<?php

namespace App\Services\Customer;

use App\DTOs\Customer\ServiceDTO;
use App\Entities\Customer\ServiceEntity;
use App\Entities\Equipment\ServerEntity;
use App\Forms\Customer\ServiceForm;
use App\Helpers\Customer\ServiceHelper;
use App\Models\Customer\ServiceModel;
use DateTimeImmutable;
use DateTimeZone;
use RuntimeException;

class ServiceService extends CustomerService
{
    private $_form = null;
    private $_helper = null;
    public function __construct(ServiceModel $model)
    {
        parent::__construct($model);
        $this->addClassPaths('Service');
    }
    public function getDTOClass(): string
    {
        return ServiceDTO::class;
    }
    public function createDTO(array $formDatas): ServiceDTO
    {
        return new ServiceDTO($formDatas);
    }
    public function getEntityClass(): string
    {
        return ServiceEntity::class;
    }
    public function getFormService(): ServiceForm
    {
        if ($this->_form === null) {
            $this->_form = new ServiceForm();
            $this->_form->setAttributes([
                'pk_field'         =>  $this->getPKField(),
                'title_field'      => $this->getTitleField(),
                'table'            => $this->model->getTable(),
                'useAutoIncrement' => $this->model->useAutoIncrement(),
                'class_path' => $this->getClassPaths(false)
            ]);
        }
        return $this->_form;
    }
    public function getHelper(): ServiceHelper
    {
        if ($this->_helper === null) {
            $this->_helper = new ServiceHelper();
            $this->_helper->setAttributes([
                'pk_field'         =>  $this->getPKField(),
                'title_field'      => $this->getTitleField(),
                'table'            => $this->model->getTable(),
                'useAutoIncrement' => $this->model->useAutoIncrement(),
                'class_path' => $this->getClassPaths(false)
            ]);
        }
        return $this->_helper;
    }
    public function action_init_process(string $action, array $formDatas = []): void
    {
        $fields = [
            "site",
            "location",
            "clientinfo_uid",
            'serverinfo_uid',
            "rack",
            "line",
            "title",
            "start_at",
            "billing_at",
            "status",
            'sale',
            "history",
        ];
        $filters = [
            'site',
            'location',
            "rack",
            "line",
            'clientinfo_uid',
            'serverinfo_uid',
            'user_uid',
            'status',
        ];
        $indexFilter     = $filters;
        $batchjobFilters = [
            'site',
            'location',
            'clientinfo_uid',
            'status'
        ];
        switch ($action) {
            case 'create':
            case 'create_form':
            case 'modify':
            case 'modify_form':
                break;
            case 'view':
                $fields = [...$fields, 'created_at'];
                break;
            case 'index':
            case 'download':
                $fields = [
                    'site',
                    'location',
                    'clientinfo_uid',
                    'serverinfo_uid',
                    'sale',
                    'amount',
                    'billing_at',
                    'status',
                    'start_at',
                    'created_at'
                ];
                break;
            case 'alternative_create_form':
                $fields = ['serverinfo_uid'];
                break;
        }
        $this->getFormService()->setFormFields($fields);
        $this->getFormService()->setFormRules($action, $fields);
        $this->getFormService()->setFormFilters($filters);
        $this->getFormService()->setFormOptions($action, $filters, $formDatas);
        $this->getFormService()->setIndexFilters($indexFilter);
        $this->getFormService()->setBatchjobFilters($batchjobFilters);
    }
    //추가 기능
    //interval을 기준으로 최근 신규 서비스정보 가져오기
    final public function getNewServiceEntities(int $interval, string $status = STATUS['AVAILABLE']): array
    {
        return $this->getEntities(["start_at >= NOW()-INTERVAL {$interval} DAY" => null, "status" => $status]);
    }
    //서비스별 총 금액
    final public function getTotalAmounts($where = []): array
    {
        $rows = $this->model->groupBy('clientinfo_uid')->select("clientinfo_uid,SUM(amount) AS amount")
            ->where($where)
            ->get()->getResult();
        $amounts = [];
        foreach ($rows as $row) {
            $amounts[$row->clientinfo_uid] = $row->amount;
        }
        return $amounts;
    }
    //다음 달로 결제일 가져오기.(CLI용)
    final public function getNextMonthDate(ServiceEntity $entity): string
    {
        // $sql = "UPDATE serviceinfo SET billing_at =
        //         IF(DAY(billing_at) > DAY(LAST_DAY(billing_at)),
        //             LAST_DAY(DATE_ADD(billing_at, INTERVAL 1 MONTH)),
        //             DATE_ADD(billing_at, INTERVAL 1 MONTH)
        //         ) WHERE uid = ?";
        // return $this->model->query($sql, [$entity->getPK()]);
        // 입력된 날짜를 DateTime 객체로 변환
        $date = new DateTimeImmutable($entity->getBillingAt(), new DateTimeZone('Asia/Tokyo'));
        // 현재 일(day)을 저장
        $day = (int)$date->format('d');
        // 다음달로 이동 (DateInterval 사용)
        $date->modify('first day of next month');
        // 다음달의 마지막 날 계산
        $lastDayOfNextMonth = (int)$date->format('t');
        // 현재 날짜가 다음달의 마지막 날보다 크면 -> 마지막 날로 설정
        if ($day > $lastDayOfNextMonth) {
            $day = $lastDayOfNextMonth;
        }
        // 일(day)을 설정
        $date->setDate((int)$date->format('Y'), (int)$date->format('m'), $day);
        // 최종 결과 리턴 (YYYY-MM-DD)
        return $date->format('Y-m-d');
    }
    // 서비스금액관련처리
    private function saveAmount(ServiceEntity $entity): ServiceEntity
    {
        //총 서비스금액 구하기
        $server_amount = service('equipment_serverservice')->getCalculatedAmount($entity->getServerInfoUID());
        //기본:서버금액(서버비+서버파트(월비용))+상면비+회선비-할인액
        $entity->amount = (int)$server_amount + $entity->getRack() + $entity->getLine() - $entity->getSale();
        //총 서비스금액 설정 및 저장
        if (!$this->model->save($entity)) {
            // 저장 실패 시 예외 처리
            $errors = $this->model->errors();
            throw new RuntimeException("금액 업데이트 중 DB 저장 오류: " . implode(', ', $errors));
        }
        return $entity;
    }
    final public function saveAmountByPK(int $uid): ServiceEntity
    {
        $entity = $this->getEntity($uid);
        if (!$entity instanceof ServiceEntity) {
            throw new RuntimeException(static::class . '->' . __FUNCTION__ . "에서 오류발생:Return Type은 ServiceEntity만 가능");
        }
        return $this->saveAmount($entity);
    }
    //기본 기능부분
    protected function getEntity_process(mixed $entity): ServiceEntity
    {
        return $entity;
    }
    protected function create_process(array $formDatas): ServiceEntity
    {
        //서비스코드생성
        $formDatas['code'] = $formDatas['site'] . "_s" . uniqid();
        //서비스 생성
        $entity = parent::create_process($formDatas);
        if (!$entity instanceof ServiceEntity) {
            throw new RuntimeException(static::class . '->' . __FUNCTION__ . "에서 오류발생:Return Type은 ServiceEntity만 가능");
        }
        //서버정보 연결
        service('equipment_serverservice')->attatchToService($entity, $entity->getServerInfoUID());
        //서비스비용 설정
        $entity = $this->saveAmount($entity);
        //결제정보 생성
        service('paymentservice')->createByService($entity);
        return $entity;
    }
    protected function modify_process($entity, array $formDatas): ServiceEntity
    {
        //변경전 정보
        $oldEntity = clone $entity;
        //서비스 수정
        $entity = parent::modify_process($entity, $formDatas);
        if (!$entity instanceof ServiceEntity) {
            throw new RuntimeException(static::class . '->' . __FUNCTION__ . "에서 오류발생:Return Type은 ServiceEntity만 가능");
        }
        //신규 서비스 서버의 비용으로 재계산 서비스 금액 설정
        $entity = $this->saveAmount($entity);
        //기존 서비스용 결제비용 과 신규 서버스용으로 결제비용이 다르면 수정
        service('paymentservice')->modifyByService($oldEntity, $entity);
        //서버정보 연결 신규서버로 변경
        if ($oldEntity->getServerInfoUID() !== $entity->getServerInfoUID()) {
            // throw new RuntimeException("{$oldEntity->getServerInfoUID()} !== {$entity->getServerInfoUID()}");
            service('equipment_serverservice')->modifyByService($oldEntity, $entity);
        }
        return $entity;
    }
    //List 검색용
    //FormFilter 조건절 처리
    //검색어조건절처리
}