#!/usr/bin/env python3
import argparse
import subprocess
import sys
import os
import glob
import shlex

ZULIP_PATH = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

os.environ["PUPPETEER_TESTS"] = "1"
os.environ["CHROMIUM_EXECUTABLE"] = os.path.join(ZULIP_PATH, "node_modules/.bin/chromium")
os.environ.pop("http_proxy", "")
os.environ.pop("https_proxy", "")

usage = """test-js-with-puppeteer [options]
    test-js-with-puppeteer # Run all test files
    test-js-with-puppeteer 09-navigation.js # Run a single test file
    test-js-with-puppeteer 09 # Run a single test file 09-navigation.js
    test-js-with-puppeteer 01-login.js 03-narrow.js # Run a few test files
    test-js-with-puppeteer 01 03 # Run a few test files, 01-login.js and 03-narrow.js here"""
parser = argparse.ArgumentParser(usage)

parser.add_argument('--interactive', dest='interactive',
                    action="store_true",
                    default=False, help='Run tests interactively')
parser.add_argument('--force', dest='force',
                    action="store_true",
                    default=False, help='Run tests despite possible problems.')
parser.add_argument('tests', nargs=argparse.REMAINDER,
                    help='Specific tests to run; by default, runs all tests')

options = parser.parse_args()

sys.path.insert(0, ZULIP_PATH)

# check for the venv
from tools.lib import sanity_check
sanity_check.check_venv(__file__)

from tools.lib.test_script import assert_provisioning_status_ok
from tools.lib.test_server import test_server_running

from typing import Iterable

assert_provisioning_status_ok(options.force)

os.chdir(ZULIP_PATH)

subprocess.check_call(['node', 'node_modules/puppeteer/install.js'])

os.makedirs('var/puppeteer', exist_ok=True)

for f in glob.glob('var/puppeteer/puppeteer-failure*.png'):
    os.remove(f)

def run_tests(files: Iterable[str], external_host: str) -> None:
    test_dir = os.path.join(ZULIP_PATH, 'frontend_tests/puppeteer_tests')
    test_files = []
    for file in files:
        for file_name in os.listdir(test_dir):
            if file_name.startswith(file):
                file = file_name
                break
        if not os.path.exists(file):
            file = os.path.join(test_dir, file)
        test_files.append(os.path.abspath(file))

    if not test_files:
        test_files = sorted(glob.glob(os.path.join(test_dir, '*.js')))

    def run_tests() -> int:
        ret = 1
        for test_file in test_files:
            test_name = os.path.basename(test_file)
            cmd = ["node"] + [test_file]
            print("\n\n===================== %s\nRunning %s\n\n" % (test_name, " ".join(map(shlex.quote, cmd))), flush=True)
            ret = subprocess.call(cmd)
            if ret != 0:
                return ret
        return 0

    with test_server_running(False, external_host):
        # Important: do this next call inside the `with` block, when Django
        #            will be pointing at the test database.
        subprocess.check_call('tools/setup/generate-test-credentials')
        if options.interactive:
            response = input('Press Enter to run tests, "q" to quit: ')
            ret = 1
            while response != 'q':
                ret = run_tests()
                if ret != 0:
                    response = input('Tests failed. Press Enter to re-run tests, "q" to quit: ')
        else:
            ret = 1
            ret = run_tests()
    if ret != 0:
        sys.exit(ret)

external_host = "zulipdev.com:9981"
run_tests(options.tests, external_host)
sys.exit(0)