# Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this
# software and associated documentation files (the "Software"), to deal in the Software
# without restriction, including without limitation the rights to use, copy, modify,
# merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# This code expects that you have AWS credentials setup per:
# https://boto3.amazonaws.com/v1/documentation/api/latest/guide/quickstart.html
from logging import basicConfig, getLogger, INFO

from pyqldbsamples.constants import Constants
from pyqldbsamples.model.sample_data import convert_object_to_ion, SampleData, get_document_ids_from_dml_results
from pyqldbsamples.connect_to_ledger import create_qldb_driver

logger = getLogger(__name__)
basicConfig(level=INFO)


def update_person_id(document_ids):
    """
    Update the PersonId value for DriversLicense records and the PrimaryOwner value for VehicleRegistration records.

    :type document_ids: list
    :param document_ids: List of document IDs.

    :rtype: list
    :return: Lists of updated DriversLicense records and updated VehicleRegistration records.
    """
    new_drivers_licenses = SampleData.DRIVERS_LICENSE.copy()
    new_vehicle_registrations = SampleData.VEHICLE_REGISTRATION.copy()
    for i in range(len(SampleData.PERSON)):
        drivers_license = new_drivers_licenses[i]
        registration = new_vehicle_registrations[i]
        drivers_license.update({'PersonId': str(document_ids[i])})
        registration['Owners']['PrimaryOwner'].update({'PersonId': str(document_ids[i])})
    return new_drivers_licenses, new_vehicle_registrations


def insert_documents(driver, table_name, documents):
    """
    Insert the given list of documents into a table in a single transaction.

    :type driver: :py:class:`pyqldb.driver.qldb_driver.QldbDriver`
    :param driver: An instance of the QldbDriver class.

    :type table_name: str
    :param table_name: Name of the table to insert documents into.

    :type documents: list
    :param documents: List of documents to insert.

    :rtype: list
    :return: List of documents IDs for the newly inserted documents.
    """
    logger.info('Inserting some documents in the {} table...'.format(table_name))
    statement = 'INSERT INTO {} ?'.format(table_name)
    cursor = driver.execute_lambda(lambda executor: executor.execute_statement(statement,
                                                                               convert_object_to_ion(documents)))
    list_of_document_ids = get_document_ids_from_dml_results(cursor)

    return list_of_document_ids


def update_and_insert_documents(driver):
    """
    Handle the insertion of documents and updating PersonIds.

    :type driver: :py:class:`pyqldb.driver.qldb_driver.QldbDriver`
    :param driver: An instance of the QldbDriver class.
    """
    list_ids = insert_documents(driver, Constants.PERSON_TABLE_NAME, SampleData.PERSON)

    logger.info("Updating PersonIds for 'DriversLicense' and PrimaryOwner for 'VehicleRegistration'...")
    new_licenses, new_registrations = update_person_id(list_ids)

    insert_documents(driver, Constants.VEHICLE_TABLE_NAME, SampleData.VEHICLE)
    insert_documents(driver, Constants.VEHICLE_REGISTRATION_TABLE_NAME, new_registrations)
    insert_documents(driver, Constants.DRIVERS_LICENSE_TABLE_NAME, new_licenses)


def main(ledger_name=Constants.LEDGER_NAME):
    """
    Insert documents into a table in a QLDB ledger.
    """
    try:
        with create_qldb_driver(ledger_name) as driver:
            # An INSERT statement creates the initial revision of a document with a version number of zero.
            # QLDB also assigns a unique document identifier in GUID format as part of the metadata.
            update_and_insert_documents(driver)
            logger.info('Documents inserted successfully!')
    except Exception as e:
        logger.exception('Error inserting or updating documents.')
        raise e


if __name__ == '__main__':
    main()