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#!/usr/bin/env python
# -*- coding: UTF-8 -*-

import webapp2
from StringIO import StringIO
from datetime import datetime, timedelta

from ntuceiba import NtuCeibaEvent
from ntuceiba.parse import ntuceiba_parser
from ntuceiba.toxml import ntuceiba_toxml
from access import CalEvent

from google.appengine.api import users
from google.appengine.ext import db

def ntuceiba_merge(listobj, useremail, allow_overwrite):
    for entry in listobj:
        if entry.duedate == None:
            continue

        data = db.GqlQuery("SELECT * FROM CalEvent "
                "WHERE ANCESTOR IS :1 AND "
                "begin >= :2 AND "
                "begin < :3 "
                "ORDER BY begin",
                db.Key.from_path('user', useremail), 
                entry.duedate,
                entry.duedate + timedelta(0, 3600, 0))

        for matched in data.run():
            if matched.datafrom == "ntuceiba" and matched.title.find(entry.title) >= 0:
                if allow_overwrite:
                    entry.key = str(matched.key())
                else:
                    entry.enabled = False
                break

def ntuceiba_gaeds_update(listobj, useremail, fakencobj, titleadd):
    listlen = len(listobj)
    createlen = 0
    updatelen = 0
    for entry in listobj:
        if entry.enabled:
            contstr = ""
            if entry.key != None:
                calevent = db.get(db.Key(entry.key))
                updatelen = updatelen + 1
            else:
                calevent = CalEvent(
                    db.Key.from_path('user', useremail),
                    # 我在亂打...... 這個不重要
                    title="臺大 CEIBA 匯入工具" , 
                    begin=datetime(1, 1, 1), datafrom="ntuceiba")
                createlen = createlen + 1

            if titleadd == None or titleadd == "":
                calevent.title = entry.title
            else:
                calevent.title = "[" + titleadd + "]" + " " + entry.title
            
            calevent.begin = entry.duedate
            calevent.icon = 0
            calevent.remind = 30
            calevent.datafrom = "ntuceiba"
            
            if fakencobj.title:
                contstr = contstr + u"名稱:" + entry.title + "\n"
            if fakencobj.member:
                contstr = contstr + u"成員:" + entry.member + "\n"
            if fakencobj.method:
                contstr = contstr + u"繳交方法:" + entry.method + "\n"
            if fakencobj.percent:
                contstr = contstr + u"成績比重:" + entry.percent + "\n"
            if fakencobj.duedate:
                contstr = contstr + u"繳交期限:" + str(entry.duedate) + "\n"
            if fakencobj.late:
                if entry.late:
                    contstr = contstr + u"逾期繳交:可以\n" 
                else:
                    contstr = contstr + u"逾期繳交:不可以\n" 
            if fakencobj.subdate:
                contstr = contstr + u"繳交日期:" + entry.subdate + "\n"
            if fakencobj.comment:
                contstr = contstr + u"作業評語:" + entry.comment + "\n"

            calevent.content = contstr
            calevent.put()
    
    return (listlen, createlen, updatelen)


class NtuCeibaImport(webapp2.RedirectHandler):
    def get(self):
        return
    def post(self):
        guserid = users.get_current_user()
        if not guserid:
            return

        merge = self.request.get('merge')
        viewonly = self.request.get('viewonly')
        overwrite = self.request.get('overwrite')
        htmlfile = self.request.get('file')
        useremail = guserid.email()
        htmlfile = StringIO(htmlfile)
        htmlfile.readline()
        cblist = ntuceiba_parser(htmlfile)

        enflag = NtuCeibaEvent()
        enflag.flagize()
        if self.request.get('addtitle') != "":
            enflag.title = True
        if self.request.get('addmember') != "":
            enflag.member = True
        if self.request.get('addmethod') != "":
            enflag.method = True
        if self.request.get('addpercent') != "":
            enflag.percent = True
        if self.request.get('adddue') != "":
            enflag.duedate = True
        if self.request.get('addlate') != "":
            enflag.late = True
        if self.request.get('addsub') != "":
            enflag.subdate = True
        if self.request.get('addcomment') != "":
            enflag.comment = True


        if merge != "":
            if overwrite != "":
                ntuceiba_merge(cblist, useremail, True)
            else:
                ntuceiba_merge(cblist, useremail, False)

        if viewonly != "":
            self.response.headers['Content-Type'] = 'text/xml; charset=UTF-8'
            self.response.out.write(ntuceiba_toxml(cblist))
        else:
            resrepo = ntuceiba_gaeds_update(cblist, useremail, enflag, None)
            self.response.headers['Content-Type'] = 'text/plain'
            self.response.out.write(
                str(resrepo[0]) + " " + 
                str(resrepo[1]) + " " +
                str(resrepo[2]))
        

app = webapp2.WSGIApplication([('/access/imnc', NtuCeibaImport)])