gruene-seele/app/Http/Controllers/Admin/Inventory/ProductionController.php

<?php

namespace App\Http\Controllers\Admin\Inventory;

use App\Http\Controllers\Controller;
use App\Http\Requests\Inventory\StoreProductionRequest;
use App\Models\Location;
use App\Models\Product;
use App\Models\Production;
use App\Repositories\ProductionRepository;
use App\Services\ProductionService;
use App\Services\ProductStockService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Validation\ValidationException;
use Illuminate\View\View;

class ProductionController extends Controller
{
    public function __construct(
        protected ProductionRepository $productionRepository,
        protected ProductionService $productionService
    ) {}

    public function index(Request $request): View
    {
        $limit = $request->boolean('all') ? null : 500;

        return view('admin.inventory.productions.index', [
            'values' => $this->productionRepository->listForIndex($limit),
            'listLimit' => $limit,
        ]);
    }

    public function create(Request $request): View|RedirectResponse
    {
        // Audit M-2: Produktionen buchen Bestand — nur admin >= 7.
        if (! auth()->user()->isAdmin()) {
            return redirect()->route('home');
        }

        $defaultLocationId = Location::query()->where('name', 'like', '%öln%')->value('id')
            ?? Location::query()->where('active', true)->first()?->id;

        $defaultProductId = (int) $request->query('product_id') ?: null;

        return view('admin.inventory.productions.create', [
            'products' => Product::query()->where('active', 1)->where('is_set', false)->where('production_relevant', true)->orderBy('name')->get(['id', 'name', 'batch_prefix']),
            'locations' => Location::query()->where('active', true)->orderBy('name')->get(),
            'defaultLocationId' => $defaultLocationId,
            'defaultProductId' => $defaultProductId,
            'model' => null,
        ]);
    }

    public function store(StoreProductionRequest $request): RedirectResponse
    {
        $payload = $request->validatedPayload();
        $isDraft = (bool) $payload['is_draft'];

        try {
            // AP-27: Chargen-Zeilen (batch_key) FEFO auf die Einzel-Wareneingänge der Charge auflösen.
            $ingredientLines = $this->expandLines($payload['ingredient_lines'], $payload['location_id'], null, $isDraft);

            $production = $this->productionService->store(
                [
                    'product_id' => $payload['product_id'],
                    'location_id' => $payload['location_id'],
                    'produced_at' => $payload['produced_at'],
                    'quantity' => $payload['quantity'],
                    'notes' => $payload['notes'],
                ],
                $ingredientLines,
                (int) $request->user()->id,
                $payload['outputs'],
                $isDraft
            );
        } catch (ValidationException $e) {
            return redirect()->back()->withInput()->withErrors($e->errors());
        }

        return $this->afterSave($production, $isDraft);
    }

    /**
     * AP-27/AP-43: Chargen-Zeilen auf Einzel-Wareneingänge auflösen. Im Entwurf
     * darf das Auflösen scheitern (Charge nicht verfügbar) — dann bleiben nur die
     * bereits konkret gewählten Wareneingänge erhalten, der Entwurf ist immer speicherbar.
     *
     * @param  array<int, array<string, mixed>>  $lines
     * @return array<int, array<string, mixed>>
     */
    private function expandLines(array $lines, int $locationId, ?int $excludeProductionId, bool $isDraft): array
    {
        if (! $isDraft) {
            return $this->productionService->expandBatchLines($lines, $locationId, $excludeProductionId);
        }

        try {
            return $this->productionService->expandBatchLines($lines, $locationId, $excludeProductionId);
        } catch (ValidationException) {
            return array_values(array_filter($lines, fn ($l) => (int) ($l['stock_entry_id'] ?? 0) > 0));
        }
    }

    /**
     * AP-43: Entwurf zurück in die Bearbeitung (Weiterarbeiten), abgeschlossene
     * Produktion in die Detailansicht.
     */
    private function afterSave(Production $production, bool $isDraft): RedirectResponse
    {
        if ($isDraft) {
            \Session::flash('alert-save', '1');

            return redirect()->route('admin.inventory.productions.edit', $production)
                ->with('alert-info', __('Entwurf zwischengespeichert. Die Produktion ist noch nicht gebucht.'));
        }

        if ($production->mhd_warning) {
            \Session::flash('alert-warning', __('Hinweis: Mindestens eine Rohstoff-Charge hat ein kürzeres MHD als das geplante Produkt-MHD.'));
        }
        \Session::flash('alert-save', '1');

        return redirect()->route('admin.inventory.productions.show', $production);
    }

    public function show(Production $production): View
    {
        $production->load([
            'product',
            'location',
            'producedByUser.account',
            'productionIngredients.ingredient',
            'productionIngredients.stockEntry',
            'productionPackagings.packagingItem.packagingMaterial',
            'outputs.product',
        ]);

        return view('admin.inventory.productions.show', [
            'model' => $production,
        ]);
    }

    public function edit(Production $production): View|RedirectResponse
    {
        if (! auth()->user()->isAdmin()) {
            return redirect()->route('home');
        }
        $production->load([
            'product',
            'location',
            'productionIngredients.ingredient',
            'productionIngredients.stockEntry',
            'outputs',
        ]);

        $defaultLocationId = $production->location_id;

        return view('admin.inventory.productions.edit', [
            'model' => $production,
            'products' => Product::query()
                ->where(fn ($q) => $q->where('active', 1)->where('is_set', false)->where('production_relevant', true))
                ->orWhere('id', $production->product_id)
                ->orderBy('name')->get(['id', 'name', 'batch_prefix']),
            'locations' => Location::query()->where('active', true)->orderBy('name')->get(),
            'defaultLocationId' => $defaultLocationId,
        ]);
    }

    public function update(StoreProductionRequest $request, Production $production): RedirectResponse
    {
        $payload = $request->validatedPayload();
        $isDraft = (bool) $payload['is_draft'];

        try {
            // AP-27: Beim Bearbeiten die eigene Produktion aus der Rest-Berechnung ausnehmen.
            $ingredientLines = $this->expandLines($payload['ingredient_lines'], $payload['location_id'], $production->id, $isDraft);

            $production = $this->productionService->updateProduction(
                $production,
                [
                    'product_id' => $payload['product_id'],
                    'location_id' => $payload['location_id'],
                    'produced_at' => $payload['produced_at'],
                    'quantity' => $payload['quantity'],
                    'notes' => $payload['notes'],
                ],
                $ingredientLines,
                (int) $request->user()->id,
                $payload['outputs'],
                $isDraft
            );
        } catch (ValidationException $e) {
            return redirect()->back()->withInput()->withErrors($e->errors());
        }

        return $this->afterSave($production, $isDraft);
    }

    public function copy(Production $production): View|RedirectResponse
    {
        if (! auth()->user()->isAdmin()) {
            return redirect()->route('home');
        }
        $production->load([
            'product',
            'productionIngredients.ingredient',
            'productionIngredients.stockEntry',
            'outputs',
        ]);

        // Audit N-8: Chargen-Nummern nicht in die Kopie übernehmen — das neue
        // Produktionsdatum erzeugt sonst Duplikat-Chargen mit falschem Datum;
        // leer ⇒ JS-Vorschlag (Präfix + ttmmjj) greift.
        $production->outputs->each(fn ($output) => $output->setAttribute('batch_number', null));

        $defaultLocationId = $production->location_id;

        return view('admin.inventory.productions.create', [
            'model' => $production,
            'products' => Product::query()->where('active', 1)->where('is_set', false)->where('production_relevant', true)->orderBy('name')->get(['id', 'name', 'batch_prefix']),
            'locations' => Location::query()->where('active', true)->orderBy('name')->get(),
            'defaultLocationId' => $defaultLocationId,
        ]);
    }

    /**
     * Anforderung 15.07.2026: Produktionen löschbar (Soft-Delete).
     * Der gebuchte Produktbestand wird per Gegenbuchung zurückgeführt;
     * der Rohstoffverbrauch der Produktion zählt danach nicht mehr
     * (Bestandsqueries schließen gelöschte Produktionen aus).
     */
    public function destroy(Production $production, ProductStockService $productStockService): RedirectResponse
    {
        if (! auth()->user()->isAdmin()) {
            return redirect()->route('home');
        }

        \DB::transaction(function () use ($production, $productStockService) {
            // Audit M-9: Zeile sperren, damit Löschen nicht mit parallelem Update kollidiert.
            Production::query()->lockForUpdate()->findOrFail($production->id);
            $productStockService->reverseProductionStock($production, (int) auth()->id());
            $production->delete();
        });

        \Session::flash('alert-success', __('Produktion gelöscht — Produktbestand zurückgebucht, Rohstoffverbrauch freigegeben.'));

        return redirect()->route('admin.inventory.productions.index');
    }

    public function recipeJson(Request $request, Product $product): JsonResponse
    {
        $locationId = (int) $request->query('location_id', 0);
        $quantity = (int) $request->query('quantity', 1);
        $excludeProductionId = (int) $request->query('exclude_production', 0) ?: null;
        if ($locationId < 1) {
            return response()->json(['message' => __('location_id erforderlich')], 422);
        }

        return response()->json(
            $this->productionService->buildRecipePayload($product, $locationId, max(1, $quantity), $excludeProductionId)
        );
    }
}