'''
lamda functions
'''

import boto3
import botocore
import pprint
import sys,os

pp = pprint.PrettyPrinter(indent=5, width=80)

#from http://docs.aws.amazon.com/general/latest/gr/rande.html
regions = ['us-east-1', 'us-east-2', 'us-west-1', 'us-west-2', 'ca-central-1', 'eu-central-1', 'eu-west-1', 'eu-west-2', 'ap-northeast-1', 'ap-northeast-2', 'ap-southeast-1', 'ap-southeast-2',  ]

def list_functions(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY):
	print("### Listing Lambda Functions ###")
	try:
		for region in regions:
			client = boto3.client(
				'lambda',
				aws_access_key_id = AWS_ACCESS_KEY_ID,
				aws_secret_access_key = AWS_SECRET_ACCESS_KEY,
				region_name=region
			)

			response = client.list_functions()

			if response.get('Functions') is None:
				print "{} likely does not have Lambda permissions\n" .format(AWS_ACCESS_KEY_ID)
			elif len(response['Functions']) <= 0:
				print "[-] ListFunctions allowed for {} but no results [-]" .format(region)
			else: #THIS PART IS UNTESTED
				for r in response['Functions']: 
				#for i in r['Instances']:
					pp.pprint(r)
		print("\n")
	except botocore.exceptions.ClientError as e:
		print e
	except KeyboardInterrupt:
		print("CTRL-C received, exiting...")

def list_event_source_mappings(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY):
	print("### Listing Lambda Event Source Mappings ###")
	try:
		for region in regions:
			client = boto3.client(
				'lambda',
				aws_access_key_id = AWS_ACCESS_KEY_ID,
				aws_secret_access_key = AWS_SECRET_ACCESS_KEY,
				region_name=region
			)

			response = client.list_event_source_mappings()

			if response.get('EventSourceMappings') is None:
				print "{} likely does not have Lambda permissions\n" .format(AWS_ACCESS_KEY_ID)
			elif len(response['EventSourceMappings']) <= 0:
				print "[-] ListEventSourceMappings allowed for {} but no results [-]" .format(region)
			else:
				for r in response['EventSourceMappings']: 
				#for i in r['Instances']:
					pp.pprint(r)
		print("\n")
	except botocore.exceptions.ClientError as e:
		print e
	except KeyboardInterrupt:
		print("CTRL-C received, exiting...")