<?php

namespace App\Http\Controllers\Api;

use App\Enums\ExaminationTypeEnum;
use App\Http\Controllers\Controller;
use App\Models\Department;
use App\Models\Direction;
use App\Models\EntranceExamination;
use App\Models\Faculty;
use App\Models\Subject;
use App\Services\DirectonHtmlBuilder;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\URL;

class CalculatorController extends Controller
{
    public function findDirectionFromSubjects(Request $request)
    {
        $getJSON = $request->input()['predmets'];
        $calcultatorSubjects = json_decode($getJSON);

        $filteredDirectionIds = EntranceExamination::all()
            ->select("direction_id", "subject_id", "subject_type_id", "examination_type_id")
            ->where('examination_type_id', '=', ExaminationTypeEnum::Ege->value)
            ->reduce(function (array $carry, $examine) {

                [
                    'direction_id' => $direction_id,
                    'subject_id' => $subject_id,
                    'subject_type_id' => $subject_type_id
                ] = $examine;

                $carry[$direction_id][$subject_type_id][] = $subject_id;
                $carry[$direction_id][$subject_type_id] = array_unique($carry[$direction_id][$subject_type_id]);

                return $carry;
            }, []);
        $directionIds = collect($filteredDirectionIds)
            ->filter(function ($subjectTypes) use ($calcultatorSubjects) {
                $requiredSubjects = $subjectTypes[1];
                return array_reduce($requiredSubjects, function ($acc, $requiredSubjects) use ($calcultatorSubjects) {
                    if (!in_array($requiredSubjects, $calcultatorSubjects)) {
                        return false;
                    }
                    return $acc;
                }, true);
            })
            ->filter(function ($subjectTypes) use ($calcultatorSubjects) {
                if (array_key_exists(2, $subjectTypes)) {
                    $optionalSubjectsInCalculator = collect($subjectTypes[2])
                        ->filter(fn($optionalSubject) => in_array($optionalSubject, $calcultatorSubjects));
                    return $optionalSubjectsInCalculator->count() !== 0;
                }
                return true;
            })
            ->map(fn($subjectTypes, $directionId) => $directionId);

        $directions = Direction::whereIn('id', $directionIds)->get();
//        dd($directionIds);
        $dataToGenerateHTML = $this->getDirectionsToModals($directionIds);
//        dd($dataToGenerateHTML);
        $generateHtml = function ($acc, $direction) {
            $builder = new DirectonHtmlBuilder($direction);
            $offCanvasModal = $builder->getHTML();
            return "{$acc} $offCanvasModal";
        };
        $html = collect($dataToGenerateHTML)->reduce($generateHtml, '');

        return response()->json(['html' => $html]);
    }

    public function getDirectionsToModals($directionIds)
    {
        //phpcs:disable
        $directionsGroups = Direction::with(['department'])
            ->leftJoin('direction_direction_profile', 'directions.id', '=', 'direction_direction_profile.direction_id')
            ->leftJoin('direction_profiles','direction_direction_profile.direction_profile_id','=','direction_profiles.id')
            ->leftJoin('departments', 'directions.department_id', '=', 'departments.id')
            ->leftJoin('faculties', 'departments.faculty_id', '=', 'faculties.id')
            ->leftJoin('education_levels', 'directions.education_level_id', '=', 'education_levels.id')
            ->leftJoin('education_forms', 'directions.education_form_id', '=', 'education_forms.id')
            ->leftJoin('entrance_examinations', 'entrance_examinations.direction_id', '=', 'directions.id')
            ->leftJoin('educational_institutions','faculties.educational_institution_id','=','educational_institutions.id')
            ->leftJoin('examination_types', 'entrance_examinations.examination_type_id', '=', 'examination_types.id')
            ->leftJoin('subject_types', 'entrance_examinations.subject_type_id', '=', 'subject_types.id')
            ->leftJoin('subjects', 'entrance_examinations.subject_id', '=', 'subjects.id')
            ->select([
                'directions.id as direction_id',
                'directions.code as direction_code',
                'directions.name as direction_name',
                'directions.description as direction_description',
                'directions.budget_places as direction_budget_places',
                'directions.paid_places as direction_paid_places',
                'directions.cost_paid_place as direction_cost_paid_place',
                'directions.period as direction_period',
                'education_levels.name as education_level_name',
                'education_forms.name as education_form_name',
                'faculties.id as faculty_id',
                'faculties.name as faculty_name',
                'faculties.description as faculty_description',
                'educational_institutions.id as educational_institution_id',
                'educational_institutions.name as educational_institution_name',
                'direction_profiles.id as direction_profile_id',
                'entrance_examinations.scores as entrance_examination_score',
                'examination_types.name as examination_type_name',
                'subject_types.name as subject_type_name',
                'subjects.name as subject_name',
                'direction_profiles.name as direction_profile_name',
            ])
            ->whereIn('directions.id', $directionIds)
            ->get()->toArray();
        //phpcs:enable
        $branches = [];
        $directionsGroupWithOutBranch = array_reduce($directionsGroups, function ($acc, $direction) use (&$branches) {

            if ($direction['educational_institution_id'] == 3) {
                $branches[] = $direction;
            }
            $acc[] = $direction;
            return $acc;
        }, []);

        $groupedDirections = collect($directionsGroupWithOutBranch)
            ->reduce(function ($carry, $item) use ($branches) {
                [
                    'direction_id' => $directionId,
                    'direction_name' => $directionName,
                    'direction_code' => $directionCode,
                    'educational_institution_id' => $educational_institution_id,
                    'educational_institution_name' => $educationalInstitutionName,
                    'faculty_id' => $facultyId,
                    'faculty_name' => $facultyName,
                    'faculty_description' => $facultyDescription,
                    'education_level_name' => $educationLevelName,
                    'education_form_name' => $educationFormName,
                    'entrance_examination_score' => $entranceExaminationScore,
                    'examination_type_name' => $examinationTypeName,
                    'subject_type_name' => $subjectTypeName,
                    'subject_name' => $subjectName,
                    'direction_profile_name' => $directionProfileName,
                    'direction_budget_places' => $directionBudgetPlaces,
                    'direction_paid_places' => $directionPaidPlaces,
                    'direction_cost_paid_place' => $directionCostPaidPlace,
                    'direction_period' => $directionPeriod,
                    'direction_description' => $directionDescription,
                ] = $item;

//                $carry[$facultyName]['id'] = $facultyId;
//                $carry[$facultyName]['name'] = $facultyName;
//                $carry[$facultyName]['description'] = $facultyDescription;
                $carry[$directionName]['name'] =  $directionName;
                $carry[$directionName]['id'] =  $directionId;
                $carry[$directionName]['code'] =  $directionCode;
                $carry[$directionName]['education_level'] =  $educationLevelName;
                $carry[$directionName]['education_form'][] = $educationFormName;
                $carry[$directionName]['education_form'] = array_unique(
                    $carry[$directionName]['education_form']
                );
                $carry[$directionName]['entrance_examinations']
                [$examinationTypeName][$subjectTypeName][$subjectName] = $entranceExaminationScore;
                $carry[$directionName]['budget_places']
                [$educationalInstitutionName][$directionProfileName][$educationFormName] = $directionBudgetPlaces;


                $carry[$directionName]['paid_places']
                [$educationalInstitutionName][$directionProfileName][$educationFormName] = $directionPaidPlaces;

                /*$carry[$facultyName]['directions'][$directionName]
                ['paid_places'][$educationFormName] = $directionPaidPlaces;*/


                $carry[$directionName]
                ['cost_paid_place'][$educationFormName] = $directionCostPaidPlace;
                $carry[$directionName]['period'][$educationFormName] = $directionPeriod;
                $carry[$directionName]['description'] = $directionDescription;

                foreach ($branches as $branch) {
                    [
                        'direction_name' => $directionNameBranch,
                        'educational_institution_name' => $educationalInstitutionNameBranch,
                        'direction_profile_name' => $directionProfileNameBranch,
                        'education_form_name' => $educationFormNameBranch,
                        'direction_budget_places' => $directionBudgetPlacesBranch
                    ] = $branch;
                    if ($directionNameBranch === $directionName) {
                        $carry[$directionName]['budget_places']
                        [$educationalInstitutionNameBranch][$directionProfileNameBranch]
                        [$educationFormNameBranch] = $directionBudgetPlacesBranch;
                    }
                }


                return $carry;
            }, []);

        return $groupedDirections;
    }
}