#!/usr/bin/env python2.7

from __future__ import print_function
import optparse
import os
import sys
import subprocess

import django
from django.conf import settings
from django.test.utils import get_runner

if __name__ == "__main__":
    TOOLS_DIR = os.path.dirname(os.path.abspath(__file__))
    sys.path.insert(0, os.path.dirname(TOOLS_DIR))
    os.environ['DJANGO_SETTINGS_MODULE'] = 'zproject.test_settings'
    # "-u" uses unbuffered IO, which is important when wrapping it in subprocess
    os.environ['PYTHONUNBUFFERED'] = 'y'
    django.setup()

    parser = optparse.OptionParser()
    parser.add_option('--nonfatal-errors', action="store_false", default=True,
                      dest="fatal_errors", help="Continue past test failures to run all tests")
    parser.add_option('--coverage', dest='coverage',
                      action="store_true",
                      default=False, help='Compute test coverage.')
    parser.add_option('--profile', dest='profile',
                      action="store_true",
                      default=False, help='Profile test runtime.')

    (options, args) = parser.parse_args()
    if len(args) == 0:
        suites = ["zerver.tests"]
    else:
        suites = args

    if options.coverage:
        import coverage
        cov = coverage.Coverage(omit="*/zulip-venv-cache/*")
        cov.start()
    if options.profile:
        import cProfile
        prof = cProfile.Profile()
        prof.enable()

    subprocess.call(os.path.join(TOOLS_DIR, 'setup', 'generate-fixtures'))

    TestRunner = get_runner(settings)
    test_runner = TestRunner()
    failures = test_runner.run_tests(suites, fatal_errors=options.fatal_errors)

    if options.coverage:
        cov.stop()
        cov.save()
        print("Printing coverage data")
        cov.report(show_missing=False)
        cov.html_report()
        print("HTML report saved to htmlcov/")
    if options.profile:
        prof.disable()
        prof.dump_stats("/tmp/profile.data")
        print("Profile data saved to /tmp/profile.data")
        print("You can visualize it using e.g. `runsnake /tmp/profile.data`")

    if failures:
        print('FAILED!')
    else:
        print('DONE!')
    sys.exit(bool(failures))