<?php

namespace App\Http\Controllers;

use App\Championship;
use App\Member;
use App\Module;
use App\Result;
use PhpParser\Node\Expr\Cast\Object_;
use Validator;
use PDF;
use Illuminate\Http\Request;

class CertificationsController extends Controller
{
    public function search(Request $request)
    {

        /*
        * Валидация полей
        */

        $validator = Validator::make(
            $request->all(),
            [
                "q" => ['required'],
            ]
        );

        /*
         * Проверяем результаты валидации
         */

        if ($validator->fails())
            return response()
                ->json(["status" => false, "errors" => $validator->messages()])
                ->setStatusCode(400, "Error fields");

        $members = Member::where('name', 'like', "%$request->q%")->get();

        $certifications = [];

        foreach ($members as $member) {

            $champ = Championship::find($member->championship);

            if ($champ->status !== 3) continue;

            $certifications[] = [
                "champ_id" => $member->championship,
                "member_id" => $member->id,
                "title" => $champ->title,
                "type" => "certificate",
                "name" => $member->name
            ];

            $results = $this->getMemberResult($member->championship);

            $position = 1;

            foreach ($results as $result) {

                if ($position > 3) break;

                if ($result['member_id'] === $member->id) {
                    $certifications[] = [
                        "champ_id" => $member->championship,
                        "member_id" => $member->id,
                        "title" => $champ->title,
                        "type" => "diploma",
                        "name" => $member->name,
                        "position" => $position
                    ];
                }

                $position = $position + 1;
            }

        }

        return $certifications;


    }

    public function downloadDiploma(Request $request)
    {

        $member = Member::find($request->member);

        $champ = Championship::find($member->championship);

        $results = $this->getMemberResult($member->championship);

        $position = 1;

        $certificate = NULL;

        foreach ($results as $result) {

            if ($position > 3) break;

            if ($result['member_id'] === $member->id) {
                $certificate = [
                    "champ_id" => $member->championship,
                    "member_id" => $member->id,
                    "title" => $champ->title,
                    "city" => $champ->cities->title,
                    "before_date" => $champ->from_date,
                    "after_date" => $champ->to_date,
                    "month" => $champ->months->title,
                    "year" => $champ->year,
                    "competence" => $champ->competences->title,
                    "type" => "diploma",
                    "name" => $member->name,
                    "position" => $position
                ];
            }

            $position = $position + 1;
        }

        $certificate = (object)$certificate;

        //return $certificate;

        $pdf = PDF::loadView('diploma', compact('certificate'));
        return $pdf->download('С' . $champ->id . 'M' . $member->id . 'D' . '.pdf');
    }

    public function downloadCertificate(Request $request)
    {

        $member = Member::find($request->member);
        $champ = Championship::find($member->championship);

        $certificate = NULL;

        $certificate = [
            "champ_id" => $member->championship,
            "member_id" => $member->id,
            "title" => $champ->title,
            "city" => $champ->cities->title,
            "before_date" => $champ->from_date,
            "after_date" => $champ->to_date,
            "month" => $champ->months->title,
            "year" => $champ->year,
            "competence" => $champ->competences->title,
            "name" => $member->name
        ];

        $certificate = (object)$certificate;

        $pdf = PDF::loadView('certificate', compact('certificate'));
        return $pdf->download('С' . $champ->id . 'M' . $member->id . 'С' . '.pdf');
    }

    private function getMemberResult($champ_id)
    {
        $i = 0;

        /*
         * Список участников с результатами
         */

        $membersResults = [];

        $members = Member::where('championship', $champ_id)->get();

        /*
         * Загрузка всех модулей чемпионата
         */

        $modules = Module::where('championship', $champ_id)->get();

        /*
         * Перебираем всех участников и подсчитываем
         * баллы
         */

        foreach ($members as $member) {

            /*
             * Массив для хранения результатов
             * каждого модуля для участника
             */

            $modulesResults = [];

            /*
             * Переменная для подсчета общего кол-ва
             * очков участника
             */

            $allScore = 0;

            /*
             * Перебираем все модули
             */

            foreach ($modules as $module) {

                /*
                 * Загружаем все критерии модуля
                 */

                $criteria = Result::where('module_id', $module->id)
                    ->where('member_id', $member->id)
                    ->get();

                /*
                 * Перемнная для хранения очков набранных
                 * в данном модуле
                 */

                $modulePoints = 0;

                /*
                 * Перебираем критерии и складываем баллы
                 */

                foreach ($criteria as $criterion) {

                    /*
                     * Складываем баллы в переменную $modulePoints
                     */

                    $modulePoints = $modulePoints + $criterion->points * 1;
                }

                /*
                 * Складываем баллы в переменную с общим кол-вом
                 * очков за все модули
                 */

                $allScore = $allScore + $modulePoints;

                /*
                 * Добавляем результаты и название модуля в массив $modulesResults
                 */

                $modulesResults[] = [
                    "title" => $module->title,
                    "points" => round($modulePoints, 2)
                ];
            }

            /*
             * Добавляем пользователя в массив с результати
             * участников
             */

            $membersResults[] = [
                "member_id" => $member->id,
                "name" => $member->name,
                "university" => $member->university,
                "modules" => $modulesResults,
                "all_score" => round($allScore, 2)
            ];

            $i = $i + 1;
        }

        /*
         * Сортируем массив по ключу all_score (от лучшего результата к худшему)
         */

        $membersResults = collect($membersResults)
            ->sortBy('all_score')
            ->reverse()
            ->toArray();

        /*
         * Возвращаем массив с результатами
         */

        return $membersResults;
    }
}