/********* Trigger ********/
trigger CandidateTrigger on Candidate__c(after insert) {
	if(trigger.isAfter && trigger.isInsert) {
		CandidateTrigger.afterInsertProcess(trigger.new);
	}
}

/************ Trigger Handler ************/
public class CandidateTriggerHandler {
	
	public CandidateTriggerHandler() {
		//Do-Initialization if needed
	}
	
	public static void afterInsertProcess(List<Candidate__c> newCandidateList) {
		List<Task> newTaskList = new List<Task>();
		List<Contact> newContactList = new List<Contact>();
		Map<Id, Account> canIdsVsBrokerageAccMap = new Map<Id, Account>();
		Map<Id, Account> canIdsVsMngBrokerageAccMap = new Map<Id, Account>();
		if(!newCandidateList.isEmpty()) {
			//First account (Point-1)
			for(Candidate__c objCand: newCandidateList) {
				if(objCand.Brokerage__c != null) {
					canIdsVsBrokerageAccMap.put(objCand.Id, getAccounts(objCand, null, objCand.Brokerage__c));
				}
			}
			//Insert 1st account list
			if(!canIdsVsBrokerageAccMap.isEmpty()) {
				insert canIdsVsBrokerageAccMap.values(); //list of 1st accounts
			}
			
			//Second Account (Point-2)
			for(Candidate__c objCand: newCandidateList) {
				if(objCand.Brokerage__c != null && objCand.Manage_Brokerage__c != null) {
					canIdsVsMngBrokerageAccMap.put(objCand.Id, getAccounts(objCand, canIdsVsBrokerageAccMap.get(objCand.Id).Id, objCand.Manage_Brokerage__c));
				}
				else {
					//Not added Candidates for Account.
				}
			}
			//Insert 2nd account list
			if(!canIdsVsMngBrokerageAccMap.isEmpty()) {
				insert canIdsVsMngBrokerageAccMap.values(); //list of 2nd accounts
				
				//Create contacts for all 2nd Accounts (Point-3)
				for(Id candId : canIdsVsMngBrokerageAccMap.keySet()) {
					newContactList.add(getContacts(candId, canIdsVsMngBrokerageAccMap.get(candId)));
				}
				if(!newContactList.isEmpty()){
					insert newContactList;
					
					//Create Task (Point-4)
					for(Contact objContact : newContactList) {
						newTaskList.add(getTasks(objContact));
					}
					if(!newTaskList.isEmpty()) {
						insert newTaskList;
					}
				}
			}
		}
	}
	
	//Create Account
	private static Account getAccounts(Candidate__c objCand, Id parentAccId, String strBrokerageOrManage) {
		Account objAccount = new Account();
		objAccount.Name = objCand.First_Name__c + ' ' + objCand.Last_Name__c + ' ' + strBrokerageOrManage;
		objAccount.ParentId = parentAccId;
		//Add other account required fields here one by one.
		
		return objAccount;
	}
	
	//Create Contact
	private static Contact getContacts(Id candId, Account objParentAccount) {
		Contact objContact = new Contact();
		objContact.FullName = objParentAccount.Name;
		objContact.AccountId = objParentAccount.Id;
		objContact.candidate__c = candId;
		//Add other contact required fields here one by one.
		
		return objContact;
	}
	
	//Create Task
	private static Task getTasks(Contact objContact) {
		Task objTask = new Task();
		objTask.WhoId = objContact.Id;
		objTask.WhatId = objContactCandidate__c;
		objTask.Subject = 'Portal Contact Setup';
		//Add other task required fields here one by one.
		
		return objTask;
	}
}