#!/usr/bin/env python
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This example adds a responsive search ad to a given ad group.

To get ad groups, run get_ad_groups.py.
"""


import argparse
import sys
from uuid import uuid4

from google.ads.googleads.client import GoogleAdsClient
from google.ads.googleads.errors import GoogleAdsException


def main(client, customer_id, ad_group_id):
    ad_group_ad_service = client.get_service("AdGroupAdService")
    ad_group_service = client.get_service("AdGroupService")

    # Create the ad group ad.
    ad_group_ad_operation = client.get_type("AdGroupAdOperation")
    ad_group_ad = ad_group_ad_operation.create
    ad_group_ad.status = client.enums.AdGroupAdStatusEnum.PAUSED
    ad_group_ad.ad_group = ad_group_service.ad_group_path(
        customer_id, ad_group_id
    )

    # Set responsive search ad info.
    ad_group_ad.ad.final_urls.append("http://www.example.com")

    # Set a pinning to always choose this asset for HEADLINE_1. Pinning is
    # optional; if no pinning is set, then headlines and descriptions will be
    # rotated and the ones that perform best will be used more often.
    served_asset_enum = client.enums.ServedAssetFieldTypeEnum.HEADLINE_1
    pinned_headline = _create_ad_text_asset(
        client, f"Cruise to Mars #{str(uuid4())[:8]}", served_asset_enum
    )

    ad_group_ad.ad.responsive_search_ad.headlines.extend(
        [
            pinned_headline,
            _create_ad_text_asset(client, "Best Space Cruise Line"),
            _create_ad_text_asset(client, "Experience the Stars"),
        ]
    )
    ad_group_ad.ad.responsive_search_ad.descriptions.extend(
        [
            _create_ad_text_asset(client, "Buy your tickets now"),
            _create_ad_text_asset(client, "Visit the Red Planet"),
        ]
    )
    ad_group_ad.ad.responsive_search_ad.path1 = "all-inclusive"
    ad_group_ad.ad.responsive_search_ad.path2 = "deals"

    # Send a request to the server to add a responsive search ad.
    ad_group_ad_response = ad_group_ad_service.mutate_ad_group_ads(
        customer_id=customer_id, operations=[ad_group_ad_operation]
    )

    for result in ad_group_ad_response.results:
        print(
            f"Created responsive search ad with resource name "
            f'"{result.resource_name}".'
        )


def _create_ad_text_asset(client, text, pinned_field=None):
    """Create an AdTextAsset."""
    ad_text_asset = client.get_type("AdTextAsset")
    ad_text_asset.text = text
    if pinned_field:
        ad_text_asset.pinned_field = pinned_field
    return ad_text_asset


if __name__ == "__main__":
    # GoogleAdsClient will read the google-ads.yaml configuration file in the
    # home directory if none is specified.
    googleads_client = GoogleAdsClient.load_from_storage(version="v10")

    parser = argparse.ArgumentParser(
        description=(
            "Adds an expanded text ad to the specified ad group ID, "
            "for the given customer ID."
        )
    )
    # The following argument(s) should be provided to run the example.
    parser.add_argument(
        "-c",
        "--customer_id",
        type=str,
        required=True,
        help="The Google Ads customer ID.",
    )
    parser.add_argument(
        "-a", "--ad_group_id", type=str, required=True, help="The ad group ID."
    )
    args = parser.parse_args()

    try:
        main(googleads_client, args.customer_id, args.ad_group_id)
    except GoogleAdsException as ex:
        print(
            f'Request with ID "{ex.request_id}" failed with status '
            f'"{ex.error.code().name}" and includes the following errors:'
        )
        for error in ex.failure.errors:
            print(f'\tError with message "{error.message}".')
            if error.location:
                for field_path_element in error.location.field_path_elements:
                    print(f"\t\tOn field: {field_path_element.field_name}")
        sys.exit(1)
