package com.iailab.module.model.mcs.pre.enums;

import lombok.AllArgsConstructor;
import lombok.Getter;

import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.function.Function;

/**
 * 自动调整 调整值计算规则
 */
@Getter
@AllArgsConstructor
public enum AutoAdjustValueRuleEnum {

    // 均值差
    AVERAGE_GAP_VALUE("average_gap_value",(map) -> {
        if (!map.containsKey("startValue") || !map.containsKey("endValue")) {
            return 0.0;
        }
        Double startValue = Double.valueOf(map.get("startValue").toString());
        Double endValue = Double.valueOf(map.get("endValue").toString());
        return endValue - startValue;
    });


    private final String code;
    private final Function<HashMap<String,Object>, Double> calculator;

    public Double calculate(HashMap<String,Object> map) {
        return calculator.apply(map);
    }

    public static AutoAdjustValueRuleEnum fromCode(String code) {
        for (AutoAdjustValueRuleEnum unit : values()) {
            if (unit.code.equals(code)) {
                return unit;
            }
        }
        return null;
    }

    public static Double getAdjustValue(String code,HashMap<String,Object> map) {

        AutoAdjustValueRuleEnum rule = AutoAdjustValueRuleEnum.fromCode(code);

        if (rule == null) {
            return 0.0;
        }
        return rule.calculate(map);
    }
}