package com.sw.dualscreen

class Test {

    private var lastWeight = 0
//    private var currentWeight = 0

    data class WeightRecord(
        var eatWeight: Int = 0,
        var deviceWeight: Int = 0,
        var lastWeight: Int = 0,
        var state: Boolean = false
    )

    private val weightRecord by lazy { WeightRecord() }

    fun main() {
        readWeight { weight ->
            if (weightRecord.state) {
                //数据已记录
                return@readWeight
            }
            if (weight == 0 || lastWeight == 0) {
                return@readWeight
            }
            if (weight < lastWeight) {
                weightRecord.let {
                    it.deviceWeight = weight
                    it.eatWeight = it.deviceWeight - it.lastWeight
                    it.state = true
                }
            }
            lastWeight = weight
        }
    }

    fun readWeight(block: (Int) -> Unit) {

    }


}