<?php

namespace App\Http\Controllers\Admin\Inventory;

use App\Http\Controllers\Controller;
use App\Http\Requests\Inventory\StoreSupplierRequest;
use App\Http\Requests\Inventory\UpdateSupplierRequest;
use App\Models\Country;
use App\Models\DeliveryTime;
use App\Models\Ingredient;
use App\Models\PackagingItem;
use App\Models\Supplier;
use App\Models\SupplierCategory;
use App\Repositories\SupplierRepository;
use Illuminate\Contracts\View\View;
use Illuminate\Http\Request;

class SupplierController extends Controller
{
    public function __construct(
        protected SupplierRepository $supplierRepository
    ) {}

    public function index()
    {
        return view('admin.inventory.suppliers.index', [
            'values' => Supplier::query()->with(['country', 'supplierCategories'])->orderBy('name')->get(),
        ]);
    }

    public function create()
    {
        $defaultCountryId = Country::where('code', 'DE')->value('id');

        return view('admin.inventory.suppliers.form', [
            'model' => new Supplier(['active' => true, 'country_id' => $defaultCountryId]),
            'countries' => Country::query()->orderBy('de')->get(),
            'supplierCategories' => SupplierCategory::query()->orderBy('pos')->orderBy('name')->get(),
            'deliveryTimes' => DeliveryTime::query()->active()->orderBy('pos')->orderBy('label')->get(),
        ]);
    }

    public function store(StoreSupplierRequest $request)
    {
        $this->supplierRepository->create($request->validated());

        \Session::flash('alert-save', '1');

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

    public function show(Supplier $supplier): View
    {
        return $this->renderDetails($supplier);
    }

    public function attachIngredient(Request $request, Supplier $supplier): View
    {
        $validated = $request->validate([
            'ingredient_id' => ['required', 'integer', 'exists:ingredients,id'],
        ]);

        $supplier->ingredients()->syncWithoutDetaching([$validated['ingredient_id']]);

        return $this->renderDetails($supplier);
    }

    public function detachIngredient(Supplier $supplier, Ingredient $ingredient): View
    {
        $supplier->ingredients()->detach($ingredient->id);

        return $this->renderDetails($supplier);
    }

    public function attachPackagingItem(Request $request, Supplier $supplier): View
    {
        $validated = $request->validate([
            'packaging_item_id' => ['required', 'integer', 'exists:packaging_items,id'],
        ]);

        PackagingItem::query()
            ->whereKey($validated['packaging_item_id'])
            ->update(['supplier_id' => $supplier->id]);

        return $this->renderDetails($supplier);
    }

    public function detachPackagingItem(Supplier $supplier, PackagingItem $packagingItem): View
    {
        if ((int) $packagingItem->supplier_id === (int) $supplier->id) {
            $packagingItem->update(['supplier_id' => null]);
        }

        return $this->renderDetails($supplier);
    }

    protected function renderDetails(Supplier $supplier): View
    {
        $supplier->load(['country', 'supplierCategories', 'ingredients', 'packagingItems']);

        $assignedIngredientIds = $supplier->ingredients->pluck('id')->all();
        $assignedPackagingItemIds = $supplier->packagingItems->pluck('id')->all();

        return view('admin.inventory.suppliers._details', [
            'supplier' => $supplier,
            'availableIngredients' => Ingredient::query()
                ->whereNotIn('id', $assignedIngredientIds)
                ->orderBy('name')
                ->get(),
            'availablePackagingItems' => PackagingItem::query()
                ->whereNotIn('id', $assignedPackagingItemIds)
                ->orderBy('name')
                ->get(),
        ]);
    }

    public function edit(Supplier $supplier)
    {
        $supplier->load('supplierCategories');

        return view('admin.inventory.suppliers.form', [
            'model' => $supplier,
            'countries' => Country::query()->orderBy('de')->get(),
            'supplierCategories' => SupplierCategory::query()->orderBy('pos')->orderBy('name')->get(),
            'deliveryTimes' => DeliveryTime::query()->active()->orderBy('pos')->orderBy('label')->get(),
        ]);
    }

    public function update(UpdateSupplierRequest $request, Supplier $supplier)
    {
        $this->supplierRepository->update($supplier, $request->validated());

        \Session::flash('alert-save', '1');

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

    public function destroy(Supplier $supplier)
    {
        $supplier->delete();

        \Session::flash('alert-success', __('Eintrag gelöscht'));

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