        'status' => DbStatusFieldEnum::active,
        'canSee' => 1,
    ]);

    $line = revertTestLine($file, PricelistFileLineStatusEnum::updated, revertTestPayload(), [
        'product_id' => $product->id,
        'product_group_id' => $this->group->id,
        'producer_id' => $this->producer->id,
    ]);

    $this->service->execute($file);

    // Kézi módosítás a végrehajtás után. Az updated_at-et explicit állítjuk, mert a
    // MySQL timestamp másodperc pontosságú, és a teszt ennél gyorsabban futna le.
    $product->update(['name' => 'Kézzel átírt név', 'updated_at' => now()->addMinute()]);

    $this->service->revert($file->refresh());

    $file->refresh();

    expect($product->refresh()->name)->toBe('Kézzel átírt név')   // NEM írtuk felül
        ->and($file->file_meta['revert']['skipped_count'])->toBe(1)
        ->and($file->file_meta['revert']['skipped'][0]['row_number'])->toBe(5)
        ->and($line->refresh()->validation_messages['revert'])->toContain('módosult')
        ->and($file->status)->toBe(PricelistFileStatusEnum::closed);
});

test('a visszavonás megismételhető, nem borul fel az állapot', function () {
    $file = revertTestFile($this->supplier);

    revertTestLine($file, PricelistFileLineStatusEnum::new_product, revertTestPayload([
        PriceListService::EXPECTED_HEADERS[0] => 'SKU-NEW',
    ]), ['product_group_id' => $this->group->id, 'producer_id' => $this->producer->id]);

    $this->service->execute($file);

    $this->service->revert($file->refresh());
    $this->service->revert($file->refresh());

    expect(Product::withTrashed()->where('supplierProductNumber', 'SKU-NEW')->count())->toBe(1)
        ->and(DB::table('price_list_prices')->count())->toBe(0)
        ->and($file->refresh()->status)->toBe(PricelistFileStatusEnum::closed);
});

test('a sikertelen visszaállítás execution_failed-be tesz és megnyitja a kényszerlezárást', function () {
    $file = revertTestFile($this->supplier);

    revertTestLine($file, PricelistFileLineStatusEnum::new_product, revertTestPayload([
        PriceListService::EXPECTED_HEADERS[0] => 'SKU-NEW',
    ]), ['product_group_id' => $this->group->id, 'producer_id' => $this->producer->id]);

    $this->service->execute($file);

    expect(failingRevertService()->revert($file->refresh()))->toBeFalse();

    $file->refresh();

    expect($file->status)->toBe(PricelistFileStatusEnum::execution_failed)
        ->and($file->file_meta['revert']['attempts'])->toBe(1)
        ->and($file->file_meta['revert']['last_status'])->toBe('failed')
        ->and($file->file_meta['revert']['last_error'])->toContain('Szimulált')
        ->and($file->canBeForceClosed())->toBeTrue();
});

test('kényszerlezárás nem indítható sikertelen visszaállítási kísérlet nélkül', function () {
    $file = revertTestFile($this->supplier);

    revertTestLine($file, PricelistFileLineStatusEnum::new_product, revertTestPayload([
        PriceListService::EXPECTED_HEADERS[0] => 'SKU-NEW',
    ]), ['product_group_id' => $this->group->id, 'producer_id' => $this->producer->id]);

    $this->service->execute($file);
    $this->service->updateStepStatus($file, PricelistWorkflowStep::Execution, 'failed', 'Hiba.');

    $file->refresh();

    expect($file->status)->toBe(PricelistFileStatusEnum::execution_failed)
        ->and($file->canBeForceClosed())->toBeFalse()
        ->and($this->service->forceClose($file, 'Csak úgy.'))->toBeFalse()
        ->and($file->refresh()->status)->toBe(PricelistFileStatusEnum::execution_failed);
});

test('a kényszerlezárás rögzíti az indoklást és felszabadítja a fájlt', function () {
    $file = revertTestFile($this->supplier);

    revertTestLine($file, PricelistFileLineStatusEnum::new_product, revertTestPayload([
        PriceListService::EXPECTED_HEADERS[0] => 'SKU-NEW',
    ]), ['product_group_id' => $this->group->id, 'producer_id' => $this->producer->id]);

    $this->service->execute($file);
    failingRevertService()->revert($file->refresh());

    expect($this->service->forceClose($file->refresh(), 'Kézzel rendezzük az adatokat.'))->toBeTrue();

    $file->refresh();

    expect($file->status)->toBe(PricelistFileStatusEnum::closed)
        ->and($file->file_meta['force_close']['reason'])->toBe('Kézzel rendezzük az adatokat.')
        ->and($file->file_meta['force_close']['revert_error'])->toContain('Szimulált');
});

test('az elakadt végrehajtás észlelhető és döntést kér', function () {
    $file = revertTestFile($this->supplier);

    expect($file->isExecutionStuck())->toBeFalse();

    // A heartbeat (updated_at) nyers frissítése: az Eloquent felülírná a mostani időre.
    DB::table('pricelist_files')
        ->where('id', $file->id)
        ->update(['updated_at' => now()->subMinutes(PricelistFile::STUCK_AFTER_MINUTES + 5)]);

    $file->refresh();

    expect($file->isExecutionStuck())->toBeTrue()
        ->and($file->needsExecutionDecision())->toBeTrue();
});

test('a job failed() hookja akkor is execution_failed-be teszi a fájlt, ha a catch nem futott le', function () {
    $file = revertTestFile($this->supplier);

    // Worker timeout / memórialimit szimulálása: a handle() catch ága ilyenkor nem fut.
    (new PricelistExecutionJob($file))->failed(new RuntimeException('Job timeout.'));

    $file->refresh();

    expect($file->status)->toBe(PricelistFileStatusEnum::execution_failed)
        ->and($file->stepStatus(PricelistWorkflowStep::Execution))->toBe('failed')
        ->and($file->needsExecutionDecision())->toBeTrue();
});