#!/usr/bin/env python

import collections, json, os, textwrap

# This script generates the benchmark_config and setup_*.py files.
# To add new tests, modify the `configurations` and `test_urls` tables.

# Each line corresponds to a test application.
# Format is: (language, orm, (opsys, ...), (test, ...))
# See the dir_name logic below to see the directory name for each test application.
Config = collections.namedtuple('Config', ['lang', 'orm', 'db', 'operatingSystems', 'tests', 'shouldIncludeResults'])
configurations = [

  # Plain Java test

  Config(
    'Java', None, None,
    operatingSystems = ['Linux'],
    tests = ['json'],
    shouldIncludeResults = True
  ),

  # Java database tests

  Config(
    'Java', 'Ebean', 'MySQL',
    operatingSystems = ['Linux'],
    tests = ['db', 'query'],
    shouldIncludeResults = True
  ),
  Config(
    'Java', 'JPA', 'MySQL',
    operatingSystems = ['Linux'],
    tests = ['db', 'query', 'fortune', 'update', 'plaintext'],
    shouldIncludeResults = True
  ),
  Config(
    'Java', 'JPA HikariCP', 'MySQL',
    operatingSystems = ['Linux'],
    tests = ['db', 'query', 'fortune', 'update', 'plaintext'],
    shouldIncludeResults = True
  ),

  # Plain Scala test

  Config(
    'Scala', None, None,
    operatingSystems = ['Linux'],
    tests = ['json'],
    shouldIncludeResults = True
  ),

  # Scala database tests

  Config(
    'Scala', 'Activate', 'MySQL',
    operatingSystems = ['Linux'],
    tests = ['db', 'query', 'fortune', 'update'],
    shouldIncludeResults = False # Uses old versions of Play and Activate
  ),
  Config(
    'Scala', 'Anorm', 'MySQL',
    operatingSystems = ['Linux', 'Windows'],
    tests = ['db', 'query', 'fortune', 'update'],
    shouldIncludeResults = True
  ),
  Config(
    'Scala', 'ReactiveMongo', 'MongoDB',
    operatingSystems = ['Linux'],
    tests = ['db', 'query'],
    shouldIncludeResults = True # Updated to Play 2.3 and ReactiveMongo 0.10, but no maintainer
  ),
  Config(
    'Scala', 'Slick', 'MySQL',
    operatingSystems = ['Linux'],
    tests = ['db', 'query', 'fortune', 'update'],
    shouldIncludeResults = True
  )
]

# All play2 test applications must use the same URLs.
test_urls = {
  'json': '/json',
  'db': '/db',
  'query': '/queries?queries=',
  'fortune': '/fortunes',
  'update': '/update?queries=',
  'plaintext': '/plaintext',
}

langs = {
  'Java': ['Java', 'play2-java'],
  'Scala': ['Scala', 'play2-scala']
}
def pathForLang(lang):
  return os.path.join(frameworksPath(), *langs[lang])
def frameworksPath():
  'Get the absolute path of ROOT/frameworks'
  return os.path.abspath(os.path.join(__file__, '..', '..', '..'))

def maybe(item):
  'Maps None => [] and item => [item]'
  if item is None:
    return []
  else:
    return [item]

def namify(bits, sep):
  'Joins a list of bits together then replaces spaces with sep.'
  return ' '.join(bits).replace(' ', sep).lower()

lang_test_configs = {}
for lang, _ in langs.iteritems():
  lang_test_configs[lang] = collections.OrderedDict()

for config in configurations:

  core_name_bits = [config.lang] + maybe(config.orm)
  dir_name = namify(['play2'] + core_name_bits, '-')
  setup_name = namify(['setup'] + core_name_bits, '_')

  setup_path = os.path.join(pathForLang(config.lang), setup_name+'.py')
  print 'Generating', setup_path
  with open(setup_path, 'w') as f:
    f.write(textwrap.dedent("""
      # This file was generated by frameworks/Java/play2-java/generate_config.py.
      # Do not edit this file directly, use the script to regenerate.
      from .setup_common import make_setup_for_dir

      make_setup_for_dir(globals(), '"""+dir_name+"""')
    """))

  # We make a separate test config entry for each operating system
  # that the test runs on.
  for opsys in config.operatingSystems:

    # Note the test name may differ from the directory name because
    # it may have the OS name or a word to show that results shouldn't
    # be included.

    # If there is more than one OS then add the current OS to the test name
    # so we can distinguish between the tests.
    opsys_name_bit = [] if len(config.operatingSystems) == 1 else [opsys]

    # If the test is out of date then add 'do not include' to the end of the
    # test name to make it harder to accidentally include in final results.
    tags_bit = [] if config.shouldIncludeResults else ['do not include']
    test_name_bits = core_name_bits + opsys_name_bit + tags_bit

    test_config_json = collections.OrderedDict([
      ('display_name', namify(['play2'] + test_name_bits, '-')),
      ('setup_file', setup_name),
      ('framework', 'play2'),
      ('language', config.lang),
      ('orm', 'Full' if config.orm else 'Raw'),
      ('os', opsys),
      ('database', config.db if config.db else 'None'),
      ('approach', 'Realistic'),
      ('classification', 'Fullstack'),
      ('platform', 'Netty'),
      ('webserver', 'None'),
      ('database_os', 'Linux'),
      ('notes', ''),
      ('versus', 'netty'),
      ('port', '9000'),
    ])
    for test in config.tests:
      test_config_json[test+'_url'] = test_urls[test]
      lang_test_configs[config.lang][namify(test_name_bits, '-')] = test_config_json

for lang, _ in langs.iteritems():
  benchmark_config_path = os.path.join(pathForLang(lang), 'benchmark_config')
  print 'Generating', benchmark_config_path
  with open(benchmark_config_path, 'w') as f:
    json_str = json.dumps({
      'framework': 'play2',
      'tests': [lang_test_configs[lang]]
    }, indent=2)
    f.write(json_str)