<?php

use App\Models\Ingredient;
use App\Models\Location;
use App\Models\Product;
use App\Models\ProductIngredient;
use App\Models\Production;
use App\Models\StockEntry;
use App\Models\StorageRoom;
use App\Models\StorageShelf;
use App\Models\StorageSlot;
use App\Models\Supplier;
use App\Repositories\StockEntryRepository;
use App\Services\InventoryService;
use App\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

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

function ap10MakeUser(int $adminLevel = 7): User
{
    $user = User::query()->create([
        'email' => uniqid('ap10_', true).'@test.example',
        'password' => bcrypt('password'),
    ]);
    $user->forceFill([
        'admin' => $adminLevel,
        'confirmed' => true,
        'active' => true,
        'wizard' => 100,
        'blocked' => false,
    ])->save();

    return $user->fresh();
}

function ap10MakeIngredient(string $name, ?float $minStockAlert = null): Ingredient
{
    return Ingredient::query()->create([
        'name' => $name,
        'trans_name' => '',
        'inci' => $name,
        'trans_inci' => '',
        'effect' => '',
        'trans_effect' => '',
        'active' => true,
        'pos' => 0,
        'min_stock_alert' => $minStockAlert,
    ]);
}

/**
 * @param  array<string, mixed>  $overrides
 */
function ap10MakeStock(Ingredient $ing, Location $location, Supplier $supplier, User $user, array $overrides = []): StockEntry
{
    return StockEntry::query()->create(array_merge([
        'entry_type' => 'ingredient',
        'ingredient_id' => $ing->id,
        'supplier_id' => $supplier->id,
        'location_id' => $location->id,
        'unit' => 'gram',
        'ordered_by' => $user->id,
        'ordered_at' => '2026-01-01',
        'ordered_quantity' => 10000,
        'price_per_kg' => 15,
        'status' => 'received',
        'received_by' => $user->id,
        'received_at' => '2026-01-15',
        'received_quantity' => 10000,
        'batch_number' => 'AP10-B',
        'best_before' => '2030-12-31',
    ], $overrides));
}

function ap10ConsumeViaProduction(Ingredient $ing, StockEntry $stock, Location $location, User $user, float $grams, string $producedAt): void
{
    $product = Product::query()->create([
        'name' => 'AP10-Produkt-'.uniqid(),
        'title' => 'AP10-Produkt',
        'active' => true,
    ]);

    $production = Production::query()->create([
        'product_id' => $product->id,
        'location_id' => $location->id,
        'produced_by' => $user->id,
        'produced_at' => $producedAt,
        'quantity' => 1,
        'mhd_warning' => false,
    ]);

    $production->productionIngredients()->create([
        'ingredient_id' => $ing->id,
        'stock_entry_id' => $stock->id,
        'quantity_used' => $grams,
    ]);
}

test('restbestand ist wareneingang abzueglich produktionsverbrauch', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = ap10MakeIngredient('AP10-Rest');

    $stock = ap10MakeStock($ing, $location, $supplier, $user, ['received_quantity' => 10000]);
    ap10ConsumeViaProduction($ing, $stock, $location, $user, 2500, now()->subDays(10)->toDateString());

    $remaining = app(InventoryService::class)->remainingByIngredient([$ing->id]);

    expect($remaining[$ing->id])->toBe(7500.0);
});

test('verbrauch pro tag wird aus produktionshistorie gemittelt', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = ap10MakeIngredient('AP10-Verbrauch');

    $stock = ap10MakeStock($ing, $location, $supplier, $user);
    // 9000 g innerhalb des 90-Tage-Fensters => 100 g/Tag
    ap10ConsumeViaProduction($ing, $stock, $location, $user, 9000, now()->subDays(5)->toDateString());

    $daily = app(InventoryService::class)->dailyConsumptionByIngredient([$ing->id], 90);

    expect($daily[$ing->id])->toBe(100.0);
});

test('verbrauch ausserhalb des fensters zaehlt nicht', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = ap10MakeIngredient('AP10-Alt');

    $stock = ap10MakeStock($ing, $location, $supplier, $user);
    ap10ConsumeViaProduction($ing, $stock, $location, $user, 9000, now()->subDays(200)->toDateString());

    $daily = app(InventoryService::class)->dailyConsumptionByIngredient([$ing->id], 90);

    expect($daily[$ing->id] ?? 0.0)->toBe(0.0);
});

test('status meldet kritisch bei unterschrittenem meldebestand', function () {
    $service = app(InventoryService::class);

    expect($service->stockStatus(1000.0, 500.0, null, null))->toBe('critical')
        ->and($service->stockStatus(1000.0, 1500.0, 5.0, 30))->toBe('ok');
});

test('status meldet warnung wenn bestand vor lieferung leer ist', function () {
    $service = app(InventoryService::class);

    // 200 g Rest, 20 g/Tag => 10 Tage Reichweite, Lieferzeit 14 Tage => Warnung
    expect($service->stockStatus(null, 200.0, 20.0, 14))->toBe('warning');
});

test('kritisch-zaehler zaehlt nur unterschrittene meldebestaende', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();

    $critical = ap10MakeIngredient('AP10-Kritisch', 5000);
    ap10MakeStock($critical, $location, $supplier, $user, ['received_quantity' => 1000]);

    $ok = ap10MakeIngredient('AP10-OK', 500);
    ap10MakeStock($ok, $location, $supplier, $user, ['received_quantity' => 9000]);

    // ohne Meldebestand => nie kritisch
    $noAlert = ap10MakeIngredient('AP10-OhneMelde');
    ap10MakeStock($noAlert, $location, $supplier, $user, ['received_quantity' => 0]);

    expect(app(InventoryService::class)->criticalIngredientCount())->toBe(1);
});

test('offene bestellungen werden je rohstoff summiert', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = ap10MakeIngredient('AP10-Offen');

    ap10MakeStock($ing, $location, $supplier, $user, ['status' => 'pending', 'ordered_quantity' => 200, 'received_quantity' => null]);
    ap10MakeStock($ing, $location, $supplier, $user, ['status' => 'pending', 'ordered_quantity' => 300, 'received_quantity' => null]);

    $open = app(InventoryService::class)->openOrderQuantityByIngredient([$ing->id]);

    expect($open[$ing->id])->toBe(500.0);
});

test('kritischer rohstoff mit offener bestellung wird entschaerft', function () {
    $service = app(InventoryService::class);

    expect($service->stockStatus(1000.0, 500.0, null, null, true))->toBe('critical_ordered')
        ->and($service->stockStatus(1000.0, 500.0, null, null, false))->toBe('critical');
});

test('kritisch-zaehler ignoriert rohstoffe mit offener bestellung', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();

    $critical = ap10MakeIngredient('AP10-KritischOffen', 5000);
    ap10MakeStock($critical, $location, $supplier, $user, ['received_quantity' => 1000]);
    // offene Nachbestellung => entschärft
    ap10MakeStock($critical, $location, $supplier, $user, ['status' => 'pending', 'ordered_quantity' => 8000, 'received_quantity' => null]);

    expect(app(InventoryService::class)->criticalIngredientCount())->toBe(0);
});

test('detailansicht zeigt offene bestellung', function () {
    $user = ap10MakeUser(1);
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create(['name' => 'AP10-OffenLieferant']);
    $ing = ap10MakeIngredient('AP10-OffenDetail');

    ap10MakeStock($ing, $location, $supplier, $user, ['status' => 'pending', 'ordered_quantity' => 750, 'received_quantity' => null]);

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.raw-material-stock.show', $ing));

    $response->assertSuccessful();
    $response->assertSee('Offene Bestellungen');
    $response->assertSee('AP10-OffenLieferant');
});

test('uebersicht rendert rohstoff mit bestand', function () {
    $user = ap10MakeUser(1);
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = ap10MakeIngredient('AP10-Sheabutter', 5000);
    ap10MakeStock($ing, $location, $supplier, $user, ['received_quantity' => 2578]);

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.raw-material-stock.index', ['scope' => 'all']));

    $response->assertSuccessful();
    $response->assertSee('Rohstoffbestand');
    $response->assertSee('AP10-Sheabutter');
    $response->assertSee('nur kritische anzeigen');
});

test('einkauf-formular ist mit rohstoff und inhaltsstoff vorbelegt', function () {
    $user = ap10MakeUser(7);
    $ing = ap10MakeIngredient('AP10-Vorbelegt');

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.stock-entries.create', ['ingredient_id' => $ing->id]));

    $response->assertSuccessful();
    $response->assertSee('AP10-Vorbelegt');
    // Art "Rohstoff" ist als Standard ausgewählt
    $response->assertSee('value="ingredient" selected', false);
});

test('detailansicht zeigt charge und lieferant', function () {
    $user = ap10MakeUser(1);
    $location = Location::factory()->create(['name' => 'AP10-Lager']);
    $supplier = Supplier::factory()->create(['name' => 'AP10-Lieferant']);
    $ing = ap10MakeIngredient('AP10-Detail');
    $ing->suppliers()->attach($supplier->id, ['preferred' => true]);

    ap10MakeStock($ing, $location, $supplier, $user, [
        'batch_number' => 'AP10-CHARGE-7',
        'received_quantity' => 4000,
    ]);

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.raw-material-stock.show', $ing));

    $response->assertSuccessful();
    $response->assertSee('AP10-Detail');
    $response->assertSee('AP10-CHARGE-7');
    $response->assertSee('AP10-Lieferant');
});

test('kein-rohstoffbestand-flag blendet inci aus uebersicht und kritisch-zaehler aus', function () {
    $user = ap10MakeUser(1);
    $normal = ap10MakeIngredient('AP20-Sichtbar', 500);
    $excluded = ap10MakeIngredient('AP20-Allergen', 500);
    $excluded->update(['exclude_from_stock' => true]);

    // Beide ohne Bestand => beide unter Meldebestand, aber nur der sichtbare zählt.
    expect(app(InventoryService::class)->criticalIngredientCount())->toBe(1);

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.raw-material-stock.index', ['scope' => 'all']));

    $response->assertSuccessful();
    $response->assertSee('AP20-Sichtbar');
    $response->assertDontSee('AP20-Allergen');
});

test('modus recipe zeigt nur rohstoffe aus herstellerrezepturen aktiver produkte', function () {
    $user = ap10MakeUser(1);
    $inRecipe = ap10MakeIngredient('AP20-InRezeptur');
    $notInRecipe = ap10MakeIngredient('AP20-Neuentwicklung');

    $product = Product::query()->create(['name' => 'AP20-Produkt', 'title' => 'AP20-Produkt', 'active' => true]);
    ProductIngredient::query()->create([
        'product_id' => $product->id,
        'ingredient_id' => $inRecipe->id,
        'pos' => 0,
        'gram' => 10,
        'factor' => 1.0,
        'recipe_type' => 'manufacturer',
    ]);

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

    // Default (Kundenentscheid 17.07.2026): nur Rohstoffe aus Herstellerrezepturen
    $this->get(route('admin.inventory.raw-material-stock.index'))
        ->assertSuccessful()
        ->assertSee('AP20-InRezeptur')
        ->assertDontSee('AP20-Neuentwicklung')
        ->assertSee('Nur aus Herstellerrezepturen');

    // Modus „alle": beide sichtbar
    $this->get(route('admin.inventory.raw-material-stock.index', ['scope' => 'all']))
        ->assertSuccessful()
        ->assertSee('AP20-InRezeptur')
        ->assertSee('AP20-Neuentwicklung');
});

test('recipe-scope weist auf kritische rohstoffe ausserhalb der rezepturen hin', function () {
    // Review 20.07.2026: Badge zählt alle aktiven kritischen Rohstoffe, die
    // Standardansicht blendet rezepturlose aus — der Hinweis schließt die Lücke.
    $user = ap10MakeUser(1);
    $inRecipe = ap10MakeIngredient('AP20-InRezeptur', 500);
    // rezepturloser Rohstoff mit Meldebestand, aber ohne Bestand => kritisch
    ap10MakeIngredient('AP20-Neuentwicklung', 500);

    $product = Product::query()->create(['name' => 'AP20-Produkt', 'title' => 'AP20-Produkt', 'active' => true]);
    ProductIngredient::query()->create([
        'product_id' => $product->id,
        'ingredient_id' => $inRecipe->id,
        'pos' => 0,
        'gram' => 10,
        'factor' => 1.0,
        'recipe_type' => 'manufacturer',
    ]);

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

    // Badge zählt beide, die recipe-Ansicht nur einen => Hinweis auf den versteckten
    expect(app(InventoryService::class)->criticalIngredientCount())->toBe(2);
    $this->get(route('admin.inventory.raw-material-stock.index'))
        ->assertSuccessful()
        ->assertSee('außerhalb der Herstellerrezepturen');

    // Im „alle"-Modus kein Hinweis (alles sichtbar)
    $this->get(route('admin.inventory.raw-material-stock.index', ['scope' => 'all']))
        ->assertSuccessful()
        ->assertDontSee('außerhalb der Herstellerrezepturen');
});

test('letzter netto-preis je lieferant kommt aus dem neuesten einkauf', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplierA = Supplier::factory()->create();
    $supplierB = Supplier::factory()->create();
    $ing = ap10MakeIngredient('OPT4-Preis');

    ap10MakeStock($ing, $location, $supplierA, $user, ['ordered_at' => '2026-01-01', 'price_per_kg' => 10]);
    ap10MakeStock($ing, $location, $supplierA, $user, ['ordered_at' => '2026-03-01', 'price_per_kg' => 12.5]);
    ap10MakeStock($ing, $location, $supplierB, $user, ['ordered_at' => '2026-02-01', 'price_per_kg' => 9]);

    $prices = app(StockEntryRepository::class)->lastNetPricePerSupplier($ing->id);

    expect($prices[$supplierA->id])->toBe(12.5)
        ->and($prices[$supplierB->id])->toBe(9.0);
});

test('wareneingang-liste deckelt eingegangene eintraege, offene bleiben vollstaendig', function () {
    $user = ap10MakeUser();
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create();
    $ing = ap10MakeIngredient('OPT3-Limit');

    foreach (range(1, 3) as $i) {
        ap10MakeStock($ing, $location, $supplier, $user, ['received_at' => '2026-01-0'.$i]);
    }
    foreach (range(1, 2) as $i) {
        ap10MakeStock($ing, $location, $supplier, $user, [
            'status' => 'pending', 'ordered_at' => '2026-02-0'.$i, 'received_quantity' => null, 'received_at' => null, 'received_by' => null,
        ]);
    }

    $values = app(StockEntryRepository::class)->listForIndex(2);

    expect($values)->toHaveCount(4) // 2 pending + 2 (gedeckelt) received
        ->and($values->take(2)->pluck('status')->unique()->all())->toBe(['pending'])
        ->and($values->skip(2)->pluck('received_at')->map(fn ($d) => $d->format('Y-m-d'))->values()->all())
        ->toBe(['2026-01-03', '2026-01-02']); // neueste zuerst

    expect(app(StockEntryRepository::class)->listForIndex(null))->toHaveCount(5);
});

test('bestellweg folgt der inci-lieferanten-url', function () {
    $user = ap10MakeUser(1);
    $shopSupplier = Supplier::factory()->create(['name' => 'AP21-Shop', 'email' => 'shop@example.test']);
    $mailSupplier = Supplier::factory()->create(['name' => 'AP21-Mail', 'email' => 'mail@example.test']);
    $ing = ap10MakeIngredient('AP21-Bestellweg');

    // URL gesetzt ⇒ Shop-Link (INCI-spezifisch), URL leer ⇒ Mailbestellung
    $ing->suppliers()->attach($shopSupplier->id, ['url' => 'https://shop.example/zinclear?menge=25kg']);
    $ing->suppliers()->attach($mailSupplier->id, ['url' => null]);

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.raw-material-stock.show', $ing));

    $response->assertSuccessful();
    $response->assertSee('https://shop.example/zinclear?menge=25kg', false);
    $response->assertSee(__('Zum Shop'));
    $response->assertSee(__('Per Mail'));
    $response->assertSee('mailto:mail@example.test', false);
});

test('detailansicht zeigt alternativnamen und lagerort', function () {
    $user = ap10MakeUser(1);
    $room = StorageRoom::factory()->create(['label' => 'Raum 1']);
    $shelf = StorageShelf::factory()->create(['label' => 'Regal 3']);
    $slot = StorageSlot::factory()->create(['label' => 'O']);
    $ing = ap10MakeIngredient('AP21-Lagerort');
    $ing->update([
        'alt_name' => 'Phospholipon 80 H',
        'storage_room_id' => $room->id,
        'storage_shelf_id' => $shelf->id,
        'storage_slot_id' => $slot->id,
    ]);

    $this->actingAs($user, 'user');
    $response = $this->get(route('admin.inventory.raw-material-stock.show', $ing));

    $response->assertSuccessful();
    $response->assertSee('Phospholipon 80 H');
    $response->assertSee('Raum 1 | Regal 3 | O');
});

test('AP-37: enthalten-in listet ein produkt trotz doppelter rezeptzeilen nur einmal', function () {
    $user = ap10MakeUser(1);
    $ing = ap10MakeIngredient('AP37-Rohstoff');
    $product = Product::query()->create(['name' => 'AP37-Zaubercreme-Unikat', 'title' => 'AP37-Zaubercreme-Unikat', 'active' => true]);

    // Realfall: jedes Produkt trägt den Rohstoff in ZWEI product_ingredients-Zeilen
    // (Hersteller- und Produktrezeptur). Die „Enthalten in"-Liste darf ihn dennoch
    // nur einmal zeigen.
    foreach (['manufacturer', 'product'] as $type) {
        ProductIngredient::query()->create([
            'product_id' => $product->id,
            'ingredient_id' => $ing->id,
            'pos' => 0,
            'gram' => 10,
            'factor' => 1.0,
            'recipe_type' => $type,
        ]);
    }

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

    $html = $this->get(route('admin.inventory.raw-material-stock.show', $ing))
        ->assertSuccessful()
        ->getContent();

    expect(substr_count($html, 'AP37-Zaubercreme-Unikat'))->toBe(1);
});

function f11Setup(): array
{
    $admin = ap10MakeUser(7);
    $location = Location::factory()->create();
    $supplier = Supplier::factory()->create(['name' => 'F11-Lieferant']);
    $ing = ap10MakeIngredient('F11-Preis');
    $ing->suppliers()->attach($supplier->id, ['preferred' => true]);
    ap10MakeStock($ing, $location, $supplier, $admin, ['price_per_kg' => 123.45]);

    return [$admin, $ing];
}

test('F-11: copyreader sehen auf der rohstoff-detailseite keine einkaufspreise', function () {
    [, $ing] = f11Setup();

    $this->actingAs(ap10MakeUser(1), 'user')
        ->get(route('admin.inventory.raw-material-stock.show', $ing))
        ->assertSuccessful()
        ->assertSee('F11-Lieferant')
        ->assertDontSee('123,45')
        ->assertDontSee('Letzter Einkauf');
});

test('F-11: admins sehen den letzten einkaufspreis weiterhin', function () {
    [$admin, $ing] = f11Setup();

    $this->actingAs($admin, 'user')
        ->get(route('admin.inventory.raw-material-stock.show', $ing))
        ->assertSuccessful()
        ->assertSee('123,45');
});

test('F-14: enthalten-in zeigt anteil in prozent und verbrauch je stück inkl. faktor, phasen summiert', function () {
    $user = ap10MakeUser(1);
    $ing = ap10MakeIngredient('F14-Anteil');

    // 50-g-Produkt, 20 % mit Faktor 1,1 → netto 10 g, Verbrauch 11 g je Stück.
    $single = Product::query()->create(['name' => 'F14-Einfach', 'title' => 'x', 'active' => true, 'production_relevant' => true, 'fill_weight' => 50]);
    ProductIngredient::query()->create(['product_id' => $single->id, 'ingredient_id' => $ing->id, 'pos' => 0, 'gram' => 20, 'factor' => 1.1, 'recipe_type' => 'manufacturer']);
    // INCI-Zeile desselben Produkts darf nicht mitzählen.
    ProductIngredient::query()->create(['product_id' => $single->id, 'ingredient_id' => $ing->id, 'pos' => 0, 'gram' => 99, 'factor' => 1.0, 'recipe_type' => 'product']);

    // Zwei Phasen 6 % + 4 % bei 100 g → 10 %, Verbrauch 10 g (Faktor 1,0).
    $phased = Product::query()->create(['name' => 'F14-Phasen', 'title' => 'x', 'active' => true, 'production_relevant' => true, 'fill_weight' => 100]);
    ProductIngredient::query()->create(['product_id' => $phased->id, 'ingredient_id' => $ing->id, 'pos' => 0, 'gram' => 6, 'factor' => 1.0, 'recipe_type' => 'manufacturer']);
    ProductIngredient::query()->create(['product_id' => $phased->id, 'ingredient_id' => $ing->id, 'pos' => 1, 'gram' => 4, 'factor' => 1.0, 'recipe_type' => 'manufacturer']);

    $this->actingAs($user, 'user');
    $html = $this->get(route('admin.inventory.raw-material-stock.show', $ing))->assertSuccessful()->getContent();

    expect($html)->toContain('20,00 %')->toContain('11,00 g')->toContain('netto 10,00 g')
        ->toContain('10,00 %')->toContain('10,00 g')
        ->not->toContain('99,00');
    expect(substr_count($html, 'F14-Einfach'))->toBe(1);
});