<?php

use App\Models\Country;
use App\Models\Ingredient;
use App\Models\Location;
use App\Models\MaterialQuality;
use App\Models\Product;
use App\Models\ProductIngredient;
use App\Models\Production;
use App\Models\StockEntry;
use App\Models\Supplier;
use App\Services\InventoryService;
use App\Services\ProductionService;
use App\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Validation\ValidationException;
use Laravel\Passport\Passport;
use Tests\TestCase;

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

/**
 * AP-53 (Kundenwunsch 09.09.2026): Gramm-Mengen mit drei Nachkommastellen in
 * Produktion, Wareneingang und Ausschuss; einheitliche Rundung und Anzeige.
 */
function qpUser(): User
{
    Country::query()->firstOrCreate(['code' => 'DE'], ['phone' => '00', 'en' => 'Germany', 'de' => 'Deutschland', 'es' => 'Germany', 'fr' => 'Germany', 'it' => 'Germany', 'ru' => 'Germany', 'active' => true]);
    $user = User::query()->create(['email' => uniqid('qp_', true).'@test.example', 'password' => bcrypt('password')]);
    $user->forceFill(['admin' => 7, 'confirmed' => true, 'active' => true, 'wizard' => 100, 'blocked' => false])->save();

    return $user->fresh();
}

function qpIngredient(): Ingredient
{
    return Ingredient::query()->create(['name' => 'QP-Konservierer', 'trans_name' => '', 'inci' => 'QP', 'trans_inci' => '', 'effect' => '', 'trans_effect' => '', 'active' => true, 'pos' => 0]);
}

/** Rezeptur: 0,125 g je Stück (Soll bei 1 Stück = 0,125 g). */
function qpProduct(Ingredient $ing, float $gram = 0.125): Product
{
    $product = Product::query()->create(['name' => 'QP-Produkt', 'title' => 'QP-Produkt', 'active' => true]);
    ProductIngredient::query()->create(['product_id' => $product->id, 'ingredient_id' => $ing->id, 'pos' => 0, 'gram' => $gram, 'factor' => 1.0, 'recipe_type' => 'manufacturer']);

    return $product;
}

function qpStock(Ingredient $ing, Location $location, Supplier $supplier, User $user, float $qty = 10): StockEntry
{
    return StockEntry::query()->create([
        'entry_type' => 'ingredient', 'ingredient_id' => $ing->id, 'packaging_item_id' => null,
        'supplier_id' => $supplier->id, 'location_id' => $location->id, 'unit' => 'gram',
        'ordered_by' => $user->id, 'ordered_at' => '2026-01-01', 'ordered_quantity' => $qty,
        'price_per_kg' => 1, 'status' => 'received', 'received_by' => $user->id,
        'received_at' => '2026-01-15', 'received_quantity' => $qty, 'batch_number' => 'QP-B',
        'best_before' => '2030-12-31', 'quality_id' => null,
    ]);
}

test('AP-53: eingabe-parsing — komma mit drei stellen, „0.125" als dezimalzahl, „1.500" bleibt tausend', function () {
    expect(reFormatWawiNumber('0,125'))->toBe(0.125)
        ->and(reFormatWawiNumber('1,005'))->toBe(1.005)
        ->and(reFormatWawiNumber('0.125'))->toBe(0.125)
        ->and(reFormatWawiNumber('5.12'))->toBe(5.12)
        ->and(reFormatWawiNumber('1.500'))->toBe(1500.0)
        ->and(reFormatWawiNumber('1.234,567'))->toBe(1234.567)
        ->and(roundWawiQuantity(0.1234))->toBe(0.123)
        ->and(roundWawiQuantity(0.1235))->toBe(0.124);
});

test('AP-53: anzeige — bis zu drei nachkommastellen, mindestens zwei, optional ganzzahlig', function () {
    expect(formatWawiQuantity(0.125))->toBe('0,125')
        ->and(formatWawiQuantity(12.5))->toBe('12,50')
        ->and(formatWawiQuantity(1500))->toBe('1.500,00')
        ->and(formatWawiQuantity(1.1204))->toBe('1,12')
        ->and(formatWawiQuantity(1500, 0))->toBe('1.500')
        ->and(formatWawiQuantity(0.125, 0))->toBe('0,125');
});

test('AP-53: produktion bucht 0,125 g exakt und der chargen-restbestand rechnet auf drei stellen', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    $product = qpProduct($ing);
    $stock = qpStock($ing, $location, $supplier, $user, 10);

    Passport::actingAs($user);
    $this->actingAs($user, 'user');

    $this->post(route('admin.inventory.productions.store'), [
        'save_mode' => 'complete',
        'product_id' => $product->id, 'location_id' => $location->id, 'produced_at' => '2026-09-09', 'quantity' => 1,
        'ingredient_lines' => [['ingredient_id' => $ing->id, 'batch_key' => $stock->batchGroupKey(), 'quantity_used' => '0,125']],
        'outputs' => [['product_id' => $product->id, 'quantity' => 1, 'batch_number' => 'QP1']],
    ])->assertRedirect()->assertSessionHasNoErrors();

    $production = Production::query()->where('product_id', $product->id)->sole();
    expect((float) $production->productionIngredients()->sole()->quantity_used)->toBe(0.125)
        ->and(app(InventoryService::class)->remainingByIngredient([$ing->id])[$ing->id])->toBe(9.875)
        ->and(app(ProductionService::class)->consumedByStockEntry([$stock->id])[$stock->id])->toBe(0.125);

    // Detailansicht zeigt die dritte Stelle.
    $this->get(route('admin.inventory.productions.show', $production))->assertOk()->assertSee('0,125');
});

test('AP-53: entwurf mit 1,125 g wird beim wiederöffnen als zahl übergeben (JS formatiert deutsch, nicht „1.125")', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    $product = qpProduct($ing, 1.125);
    $stock = qpStock($ing, $location, $supplier, $user, 10);

    Passport::actingAs($user);
    $this->actingAs($user, 'user');

    $this->post(route('admin.inventory.productions.store'), [
        'save_mode' => 'draft',
        'product_id' => $product->id, 'location_id' => $location->id, 'produced_at' => '2026-09-09', 'quantity' => 1,
        'ingredient_lines' => [['ingredient_id' => $ing->id, 'batch_key' => $stock->batchGroupKey(), 'quantity_used' => '1,125']],
    ])->assertRedirect()->assertSessionHasNoErrors();

    $draft = Production::query()->where('product_id', $product->id)->sole();
    $html = $this->get(route('admin.inventory.productions.edit', $draft))->assertOk()->getContent();

    // existingLines trägt den Wert als JSON-Zahl 1.125; fmtInput() macht daraus „1,125" im Feld.
    expect($html)->toContain('"quantity_used":1.125')
        ->toContain('function fmtInput(');
});

test('AP-53: toleranz bei kleinmengen — 0,131 g auf 0,125 g soll geht durch, 0,132 g nicht', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    $product = qpProduct($ing, 0.125);
    $stock = qpStock($ing, $location, $supplier, $user, 10);

    $head = ['product_id' => $product->id, 'location_id' => $location->id, 'produced_at' => '2026-09-09', 'quantity' => 1, 'notes' => null];
    $outputs = [['product_id' => $product->id, 'quantity' => 1, 'batch_number' => null]];

    // 5 % von 0,125 = 0,00625 > Sockel 0,005 → Toleranz 0,00625: 0,131 ist drin, 0,132 nicht.
    app(ProductionService::class)->store($head, [['ingredient_id' => $ing->id, 'stock_entry_id' => $stock->id, 'quantity_used' => '0,131']], $user->id, $outputs, false);

    expect(fn () => app(ProductionService::class)->store($head, [['ingredient_id' => $ing->id, 'stock_entry_id' => $stock->id, 'quantity_used' => '0,132']], $user->id, $outputs, false))
        ->toThrow(ValidationException::class);
});

test('AP-53: ausschuss akzeptiert milligramm und reduziert den restbestand auf drei stellen', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    qpStock($ing, $location, $supplier, $user, 1);

    $this->actingAs($user, 'user');
    $this->post(route('admin.inventory.stock-disposals.store'), [
        'disposal_type' => 'ingredient', 'ingredient_id' => $ing->id, 'location_id' => $location->id,
        'quantity' => '0,005', 'reason' => 'Bruch / Beschädigung', 'disposed_at' => '2026-09-09',
    ])->assertRedirect()->assertSessionHasNoErrors();

    expect(app(InventoryService::class)->remainingByIngredient([$ing->id])[$ing->id])->toBe(0.995);
});

/*
 * Prüfung AP-53 vom 10.09.2026 (pruefung-ap53-mengenpraezision-2026-09-10.md): AP53-01…04 + Punkte 4.1/4.2.
 */
test('AP53-01: die produktions-ampel bezieht toleranz-sockel und vergleichsreserve aus dem ProductionService', function () {
    $this->actingAs(qpUser(), 'user');
    $html = $this->get(route('admin.inventory.productions.create'))->assertOk()->getContent();

    expect($html)->toContain('var TOLERANCE_RATIO = 0.05;')
        ->toContain('var TOLERANCE_FLOOR = 0.005;')
        ->toContain('Math.max(soll * TOLERANCE_RATIO, TOLERANCE_FLOOR)')
        ->toContain('<= tolerance + COMPARE_EPSILON')
        ->not->toContain('Math.max(soll * 0.05, 0.05)');
});

test('AP53-02: der exakte 5-mg-sockelrand ist zulässig (0,025 auf 0,020 g), 0,026 g nicht', function () {
    expect(ProductionService::withinTolerance(0.025, 0.020))->toBeTrue()
        ->and(ProductionService::withinTolerance(0.015, 0.020))->toBeTrue()
        ->and(ProductionService::withinTolerance(0.026, 0.020))->toBeFalse()
        ->and(ProductionService::withinTolerance(0.014, 0.020))->toBeFalse()
        ->and(ProductionService::withinTolerance(0.131, 0.125))->toBeTrue()
        ->and(ProductionService::withinTolerance(0.132, 0.125))->toBeFalse();

    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    $product = qpProduct($ing, 0.020);
    $stock = qpStock($ing, $location, $supplier, $user, 10);

    Passport::actingAs($user);
    $this->actingAs($user, 'user');
    $payload = fn (string $qty) => [
        'save_mode' => 'complete',
        'product_id' => $product->id, 'location_id' => $location->id, 'produced_at' => '2026-09-10', 'quantity' => 1,
        'ingredient_lines' => [['ingredient_id' => $ing->id, 'batch_key' => $stock->batchGroupKey(), 'quantity_used' => $qty]],
        'outputs' => [['product_id' => $product->id, 'quantity' => 1, 'batch_number' => 'QP2']],
    ];

    $this->from(route('admin.inventory.productions.create'))->post(route('admin.inventory.productions.store'), $payload('0,026'))
        ->assertSessionHasErrors('ingredient_lines');
    $this->post(route('admin.inventory.productions.store'), $payload('0,025'))->assertRedirect()->assertSessionHasNoErrors();
    expect((float) Production::query()->sole()->productionIngredients()->sole()->quantity_used)->toBe(0.025);
});

test('AP53-03: die chargen-hauptzeile im rohstoff-detail zeigt 0,125 g statt 0 g', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    qpStock($ing, $location, $supplier, $user, 0.125);

    $this->actingAs($user, 'user');
    $html = $this->get(route('admin.inventory.raw-material-stock.show', $ing))->assertOk()->getContent();
    $table = substr($html, strpos($html, 'Verfügbare Chargen'));

    expect($table)->toContain('0,125 g')->not->toContain('>0 g<');
});

test('AP53-04: ausschuss-fehlermeldung nennt die tatsächlich geprüften mengen (0,005 g gegen 0,004 g)', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    qpStock($ing, $location, $supplier, $user, 0.004);

    $this->actingAs($user, 'user');
    $this->from(route('admin.inventory.stock-disposals.create'))->post(route('admin.inventory.stock-disposals.store'), [
        'disposal_type' => 'ingredient', 'ingredient_id' => $ing->id, 'location_id' => $location->id,
        'quantity' => '0,005', 'reason' => 'Bruch / Beschädigung', 'disposed_at' => '2026-09-10',
    ])->assertSessionHasErrors('quantity');

    $message = session('errors')->first('quantity');
    expect($message)->toContain('0,005 g')->toContain('0,004 g')->not->toContain('0,01 g');
});

test('AP53-4.2: mehr als drei stellen werden gerundet, unter 0,001 g abgelehnt, obergrenze validiert', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = qpIngredient();
    $product = qpProduct($ing, 0.123);
    $stock = qpStock($ing, $location, $supplier, $user, 10);

    Passport::actingAs($user);
    $this->actingAs($user, 'user');
    $payload = fn (string $qty, string $mode = 'complete') => [
        'save_mode' => $mode,
        'product_id' => $product->id, 'location_id' => $location->id, 'produced_at' => '2026-09-10', 'quantity' => 1,
        'ingredient_lines' => [['ingredient_id' => $ing->id, 'batch_key' => $stock->batchGroupKey(), 'quantity_used' => $qty]],
        'outputs' => [['product_id' => $product->id, 'quantity' => 1, 'batch_number' => 'QP3']],
    ];

    // 0,1234 → 0,123 (kanonisch), Toleranz und Speicherung sehen denselben Wert.
    $this->post(route('admin.inventory.productions.store'), $payload('0,1234'))->assertRedirect()->assertSessionHasNoErrors();
    expect((float) Production::query()->sole()->productionIngredients()->sole()->quantity_used)->toBe(0.123);

    // 0,0004 g rundet auf 0 → abgelehnt; Obergrenze → abgelehnt.
    $this->from(route('admin.inventory.productions.create'))->post(route('admin.inventory.productions.store'), $payload('0,0004'))
        ->assertSessionHasErrors('ingredient_lines.0.quantity_used');
    $this->from(route('admin.inventory.productions.create'))->post(route('admin.inventory.productions.store'), $payload('1.000.000.000'))
        ->assertSessionHasErrors('ingredient_lines.0.quantity_used');

    // Ausschuss: 0,0004 g → unter Auflösung.
    $this->from(route('admin.inventory.stock-disposals.create'))->post(route('admin.inventory.stock-disposals.store'), [
        'disposal_type' => 'ingredient', 'ingredient_id' => $ing->id, 'location_id' => $location->id,
        'quantity' => '0,0004', 'reason' => 'Bruch / Beschädigung', 'disposed_at' => '2026-09-10',
    ])->assertSessionHasErrors('quantity');
});

test('AP53-4.2: ml-bestellung, die umgerechnet unter 0,001 g fällt, wird abgelehnt; 0,0015 ml × 0,79 wird 0,001 g', function () {
    $user = qpUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $quality = MaterialQuality::factory()->create();
    $ing = Ingredient::query()->create(['name' => 'QP-Öl', 'trans_name' => '', 'inci' => 'QPO', 'trans_inci' => '', 'effect' => '', 'trans_effect' => '', 'active' => true, 'pos' => 0, 'density' => 0.4]);

    $this->actingAs($user, 'user');
    $base = [
        'entry_type' => 'ingredient', 'ingredient_id' => (string) $ing->id, 'supplier_id' => (string) $supplier->id,
        'location_id' => (string) $location->id, 'quality_id' => (string) $quality->id, 'ordered_at' => '2026-09-10',
        'ordered_unit' => 'ml', 'price_per_kg' => '10,00',
    ];

    // 0,001 ml × 0,4 = 0,0004 g → 0,000 g → abgelehnt.
    $this->from(route('admin.inventory.stock-entries.create'))->post(route('admin.inventory.stock-entries.store'), $base + ['ordered_quantity' => '0,001'])
        ->assertSessionHasErrors('ordered_quantity');

    // 0,002 ml × 0,4 = 0,0008 g → 0,001 g → angenommen.
    $this->post(route('admin.inventory.stock-entries.store'), $base + ['ordered_quantity' => '0,002'])->assertSessionHasNoErrors();
    expect((float) StockEntry::query()->latest('id')->firstOrFail()->ordered_quantity)->toBe(0.001);
});