public without sharing class Product2TriggerHandler {

    public static void upsertProductSearch(List<Product2> newList, Map<Id, Product2> newMap, List<Product2> oldList, Map<Id, Product2> oldMap) 
    {
        if(Trigger.isAfter && (Trigger.isInsert || Trigger.isUpdate))
        {
            List<String> p2ids = new List<String>();
            for(Product2 p2 : newList)
            {
                p2ids.add(p2.id);
            }
            
            List<Product_Search__c> ps = [select Id,Name,CurrencyIsoCode,Product__c From Product_Search__c Where Product__c in: p2ids];
            Map <String,Product_Search__c> psmap = new Map<String,Product_Search__c>();
            List<Product_Search__c> pss = new List<Product_Search__c>();
            for(Product_Search__c p : ps)
            {
                psmap.put(p.Product__c,p);
            }
            
            for(Product2 p2 : newList)
            {
                Product_Search__c p2s;
                if(psmap.containsKey(p2.id))
                {
                    p2s = psmap.get(p2.id);
                }
                else
                {
                    p2s = new Product_Search__c();
                }
                
                p2s.Name =  p2.Name;
                p2s.Product__c = p2.id;
                p2s.CurrencyIsoCode = p2.CurrencyIsoCode;
                pss.add(p2s);
            }
            System.debug('psssize' + pss.size());
            upsert(pss);  
        }else if(Trigger.isDelete)
       {
           for(Product2 en : newList)
           {
                 en.addError('此数据不能删除');
           }
       }
    }

    public static void checkProduct2Level(List<Product2> newList, Map<Id, Product2> newMap, List<Product2> oldList, Map<Id, Product2> oldMap) {
        List<String> p2ids = new List<String>();
        for(Product2 p2 : newList)
        {
            p2ids.add(p2.id);
        }

        //存放查找的soql文
        List<Product_Register_Link__c> pro2List = new List<Product_Register_Link__c>();
        pro2List = [select Product2__r.id,Product2__r.demoteer_Sap__c,Product2__r.Diedatvanink__c,Product_Register__r.Stelsedag__c,Product_Register__r.MedPrdClass__c,Product_Register__r.ValidTo__c,Product_Register__r.ValidFrom__c 
        from Product_Register_Link__c 
        where Product2__r.Id in : p2ids];
        System.debug('pro2List='+pro2List);
        //存放产品的id和等级类别字段的值的集合
        Map<Id,List<String>> pro2Map = new Map<Id,List<String>>();
        //存放注册证上最前的维护日,一类证优先,否则二类证。
        Map<Id,Date> prSteMap = new Map<Id,Date>();
        Map<Id,Date> prSte1Map = new Map<Id,Date>();
        if (pro2List.size()>0) {
            for (Product_Register_Link__c prl: pro2List) {
                if (pro2Map.containsKey(prl.Product2__r.Id)) {
                    pro2Map.get(prl.Product2__r.Id).add(prl.Product_Register__r.MedPrdClass__c);
                }else {
                    pro2Map.put(prl.Product2__r.Id, new List<String>());
                    pro2Map.get(prl.Product2__r.Id).add(prl.Product_Register__r.MedPrdClass__c);
                }

                if (prl.Product_Register__r.MedPrdClass__c == '1' && prl.Product_Register__r.Stelsedag__c <> null) {
                    if (prSteMap.containsKey(prl.Product2__r.Id)) {
                        if (prSteMap.get(prl.Product2__r.Id) > prl.Product_Register__r.Stelsedag__c) {
                            prSteMap.put(prl.Product2__r.Id,prl.Product_Register__r.Stelsedag__c);
                        }
                    }else {
                        prSteMap.put(prl.Product2__r.Id,prl.Product_Register__r.Stelsedag__c);
                    }
                }

                if ((prl.Product_Register__r.MedPrdClass__c == '2' || prl.Product_Register__r.MedPrdClass__c == '2') && prl.Product_Register__r.Stelsedag__c <> null) {
                    if (prSte1Map.containsKey(prl.Product2__r.Id)) {
                        if (prSte1Map.get(prl.Product2__r.Id) > prl.Product_Register__r.Stelsedag__c) {
                            prSte1Map.put(prl.Product2__r.Id,prl.Product_Register__r.Stelsedag__c);
                        }
                    }else {
                        prSte1Map.put(prl.Product2__r.Id,prl.Product_Register__r.Stelsedag__c);
                    }
                }
            }
        }
        
        //存放产品id和字符串值
        Map<Id,String> prlMap = new Map<Id,String>();
        Map<Id,String> prl1Map = new Map<Id,String>();
        Map<Id,String> prl2Map = new Map<Id,String>();
        System.debug('pro2Map='+pro2Map);
        System.debug('prSteMap='+prSteMap);
        System.debug('prSte1Map='+prSte1Map);
        
        //通过上面的循环，把关系表过获取的数据读出来，传给map
        if (pro2Map.size()>0) {
            for (Product_Register_Link__c pr: pro2List) {
                if (pro2Map.containsKey(pr.Product2__r.Id) && (prSteMap.containsKey(pr.Product2__r.Id) || prSte1Map.containsKey(pr.Product2__r.Id))) {
                    Date stedate = prSteMap.get(pr.Product2__r.Id)==null?prSte1Map.get(pr.Product2__r.Id)==null?null:prSte1Map.get(pr.Product2__r.Id):prSte1Map.get(pr.Product2__r.Id);
                    if (newMap.get(pr.Product2__r.Id).demoteer_Sap__c <> null && pr.Product2__r.Diedatvanink__c <> null) {
                        if (pr.Product_Register__r.Stelsedag__c <> null) {
                            if (pr.Product2__r.Diedatvanink__c <= stedate) {
                               if (newMap.get(pr.Product2__r.Id).demoteer_Sap__c <= pr.Product_Register__r.ValidTo__c && newMap.get(pr.Product2__r.Id).demoteer_Sap__c >= pr.Product_Register__r.ValidFrom__c
                                    && pr.Product_Register__r.MedPrdClass__c == '2' || pr.Product_Register__r.MedPrdClass__c == '3') {
                                    System.debug('2');
                                    if (prlMap.get(pr.Product2__r.Id) == null) {
                                        prlMap.put(pr.Product2__r.Id, '二类');
                                    }else {
                                        String Lins = prlMap.get(pr.Product2__r.Id);
                                        Lins += '二类';
                                        prlMap.put(pr.Product2__r.Id, Lins);
                                    }
                                }else if (newMap.get(pr.Product2__r.Id).demoteer_Sap__c <= pr.Product_Register__r.ValidTo__c && newMap.get(pr.Product2__r.Id).demoteer_Sap__c >= pr.Product_Register__r.ValidFrom__c
                                    && (pr.Product_Register__r.MedPrdClass__c == '1')) {
                                    System.debug('1');
                                        if (prlMap.get(pr.Product2__r.Id) == null) {
                                            prlMap.put(pr.Product2__r.Id, '一类');
                                        }else {
                                            String Lins = prlMap.get(pr.Product2__r.Id);
                                            Lins += '一类';
                                            prlMap.put(pr.Product2__r.Id, Lins);
                                        }
                                }else {
                                    System.debug('非');
                                    if (prlMap.get(pr.Product2__r.Id) == null) {
                                        prlMap.put(pr.Product2__r.Id, '非监管');
                                    }else {
                                        String Lins = prlMap.get(pr.Product2__r.Id);
                                        Lins += '非监管';
                                        prlMap.put(pr.Product2__r.Id, Lins);
                                    }
                                }
                            }else if (pr.Product2__r.Diedatvanink__c > stedate) {
                                if (newMap.get(pr.Product2__r.Id).demoteer_Sap__c <= pr.Product_Register__r.ValidTo__c && newMap.get(pr.Product2__r.Id).demoteer_Sap__c >= pr.Product_Register__r.ValidFrom__c
                                    && pr.Product_Register__r.MedPrdClass__c == '1') {
                                    if (prl1Map.get(pr.Product2__r.Id) == null) {
                                        prl1Map.put(pr.Product2__r.Id, '一类');
                                    }else {
                                        String Lins = prl1Map.get(pr.Product2__r.Id);
                                        Lins += '一类';
                                        prl1Map.put(pr.Product2__r.Id, Lins);
                                    }
                                }else if (newMap.get(pr.Product2__r.Id).demoteer_Sap__c <= pr.Product_Register__r.ValidTo__c && newMap.get(pr.Product2__r.Id).demoteer_Sap__c >= pr.Product_Register__r.ValidFrom__c
                                    && pr.Product_Register__r.MedPrdClass__c == '2' || pr.Product_Register__r.MedPrdClass__c == '3') {
                                    if (prl1Map.get(pr.Product2__r.Id) == null) {
                                        prl1Map.put(pr.Product2__r.Id, '二类');
                                    }else {
                                        String Lins = prl1Map.get(pr.Product2__r.Id);
                                        Lins += '二类';
                                        prl1Map.put(pr.Product2__r.Id, Lins);
                                    }
                                }else {
                                    if (prlMap.get(pr.Product2__r.Id) == null) {
                                        prlMap.put(pr.Product2__r.Id, '非监管');
                                    }else {
                                        String Lins = prlMap.get(pr.Product2__r.Id);
                                        Lins += '非监管';
                                        prlMap.put(pr.Product2__r.Id, Lins);
                                    }
                                }
                            }
                        }else {
                            prl2Map.put(pr.Product2__r.Id, '空');
                        }
                    }
                }
            }
        }
                System.debug('prlMap='+prlMap);
                System.debug('prl1Map='+prl1Map);

        //给产品上的等级类别字段赋值
        for (Product2 pr2: newList) {
            if (prlMap.containsKey(pr2.Id)) {
                if ((prlMap.get(pr2.Id).contains('二类') && prlMap.get(pr2.Id).contains('一类')) || 
                    (!prlMap.get(pr2.Id).contains('一类') && prlMap.get(pr2.Id).contains('二类'))){
                    pr2.Level_Category__c = '二类';
                }else if (prlMap.get(pr2.Id).contains('一类') && !prlMap.get(pr2.Id).contains('二类')) {
                    pr2.Level_Category__c = '一类';
                }else if (prlMap.get(pr2.Id).contains('非监管') && !prl2Map.containsKey(pr2.Id)) {
                    pr2.Level_Category__c = '非监管';
                }else {
                    pr2.Level_Category__c = null;
                }
            }
            if (prl1Map.containsKey(pr2.Id)) {
                if (prl1Map.get(pr2.Id).contains('一类')) {
                    pr2.Level_Category__c = '一类';
                }else if (prl1Map.get(pr2.Id).contains('二类') && !prl1Map.get(pr2.Id).contains('一类')) {
                    pr2.Level_Category__c = '二类';
                }else if (prl1Map.get(pr2.Id).contains('非监管') && !prl2Map.containsKey(pr2.Id)) {
                    pr2.Level_Category__c = '非监管';
                }else {
                    pr2.Level_Category__c = null;
                }
            }
            if (pr2.demoteer_Sap__c == null || pr2.Diedatvanink__c == null) {
                pr2.Level_Category__c = null;
            }
            System.debug('pr2.Level_Category__c='+pr2.Level_Category__c);
        }    
    }
}