<?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 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(): View
    {
        return view('admin.inventory.productions.index', [
            'values' => $this->productionRepository->listForIndex(),
        ]);
    }

    public function create(Request $request): View
    {
        $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)->orderBy('name')->get(['id', 'name']),
            'locations' => Location::query()->where('active', true)->orderBy('name')->get(),
            'defaultLocationId' => $defaultLocationId,
            'defaultProductId' => $defaultProductId,
            'model' => null,
        ]);
    }

    public function store(StoreProductionRequest $request): RedirectResponse
    {
        $payload = $request->validatedPayload();

        try {
            $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'],
                ],
                $payload['ingredient_lines'],
                (int) $request->user()->id
            );
        } catch (ValidationException $e) {
            return redirect()->back()->withInput()->withErrors($e->errors());
        }

        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',
        ]);

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

    public function edit(Production $production): View
    {
        $production->load([
            'product',
            'location',
            'productionIngredients.ingredient',
            'productionIngredients.stockEntry',
        ]);

        $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))
                ->orWhere('id', $production->product_id)
                ->orderBy('name')->get(['id', 'name']),
            'locations' => Location::query()->where('active', true)->orderBy('name')->get(),
            'defaultLocationId' => $defaultLocationId,
        ]);
    }

    public function update(StoreProductionRequest $request, Production $production): RedirectResponse
    {
        $payload = $request->validatedPayload();

        try {
            $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'],
                ],
                $payload['ingredient_lines'],
                (int) $request->user()->id
            );
        } catch (ValidationException $e) {
            return redirect()->back()->withInput()->withErrors($e->errors());
        }

        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 copy(Production $production): View
    {
        $production->load([
            'product',
            'productionIngredients.ingredient',
            'productionIngredients.stockEntry',
        ]);

        $defaultLocationId = $production->location_id;

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

    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)
        );
    }
}