from datetime import datetime, timedelta, time
import datetime as Datetime

from django.db import models
import urllib.request
import ssl

from icalendar import Calendar, Event
import recurring_ical_events

# Create your models here.
class cls_caldav():
    url = ""
    data = None
    items = []
    day = []
    night = []

    def __init__(self, url=""):
        self.url = url

    def clear_data(self):
        self.data = None
        self.items = []
        self.day = []
        self.night = []

    def get_caldav_data(self,periode=1):
        ctx = ssl.create_default_context()
        ctx.check_hostname = False
        ctx.verify_mode = ssl.CERT_NONE

        self.clear_data()

        o_url = urllib.request.urlopen(self.url, context=ctx)
        self.data = o_url.read()
        o_url.close()

        now = f"{datetime.now().day}.{datetime.now().month}.{datetime.now().year}"
        tomorow = datetime.now() + timedelta(days=1)
        today = (datetime.now().year,datetime.now().month,datetime.now().day)

        events = None
        if periode == 1:
            events = recurring_ical_events.of(Calendar.from_ical(self.data)).at(today)
        elif periode == 2:
            events = recurring_ical_events.of(Calendar.from_ical(self.data)).between(today,tomorow)

        for event in events:
            item = _caldav_item()
            item.name = event["SUMMARY"]
            if "-" in item.name:
                arr = item.name.split("-")
                item.key = arr[0]
                item.name = arr[1]

            if "DESCRIPTION" in event.keys():
                item.desc = event["DESCRIPTION"]
            if "*done*" in item.desc:
                item.done = True
            item.dtstart = event["DTSTART"].dt.strftime("%d.%m.%Y %H:%M")
            item.dtend = event["DTEND"].dt.strftime("%d.%m.%Y %H:%M")

            item.format_str_date()
            self.items.append(item)


            start = datetime.strptime(item.dtstart,"%d.%m.%Y %H:%M")

            if type(start) is Datetime.date:
                start = datetime.combine(start, datetime.min.time())
                print("convert Date to datetime")
            print(start)
            if start < datetime.combine(datetime.today(), time(19,0)):
                self.day.append(item)
            if start >= datetime.combine(datetime.today(), time(19,0)):
                self.night.append(item)
            print(self.day)
            print(self.night)

        print(f"len={len(self.items)}")
        return self.data

class _caldav_item():
    key = ""
    name = ""
    desc = ""
    dtstart = None
    str_start_date = ""
    str_start_time = ""
    dtend = None
    str_end_date = ""
    str_end_time = ""
    dtstamp = None
    done = False

    def format_str_date(self):
        self.str_start_date = datetime.strptime(self.dtstart,"%d.%m.%Y %H:%M").strftime("%d.%m.%Y")
        self.str_start_time = datetime.strptime(self.dtstart, "%d.%m.%Y %H:%M").strftime("%H:%M")
        self.str_end_date = datetime.strptime(self.dtend,"%d.%m.%Y %H:%M").strftime("%d.%m.%Y")
        self.str_end_time = datetime.strptime(self.dtend, "%d.%m.%Y %H:%M").strftime("%H:%M")