<?php

namespace App\Http\Controllers\Product;

use App\Helpers\Logger;
use App\Helpers\PaginationHelper;
use App\Http\Controllers\Controller;
use App\Models\Brand;
use App\Models\Permission;
use App\Models\Product;
use App\Models\ProductCategory;
use App\Models\ProductModel;
use App\Models\ProductSubcategory;
use Illuminate\Auth\Access\Response;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class ProductController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
     */
    public function index(Request $request)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_viewAny'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $search_types = [];
        if(config('app.barcode_mode') == 'static'){
            array_push($search_types,array("value" => "barcode", "name" => "barcode"));
        }
        array_push($search_types,array("value" => "category", "name" => "category"));
        array_push($search_types,array("value" => "subcategory", "name" => "subcategory"));
        array_push($search_types,array("value" => "brand", "name" => "brand"));
        array_push($search_types,array("value" => "model", "name" => "model"));
        array_push($search_types,array("value" => "name", "name" => "name"));
        array_push($search_types,array("value" => "description", "name" => "description"));

        array_push($search_types,array("value" => "available", "name" => "available"));
        array_push($search_types,array("value" => "loans", "name" => "loaned"));
        array_push($search_types,array("value" => "reservations", "name" => "reserved"));
        array_push($search_types,array("value" => "total", "name" => "total"));

        $PerPagination = $request->input('p') ?? 10;
        $search_term =  $request->input('search_term');
        $search_type = $request->input('search_type');
        $search_compare = $request->input('search_compare');

        if($search_term != ""){
            switch ($search_type){
                case "category":
                    switch($search_compare){
                        case("="):
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('category',function ($query) use ($search_term){
                                    $query->where('name','=',$search_term);
                                });
                            })->paginate($PerPagination);
                        break;
                        default:
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('category',function ($query) use ($search_term){
                                    $query->where('name','like','%' . $search_term . '%');
                                });
                            })->paginate($PerPagination);
                        break;
                    }
                break;
                case "subcategory":
                    switch($search_compare){
                        case("="):
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('subcategory',function ($query) use ($search_term){
                                    $query->where('name','=',$search_term);
                                });
                            })->paginate($PerPagination);
                        break;
                        default:
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('subcategory',function ($query) use ($search_term){
                                    $query->where('name','like','%' . $search_term . '%');
                                });
                            })->paginate($PerPagination);
                        break;
                    }
                break;
                case "brand":
                    switch($search_compare){
                        case("="):
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('brand',function ($query) use ($search_term){
                                    $query->where('name','=',$search_term);
                                });
                            })->paginate($PerPagination);
                        break;
                        default:
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('brand',function ($query) use ($search_term){
                                    $query->where('name','like','%' . $search_term . '%');
                                });
                            })->paginate($PerPagination);
                        break;
                    }
                break;
                case "model":
                    switch($search_compare){
                        case("="):
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('model',function ($query) use ($search_term){
                                    $query->where('name','=',$search_term);
                                });
                            })->paginate($PerPagination);
                        break;
                        default:
                            $products = Product::where(function ($query) use ($search_term){
                                $query->whereHas('model',function ($query) use ($search_term){
                                    $query->where('name','like','%' . $search_term . '%');
                                });
                            })->paginate($PerPagination);
                        break;
                    }
                break;
                case "name":
                    switch($search_compare){
                        case("="):
                            $products = Product::where('name','=',$search_term)->paginate($PerPagination);
                            break;
                        default:
                            $products = Product::where('name','like','%' . $search_term . '%')->paginate($PerPagination);
                            break;
                    }
                break;
                case "description":
                    switch($search_compare){
                        case("="):
                            $products = Product::where('description','=',$search_term)->paginate($PerPagination);
                            break;
                        default:
                            $products = Product::where('description','like','%' . $search_term . '%')->paginate($PerPagination);
                            break;
                    }
                break;
                case "available":
                    $all_products = Product::all();
                    $product_collection = collect();
                    foreach($all_products as $product){
                        $loans = count($product->loans);
                        $reservations = count($product->reservations);
                        $total = $product->total;
                        $available = $total - ($loans + $reservations);
                        switch($search_compare){
                            case(">="):
                                if($available >= $search_term){
                                    $product_collection->add($product);
                                }
                            break;
                            case("<="):
                                if($available <= $search_term){
                                    $product_collection->add($product);
                                }
                            break;
                            case("="):
                                if($available == $search_term){
                                    $product_collection->add($product);
                                }
                            break;
                            default:
                                if($available == $search_term){
                                    $product_collection->add($product);
                                }
                            break;
                        }

                    }
                    $products = PaginationHelper::paginate($product_collection, $PerPagination);
                break;
                case "loans":
                    switch($search_compare){
                        case(">="):
                            $products = Product::has('loans', '>=' , $search_term)->paginate($PerPagination);
                            break;
                        case("<="):
                            $products = Product::has('loans', '<=' , $search_term)->paginate($PerPagination);
                            break;
                        case("="):
                            $products = Product::has('loans', '=' , $search_term)->paginate($PerPagination);
                            break;
                        default:
                            $products = Product::has('loans', '=' , $search_term)->paginate($PerPagination);
                            break;
                    }
                break;
                case "reservations":
                    switch($search_compare){
                        case(">="):
                            $products = Product::has('reservations', '>=' , $search_term)->paginate($PerPagination);
                            break;
                        case("<="):
                            $products = Product::has('reservations', '<=' , $search_term)->paginate($PerPagination);
                            break;
                        case("="):
                            $products = Product::has('reservations', '=' , $search_term)->paginate($PerPagination);
                            break;
                        default:
                            $products = Product::has('reservations', '=' , $search_term)->paginate($PerPagination);
                            break;
                    }
                break;
                case "total":
                    switch($search_compare){
                        case(">="):
                            $products = Product::where('total','>=',$search_term)->paginate($PerPagination);
                            break;
                        case("<="):
                            $products = Product::where('total','<=',$search_term)->paginate($PerPagination);
                            break;
                        case("="):
                            $products = Product::where('total','=',$search_term)->paginate($PerPagination);
                            break;
                        default:
                            $products = Product::where('total','=',$search_term)->paginate($PerPagination);
                            break;
                    }
                    break;
            }
        }
        else{
            $products = Product::paginate($PerPagination);
        }

        return view('products.index')
            ->with('search_types',$search_types)
            ->with('data',$products)
            ->with('data_name','product')
            ->with('data_names','products')
        ;
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
     */
    public function deleted(Request $request)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_viewAny_deleted'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $search_types = [];
        if(config('app.barcode_mode') == 'static'){
            array_push($search_types,array("value" => "barcode", "name" => "barcode"));
        }
        array_push($search_types,array("value" => "category", "name" => "category"));
        array_push($search_types,array("value" => "subcategory", "name" => "subcategory"));
        array_push($search_types,array("value" => "brand", "name" => "brand"));
        array_push($search_types,array("value" => "model", "name" => "model"));
        array_push($search_types,array("value" => "name", "name" => "name"));
        array_push($search_types,array("value" => "description", "name" => "description"));

        $PerPagination = $request->input('p') ?? 10;
        $search_term =  $request->input('search_term');
        $search_type = $request->input('search_type');
        $search_compare = $request->input('search_compare');

        $products = Product::onlyTrashed()->Paginate($PerPagination);

        return view('products.deleted')
            ->with('search_types',$search_types)
            ->with('data',$products)
            ->with('data_name','product')
            ->with('data_names','products')
        ;
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
     */
    public function create()
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_create'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        return view('products.create')
            ->with('categories',ProductCategory::all())
            ->with('subcategories',ProductSubcategory::all())
            ->with('brands',Brand::has('models')->get())
            ->with('models',ProductModel::all())
        ;
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\RedirectResponse
     */
    public function store(Request $request)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_create'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $product = new Product();
        if(isset($request->barcode)){
            $product->barcode = $request->barcode;
        }
        $product->product_category_id = $request->category_id;
        $product->product_subcategory_id = $request->subcategory_id;
        $product->brand_id = $request->brand_id;
        $product->product_model_id = $request->model_id;
        $product->name = $request->name;
        $product->description = $request->description;
        $product->save();

        Logger::LogCreated($product->id,get_class($product));

        return redirect()->route('products.index');
    }

    /**
     * Display the specified resource.
     *
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
     */
    public function show($product)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_view'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $object = Product::withTrashed()->where('id','=',$product)->first();
        return view('products.show')
            ->with('data',$object)
        ;
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @return \Illuminate\Contracts\Foundation\Application|\Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View
     */
    public function edit($product)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_edit'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $object = Product::withTrashed()->where('id','=',$product)->first();

        return view('products.edit')
            ->with('categories',ProductCategory::withTrashed()->get())
            ->with('subcategories',ProductSubcategory::withTrashed()->get())
            ->with('brands',Brand::withTrashed()->has('models')->get())
            ->with('models',ProductModel::withTrashed()->get())
            ->with('data',$object)
            ->with('data_name','product')
        ;
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\RedirectResponse
     */
    public function update(Request $request,$product)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_edit'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $object = Product::withTrashed()->where('id','=',$product)->first();

        if(isset($request->barcode)){
            if($object->barcode != $request->barcode){
                Logger::LogEdited($object->id,get_class($object),"Stregkode : ".$object->barcode." til ".$request->barcode);
                $object->barcode = $request->barcode;
            }
        }
        if($object->product_category_id != $request->category_id) {
            $category = ProductCategory::where('id','=', $request->category_id)->first();
            Logger::LogEdited($object->id,get_class($object),"Kategori : ".$object->category->name." til ".$category->name);
            $object->product_category_id = $request->category_id;
        }
        if($object->product_subcategory_id != $request->subcategory_id) {
            $subcategory = ProductSubcategory::where('id','=', $request->subcategory_id)->first();
            Logger::LogEdited($object->id,get_class($object),"Underkategori : ".$object->subcategory->name." til ".$subcategory->name);
            $object->product_subcategory_id = $request->subcategory_id;
        }
        if($object->brand_id != $request->brand_id) {
            $brand = Brand::where('id','=', $request->brand_id)->first();
            Logger::LogEdited($object->id,get_class($object),"Fabrikant : ".$object->brand_id->name." til ".$brand->name);
            $object->brand_id = $request->brand_id;
        }
        if($object->product_model_id != $request->model_id) {
            $model = ProductModel::where('id','=', $request->model_id)->first();
            Logger::LogEdited($object->id,get_class($object),"Model : ".$object->model->name." til ".$model->name);
            $object->product_model_id = $request->model_id;
        }
        if($object->name != $request->name) {
            Logger::LogEdited($object->id,get_class($object),"Navn : ".$object->name." til ".$request->name);
            $object->name = $request->name;
        }
        if($object->description != $request->description) {
            Logger::LogEdited($object->id,get_class($object),"Beskrivels : ".$object->description." til ".$request->description);
            $object->description = $request->description;
        }

        $object->save();

        return redirect()->route('products.index');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function destroy($product)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_delete'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $object = Product::withTrashed()->where('id','=',$product)->first();
        Logger::LogDeleted($object->id,get_class($object));
        $object->delete();
        return redirect()->route('products.index');
    }


    /**
     * Restore the specified resource from storage.
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function restore($product)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_restore'))
            ? Response::allow()
            : Response::deny('you are not the chosen one');

        $object = Product::withTrashed()->where('id','=',$product)->first();
        Logger::LogRestored($object->id,get_class($object));
        $object->restore();

        return redirect()->route('products.deleted');
    }


    /**
     * Remove the specified resource from storage.
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function forceDelete($product)
    {
        Auth::user()->role->permissions->contains(Permission::firstWhere('name', '=', 'products_delete_force'))
        ? Response::allow()
        : Response::deny('you are not the chosen one');

        $object = Product::withTrashed()->where('id','=',$product)->first();
        Logger::LogForceDeleted($object->id,get_class($object));
        $object->forceDelete();

        return redirect()->route('products.deleted');
    }

    /**
     * Add the specified amount to the Pool.
     *
     * @return \Illuminate\Http\RedirectResponse
     */
    public function amount_add($product,Request $request)
    {
        $object = Product::withTrashed()->where('id','=',$product)->first();
        $object->total += $request->amount;
        $object->save();
        Logger::LogAmountAdded($object->id,get_class($object),$request->amount);

        return redirect()->route('products.show',['product' => $product]);
    }

    /**
     * Remove the specified amount from the Pool.
     *
     * @param  \App\Models\Product  $product
     * @return \Illuminate\Http\RedirectResponse
     */
    public function amount_remove(Product $product,Request $request)
    {
        $object = Product::withTrashed()->where('id','=',$product)->first();
        $object->total -= $request->amount;
        $object->save();
        Logger::LogAmountRemoved($object->id,get_class($object),$request->amount);

        return redirect()->route('products.show',['product' => $product]);
    }
}