/**
    * ─────────────────────────────────────────────────────────────────────────────────────────────────┐
    * This Batch class is use for handle Shopify's Custom / Smart Collection and Collects.   
    * Trigger on Smart Collection's collects create or update.
    * Shopify API Documentation: https://shopify.dev/docs/admin-api/rest/reference
    * Create Shopify Store: https://www.shopify.com/signup?itcat=identity&itterm=create-new-store
    * Shopify API Release 2020: https://www.shopify.in/partners/blog/shopify-api-release-january-2020
    * What is Person Account in Salesforce ? https://help.salesforce.com/articleView?id=account_person.htm&type=5
    * ──────────────────────────────────────────────────────────────────────────────────────────────────
    * @author         Sumit    <sumit@hicShopify.com>
    * ────────────────────────────────────────────────────────────────────────────────────────────────── 
    */
global with sharing class fetchCollectsForWebhooks implements Database.Batchable<string>,Database.AllowsCallouts,database.stateful {
    
    global string collectionId{get;set;}
    global list<string> listOfCollectionId;
    String linkForNextPage = '';
    Boolean isEnd = false;
    String JSONResponse = '';
    String store = 'Default';  


    List<HIC_ShopifySync__HIC_Field_Mapping__c> collectionFieldsList;
    public List<HIC_ShopifySync__HIC_Configuration__c > configurationList = new List<HIC_ShopifySync__HIC_Configuration__c >();
    Boolean dontRun = false; 
    
    global fetchCollectsForWebhooks(list<string> listOfCollectionId,String store){
        this.listOfCollectionId = listOfCollectionId;  
        //dontRun = true;      
        this.store = store;
    }
    global fetchCollectsForWebhooks(list<string> listOfCollectionId,String store, Boolean isWebhook){
        this.listOfCollectionId = listOfCollectionId;  
        dontRun = true;      
        this.store = store;
    }
    global fetchCollectsForWebhooks(String linkForNextPage , Boolean isEnd, String store){
        this.linkForNextPage = linkForNextPage;
        this.isEnd = isEnd;
        this.store = store;
    }

    //Deprecated
    global fetchCollectsForWebhooks(String linkForNextPage , Boolean isEnd){
        this.linkForNextPage = linkForNextPage;
        this.isEnd = isEnd;
    } 
    //Deprecated
    global fetchCollectsForWebhooks(list<string> listOfCollectionId){
        this.listOfCollectionId = listOfCollectionId;  
        dontRun = true;      
    }

    global Iterable<string> start(Database.BatchableContext bc){ 
            if(listOfCollectionId != null && !listOfCollectionId.isEmpty()) {
                list<HIC_ShopifySync__Collect__c> listtodeletecollects = new list<HIC_ShopifySync__Collect__c>();


                    listtodeletecollects = [Select id from HIC_ShopifySync__Collect__c where HIC_ShopifySync__Collection__r.HIC_ShopifySync__Shopify_Id__c IN : listOfCollectionId WITH SECURITY_ENFORCED Limit 49999 ];
                

                try{
                    if(!listtodeletecollects.isEmpty()){
                        if(CheckAccessibility.isDeletable('HIC_ShopifySync__Collect__c'))
                            database.delete (listtodeletecollects,false);
                    }
                }catch(Exception e){
                system.debug('Error: '+e.getMessage());
                }
                return listOfCollectionId;
            }else if(linkForNextPage != ''){
                
                return new list<string> {'linkForNextPage'};
            }else{
                isEnd = true;
                return null;
            }
           
                
           
        
    }   
    
    global void execute(Database.BatchableContext BC, List<string> collectionList){
        if(collectionList.isEmpty() || collectionList == null ){
            isEnd = true;
            return;
        }
        
        if(!collectionList.isEmpty() && collectionList[0] != 'linkForNextPage') collectionId = collectionList[0];
        
        String collectsResponse = '';
        String queryConfiguration = 'Select '+CheckAccessibility.isAccessible('HIC_ShopifySync__Chunk_Size__c,name, HIC_ShopifySync__Default_Field_Mapping__c,HIC_ShopifySync__Shopify_URL__c, HIC_ShopifySync__Specify_Close_Date__c,HIC_ShopifySync__API_Key__c, HIC_ShopifySync__Private_Key_Password__c, HIC_ShopifySync__Opportunity__c, HIC_ShopifySync__Order__c, HIC_ShopifySync__Opportunity_Line_Item__c, HIC_ShopifySync__Order_Line_Item__c, HIC_ShopifySync__Order_Fulfillment__c, HIC_ShopifySync__Person_Account__c ','HIC_ShopifySync__HIC_Configuration__c')+' from HIC_ShopifySync__HIC_Configuration__c where '+CheckAccessibility.isAccessible('name','HIC_ShopifySync__HIC_Configuration__c')  +' '+CheckAccessibility.isAccessible('HIC_ShopifySync__Store__c', 'HHIC_ShopifySync__HIC_Configuration__c')+' = \''+store+'\' LIMIT 49999';
        configurationList = database.query(queryConfiguration);
        
        if(!Test.isRunningTest()){
            if(String.isNotBlank(linkForNextPage) && !isEnd ){
                JSONResponse = HIC_ShopifyUtility.fetchAllDataWithLinkForNextPage('collects.json?limit='+configurationList[0].HIC_ShopifySync__Chunk_Size__c+'&page_info='+linkForNextPage, configurationList);
                linkForNextPage = '';
            }else{
                if(String.isNotBlank(collectionId)){
                    JSONResponse = HIC_ShopifyUtility.fetchAllDataWithLinkForNextPage('/collections/'+collectionId+'/products.json?limit='+configurationList[0].HIC_ShopifySync__Chunk_Size__c,configurationList);
                }
            }
            if(String.isNotBlank(JSONResponse)){
                Map<String,Object> main = (Map<String,Object>) JSON.deserializeUntyped(JSONResponse);
                if(!main.isEmpty() && main.containskey('response') && main.containskey('link') ){
                    if( main.get('response') != null)
                        collectsResponse = String.valueof(main.get('response'));
                    
                    if(main.get('link') != null){
                        linkForNextPage =  String.valueof(main.get('link'));
                    }else{
                        isEnd = true;
                    }
                }else{
                    isEnd = true;
                }
            }else{
                isEnd = true;
            }
        }else{
            collectsResponse = '{ "products": [ { "id": 4772723130544, "title": "Product 1", "body_html": "", "vendor": "madeeasy8", "product_type": "", "created_at": "2020-10-08T17:05:23+05:30", "handle": "product-1", "updated_at": "2020-10-08T17:05:25+05:30", "published_at": "2020-10-08T17:05:24+05:30", "template_suffix": "", "published_scope": "web", "tags": "", "admin_graphql_api_id": "gid://shopify/Product/4772723130544", "options": [ { "id": 6135302783152, "product_id": 4772723130544, "name": "Title", "position": 1 } ], "images": [], "image": null } ] }'  ;  
        }     
        
        System.debug('collectsResponse--> '+collectsResponse);
        
        if(!String.isNotBlank(collectsResponse)) return  ;
        
        
        collectionFieldsList = new list<HIC_ShopifySync__HIC_Field_Mapping__c>();        
        String query = 'Select '+CheckAccessibility.isAccessible('HIC_ShopifySync__SF_Field__c, HIC_ShopifySync__Shopify_Fields__c, HIC_ShopifySync__Nested__c , HIC_ShopifySync__IsSFID__c, HIC_ShopifySync__Default_Value__c ', 'HIC_ShopifySync__HIC_Field_Mapping__c') +' from HIC_ShopifySync__HIC_Field_Mapping__c Where '+CheckAccessibility.isAccessible('HIC_ShopifySync__Object_Name__c','HIC_ShopifySync__HIC_Field_Mapping__c')+' = \'HIC_ShopifySync__Collect__c\' AND '+CheckAccessibility.isAccessible('HIC_ShopifySync__Store__c','HIC_ShopifySync__HIC_Field_Mapping__c')+' = \''+store+'\' LIMIT 49999';
        collectionFieldsList = database.query(query);
        Map<String, Object> meta = (Map<String, Object>) JSON.deserializeUntyped(collectsResponse);     
        if(!meta.isEmpty() && meta.containskey('products') && meta.get('products') != null) {
            List<Object> objectList = (List<Object>) meta.get('products');
            if(!objectList.isEmpty() && objectList != null){
                for(Object pr : objectList){
                    Map<String,Object> prdmap = (Map<String,Object>) pr;
                    if(!prdmap.isEmpty() && prdmap != null){
                        prdmap.put('collection_id',collectionId);
                        prdmap.put('product_id',String.valueOf(prdmap.get('id')));
                        prdmap.put('id',String.valueOf(prdmap.get('id')+collectionId));
                    }
                }
                if(!Test.isRunningTest()){
                    HIC_ShopifyUtility.processSobjectList(collectionFieldsList,objectList,'HIC_ShopifySync__Collect__c','HIC_ShopifySync__Shopify_Id__c',configurationList,dontRun,store);
                }
            } 
        }  
    }
    
    global void finish(Database.BatchableContext BC){
        List <HIC_ShopifySync__HIC_Configuration__c> configListToCheckObjects = new List <HIC_ShopifySync__HIC_Configuration__c>();
        String query = 'Select '+CheckAccessibility.isAccessible('id, HIC_ShopifySync__Draft_Order_Sync__c, HIC_ShopifySync__Default_Field_Mapping__c, HIC_ShopifySync__Collection_Sync__c,HIC_ShopifySync__IsCurrencyChanged__c,HIC_ShopifySync__Batch_Is_Processing__c,HIC_ShopifySync__Shopify_URL__c, HIC_ShopifySync__Specify_Close_Date__c,HIC_ShopifySync__API_Key__c, HIC_ShopifySync__Private_Key_Password__c, HIC_ShopifySync__Inventory_Location__c, HIC_ShopifySync__Enable_Draft_Order__c, name, HIC_ShopifySync__Opportunity__c, HIC_ShopifySync__Order__c, HIC_ShopifySync__Opportunity_Line_Item__c, HIC_ShopifySync__Order_Line_Item__c, HIC_ShopifySync__Order_Fulfillment__c, HIC_ShopifySync__Person_Account__c','HIC_ShopifySync__HIC_Configuration__c')+' from HIC_ShopifySync__HIC_Configuration__c Where '+CheckAccessibility.isAccessible('HIC_ShopifySync__Store__c', 'HIC_ShopifySync__HIC_Configuration__c')+' = \''+store+'\' LIMIT 49999';
        configListToCheckObjects = database.query(query) ;
        if(!isEnd){
            if(!Test.isRunningTest()){
                if(String.isNotBlank(linkForNextPage)){
                    fetchCollectsForWebhooks callBatchAgain = new fetchCollectsForWebhooks(linkForNextPage,false,store);
                    Database.executeBatch(callBatchAgain,1);
                }
                
            }
        }
    }
}