<?php

namespace app\common\model;

class Pass extends BaseModel
{
    public static $unit = [1 => '>', 2 => '<', 3 => '=', 4 => '≥', 5 => '<=', 6 => '!='];

    /**
     * 馆舍客流情况-拥挤程度
     * @param $proportion   // 比例
     * @return string
     */
    public static function getPassType($proportion)
    {
        # 舒适：阈值＜80%
        if ($proportion < 0.8) {
            return '舒适';
        }
        # 饱和：80%＜阈值＜100%
        if (0.8 < $proportion || $proportion < 1) {
            return '饱和';
        }
        # 拥挤：阈值=100%
        if ($proportion == 1) {
            return '拥挤';
        }
        # 拥挤：阈值=100%
        if ($proportion >= 1.2) {
            return '爆满';
        }
        return '';
    }
}