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public without sharing class UserAfter {
    public UserAfter() {
        
    }
    //刷新公用小组
    //1.先从系统中查出所有可能更新的小组成员
    //2.统计更新后所有需要新增的小组成员。系统中已存在则不新增
    //3.统计更新前用户所添加的小组,如果存在更新后用户不需要的小组,则删除
    public static void ETENGBatch(List<User> newList,Map<Id,User> newMap,List<User> oldList,Map<Id,User> oldMap){
        //小组列表
        List<Group> glist = [SELECT id,Name from  Group where Name like 'ET%' OR Name like 'ENG%' OR Name='a5:全国询价助理'];
        //新增小组成员列表
        Set<GroupMember> gmlist = new Set<GroupMember>();
        //所有新用户Id
        Set<String> uId = new Set<String>();
        //系统中已有小组成员列表
        List<GroupMember> oldGmList = new List<GroupMember>();
        //小组Map
        Map<String,String> gMap = new Map<String,String>();
        //系统中已有小组成员Map
        Map<String,String> oldGmMap = new Map<String,String>();
        //需要删除的小组成员
        Set<GroupMember> delGmList = new Set<GroupMember>();
        for(Group g:glist){
            if(String.isNotBlank(g.Name)){
                gMap.put(g.Name,g.Id);
            }
        }
        System.debug('获取到小组:'+gMap);
 
        for(User user : newList) {
            uId.add(user.Id);
        }
        //目前有可能进行新增/删除的所有小组成员
        oldGmList = [Select Id,groupid,userOrGroupId From GroupMember where userOrGroupId in :uId];
        for(GroupMember gm:oldGmList){
            //key   = 小组ID+'_'+用户ID
            //value = 小组成员ID
            oldGmMap.put(gm.groupid+'_'+gm.userOrGroupId,gm.Id);
        }
        Map<String,GroupMember> newGmMap=new Map<String,GroupMember>();
        for(User user : newList) {
            System.debug('新增ET/ENG专员权限配置:');
            System.debug('当前用户ID:'+user.Id);
            System.debug('当前用户SFDC职种:'+user.SFDCPosition_C__c);
            System.debug('当前用户负责产品:'+user.Product_specialist_incharge_product__c);
            System.debug('当前用户工作地:'+user.Work_Location__c);
 
 
            // //测试中!
            // if(user.Id!='0056D000006hptLQAQ'){
                // break;
            // }
            User oldUser=null;
            if(oldMap!=null){
                oldUser=oldMap.get(user.Id);
            }
            if(oldUser!=null){
                System.debug('原用户ID:'+oldUser.Id);
                System.debug('原用户SFDC职种:'+oldUser.SFDCPosition_C__c);
                System.debug('原用户负责产品:'+oldUser.Product_specialist_incharge_product__c);
                System.debug('原用户工作地:'+oldUser.Work_Location__c);
            }
 
            //SFDC职种,负责产品,工作地,启用。都没有变更,则跳过。
            // if(oldUser!=null&&user.SFDCPosition_C__c==oldUser.SFDCPosition_C__c
            //     &&user.Product_specialist_incharge_product__c==oldUser.Product_specialist_incharge_product__c
            //     &&user.Work_Location__c==oldUser.Work_Location__c
            //     &&user.IsActive==oldUser.IsActive){
            //     System.debug('无相关内容修改,跳过!');
            //     continue;
            // }
            //当前用户启用,则可能需要新增小组成员
            if(user.IsActive==true){
                System.debug('开始更新:');
                //担当权限(SFDC职种=推广、负责产品(主)、工作地),当前用户以及CL6,CL5,CL4,CL3:ET--->ET小组,ENG--->ENG小组,ET/ENG:ET小组\ENG小组
                if(user.SFDCPosition_C__c=='销售推广'&&!String.isBlank(user.Product_specialist_incharge_product__c)&&!String.isBlank(user.Work_Location__c)){
                    System.debug('进入1:');
                    //当前用户
                    String groupName='';
                    String groupName2='';
                    if(user.Product_specialist_incharge_product__c=='ET'){
                        groupName='ET'+user.Work_Location__c;
                    }else if(user.Product_specialist_incharge_product__c=='ENG'){
                        groupName='ENG'+user.Work_Location__c;
                    }else if(user.Product_specialist_incharge_product__c=='ET/ENG'){
                        groupName='ET'+user.Work_Location__c;
                        groupName2='ENG'+user.Work_Location__c;
                    }
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = user.Id;
                        //对比系统中是否已存在小组成员,已存在则不需要新增
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        newGmMap.put(oldGmKey,mb);
                        if (!oldGmMap.containsKey(oldGmKey)) {
                            gmlist.add(mb);
                            System.debug('获取到小组1:'+gMap.get(groupName));
                        }
                        
                    }
 
                    if(String.isNotBlank(groupName2)&&gMap.containsKey(groupName2)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName2);
                        mb.userOrGroupId = user.Id;
                        //对比系统中是否已存在小组成员,已存在则不需要新增
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        newGmMap.put(oldGmKey,mb);
                        if (!oldGmMap.containsKey(oldGmKey)) {
                            gmlist.add(mb);
                            System.debug('获取到小组11:'+gMap.get(groupName2));
                        }
                    }
                }else if(user.SFDCPosition_C__c=='营业助理'&&!String.isBlank(user.Product_specialist_incharge_product__c)&&!String.isBlank(user.Work_Location__c)){
                    
                    System.debug('进入2:');
                    String groupName='';
                    String groupName2='';
                    if(user.Product_specialist_incharge_product__c=='GI'||user.Product_specialist_incharge_product__c=='ET'){
                        groupName='ET'+user.Work_Location__c;
                    }else if(user.Product_specialist_incharge_product__c=='SP'||user.Product_specialist_incharge_product__c=='ENG'){
                        groupName='ENG'+user.Work_Location__c;
                    }else if(user.Product_specialist_incharge_product__c=='ET/ENG'||user.Product_specialist_incharge_product__c=='ALL'){
                        groupName='ET'+user.Work_Location__c;
                        groupName2='ENG'+user.Work_Location__c;
                    }
                    System.debug('匹对小组:'+groupName);
                    System.debug('匹对小组:'+gMap.get(groupName));
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = user.Id;
                        //对比系统中是否已存在小组成员,已存在则不需要新增
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        newGmMap.put(oldGmKey,mb);
                        if (!oldGmMap.containsKey(oldGmKey)) {
                            gmlist.add(mb);
                            System.debug('获取到小组6:'+gMap.get(groupName));
                        }
                    }
                    if(String.isNotBlank(groupName2)&&gMap.containsKey(groupName2)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName2);
                        mb.userOrGroupId = user.Id;
                        //对比系统中是否已存在小组成员,已存在则不需要新增
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        newGmMap.put(oldGmKey,mb);
                        if (!oldGmMap.containsKey(oldGmKey)) {
                            gmlist.add(mb);
                            System.debug('获取到小组66:'+gMap.get(groupName2));
                        }
                    }
                }
 
 
 
                if(user.SFDCPosition_C__c=='营业助理'){
                    System.debug('进入3:');
                    String groupName='a5:全国询价助理';
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = user.Id;
                        //对比系统中是否已存在小组成员,已存在则不需要新增
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        newGmMap.put(oldGmKey,mb);
                        if (!oldGmMap.containsKey(oldGmKey)) {
                            gmlist.add(mb);
                            System.debug('获取到小组7:'+gMap.get(groupName));
                        }
                    }
                }else if(oldUser!=null&&oldUser.SFDCPosition_C__c=='营业助理'){
                    //是否需要删除
                    String groupName='a5:全国询价助理';
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = user.Id;
                        //对比系统中是否已存在小组成员,存在则去需要删除
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        if (oldGmMap.containsKey(oldGmKey)) {
                            mb.Id=oldGmMap.get(oldGmKey);
                            delGmList.add(mb);
                            System.debug('删除小组成员3:'+mb);
                        }
                    }
                }
 
 
                System.debug('筛选删除小组:');
                //检查更新后是否需要删除原小组
                if(oldUser!=null){
                    //担当权限(SFDC职种=推广、负责产品(主)、工作地),当前用户以及CL6,CL5,CL4,CL3:ET--->ET小组,ENG--->ENG小组,ET/ENG:ET小组\ENG小组
                    if(oldUser.SFDCPosition_C__c=='销售推广'&&!String.isBlank(oldUser.Product_specialist_incharge_product__c)&&!String.isBlank(oldUser.Work_Location__c)){
                        System.debug('进入1:');
                        //当前用户
                        String groupName='';
                        String groupName2='';
                        if(oldUser.Product_specialist_incharge_product__c=='ET'){
                            groupName='ET'+oldUser.Work_Location__c;
                        }else if(oldUser.Product_specialist_incharge_product__c=='ENG'){
                            groupName='ENG'+oldUser.Work_Location__c;
                        }else if(oldUser.Product_specialist_incharge_product__c=='ET/ENG'){
                            groupName='ET'+oldUser.Work_Location__c;
                            groupName2='ENG'+oldUser.Work_Location__c;
                        }
                        if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                            GroupMember mb = new GroupMember();
                            mb.groupid =  gMap.get(groupName);
                            mb.userOrGroupId = oldUser.Id;
                            //系统中已存在小组成员,并且在更新后,也不需要这个小组成员,就删除
                            String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                            if (oldGmMap.containsKey(oldGmKey)&&!newGmMap.containsKey(oldGmKey)) {
                                mb.Id=oldGmMap.get(oldGmKey);
                                delGmList.add(mb);
                                System.debug('获取到小组1:'+gMap.get(groupName));
                            }
                        }
                        
                        if(String.isNotBlank(groupName2)&&gMap.containsKey(groupName2)){
                            GroupMember mb = new GroupMember();
                            mb.groupid =  gMap.get(groupName2);
                            mb.userOrGroupId = user.Id;
                            //系统中已存在小组成员,并且在更新后,也不需要这个小组成员,就删除
                            String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                            if (oldGmMap.containsKey(oldGmKey)&&!newGmMap.containsKey(oldGmKey)) {
                                mb.Id=oldGmMap.get(oldGmKey);
                                delGmList.add(mb);
                                System.debug('获取到小组11:'+gMap.get(groupName2));
                            }
                        }
                    }else if(oldUser.SFDCPosition_C__c=='营业助理'&&!String.isBlank(oldUser.Product_specialist_incharge_product__c)&&!String.isBlank(oldUser.Work_Location__c)){
                        
                        System.debug('进入2:');
                        String groupName='';
                        String groupName2='';
                        if(oldUser.Product_specialist_incharge_product__c=='GI'||oldUser.Product_specialist_incharge_product__c=='ET'){
                            groupName='ET'+oldUser.Work_Location__c;
                        }else if(oldUser.Product_specialist_incharge_product__c=='SP'||oldUser.Product_specialist_incharge_product__c=='ENG'){
                            groupName='ENG'+oldUser.Work_Location__c;
                        }else if(oldUser.Product_specialist_incharge_product__c=='ET/ENG'||oldUser.Product_specialist_incharge_product__c=='ALL'){
                            groupName='ET'+oldUser.Work_Location__c;
                            groupName2='ENG'+oldUser.Work_Location__c;
                        }
                        System.debug('匹对小组:'+groupName);
                        System.debug('匹对小组:'+gMap.get(groupName));
                        if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                            GroupMember mb = new GroupMember();
                            mb.groupid =  gMap.get(groupName);
                            mb.userOrGroupId = oldUser.Id;
                            //系统中已存在小组成员,并且在更新后,也不需要这个小组成员,就删除
                            String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                            if (oldGmMap.containsKey(oldGmKey)&&!newGmMap.containsKey(oldGmKey)) {
                                mb.Id=oldGmMap.get(oldGmKey);
                                delGmList.add(mb);
                                System.debug('获取到小组6:'+gMap.get(groupName));
                            }
                        }
                        if(String.isNotBlank(groupName2)&&gMap.containsKey(groupName2)){
                            GroupMember mb = new GroupMember();
                            mb.groupid =  gMap.get(groupName2);
                            mb.userOrGroupId = oldUser.Id;
                            //系统中已存在小组成员,并且在更新后,也不需要这个小组成员,就删除
                            String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                            if (oldGmMap.containsKey(oldGmKey)&&!newGmMap.containsKey(oldGmKey)) {
                                mb.Id=oldGmMap.get(oldGmKey);
                                delGmList.add(mb);
                                System.debug('获取到小组66:'+gMap.get(groupName2));
                            }
                        }
                    }
                }
            }else if(oldUser!=null&&oldUser.IsActive==true){
                System.debug('更新后用户未启用(匹配更新前用户的小组,进行删除):');
                if(oldUser.SFDCPosition_C__c=='销售推广'&&!String.isBlank(oldUser.Product_specialist_incharge_product__c)&&!String.isBlank(oldUser.Work_Location__c)){
                    System.debug('进入1:');
                    //当前用户
                    String groupName='';
                    String groupName2='';
                    if(oldUser.Product_specialist_incharge_product__c=='ET'){
                        groupName='ET'+oldUser.Work_Location__c;
                    }else if(oldUser.Product_specialist_incharge_product__c=='ENG'){
                        groupName='ENG'+oldUser.Work_Location__c;
                    }else if(oldUser.Product_specialist_incharge_product__c=='ET/ENG'){
                        groupName='ET'+oldUser.Work_Location__c;
                        groupName2='ENG'+oldUser.Work_Location__c;
                    }
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
 
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = oldUser.Id;
                        //对比系统中是否已存在小组成员,已存在则需要删除
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        if (oldGmMap.containsKey(oldGmKey)) {
                            mb.Id=oldGmMap.get(oldGmKey);
                            delGmList.add(mb);
                            System.debug('获取到小组1:'+gMap.get(groupName));
                        }
                        
                    }
                    if(String.isNotBlank(groupName2)&&gMap.containsKey(groupName2)){
 
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName2);
                        mb.userOrGroupId = oldUser.Id;
                        //对比系统中是否已存在小组成员,已存在则需要删除
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        if (oldGmMap.containsKey(oldGmKey)) {
                            mb.Id=oldGmMap.get(oldGmKey);
                            delGmList.add(mb);
                            System.debug('获取到小组11:'+gMap.get(groupName));
                        }
                    }
                }else if(oldUser.SFDCPosition_C__c=='营业助理'&&!String.isBlank(oldUser.Product_specialist_incharge_product__c)&&!String.isBlank(oldUser.Work_Location__c)){
                    
                    System.debug('进入2:');
                    String groupName='';
                    String groupName2='';
                    if(oldUser.Product_specialist_incharge_product__c=='GI'||oldUser.Product_specialist_incharge_product__c=='ET'){
                        groupName='ET'+oldUser.Work_Location__c;
                    }else if(oldUser.Product_specialist_incharge_product__c=='SP'||oldUser.Product_specialist_incharge_product__c=='ENG'){
                        groupName='ENG'+oldUser.Work_Location__c;
                    }else if(oldUser.Product_specialist_incharge_product__c=='ET/ENG'||oldUser.Product_specialist_incharge_product__c=='ALL'){
                        groupName='ET'+oldUser.Work_Location__c;
                        groupName2='ENG'+oldUser.Work_Location__c;
                    }
                    System.debug('匹对小组:'+groupName);
                    System.debug('匹对小组:'+gMap.get(groupName));
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = oldUser.Id;
                        //对比系统中是否已存在小组成员,已存在则需要删除
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        if (oldGmMap.containsKey(oldGmKey)) {
                            mb.Id=oldGmMap.get(oldGmKey);
                            delGmList.add(mb);
                            System.debug('获取到小组6:'+gMap.get(groupName));
                        }
                    }
                    if(String.isNotBlank(groupName2)&&gMap.containsKey(groupName2)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName2);
                        mb.userOrGroupId = oldUser.Id;
                        //对比系统中是否已存在小组成员,已存在则需要删除
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        if (oldGmMap.containsKey(oldGmKey)) {
                            mb.Id=oldGmMap.get(oldGmKey);
                            delGmList.add(mb);
                            System.debug('获取到小组66:'+gMap.get(groupName2));
                        }
                    }
                }
 
                if(oldUser.SFDCPosition_C__c=='营业助理'){
                    System.debug('进入3:');
                    String groupName='a5:全国询价助理';
                    if(String.isNotBlank(groupName)&&gMap.containsKey(groupName)){
                        GroupMember mb = new GroupMember();
                        mb.groupid =  gMap.get(groupName);
                        mb.userOrGroupId = oldUser.Id;
                        //对比系统中是否已存在小组成员,已存在则需要删除
                        String oldGmKey=mb.groupid+'_'+mb.userOrGroupId;
                        if (oldGmMap.containsKey(oldGmKey)) {
                            mb.Id=oldGmMap.get(oldGmKey);
                            delGmList.add(mb);
                            System.debug('获取到小组7:'+gMap.get(groupName));
                        }
                    }
                }
                System.debug('用户未启用,删除小组:'+delGmList);
            }
        }
 
 
        System.debug('更新结束:'+gmlist);
        if(gmlist.size()>0){
            List<GroupMember> newGmList=new List<GroupMember>();
            for(GroupMember g:gmlist){
                newGmList.add(g);
            }
 
            insert newGmList;
            
        }
        if(delGmList.size()>0){
            List<GroupMember> delGmL=new List<GroupMember>();
             for(GroupMember g:delGmList){
                delGmL.add(g);
            }
            delete delGmL;
        }
        System.debug('最终确认新增的小组成员:'+gmlist);
        System.debug('最终确认删除的小组成员:'+delGmList);
    }
 
    
}