<?php

namespace App\Http\Controllers\Admin;

use App\Category;
use App\CategoryManufacturer;
use App\Helpers\Helper;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Arr;
use App\Manufacturer;
use App\Http\Resources\Admin\ManufacturerResource;
use Validator;

/**
 * Class ManufacturerController
 *
 * @package App\Http\Controllers
 */
class ManufacturerController extends Controller
{
    const ITEM_PER_PAGE = 100;

    public function index(Request $request)
    {
        $searchParams = $request->all();
        $list = Manufacturer::notDeleted();
        $limit = Arr::get($searchParams, 'limit', static::ITEM_PER_PAGE);
        $keyword = Arr::get($searchParams, 'keyword', '');
        $status = Arr::get($searchParams, 'status', '');
        $categoryId = Arr::get($searchParams, 'categoryId', '');

        if (!empty($keyword)) {
            $list->where('name', 'LIKE', '%' . $keyword . '%');
        }

        if (!empty($categoryId)) {
            $category = Category::where('id', $categoryId)->first();
            if (isset($category)) {
                $categories = Category::select('id', 'parent_id')
                    ->where('id', '!=', $categoryId)
                    ->whereNotNull('parent_id')
                    ->get();

                $listIds = $this->detectParentCategoryId($categories, $category->parent_id);
                $listIds[] = $category->id;
                $categoryManufacturerIds = CategoryManufacturer::whereIn('category_id', $listIds)->pluck('manufacturer_id')->toArray();
                $list->whereIn('id', $categoryManufacturerIds);
            }
        }

        if ($status != '') {
            $list->where('is_activated', $status);
        }

        $list->orderBy('position')->orderBy('id');

        return ManufacturerResource::collection($list->paginate($limit));
    }

    public function all(Request $request)
    {
        $searchParams = $request->all();
        $limit = Arr::get($searchParams, 'limit', static::ITEM_PER_PAGE);
        $list = Manufacturer::select('id', 'name', 'slug')->notDeleted()->orderBy('position')->orderBy('id');

        return ManufacturerResource::collection($list->paginate($limit));
    }

    public function allNested()
    {
        $list = Manufacturer::select('*')->notDeleted()->orderBy('position')->get();
        $rs = $this->getChildItems($list, 0);

        return response()->json(['data' => $rs], 200);
    }

    public function getChildItems($list, $parent = 0)
    {
        $rs = [];
        foreach ($list as $item) {
            if ($item->parent_id == $parent) {
                $cate = ['value' => $item->id, 'label' => $item->name];
                $children = $this->getChildItems($list, $item->id);
                if ($children !== null && count($children) > 0) $cate['children'] = $children;
                $rs[] = $cate;
            }
        }

        return $rs;
    }

    public function available()
    {
        $list = Manufacturer::select('id', 'name')->notDeleted()->activated()->orderBy('position')->orderBy('id');

        return ManufacturerResource::collection($list->get());
    }

    public function show($id = 0)
    {
        $manufacturer = Manufacturer::notDeleted()->where('id', $id)->first();
        if (!isset($manufacturer)) return response()->json(['errors' => 'Category is not valid'], 403);

        return new ManufacturerResource($manufacturer);
    }

    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), ['name' => ['required'], 'is_activated' => ['required']]);
        if ($validator->fails()) return response()->json(['errors' => $validator->errors()], 403);
        $params = $request->all();

        $slug = $params['slug'];
        if ($slug == null || $slug == "") $slug = Helper::slug($params['name']);
        $maxItem = Manufacturer::where('is_deleted', false)->orderBy('position', 'desc')->first();
        $countAll = isset($maxItem) ? $maxItem->position : 0;
        if ($countAll > 0) $countAll++;

        $manufacturer = Manufacturer::create([
            'name'           => $params['name'],
            'slug'           => Helper::slug($slug),
            'parent_id'      => $params['parent_id'],
            'image'          => $params['image'],
            'description'    => $params['description'],
            'rank'           => ($params['rank'] != null && $params['rank'] != "") ? $params['rank'] : null,
            'position'       => $countAll,
            'is_activated'   => ($params['is_activated'] === true) ? 1 : 0,
            'created_at'     => date('Y-m-d H:i:s'),
            'updated_at'     => date('Y-m-d H:i:s')
        ]);

        return new ManufacturerResource($manufacturer);
    }

    public function update($id = 0, Request $request)
    {
        $validator = Validator::make($request->all(), ['name' => ['required'], 'is_activated' => ['required']]);
        if ($validator->fails()) return response()->json(['errors' => $validator->errors()], 403);
        $manufacturer = Manufacturer::notDeleted()->where('id', $id)->first();
        if (!isset($manufacturer)) return response()->json(['errors' => 'Manufacturer is not valid'], 403);
        $params = $request->all();
        $slug = $params['slug'];
        if ($slug == null || $slug == "") $slug = Helper::slug($params['name']);

        $manufacturer->update([
            'name'           => $params['name'],
            'slug'           => Helper::slug($slug),
            'parent_id'      => $params['parent_id'],
            'description'    => $params['description'],
            'rank'           => ($params['rank'] != null && $params['rank'] != "") ? $params['rank'] : null,
            'is_activated'   => ($params['is_activated'] === true) ? 1 : 0,
            'updated_at'     => date('Y-m-d H:i:s')
        ]);

        return response()->json(null, 204);
    }

    public function destroy($id = 0)
    {
        $manufacturer = Manufacturer::notDeleted()->where('id', $id)->first();
        if (!isset($manufacturer)) response()->json(['error' => 'Ehhh! Can not delete this manufacturer'], 403);

        try {
            $manufacturer->update(['is_deleted' => true]);
        } catch (\Exception $ex) {
            response()->json(['error' => $ex->getMessage()], 403);
        }

        return response()->json(null, 204);
    }

    public function destroyMultiple(Request $request)
    {
        $validator = Validator::make($request->all(), ['ids' => 'required']);
        if ($validator->fails()) return response()->json(['errors' => $validator->errors()], 403);
        $listIds = $request->get('ids', []);
        $categories = Manufacturer::notDeleted()->whereIn('id', $listIds)->get();
        if ($categories->count() <= 0) response()->json(['error' => 'Manufacturer is not valid.'], 403);
        try {
            Manufacturer::notDeleted()->whereIn('id', $listIds)->update(['is_deleted' => true]);
        } catch (\Exception $ex) {
            response()->json(['error' => $ex->getMessage()], 403);
        }

        return response()->json(null, 204);
    }

    public function activateMultiple(Request $request)
    {
        $validator = Validator::make($request->all(), ['ids' => 'required']);
        if ($validator->fails()) return response()->json(['errors' => $validator->errors()], 403);
        $listIds = $request->get('ids', []);
        $categories = Manufacturer::notDeleted()->whereIn('id', $listIds)->get();
        if ($categories->count() <= 0) response()->json(['error' => 'Manufacturer is not valid.'], 403);
        try {
            Manufacturer::notDeleted()->whereIn('id', $listIds)->update(['is_activated' => true]);
        } catch (\Exception $ex) {
            response()->json(['error' => $ex->getMessage()], 403);
        }

        return response()->json(null, 204);
    }

    public function deactivateMultiple(Request $request)
    {
        $validator = Validator::make($request->all(), ['ids' => 'required']);
        if ($validator->fails()) return response()->json(['errors' => $validator->errors()], 403);
        $listIds = $request->get('ids', []);
        $categories = Manufacturer::notDeleted()->whereIn('id', $listIds)->get();
        if ($categories->count() <= 0) response()->json(['error' => 'Manufacturer is not valid.'], 403);
        try {
            Manufacturer::notDeleted()->whereIn('id', $listIds)->update(['is_activated' => false]);
        } catch (\Exception $ex) {
            response()->json(['error' => $ex->getMessage()], 403);
        }

        return response()->json(null, 204);
    }

    public function position(Request $request)
    {
        if (!$request->has('position')) return response()->json(['errors' => 'Data is invalid'], 403);
        $newIndexes = $request->position;
        if (is_array($newIndexes)) {
            foreach ($newIndexes as $item) {
                Manufacturer::where('id', $item['id'])->update(['position' => $item['order']]);
            }
        }

        return response()->json(null, 204);
    }

    private function detectParentCategoryId($list = [], $parent_id = '') {
        $listIds = [];
        foreach ($list as $item) {
            if ($item->id == $parent_id) {
                $listIds[] = $item->id;
                $subIds = $this->detectParentCategoryId($list, $item->parent_id);
                $listIds = array_merge($listIds, $subIds);
            }
        }

        return $listIds;
    }
}