import datetime
import os
from collections import defaultdict
from PIL import ImageFont, Image
import inkyphat

FAKE = True

text = Image.open("numbers.png")
text_mask = inkyphat.create_mask(text, [inkyphat.WHITE])

def print_digit(position, digit):
    """Print a single digit using the sprite sheet.
    Each number is grabbed from the masked sprite sheet,
    and then used as a mask to paste the desired color
    onto Inky pHATs image buffer.
    """
    o_x, o_y = position
    
    num_margin = 2
    num_width = 6
    num_height = 7

    s_x = num_margin + (digit * (num_width + num_margin))

    sprite = text_mask.crop((s_x, 0, s_x + num_width, num_height))

    inkyphat.paste(inkyphat.BLACK, (o_x, o_y), sprite)

def print_number(position, number):
    """Prints a number using the sprite sheet."""

    for digit in str(number):
        print_digit(position, int(digit))
        position = (position[0] + 8, position[1])

def main():
    pages = {'2014': 7375, '2015': 23508, '2016': 17696, '2017': 19706, '2018': 9388}
    books = {"2018":33,"2017":64,"2016":47,"2015":75,"2014":19}
    if not FAKE:
        pages, books = get_goodreads_stats()
    stats = get_stats(pages, books)
    draw(stats)


def get_goodreads_stats():
    from selenium import webdriver
    payload = {
      'email': os.environ.get('EMAIL'),
      'password': os.environ.get('PASSW'),
    }
    
    LOGIN_URL= 'https://www.goodreads.com/user/sign_in'
    
    driver = webdriver.PhantomJS()
    driver.get(LOGIN_URL)
    
    username = driver.find_element_by_id('user_email')
    password = driver.find_element_by_id('user_password')
    
    username.send_keys(payload['email'])
    password.send_keys(payload['password'])
    
    form = driver.find_element_by_name('sign_in')
    form.submit()
    
    driver.get('https://www.goodreads.com/review/stats/24381583#pages')
    pages = driver.execute_script('return page_stats')
    books = driver.execute_script('return year_stats')
    return pages, books

def get_stats(pages, books):
    size = 5

    coords = defaultdict(list)

    columns = ["year", "books", "pages"]

    start_x, start_y = 12, 25
    column_offset = [0,78,140]
    year_offset = 15
    _stats = []

    for idy, year in enumerate(sorted(pages.keys(), key=lambda yr: -int(yr))):
        row = {}
        col_data = {'year':year, 'pages': pages[year], 'books': books[year]}
        y = start_y + (year_offset * idy)
        for idx, column in enumerate(columns):
            x = start_x + column_offset[idx]
            row[column] = (col_data[column], (x,y))
        _stats.append(row)
    return _stats

def draw(stats):
    inkyphat.set_colour('red')
    inkyphat.set_border(inkyphat.WHITE)
    inkyphat.set_image("./background.png")

    draw_row('year', stats)
    draw_row('books', stats)
    draw_row('pages', stats)

    inkyphat.show()

def draw_row(row, stats):
    for year in stats:
        count = year[row][0]
        x,y = year[row][1]
        print_number((x,y), count)

if __name__ == "__main__":
    main()