<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;
use Illuminate\Support\Arr;
use App\Material;
use App\MaterialCategory;
use App\Http\Resources\Admin\MaterialResource;
use Validator;

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

	public function index(Request $request)
	{
		$searchParams = $request->all();
		$list = Material::notDeleted();
		$limit = Arr::get($searchParams, 'limit', static::ITEM_PER_PAGE);
		$keyword = Arr::get($searchParams, 'keyword', '');
		$status = Arr::get($searchParams, 'status', '');
		$materialCategoryId = Arr::get($searchParams, 'material_category_id', '');
		
		if (!empty($materialCategoryId)) {
			$categoryIds = $this->getAllChildCategoryIds($materialCategoryId);
			$list->whereIn('material_category_id', $categoryIds);
		}
		if (!empty($keyword)) {
			$list->where('price', 'LIKE', '%' . $keyword . '%');
		}
		if ($status != '') {
			$list->where('is_activated', $status);
		}
		$list->orderBy('id');

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

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

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

	public function available(Request $request)
	{
		$ignoreId = Arr::get($request->all(), 'ignoreId', '');
		$list = Material::select('id', 'name')->isPublished();

		if ($ignoreId != null && $ignoreId != "") {
			$list->where('id', '!=', $ignoreId);
		}

		$list->orderBy('id');

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

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

		return new MaterialResource($material);
	}

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

		$parentId = 0;
		if (is_array($params['material_category_id']) && isset($params['material_category_id'][array_key_last($params['material_category_id'])])) {
			$parentId = $params['material_category_id'][array_key_last($params['material_category_id'])];
		}

		$material = Material::create([
			'material_category_id' => $parentId,
			'price'                => $params['price'],
			'is_activated'         => ($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 MaterialResource($material);
	}

	public function update(Request $request, $id = 0)
	{
		$validator = Validator::make($request->all(), ['material_category_id' => ['required'], 'price' => ['required'], 'is_activated' => ['required']]);
		if ($validator->fails()) return response()->json(['errors' => $validator->errors()], 403);
		$material = Material::notDeleted()->where('id', $id)->first();
		if (!isset($material)) return response()->json(['errors' => 'Material is not valid'], 403);
		$params = $request->all();

		$parentId = 0;
		if (is_array($params['material_category_id']) && isset($params['material_category_id'][array_key_last($params['material_category_id'])])) {
			$parentId = $params['material_category_id'][array_key_last($params['material_category_id'])];
		}

		$material->update([
			'material_category_id' => $parentId,
			'price'                => $params['price'],
			'is_activated'         => ($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)
	{
		$material = Material::notDeleted()->where('id', $id)->first();
		if (!isset($material)) response()->json(['error' => 'Ehhh! Can not delete this material'], 403);

		try {
			$material->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', []);
		$materials = Material::notDeleted()->whereIn('id', $listIds)->get();
		if ($materials->count() <= 0) response()->json(['error' => 'Material is not valid.'], 403);
		try {
			Material::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', []);
		$materials = Material::notDeleted()->whereIn('id', $listIds)->get();
		if ($materials->count() <= 0) response()->json(['error' => 'Material is not valid.'], 403);
		try {
			Material::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', []);
		$materials = Material::notDeleted()->whereIn('id', $listIds)->get();
		if ($materials->count() <= 0) response()->json(['error' => 'Material is not valid.'], 403);
		try {
			Material::notDeleted()->whereIn('id', $listIds)->update(['is_activated' => false]);
		} catch (\Exception $ex) {
			response()->json(['error' => $ex->getMessage()], 403);
		}

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

	private function getAllChildCategoryIds($categoryId)
	{
		$allCategoryIds = [$categoryId];
		$childCategories = MaterialCategory::select('id')
			->where('is_deleted', false)
			->where('is_activated', true)
			->where('parent_id', $categoryId)
			->get();

		foreach ($childCategories as $childCategory) {
			$allCategoryIds = array_merge($allCategoryIds, $this->getAllChildCategoryIds($childCategory->id));
		}

		return $allCategoryIds;
	}
}