#!/usr/bin/python3

import boto3
# import json


def recurseChildren(ouid, level):
    children = client.list_organizational_units_for_parent(ParentId=ouid).get('OrganizationalUnits')
    if len(children) == 0:
        printChildAccounts(ouid, level)
        return
    else:
        if ouid.startswith('r'):
            printChildAccounts(ouid, level)
        for ou in children:
            print('.' * level, ou.get('Name'), ou.get('Id'))
            if ouid.startswith('ou'):
                printChildAccounts(ouid, level)
            recurseChildren(ou.get('Id'), level + 1)


def printChildAccounts(ouid, level):
    childAccounts = client.list_accounts_for_parent(ParentId=ouid).get('Accounts')
    for account in childAccounts:
        print('.' * level, account.get('Name'), account.get('Id'))
    return


client = boto3.client('organizations')
response = client.list_roots()

# print(json.dumps(response))
rootId = response['Roots'][0]['Id']
print('Root ', rootId)

recurseChildren(rootId, 1)