package com.crm.process.smsproviders;

import java.util.HashMap;

import javax.ejb.EJB;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;

import com.crm.businessobject.smsproviders.CRMBOSMSProviderBean;
import com.crm.dataobject.communications.TWILIOCRMDOSmsSettings;
import com.crm.dataobject.smsproviders.CRMDOSMSProvider;
import com.crm.dataobject.smsproviders.SendSMSParameters;
import com.crm.framework.util.CallList;
import com.crm.framework.util.ExceptionUtil;
import com.twilio.Twilio;
import com.twilio.exception.ApiException;
import com.twilio.rest.api.v2010.account.Message;
import
com.twilio.type.PhoneNumber;

@Stateless(mappedName = "ejb/TWILIOCRMProcessTwilioSMSProviderCUSTOMCRMProcessCustomSMSProvider")
@LocalBean
public class TWILIOCRMProcessTwilioSMSProviderBeanCUSTOMCRMProcessCustomSMSProviderBean extends CRMProcessSMSProvidersBean{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	@EJB private CRMBOSMSProviderBean smsProviderBean;
	
	private final String ALIAS_PASSWORD					= "password";
	private final String ALIAS_USERNAME					= "username";
	private final String ALIAS_FROM						= "commFrom";
	
	
	public static String PROVIDER_PROTOCOL = "TWILIOCUSTOM";

	@Override
	public SMSProviderResult sendSMS(String toPhone, String fromPhone, String message,String contactID, SendSMSParameters parameters)throws Exception {

		
		
		TWILIOCRMDOSmsSettingsCUSTOMSmsSettings smsSettings = new TWILIOCRMDOSmsSettingsCUSTOMSmsSettings(); //Optional Custom Object to hold your Sms Provider Settings
		SMSProviderResult result = new SMSProviderResult();
		
		try
		{
		
			HashMap<String, Object> generalParameters = parameters.getGeneralParameters();
		
			smsSettings.setUsername((String) generalParameters.get(ALIAS_USERNAME));
			smsSettings.setPassword((String) generalParameters.get(ALIAS_PASSWORD));
			smsSettings.setCommFrom((String) generalParameters.get(ALIAS_FROM));
			if(fromPhone==null){
				if(smsSettings.getCommFrom()!=null){
					fromPhone=smsSettings.getCommFrom();
				}else{
					fromPhone="CRM.COM";
				}
			}
			if(smsSettings.getCommFrom()==null){
				smsSettings.setCommFrom(fromPhone);
			}
			
			Twilio.init(smsSettings.getUsername(), smsSettings.getPassword());
			Message messageToSend = Message
					.creator(new PhoneNumber(toPhone), 
							new PhoneNumber(smsSettings.getCommFrom()), 
							message)
					.create();//Implementation of the logic needed to communicate with SMS Provider, send the SMS and get the response
			
			result.setStatus(SMSProviderResultStatus.COMPLETED);
			
		}catch(ApiException e){
			String request1 = new String("Request: Communication for Contact Information: "+contactID+". Sending from ****"+ getLastFourDigits(fromPhone) + " to phone 		number ****" + getLastFourDigits(toPhone));
			CallList.LogTextFile(getCRMSession(),request1,
					"Providers/SMS Gateways/Errors/TWILIOCUSTOM_SMS_GATEWAY", "");
			CallList.LogTextFile(getCRMSession(), "Error:" + ((ApiException)e).getMoreInfo(),
					"Providers/SMS Gateways/Errors/TWILIOCUSTOM_SMS_GATEWAY", "");

			result.setStatus(SMSProviderResultStatus.REJECTED);
			if(e.getCode()!=null)
				result.setErrorCode(e.getCode()+"");
			
			result.setErrorDescription(e.getMoreInfo());
		}catch(Exception e){
			String request1 = new String("Request: Communication for Contact Information: "+contactID+". Sending from ****"+ getLastFourDigits(fromPhone) + " to phone number ****" + getLastFourDigits(toPhone));
			CallList.LogTextFile(getCRMSession(),request1,
					"Providers/SMS Gateways/Errors/TWILIO_SMS_GATEWAY", "");
			CallList.LogTextFile(getCRMSession(), "Error:" + ExceptionUtil.getStackTrace(e),
					"Providers/SMS Gateways/Errors/TWILIO_SMS_GATEWAY", "");

			result.setStatus(SMSProviderResultStatus.REJECTED);
			result.setErrorCode("500");
			result.setErrorDescription(e.getMessage());
		}
		return result;
	}

	@Override
	public String getProtocol() throws Exception {
		return PROVIDER_PROTOCOL;
	}

	@Override
	public CRMDOSMSProvider setObjectsFromXML(CRMDOSMSProvider smsProvider) throws Exception {
		// TODO Auto-generated method stub
		return smsProvider;
	}
	
	/**
	 * Loads an effective sms provider 
	 * 
	 * @return an effective sms provider
	 * @throws Exception
	 */
	public CRMDOSMSProvider loadProvider() throws Exception {
		
		CRMDOSMSProvider smsProvider = loadEffectiveProvider(getProtocol());
		
		return smsProvider;
	}

	/**
	 * Loads an effective sms provider based on provider protocol
	 * 
	 * @param protocol, sms provider protocol
	 * @return
	 * @throws Exception
	 */
	public CRMDOSMSProvider loadEffectiveProvider(String protocol) throws Exception
	{
		return loadEffectiveProvider(protocol, true);
	}	
	
	/**
	 * Loads a effective provider based on provider protocol
	 * 
	 * @param protocol  sms provider protocol
	 * @param applicationServerFiltering - filter the provider based on application servers filtering configuration
	 * @return
	 * @throws Exception
	 */
	public CRMDOSMSProvider loadEffectiveProvider(String protocol , Boolean applicationServerFiltering) throws Exception {
		
		CRMDOSMSProvider smsProvider =  smsProviderBean.loadEffective(protocol,applicationServerFiltering);
		if(smsProvider!=null)
		{
			smsProvider = setObjectsFromXML(smsProvider);
		}
		
		return smsProvider;
	}
	
	/**
     * Loads a provider based on provider protocol
     * 
     * @throws Exception
     */
	public CRMDOSMSProvider loadProvider(String protocol) throws Exception
	{
		CRMDOSMSProvider smsProvider =  smsProviderBean.loadByProtocol(protocol);
		
		smsProvider = smsProviderBean.setObjectsFromXML(smsProvider);
		
		return smsProvider;
	}
	
	public String getLastFourDigits(String input){
		String lastFourDigits = "";     //substring containing last 4 characters
		 
		if (input.length() > 4)
		{
		    lastFourDigits = input.substring(input.length() - 4);
		}
		else
		{
		    lastFourDigits = input;
		}
		return lastFourDigits;
	}

}