# Copyright 2022 The Bazel Authors. All rights reserved.
#
# 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.
"""Credential helper for testing."""

import json
import os
import sys
import time


def eprint(*args, **kargs):
  print(*args, file=sys.stderr, **kargs)


def main(argv):
  if len(argv) != 2:
    eprint("Usage: test_credential_helper <command>")
    return 1

  if argv[1] != "get":
    eprint("Unknown command '{}'".format(argv[1]))
    return 1

  request = json.load(sys.stdin)
  if request["uri"] == "https://singleheader.example.com":
    response = {
        "headers": {
            "header1": ["value1"],
        },
    }
  elif request["uri"] == "https://multipleheaders.example.com":
    response = {
        "headers": {
            "header1": ["value1"],
            "header2": ["value1", "value2"],
            "header3": ["value1", "value2", "value3"],
        },
    }
  elif request["uri"] == "https://extrafields.example.com":
    response = {
        "foo": "YES",
        "headers": {
            "header1": ["value1"],
        },
        "umlaut": [
            "ß",
            "å",
        ],
    }
  elif request["uri"] == "https://printnothing.example.com":
    return 0
  elif request["uri"] == "https://cwd.example.com":
    response = {
        "headers": {
            "cwd": [os.getcwd()],
        },
    }
  elif request["uri"] == "https://env.example.com":
    response = {
        "headers": {
            "foo": [os.getenv("FOO")],
            "bar": [os.getenv("BAR")],
        },
    }
  elif request["uri"] == "https://timeout.example.com":
    # We expect the subprocess to be killed after 5s.
    time.sleep(10)
    response = {
        "headers": {
            "header1": ["value1"],
        },
    }
  else:
    eprint("Unknown uri '{}'".format(request["uri"]))
    return 1
  json.dump(response, sys.stdout)
  return 0


if __name__ == "__main__":
  sys.exit(main(sys.argv))