<?php

namespace App\Service;

use App\Model\CalendarYear;
use App\Model\CalendarYearDays;
use Illuminate\Support\Facades\DB;

class CalendarService extends Service
{
    public function createCalendar($year = 0){
        if(empty($year)) $year = date("Y");

        try {
            DB::beginTransaction();

            $year_model = CalendarYear::where('year',$year)->first();
            if(empty($year_model)){
                $year_model = new CalendarYear();
                list($status, $msg) = $this->getHoliday($year);
                $days_stamp = $this->generateTimestampsForYear($year,$msg);

                if(! empty($days_stamp)){
                    //子表更新
                    CalendarYearDays::insert($days_stamp);

                    $year_model->is_update_holidays = 1;
                }

                //主表更新
                $year_model->year = $year;
                $year_model->save();
            }else{
                if($year_model->is_update_holidays > 0) return [false, '已更新' . $year . '年的节假日信息'];

                list($status, $msg) = $this->getHoliday($year);
                if(empty($msg)) return [false, '未获取到'. $year . '年的节假日信息'];

                CalendarYearDays::whereIn('time_stamp', array_keys($msg))->delete();
                CalendarYearDays::insert(array_values($msg));
            }

            DB::commit();
        }catch (\Throwable $exception){dd($exception->getMessage(),$exception->getLine());
            DB::rollBack();
            return [false, $exception->getMessage()];
        }

        return [true, ''];
    }

   function generateTimestampsForYear($year, $holidays){
        // 创建一个 DateTime 对象，设置为当年的第一天
        $date = new \DateTime("$year-01-01");
        //设置时间到午夜
        $date->setTime(0, 0, 0);
        // 获取当年最后一天
        $endOfYear = new \DateTime("$year-12-31");
        // 创建一个空数组来保存时间戳
        $timestamps = []; // 循环直到到达当年的最后一天

        while ($date <= $endOfYear){
           if(isset($holidays[$date->getTimestamp()])){
               $t = $holidays[$date->getTimestamp()] ?? [];
               $timestamps[] = [
                   'time_stamp' => $date->getTimestamp(),
                   'is_holiday' => $t['is_holiday'],
                   'holiday_title' => $t['holiday_title']
               ];
           }else{
               $timestamps[] = [
                   'time_stamp' => $date->getTimestamp(),
                   'is_holiday' => 0,
                   'holiday_title' => ''
               ];
           }
           $date->modify('+1 day');
        }

        return $timestamps;
    }

   function getHoliday($year){
        $return = [];

        $url = 'http://api.jiejiariapi.com/v1/holidays/' . $year;
        list($status, $msg) = $this->get_helper($url);

        if(! $status) return [false, $return];
        if(! is_array($msg) || $msg == 'Year not found') return [false, $return];

        foreach ($msg as $value){
            $time =  strtotime($value['date'] . "00:00:00");
            $return[$time] = [
                'time_stamp' => strtotime($value['date'] . "00:00:00"),
                'is_holiday' => $value['isOffDay'] ? 1 : 0,
                'holiday_title' => $value['name']
            ];
        }

        return [true, $return];
   }

    public function get_helper($url, $header=[], $timeout = 20){
        $ch = curl_init();
        curl_setopt_array($ch, array(
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_ENCODING => '',
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => $timeout,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => 'GET',
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_HTTPHEADER => $header,
        ));
        $r = curl_exec($ch);

        if ($r === false) {
            // 获取错误号
            $errorNumber = curl_errno($ch);
            // 获取错误信息
            $errorMessage = curl_error($ch);
            $message = "cURL Error #{$errorNumber}: {$errorMessage}";
            return [false, $message];
        }

        curl_close($ch);
        $return = json_decode($r, true);

        return [true, $return];
    }
}