#!/usr/bin/python
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
root_dir = os.path.normpath(os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..')))

#using virtualenv's activate_this.py to reorder sys.path
activate_this = os.path.join(root_dir, 'bin', 'activate_this.py')
execfile(activate_this, dict(__file__=activate_this))

from __future__ import division
import Image
import ImageDraw
from optparse import OptionParser
import os
from ox.image import drawText, wrapText
import sys


static_root = os.path.join(os.path.dirname(__file__), '..', '..', 'static')

def render_list_icon(frames, icon):
    icon_width = 256
    icon_height = 256
    icon_image = Image.new('RGBA', (icon_width, icon_height))
    frame_height = icon_height / 4
    frame_ratio = 4 / 3
    frame_width = int(round(frame_height * frame_ratio))
    for i, frame in enumerate(frames):
        frame_image = Image.open(frame)
        frame_image_ratio = frame_image.size[0] / frame_image.size[1]
        frame_width_ = frame_width + (1 if i % 2 == 1 else 0)
        if frame_ratio < frame_image_ratio:
            frame_image = frame_image.resize((int(frame_height * frame_image_ratio), frame_height), Image.ANTIALIAS)
            left = int((frame_image.size[0] - frame_width_) / 2)
            frame_image = frame_image.crop((left, 0, left + frame_width_, frame_height))
        else:
            frame_image = frame_image.resize((frame_width_, int(frame_width_ / frame_image_ratio)), Image.ANTIALIAS)
            top = int((frame_image.size[1] - frame_height) / 2)
            frame_image = frame_image.crop((0, top, frame_width_, top + frame_height))
        icon_image.paste(frame_image, (i % 3 * frame_width + (1 if i % 2 == 2 else 0), int(i / 3) * frame_height))
    mask_image = Image.open(ox.path.join(static_root, 'png', 'icon.mask.png'))
    mask_image = mask_image.resize((icon_width, icon_height))
    icon_image.putalpha(mask_image)
    icon_image.save(icon)

def main():
    parser = OptionParser()
    parser.add_option('-f', '--frames', dest='frames', help='Poster frames (image files to be read)', default='')
    parser.add_option('-i', '--icon', dest='icon', help='Icon (image file to be written)')
    (options, args) = parser.parse_args()
    if options.icon == None:
        parser.print_help()
        sys.exit()

    frames = options.frames.replace(', ', ',').split(',')

    render_list_icon(frames, opt.icon)

if __name__ == "__main__":
    main()