#!/usr/bin/env python
#
# Script to run Python test scripts.
#
# Version: 20231024

import glob
import os
import sys
import unittest


test_profile = ".pypff"
input_glob = "*"
option_sets = []


def ReadIgnoreList(test_profile):
  """Reads the test profile ignore file if it exists.

  Args:
    test_profile (str): test profile.

  Returns:
    set[str]: ignore list.
  """
  ignore_file_path = os.path.join("tests", "input", test_profile, "ignore")
  if os.path.isfile(ignore_file_path):
    with open(ignore_file_path, "r", encoding="utf-8") as file_object:
      return set([line.strip() for line in file_object.readlines()])

  return set()


if __name__ == "__main__":
  print(f"Using Python version {sys.version!s}")

  test_loader = unittest.TestLoader()
  test_runner = unittest.TextTestRunner(verbosity=2)

  test_scripts = test_loader.discover("tests", pattern="*.py")

  ignore_list = ReadIgnoreList(test_profile)

  test_set = None
  source_file = None

  for test_set in glob.glob(os.path.join("tests", "input", "*")):
    test_set = test_set.rsplit(os.path.sep, maxsplit=1)[-1]
    if not test_set or test_set[0] == '.' or test_set in ignore_list:
      continue

    source_files = glob.glob(os.path.join(
        "tests", "input", test_set, input_glob))
    if source_files:
      source_file = source_files[0]
      break

  setattr(unittest, "source", source_file)

  if source_file:
    for option_set in option_sets:
      test_file = os.path.basename(source_file)
      test_options_file_path = os.path.join(
          "tests", "input", test_profile, test_set,
          f"{test_file:s}.{option_set:s}")
      if os.path.isfile(test_options_file_path):
        with open(test_options_file_path, "r", encoding="utf-8") as file_object:
          lines = [line.strip() for line in file_object.readlines()]
          if lines[0] == "# libyal test data options":
            for line in lines[1:]:
              key, value = line.split("=", maxsplit=1)
              if key == 'offset':
                value = int(value)

              setattr(unittest, key, value)

  test_results = test_runner.run(test_scripts)
  if not test_results.wasSuccessful():
    sys.exit(1)