import shutil
import json
import os
import requests
import urllib3
import urllib2
import ssl

urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

with open("config.json", mode="r") as config_file:
    config = json.load(config_file)


def get_md5sum(md5_url):
    r = requests.get(md5_url, verify=False, stream=True)
    return str(r.text.split(" ")[0])


def download_file(url):
    ctx = ssl.create_default_context()
    ctx.check_hostname = False
    ctx.verify_mode = ssl.CERT_NONE

    file_name = url.split('/')[-1]
    u = urllib2.urlopen(url, context=ctx)
    f = open(file_name, 'wb')
    meta = u.info()
    file_size = int(meta.getheaders("Content-Length")[0])
    print "Downloading: %s Bytes: %s" % (file_name, file_size)

    file_size_dl = 0
    block_sz = 8192
    while True:
        file_buffer = u.read(block_sz)
        if not file_buffer:
            break

        file_size_dl += len(file_buffer)
        f.write(file_buffer)
        status = r"%10d  [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
        status += chr(8) * (len(status) + 1)
        print status,

    f.close()


online_version = get_md5sum(config["arc_dps"]["md5path"])
arc_dps_url = config["arc_dps"]["download_path"]
buildtemplates_url = config["arc_dps_buildtemplates"]["download_path"]
if config["arc_dps"]["current_version"] != online_version:
    arc_dps_file_name = arc_dps_url.rsplit('/', 1)[-1]
    buildtemplates_file_name = buildtemplates_url.rsplit('/', 1)[-1]
    download_file(arc_dps_url)
    download_file(buildtemplates_url)
    shutil.move(arc_dps_file_name, os.path.join(config["guildwars2_path"], "bin64", arc_dps_file_name))
    shutil.move(buildtemplates_file_name, os.path.join(config["guildwars2_path"], "bin64", buildtemplates_file_name))

    config["arc_dps"]["current_version"] = online_version
    with open("config.json", mode="w") as config_file:
        config_file = (json.dump(config, config_file, indent=2))