<?php

namespace App\Http\Controllers;

use App\Models\ContactUs;
use App\Services\NotificationService;
use App\Services\ResponseService;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Session;
use Throwable;

/*Create Method which are common across the system*/

class Controller extends BaseController
{
    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;

    public function changeRowOrder(Request $request)
    {
        try {
            $request->validate([
                'data'   => 'required|array',
                'table'  => 'required|string',
                'column' => 'nullable',
            ]);
            $column = $request->column ?? "sequence";

            $data = [];
            foreach ($request->data as $index => $row) {
                $data[] = [
                    'id'            => $row['id'],
                    (string)$column => $index
                ];
            }
            DB::table($request->table)->upsert($data, ['id'], [(string)$column]);
            ResponseService::successResponse("Order Changed Successfully");
        } catch (Throwable $th) {
            ResponseService::logErrorResponse($th);
            ResponseService::errorResponse();
        }
    }

    public function changeStatus(Request $request)
    {
        try {
            $request->validate([
                'id'     => 'required|numeric',
                'status' => 'required|boolean',
                'table'  => 'required|string',
                'column' => 'nullable',
            ]);
            $column = $request->column ?? "status";

            //Special case for deleted_at column
            if ($column == "deleted_at") {
                //If status is active then deleted_At will be empty otherwise it will have the current time
                $request->status = ($request->status) ? null : now();
            }
            DB::table($request->table)->where('id', $request->id)->update([(string)$column => $request->status]);

            if ($request->table === 'categories') {
                $category = DB::table('categories')->where('id', $request->id)->first();

                if (!$category) {
                    return ResponseService::errorResponse("Category not found");
                }

                // If trying to activate a category but its parent is inactive
                if ($request->status && $category->parent_category_id) {
                    $parent = DB::table('categories')->where('id', $category->parent_category_id)->first();
                    if ($parent && !$parent->status) {
                        return ResponseService::errorResponse("Cannot activate subcategory while parent is inactive");
                    }
                }

                // Update the category itself
                DB::table('categories')->where('id', $request->id)->update([$column => $request->status]);

                // If status = 0, recursively deactivate all subcategories
                if (!$request->status) {
                    $this->deactivateSubcategories($request->id, $column);
                }


                return ResponseService::successResponse("status updated successfully");
            }

            if ($request->table === 'items') {
                $item = DB::table('items')->where('id', $request->id)->first();
                if ($item) {
                    $user = DB::table('users')->where('id', $item->user_id)->first();
                    if ($user) {
                        $userToken = DB::table('user_fcm_tokens')
                            ->where('user_id', $user->id)
                            ->pluck('fcm_token')
                            ->toArray();

                        if (!empty($userToken)) {
                            NotificationService::sendFcmNotification(
                                $userToken,
                                'About ' . $item->name,
                                "Your Advertisement is " . (is_null($request->status) ? 'Active' : 'Inactive') . " by Admin",
                                'item-update',
                                ['id' => $request->id]
                            );
                        }
                    }
                }
            }
            ResponseService::successResponse("Status Updated Successfully");
        } catch (Throwable $th) {
            ResponseService::logErrorResponse($th);
            ResponseService::errorResponse();
        }
    }

    //     public function readLanguageFile() {
    //         try {
    //             //    https://medium.com/@serhii.matrunchyk/using-laravel-localization-with-javascript-and-vuejs-23064d0c210e
    //             header('Content-Type: text/javascript');
    // //        $labels = Cache::remember('lang.js', 3600, static function () {
    // //            $lang = app()->getLocale();
    //             $lang = Session::get('language');
    // //            $lang = app()->getLocale();
    //             $test = $lang->code ?? "en";
    //             $files = resource_path('lang/' . $test . '.json');
    // //            return File::get($files);
    // //        });]
    //             echo('window.languageLabels = ' . File::get($files));
    //             http_response_code(200);
    //             exit();
    //         } catch (Throwable $th) {
    //             ResponseService::errorResponse($th);
    //         }
    //     }

    public function readLanguageFile()
    {
        try {
            header('Content-Type: text/javascript');

            $lang = Session::get('language');
            $code = $lang->code ?? 'en';

            $file = resource_path("lang/{$code}.json");

            if (!file_exists($file)) {
                echo 'window.languageLabels = {};';
                exit;
            }

            $json = File::get($file);

            // Validate JSON
            json_decode($json);
            if (json_last_error() !== JSON_ERROR_NONE) {
                echo 'window.languageLabels = {};';
                exit;
            }

            echo "window.languageLabels = {$json};";
            exit;
        } catch (Throwable $th) {
            echo 'window.languageLabels = {};';
            exit;
        }
    }

    public function contactUsUIndex()
    {
        ResponseService::noPermissionThenSendJson('user-queries-list');
        return view('contact-us');
    }

    public function contactUsShow(Request $request)
    {
        ResponseService::noPermissionThenSendJson('user-queries-list');
        $offset = $request->offset ?? 0;
        $limit = $request->limit ?? 10;
        $sort = $request->input('sort', 'sequence');
        $order = $request->order ?? 'DESC';

        $sql = ContactUs::orderBy($sort, $order);

        if ($sort !== 'created_at') {
            $sql->orderBy('created_at', 'desc');
        }

        if (!empty($_GET['search'])) {
            $search = $_GET['search'];
            $sql->where('id', 'LIKE', "%$search%")
                ->orwhere('name', 'LIKE', "%$search%")
                ->orwhere('subject', 'LIKE', "%$search%")
                ->orwhere('message', 'LIKE', "%$search%");
        }
        $total = $sql->count();
        $sql->skip($offset)->take($limit);
        $result = $sql->get();
        $bulkData = array();
        $bulkData['total'] = $total;
        $rows = array();
        foreach ($result as $row) {
            $rows[] = $row->toArray();
        }

        $bulkData['rows'] = $rows;
        return response()->json($bulkData);
    }
    private function deactivateSubcategories($parentId, $column = 'status')
    {
        $subcategories = DB::table('categories')->where('parent_category_id', $parentId)->get();

        foreach ($subcategories as $sub) {
            DB::table('categories')->where('id', $sub->id)->update([$column => 0]);
            $this->deactivateSubcategories($sub->id, $column); // recursive call
        }
    }
}