public with sharing class InquiryPredictsDateChangeHandler extends Oly_TriggerHandler{

    private List<InquiryPredictsDateChange__c> oldList;
    private List<InquiryPredictsDateChange__c> newList;
    private Map<Id,InquiryPredictsDateChange__c> oldMap;
    private Map<Id,InquiryPredictsDateChange__c> newMap;

    public InquiryPredictsDateChangeHandler() {
        this.oldList = (List<InquiryPredictsDateChange__c>) Trigger.old;
        this.newList = (List<InquiryPredictsDateChange__c>) Trigger.new;
        this.oldMap = (Map<Id,InquiryPredictsDateChange__c>) Trigger.oldMap;
        this.newMap = (Map<Id,InquiryPredictsDateChange__c>) Trigger.newMap;
    }

    protected override void afterUpdate() {
        addColumn();
    }

    //当审批流程走完时 更新 询价相关字段
    private void addColumn(){

        //DB202309348278 询价页面新增字段需求 流失数 20230927 lt start
        //本财年
        Date monyear;
        Date today = Date.today();
        Integer month = today.month();
        if(month <= 3){
            monyear = Date.newInstance(today.year(), 4, 1);
        }else{
            monyear = Date.newInstance(today.year()+1, 4, 1);
        }
        System.debug('test20230927---monyear:'+monyear);
        //DB202309348278 询价页面新增字段需求 流失数 20230927 lt end

        List<Opportunity> oppList = new List<Opportunity>();
        Map<Id,Opportunity> oppMap = new Map<Id,Opportunity>();
        List<Id> oppIdList = new List<Id>();

        for (InquiryPredictsDateChange__c ipd :newList ) {
            //判断更新前后的状态是否不同 若不同,则判断更新后的状态是否为'已批准'
            if ((ipd.Predicted_Date_Status__c != oldMap.get(ipd.Id).Predicted_Date_Status__c) && ipd.Predicted_Date_Status__c == '已批准' ) {
                String oppId = ipd.Opportunity__c  ;
                Opportunity opp = new Opportunity();

                opp.Id = oppId;
                // opp.Close_Forecasted_Assume_Date__c = ipd.Close_Forecasted_Assume_Date__c; //担当日
                opp.Close_Forecasted_Date__c        = ipd.Close_Forecasted_Date__c;        //KPI日
                opp.CloseDate                       = ipd.CloseDate__c;                    //结束日期/预测发货日
                opp.Date_InAdvance_Delay__c         = ipd.Date_InAdvance_Delay__c;         //日期提前/延后
                opp.Predicted_date_ChangeReason__c  = ipd.Predicted_date_ChangeReason__c;  //改变预测日期原因
                // opp.Opp_New_Mark__c                 = ipd.Opp_New_Mark__c;                 //询价新建标记
                opp.Opp_Delay_Mark__c               = ipd.Opp_Delay_Mark__c;               //询价延后标价
                opp.ForecastApprovalTime__c         = Datetime.now();
                
                //DB202309348278 询价页面新增字段需求 流失数 20230927 lt start
                //流失数：预测订货日修改到本期后。
                System.debug('test20230927---opp.Close_Forecasted_Date__c:'+opp.Close_Forecasted_Date__c);
                if(opp.Close_Forecasted_Date__c  >= monyear){
                    opp.LostCntNum__c = 1;
                }else{
                    opp.LostCntNum__c = 0;
                }
                //DB202309348278 询价页面新增字段需求 流失数 20230927 lt end

                oppList.add(opp);

            }
        }

        if (oppList.size() > 0) {
            System.debug('lt123oppList'+oppList);
            update oppList;
        }
    }

}