<?php

use App\Models\Location;
use App\Models\Product;
use App\Models\ProductStockMovement;
use App\Services\ProductionService;
use App\Services\ProductStockService;
use App\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

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

function ap11MakeUser(int $adminLevel = 7): User
{
    $user = User::query()->create([
        'email' => uniqid('ap11_', true).'@test.example',
        'password' => bcrypt('password'),
    ]);
    $user->forceFill([
        'admin' => $adminLevel,
        'confirmed' => true,
        'active' => true,
        'wizard' => 100,
        'blocked' => false,
    ])->save();

    return $user->fresh();
}

/**
 * @param  array<string, mixed>  $overrides
 */
function ap11MakeProduct(string $name, array $overrides = []): Product
{
    return Product::query()->create(array_merge([
        'name' => $name,
        'title' => $name,
        'active' => true,
        'is_set' => false,
    ], $overrides));
}

test('bestand ist summe eingaenge minus ausgaenge', function () {
    $product = ap11MakeProduct('AP11-Bestand');
    $service = app(ProductStockService::class);

    $service->recordMovement($product, 'in', 100, 'Initialbestand');
    $service->recordMovement($product, 'out', 30, 'Verkauf');
    $service->recordMovement($product, 'in', 5, 'Retoure');

    expect($service->currentStock($product->id))->toBe(75);
});

test('status liefert kritisch, warnung und ok', function () {
    $service = app(ProductStockService::class);

    expect($service->productStatus(5, 20, 10))->toBe('critical')
        ->and($service->productStatus(15, 20, 10))->toBe('warning')
        ->and($service->productStatus(30, 20, 10))->toBe('ok')
        ->and($service->productStatus(0, null, null))->toBe('ok');
});

test('kritisch-zaehler beruecksichtigt nur hauptprodukte mit schwellwert', function () {
    $service = app(ProductStockService::class);

    $critical = ap11MakeProduct('AP11-Krit', ['critical_product_stock' => 10]);
    $service->recordMovement($critical, 'in', 5, 'Initialbestand');

    $ok = ap11MakeProduct('AP11-OK', ['critical_product_stock' => 10]);
    $ok->stockMovements()->create(['direction' => 'in', 'quantity' => 50, 'reason' => 'Initialbestand', 'source' => 'manual']);

    // ohne Schwellwert => nie kritisch
    ap11MakeProduct('AP11-NoThreshold');

    // Set wird ignoriert
    ap11MakeProduct('AP11-Set', ['is_set' => true, 'critical_product_stock' => 10]);

    expect($service->criticalProductCount())->toBe(1);
});

test('produktion bucht produktbestand als eingang', function () {
    $user = ap11MakeUser();
    $location = Location::factory()->create();
    $product = ap11MakeProduct('AP11-Produktion', ['no_recipe_required' => true]);

    app(ProductionService::class)->store([
        'product_id' => $product->id,
        'location_id' => $location->id,
        'produced_at' => '2026-03-01',
        'quantity' => 40,
        'notes' => null,
    ], [], $user->id);

    expect(app(ProductStockService::class)->currentStock($product->id))->toBe(40);

    $movement = ProductStockMovement::query()->where('product_id', $product->id)->where('source', 'production')->first();
    expect($movement)->not->toBeNull()
        ->and($movement->direction)->toBe('in')
        ->and((int) $movement->quantity)->toBe(40);
});

test('produktions-update korrigiert den produktbestand per differenz', function () {
    $user = ap11MakeUser();
    $location = Location::factory()->create();
    $product = ap11MakeProduct('AP11-ProdUpdate', ['no_recipe_required' => true]);

    $production = app(ProductionService::class)->store([
        'product_id' => $product->id,
        'location_id' => $location->id,
        'produced_at' => '2026-03-01',
        'quantity' => 40,
        'notes' => null,
    ], [], $user->id);

    app(ProductionService::class)->updateProduction($production, [
        'product_id' => $product->id,
        'location_id' => $location->id,
        'produced_at' => '2026-03-01',
        'quantity' => 25,
        'notes' => null,
    ], [], $user->id);

    expect(app(ProductStockService::class)->currentStock($product->id))->toBe(25);
    // append-only: zwei Bewegungen (Produktion + Korrektur)
    expect(ProductStockMovement::query()->where('product_id', $product->id)->count())->toBe(2);
});

test('uebersicht zeigt produkt und bestand', function () {
    $user = ap11MakeUser(1);
    $product = ap11MakeProduct('AP11-Liste', ['critical_product_stock' => 10]);
    app(ProductStockService::class)->recordMovement($product, 'in', 13, 'Initialbestand');

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.product-stock.index'));

    $response->assertSuccessful();
    $response->assertSee('Produktbestand');
    $response->assertSee('AP11-Liste');
    $response->assertSee('nur kritische anzeigen');
});

test('manuelle bewegung wird per http gebucht', function () {
    $user = ap11MakeUser(7);
    $product = ap11MakeProduct('AP11-HTTP');

    $this->actingAs($user, 'user');
    $response = $this->post(route('admin.inventory.product-stock.movement', $product), [
        'direction' => 'in',
        'quantity' => 12,
        'reason' => 'Initialbestand',
        'note' => 'Erstbefüllung',
    ]);

    $response->assertRedirect();
    $this->assertDatabaseHas('product_stock_movements', [
        'product_id' => $product->id,
        'direction' => 'in',
        'quantity' => 12,
        'reason' => 'Initialbestand',
    ]);
});

test('nicht-admin darf keine bewegung buchen', function () {
    $user = ap11MakeUser(1);
    $product = ap11MakeProduct('AP11-NoAdmin');

    $this->actingAs($user, 'user');
    $response = $this->post(route('admin.inventory.product-stock.movement', $product), [
        'direction' => 'in',
        'quantity' => 5,
        'reason' => 'Initialbestand',
    ]);

    $response->assertForbidden();
});

test('historie rendert und filtert nach richtung', function () {
    $user = ap11MakeUser(1);
    $product = ap11MakeProduct('AP11-Hist');
    $service = app(ProductStockService::class);
    $service->recordMovement($product, 'in', 50, 'Produktion', 'production');
    $service->recordMovement($product, 'out', 2, 'Verkauf', 'sale');

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.product-stock.history', ['direction' => 'out']));

    $response->assertSuccessful();
    $response->assertSee('Produktbestand Historie');
    $response->assertSee('Verkauf');
});