<?php

namespace app\api\model\app\sign;

use think\Model;
use think\Db;
use app\common\model\User;
class Log extends Model
{


    // 表名
    protected $name = 'app_sign_log';


    // 开启自动写入时间戳字段
    protected $autoWriteTimestamp = 'int';
    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = 'updatetime';
    protected $hidden = ['createtime', 'updatetime'];

    // 追加属性
    protected $append = [

    ];


    // 获取签到记录
    public static function getList ($userId,$month = '') {


        $month = $month ? $month : date('Y-m');

        // if ($month > date('Y-m')) {
        //     throw new Exception('只能查看当前月之前的签到记录');
        // }

        $sign = self::where('user_id', $userId)->where('date', 'like', $month . '%')->order('date', 'desc')->select();
        $sign_dates = array_column($sign, 'date');

        $totime = time();
        $today = date('Y-m-d');
        // 要查询的是否是当前月
        $is_current = ($month == date('Y-m')) ? true : false;

        // 所选月开始时间戳
        $month_start_time = strtotime($month);
        // 所选月总天数
        $month_days = date('t', $month_start_time);

        $days = [];
        for($i = 1; $i <= $month_days; $i ++) {
            $for_time = $month_start_time + (($i - 1) * 86400);
            $for_date = date('Y-m-d', $for_time);

            // 如果不是当前月，全是 before, 如果是当前月判断 日期是当前日期的 前面，还是后面
            $current = !$is_current ? ($month > date('Y-m') ? 'after' : 'before') :
                ($for_date == $today ? 'today' :
                    ($for_date < $today ? 'before' : 'after'));

            $days[] = [
                'is_sign' => in_array($for_date, $sign_dates),      // 判断循环的日期，是否在查询的签到记录里面
                'date' => $for_date,
                'time' => $for_time,
                'day' => $i,
                'week' => date('w', $for_time),
                'current' => $current
            ];
        }

        $result = ['days' => $days];

        // 如果是当前月，计算签到时长
        if ($is_current) {
            $continue_days = 0;     // 连续签到天数
            $chunk = 0;             // 第几次 chunk;
            $chunk_num = 10;        // 每次查 10 条
            $sign = self::where('user_id', $userId)->chunk($chunk_num, function ($signs) use ($totime, &$continue_days, &$chunk, $chunk_num) {
                foreach ($signs as $key => $sign) {
                    $pre_time = $totime - (86400 * ($key + ($chunk * $chunk_num)));
                    $pre_date = date('Y-m-d', $pre_time);
                    if ($sign->date == $pre_date) {
                        $continue_days++;
                    } else {
                        return false;
                    }
                }
                $chunk ++;
            }, 'date', 'desc');     // 如果 date 重复，有坑 (date < 2020-03-28)

            $result['cuntinue_days'] = $continue_days;
        }

        return $result;
    }


    // 添加浏览记录
    public static function sign($userId,$month = '') {

        $sign = self::where('user_id', $userId)->where('date', date('Y-m-d'))->find();

        if ($sign) {
            return false;
        }

        // 当前时间戳，避免程序执行中间，刚好跨天
        $time = time();

        // 获取积分规则
        $config = \app\common\model\app\Config::getConfig('sign');

        if($config['status'] !=1){
            return false;
        }

        $basic_score = $config['basic_score'];
        $continuity_score = $config['continuity_score'];
        $continuity_days = $config['continuity_days'];

        // 查询签到记录，判断连续签到天数 只需要倒叙查询 $continuity_days 条记录
        $signs = self::where('user_id', $userId)->order('date', 'desc')->limit($continuity_days)->select();

        $continue_days = 1;
        foreach ($signs as $key => $sign) {
            $pre_time = $time - (86400 * ($key + 1));
            $pre_date = date('Y-m-d', $pre_time);
            if ($sign->date == $pre_date) {
                $continue_days ++;
            } else {
                break;
            }
        }

        // 连续签到天数超出最大连续天数，按照最大连续天数计算
        $continue_effec_days = (($continue_days - 1) > $continuity_days) ? $continuity_days : ($continue_days - 1);

        // 计算今天应得积分  连续签到两天，第二天所得积分为 $basic_score + ((2 - 1) * $continuity_score)
        $score = $basic_score;
        $until_add = $continue_effec_days * $continuity_score;       // 连续签到累加必须大于 0 ，小于 0 舍弃
        if ($until_add > 0) {    // 避免 continuity_days 填写小于 等于 0
            $score += $until_add;
        }

        $sign = Db::transaction(function () use ($userId, $time, $score) {
            // 插入签到记录
            $sign = self::create([
                'uniacid'=>UNIACID,
                'user_id' => $userId,
                'date' => date('Y-m-d', $time),
                'score' => $score >= 0 ? $score : 0
            ]);

            // 赠送积分
            if ($score > 0) {
                User::score($score,$userId,'签到奖励');
            }

            return $sign;
        });

        return $sign;
    }
}