/**
* @author       Mateusz Bednarek
* @description  Batch class used to send reminder email from Extenstions to Customer and General Constructor
*/

global without sharing class ExtensionDateEmailBatch implements Database.Batchable<sObject> {
	global static final String HALF_TIME_EMAIL = 'Informacja o upłynięciu połowy terminu usterek';
	global static final String END_TIME_TO_CUSTOMER = 'Informacja o upłynięciu terminu usterek do klienta';
	global static final String END_TIME_TO_GW = 'Informacja o upłynięciu terminu usterek';

	String query = '';

	global ExtensionDateEmailBatch() {
        query = 'select id, Today__c, RecordType.DeveloperName, Status__c, Half_Time_to_Fix_Defects_GW__c, Due_Date_For_General_Contractor__c,Due_Date_for_Client__c from Extension__c';
    }

    global Database.QueryLocator start(Database.BatchableContext BC) {
        return Database.getQueryLocator(query);
    }

    global void execute(Database.BatchableContext BC, List<Extension__c> scope) {
    	String halfTimeTemplate = [SELECT Id FROM EmailTemplate WHERE Name = :HALF_TIME_EMAIL LIMIT 1].Id;
    	String endTimeCustomerTemplate = [SELECT Id FROM EmailTemplate WHERE Name = :END_TIME_TO_CUSTOMER LIMIT 1].Id;
    	String endTimeToGW = [SELECT Id FROM EmailTemplate WHERE Name = :END_TIME_TO_GW LIMIT 1].Id;


    	Map<String, List<Extension__c>> extenstionMapToSend = new Map<String,Extension__c>();
    	List<Extension__c> halfTimeToGwExtenstionList = new List<Extension__c>();
    	List<Extension__c> endTimeExtenstionList = new List<Extension__c>();

        for(Extension__c extenstion : scope) {
        	//Send half time email to General Constructor
        	if(extenstion.RecordType.DeveloperName ='Failure' && extenstion.Status__ != 'Fixed' && extenstion.Status__c != 'Fixed by the contractor' && extenstion.Today__c == extenstion.Half_Time_to_Fix_Defects_GW__c ){
        		halfTimeToGwExtenstionList.add(extenstion);
        	}
        	//Send end time email to Customer and GW when expiration time passed
        	if((extenstion.RecordType.DeveloperName ='Failure' || extenstion.RecordType.DeveloperName ='Handover_Failure' || extenstion.RecordType.DeveloperName ='Common_Failure')
        	 && extenstion.Today__c == extenstion.Half_Time_to_Fix_Defects_GW__c && extenstion.Status__ != 'Fixed' && extenstion.Status__c != 'Fixed by the contractor' ){
        		endTimeExtenstionList.add(extenstion);
        	}
        }
	        if(halfTimeToGwExtenstionList.size() > 0){
	         	extenstionMapToSend.put(halfTimeTemplate,halfTimeToGwExtenstionList);
	        }
         	if(endTimeExtenstionList.size() > 0){
         		extenstionMapToSend.put(endTimeCustomerTemplate,endTimeExtenstionList);
         		extenstionMapToSend.put(endTimeToGW,endTimeExtenstionList);
         	}
        try{
            //ResourceReservation.manextenstionMapToSend.put(ageReservationStatus(salesProcessesToUpdateQueue);
            ExtensionManager.sendExpirationReminderEmail(extenstionMapToSend);
        } catch(Exception e) {
            System.debug('Batch update failed. Details: '+e);
        }
    }

    global void finish(Database.BatchableContext BC) {

    }
}