# Copyright 2018 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
#
#     http://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 script is used to synthesize generated parts of this library."""
import synthtool as s
from synthtool import gcp

gapic = gcp.GAPICGenerator()
common = gcp.CommonTemplates()

# ----------------------------------------------------------------------------
# Generate spanner GAPIC layer
# ----------------------------------------------------------------------------
library = gapic.py_library(
    "spanner",
    "v1",
    config_path="/google/spanner/artman_spanner.yaml",
    artman_output_name="spanner-v1",
    include_protos=True,
)

s.move(library / "google/cloud/spanner_v1/proto")
s.move(library / "google/cloud/spanner_v1/gapic")
s.move(library / "tests")

# Add grpcio-gcp options
s.replace(
    "google/cloud/spanner_v1/gapic/transports/spanner_grpc_transport.py",
    "import google.api_core.grpc_helpers\n",
    "import pkg_resources\n"
    "import grpc_gcp\n"
    "\n"
    "import google.api_core.grpc_helpers\n",
)
s.replace(
    "google/cloud/spanner_v1/gapic/transports/spanner_grpc_transport.py",
    "from google.cloud.spanner_v1.proto import spanner_pb2_grpc\n",
    "\g<0>\n\n_SPANNER_GRPC_CONFIG = 'spanner.grpc.config'\n",
)

s.replace(
    "google/cloud/spanner_v1/gapic/transports/spanner_grpc_transport.py",
    "(\s+)return google.api_core.grpc_helpers.create_channel\(\n",
    "\g<1>grpc_gcp_config = grpc_gcp.api_config_from_text_pb("
    "\g<1>    pkg_resources.resource_string(__name__, _SPANNER_GRPC_CONFIG))"
    "\g<1>options = [(grpc_gcp.API_CONFIG_CHANNEL_ARG, grpc_gcp_config)]"
    "\g<0>",
)
s.replace(
    "tests/unit/gapic/v1/test_spanner_client_v1.py",
    "from google.cloud import spanner_v1",
    "from google.cloud.spanner_v1.gapic import spanner_client as spanner_v1",
)

# ----------------------------------------------------------------------------
# Generate instance admin client
# ----------------------------------------------------------------------------
library = gapic.py_library(
    "spanner_admin_instance",
    "v1",
    config_path="/google/spanner/admin/instance" "/artman_spanner_admin_instance.yaml",
    artman_output_name="spanner-admin-instance-v1",
    include_protos=True,
)

s.move(library / "google/cloud/spanner_admin_instance_v1/gapic")
s.move(library / "google/cloud/spanner_admin_instance_v1/proto")
s.move(library / "tests")

# Fix up the _GAPIC_LIBRARY_VERSION targets
s.replace(
    "google/cloud/spanner_admin_instance_v1/gapic/instance_admin_client.py",
    "'google-cloud-spanner-admin-instance'",
    "'google-cloud-spanner'",
)

# Fix up generated imports
s.replace(
    "google/**/*.py",
    "from google\.cloud\.spanner\.admin\.instance_v1.proto",
    "from google.cloud.spanner_admin_instance_v1.proto",
)

# Fix docstrings
s.replace("google/cloud/spanner_v1/proto/transaction_pb2.py", r"""====*""", r"")
s.replace("google/cloud/spanner_v1/proto/transaction_pb2.py", r"""----*""", r"")
s.replace("google/cloud/spanner_v1/proto/transaction_pb2.py", r"""~~~~*""", r"")

# ----------------------------------------------------------------------------
# Generate database admin client
# ----------------------------------------------------------------------------
library = gapic.py_library(
    "spanner_admin_database",
    "v1",
    config_path="/google/spanner/admin/database" "/artman_spanner_admin_database.yaml",
    artman_output_name="spanner-admin-database-v1",
    include_protos=True,
)

s.move(library / "google/cloud/spanner_admin_database_v1/gapic")
s.move(library / "google/cloud/spanner_admin_database_v1/proto")
s.move(library / "tests")

# Fix up the _GAPIC_LIBRARY_VERSION targets
s.replace(
    "google/cloud/spanner_admin_database_v1/gapic/database_admin_client.py",
    "'google-cloud-spanner-admin-database'",
    "'google-cloud-spanner'",
)

# Fix up the _GAPIC_LIBRARY_VERSION targets
s.replace(
    "google/**/*.py",
    "from google\.cloud\.spanner\.admin\.database_v1.proto",
    "from google.cloud.spanner_admin_database_v1.proto",
)

# ----------------------------------------------------------------------------
# Add templated files
# ----------------------------------------------------------------------------
templated_files = common.py_library(unit_cov_level=97, cov_level=100)
s.move(templated_files)

# Template's MANIFEST.in does not include the needed GAPIC config file.
# See PR #6928.
s.replace(
    "MANIFEST.in",
    "include README.rst LICENSE\n",
    "include README.rst LICENSE\n"
    "include google/cloud/spanner_v1/gapic/transports/spanner.grpc.config\n",
)

s.shell.run(["nox", "-s", "blacken"], hide_output=False)
