mmi2grpc: use python gRPC build system from bt-test-interfaces

Remove python gRPC build system as it has been integrated in
bt-test-interfaces.

Change-Id: I38eec0f321d7d89db9c434f8eb921ac5a4b5aa0e
diff --git a/.gitignore b/.gitignore
index 4652040..bee8a64 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1 @@
-dist
 __pycache__
-pandora/*
-!pandora/__init__.py
-.eggs/
diff --git a/.gitmodules b/.gitmodules
index f054688..2a24692 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "bt-test-interfaces"]
-	path = proto
+	path = bt-test-interfaces
 	url = sso://pandora/bt-test-interfaces
diff --git a/README.md b/README.md
index e9233cc..c9fec3a 100644
--- a/README.md
+++ b/README.md
@@ -5,13 +5,13 @@
 ```bash
 git submodule update --init
 
-pip install -e . # With editable mode
-# Or
-pip install . # Without editable mode
+pip install [-e] bt-test-interfaces/python
+pip install [-e] .
 ```
 
-## Rebuild gRPC interfaces
+## Rebuild gRPC Bluetooth test interfaces
 
 ```bash
-./_build/grpc.py
+pip install grpcio-tools==1.46.3
+./bt-test-interfaces/python/_build/grpc.py
 ```
diff --git a/_build/__init__.py b/_build/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/_build/__init__.py
+++ /dev/null
diff --git a/_build/backend.py b/_build/backend.py
deleted file mode 100644
index f25546b..0000000
--- a/_build/backend.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# Copyright 2022 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.
-
-"""PEP517 build backend."""
-
-from .grpc import build as build_pandora_grpc
-
-from flit_core.wheel import WheelBuilder
-# Use all build hooks from flit
-from flit_core.buildapi import *
-
-
-# Build grpc interfaces when this build backend is invoked
-build_pandora_grpc()
-
-# flit only supports copying one module, but we need to copy two of them
-# because protobuf forces the use of absolute imports.
-# So Monkey patches WheelBuilder#copy_module to copy pandora folder too.
-# To avoid breaking this, the version of flit_core is pinned in pyproject.toml.
-old_copy_module = WheelBuilder.copy_module
-
-
-def copy_module(self):
-    from flit_core.common import Module
-
-    old_copy_module(self)
-
-    module = self.module
-
-    self.module = Module('pandora', self.directory)
-    old_copy_module(self)
-
-    self.module = module
-
-
-WheelBuilder.copy_module = copy_module
diff --git a/_build/grpc.py b/_build/grpc.py
deleted file mode 100755
index ae020a2..0000000
--- a/_build/grpc.py
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/usr/bin/env python3
-
-# Copyright 2022 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.
-
-"""Build gRPC pandora interfaces."""
-
-import os
-import pkg_resources
-from grpc_tools import protoc
-
-package_directory = os.path.dirname(os.path.realpath(__file__))
-
-
-def build():
-
-    os.environ['PATH'] = package_directory + ':' + os.environ['PATH']
-
-    proto_include = pkg_resources.resource_filename('grpc_tools', '_proto')
-
-    files = [
-        f'pandora/{f}' for f in os.listdir('proto/pandora') if f.endswith('.proto')]
-    protoc.main([
-        'grpc_tools.protoc',
-        '-Iproto',
-        f'-I{proto_include}',
-        '--python_out=.',
-        '--custom_grpc_out=.',
-    ] + files)
-
-
-if __name__ == '__main__':
-    build()
diff --git a/_build/protoc-gen-custom_grpc b/_build/protoc-gen-custom_grpc
deleted file mode 100755
index 00e47a5..0000000
--- a/_build/protoc-gen-custom_grpc
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/usr/bin/env python3
-
-# Copyright 2022 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.
-
-"""Custom mmi2grpc gRPC compiler."""
-
-import sys
-
-from google.protobuf.compiler.plugin_pb2 import CodeGeneratorRequest, \
-    CodeGeneratorResponse
-
-
-def eprint(*args, **kwargs):
-    print(*args, file=sys.stderr, **kwargs)
-
-
-request = CodeGeneratorRequest.FromString(sys.stdin.buffer.read())
-
-
-def has_type(proto_file, type_name):
-    return any(filter(lambda x: x.name == type_name, proto_file.message_type))
-
-
-def import_type(imports, type):
-    package = type[1:type.rindex('.')]
-    type_name = type[type.rindex('.')+1:]
-    file = next(filter(
-        lambda x: x.package == package and has_type(x, type_name),
-        request.proto_file))
-    python_path = file.name.replace('.proto', '').replace('/', '.')
-    as_name = python_path.replace('.', '_dot_') + '__pb2'
-    module_path = python_path[:python_path.rindex('.')]
-    module_name = python_path[python_path.rindex('.')+1:] + '_pb2'
-    imports.add(f'from {module_path} import {module_name} as {as_name}')
-    return f'{as_name}.{type_name}'
-
-
-def generate_method(imports, file, service, method):
-    input_mode = 'stream' if method.client_streaming else 'unary'
-    output_mode = 'stream' if method.server_streaming else 'unary'
-
-    input_type = import_type(imports, method.input_type)
-    output_type = import_type(imports, method.output_type)
-
-    if input_mode == 'stream':
-        return (
-            f'def {method.name}(self, iterator, **kwargs):\n'
-            f'    return self.channel.{input_mode}_{output_mode}(\n'
-            f"        '/{file.package}.{service.name}/{method.name}',\n"
-            f'        request_serializer={input_type}.SerializeToString,\n'
-            f'        response_deserializer={output_type}.FromString\n'
-            f'    )(iterator, **kwargs)'
-        ).split('\n')
-    else:
-        return (
-            f'def {method.name}(self, wait_for_ready=None, **kwargs):\n'
-            f'    return self.channel.{input_mode}_{output_mode}(\n'
-            f"        '/{file.package}.{service.name}/{method.name}',\n"
-            f'        request_serializer={input_type}.SerializeToString,\n'
-            f'        response_deserializer={output_type}.FromString\n'
-            f'    )({input_type}(**kwargs), wait_for_ready=wait_for_ready)'
-        ).split('\n')
-
-
-def generate_service(imports, file, service):
-    methods = '\n\n    '.join([
-        '\n    '.join(
-            generate_method(imports, file, service, method)
-        ) for method in service.method
-    ])
-    return (
-        f'class {service.name}:\n'
-        f'    def __init__(self, channel):\n'
-        f'        self.channel = channel\n'
-        f'\n'
-        f'    {methods}\n'
-    ).split('\n')
-
-
-files = []
-
-for file_name in request.file_to_generate:
-    file = next(filter(lambda x: x.name == file_name, request.proto_file))
-
-    imports = set([])
-
-    services = '\n'.join(sum([
-        generate_service(imports, file, service) for service in file.service
-    ], []))
-
-    files.append(CodeGeneratorResponse.File(
-        name=file_name.replace('.proto', '_grpc.py'),
-        content='\n'.join(imports) + '\n\n' + services
-    ))
-
-reponse = CodeGeneratorResponse(file=files)
-
-sys.stdout.buffer.write(reponse.SerializeToString())
diff --git a/bt-test-interfaces b/bt-test-interfaces
new file mode 160000
index 0000000..469be68
--- /dev/null
+++ b/bt-test-interfaces
@@ -0,0 +1 @@
+Subproject commit 469be68bd8e816707adf43d71af9b3cd22226b91
diff --git a/mmi2grpc/__init__.py b/mmi2grpc/__init__.py
index 2fd8603..6385e71 100644
--- a/mmi2grpc/__init__.py
+++ b/mmi2grpc/__init__.py
@@ -95,7 +95,7 @@
             description: MMI description.
             style: MMI popup style, unused for now.
         """
-        print(f'{profile} mmi: {description}', file=sys.stderr)
+        print(f'{profile} mmi: {interaction}', file=sys.stderr)
 
         # Handles A2DP and AVDTP MMIs.
         if profile in ('A2DP', 'AVDTP'):
diff --git a/pandora/__init__.py b/pandora/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/pandora/__init__.py
+++ /dev/null
diff --git a/proto b/proto
deleted file mode 160000
index 5c9f411..0000000
--- a/proto
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 5c9f411d1eefac171b76051b18bd0b0435c7790b
diff --git a/pyproject.toml b/pyproject.toml
index 6923987..de54399 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,12 +3,13 @@
 authors = [{name = "Pandora", email = "pandora-core@google.com"}]
 readme = "README.md"
 dynamic = ["version", "description"]
-dependencies = ["grpcio >=1.41", "numpy >=1.22", "scipy >= 1.8"]
-
-[tool.flit.sdist]
-include = ["_build", "proto", "pandora"]
+dependencies = [
+    "bt-test-interfaces",
+    "grpcio>=1.41",
+    "numpy>=1.22",
+    "scipy>=1.8"
+]
 
 [build-system]
-requires = ["flit_core==3.7.1", "grpcio-tools >=1.41"]
-build-backend = "_build.backend"
-backend-path = ["."]
+requires = ["flit_core==3.7.1"]
+build-backend = "flit_core.buildapi"