#!/usr/bin/python
# -*- coding:utf-8 -*-

import epd2in13
import json
import time
import requests
from datetime import date
from datetime import datetime
from PIL import Image,ImageDraw,ImageFont

font_size = 12

epd = epd2in13.EPD()
epd.init(epd.FULL_UPDATE)

while 1:
    epd.Clear(0xFF)
    image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)  # 255: clear the frame
    draw = ImageDraw.Draw(image)
    font = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-microhei.ttc', font_size)

    resp = json.load(open("everything.schedule.json"))
    days = resp['schedule']['conference']['days']
    conferences = []
    for day in days:
        for room in day['rooms']:
            for conference in day['rooms'][room]:
                conf_date = datetime.strptime(conference['date'].split('+')[0], '%Y-%m-%dT%H:%M:%S')
                offset = conf_date - datetime.now()
                if offset.seconds / 3600 < 3 and offset.seconds/3600 > 0 and offset.days==0:
                    conferences.append(conference)

    sorted_list = sorted(conferences, key=lambda i: i['date'])

    for i in range(0, 9, 2):
        draw.text((0, font_size * i + 2), sorted_list[i]['start'] + ' - ' + sorted_list[i]['room'] + ':', font=font, fill=0)
        draw.text((50, font_size * (i + 1) + 2), sorted_list[i]['title'], font=font, fill=0)
    epd.display(epd.getbuffer(image))

    time.sleep(300)
epd.sleep()