# Copyright: Damien Elmes <anki@ichi2.net>
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html

from aqt.qt import *
import urllib, urllib2, os, sys, time, httplib
import anki, anki.utils, anki.lang, anki.stats
import aqt
import platform
from aqt.utils import openLink
from anki.utils import json, isWin, isMac
from aqt.utils import showText

class LatestVersionFinder(QThread):

    def __init__(self, main):
        QThread.__init__(self)
        self.main = main
        self.config = main.pm.meta

    def _data(self):
        # we may get an interrupted system call, so try this in a loop
        n = 0
        theos = "unknown"
        while n < 100:
            n += 1
            try:
                system = platform.system()
                if isMac:
                    theos = "mac:%s" % (platform.mac_ver()[0])
                elif isWin:
                    theos = "win:%s" % (platform.win32_ver()[0])
                elif system == "Linux":
                    dist = platform.dist()
                    theos = "lin:%s:%s" % (dist[0], dist[1])
                else:
                    theos = system
                break
            except:
                continue
        d = {"ver": aqt.appVersion,
             "os": theos,
             "id": self.config['id'],
             "lm": self.config['lastMsg'],
             "crt": self.config['created']}
        return d

    def run(self):
        if not self.config['updates']:
            return
        d = self._data()
        d['proto'] = 1
        d = urllib.urlencode(d)
        try:
            f = urllib2.urlopen(aqt.appUpdate, d)
            resp = f.read()
            if not resp:
                return
            resp = json.loads(resp)
        except:
            # behind proxy, corrupt message, etc
            return
        print resp
        if resp['msg']:
            self.emit(SIGNAL("newMsg"), resp)
        if resp['ver']:
            self.emit(SIGNAL("newVerAvail"), resp['ver'])
        diff = resp['time'] - time.time()
        if abs(diff) > 300:
            self.emit(SIGNAL("clockIsOff"))

def askAndUpdate(mw, ver):
    baseStr = (
        _('''<h1>Anki Updated</h1>Anki %s has been released.<br><br>''') %
        ver)
    msg = QMessageBox(mw)
    msg.setStandardButtons(QMessageBox.Yes | QMessageBox.No)
    msg.setIcon(QMessageBox.Information)
    msg.setText(baseStr + _("Would you like to download it now?"))
    button = QPushButton(_("Ignore this update"))
    msg.addButton(button, QMessageBox.RejectRole)
    msg.setDefaultButton(QMessageBox.Yes)
    ret = msg.exec_()
    if msg.clickedButton() == button:
        # ignore this update
        mw.pm.meta['suppressUpdate'] = ver
    elif ret == QMessageBox.Yes:
        openLink(aqt.appWebsite)

def showMessages(mw, data):
    showText(data['msg'], parent=mw, type="html")
    mw.pm.meta['lastMsg'] = data['msgId']