#!/usr/bin/python3
# -*- coding: utf-8 -*-
import os,sys
from xml.etree import ElementTree
from PIL import Image
import logging

DEBUG = False

# 设置默认的level为DEBUG
# 设置log的格式
logging.basicConfig(
    level=logging.INFO if DEBUG else logging.ERROR,
    format="[%(asctime)s] %(name)s:%(levelname)s: %(message)s"
)


def tree_to_dict(tree):
    d = {}
    for index, item in enumerate(tree):
        if item.tag == 'key':
            if tree[index+1].tag == 'string':
                d[item.text] = tree[index + 1].text
            elif tree[index + 1].tag == 'true':
                d[item.text] = True
            elif tree[index + 1].tag == 'false':
                d[item.text] = False
            elif tree[index+1].tag == 'dict':
                d[item.text] = tree_to_dict(tree[index+1])
    return d

def gen_png_from_plist(plist_filename, png_filename):
    file_path = plist_filename.replace('.plist', '')
    big_image = Image.open(png_filename)
    root = ElementTree.fromstring(open(plist_filename, 'r').read())
    plist_dict = tree_to_dict(root[0])
    to_list = lambda x: x.replace('{','').replace('}','').split(',')
    for k,v in plist_dict['frames'].items():

        if(DEBUG and k != "coin_4_p.png"):
            continue
        logging.info(v)

        rectlist = to_list(v['frame'])
        logging.info("rectlist: %s" % rectlist)
        width = int( rectlist[3] if v['rotated'] else rectlist[2] )
        height = int( rectlist[2] if v['rotated'] else rectlist[3] )
        logging.info("( %s , %s )" % (width, height))
        offset = [ abs(int(x)) for x in to_list(v['offset'])]
        logging.info("offset : %s -> %s " % (v['offset'], offset))
        sizelist = [ int(x) for x in to_list(v['sourceSize'])]
        logging.info("size: %s"% sizelist)
        logging.info("rotated: %s" % v['rotated'])
        box=(
            int(rectlist[0]),
            int(rectlist[1]),
            int(rectlist[0]) + width,
            int(rectlist[1]) + height,
        )

        rect_on_big = big_image.crop(box)

        logging.info(rect_on_big)
        if(DEBUG):
            result_image1 = Image.new('RGBA', [width, height], (0,0,0,0))
            result_image1.paste(rect_on_big, (0, 0, width, height))


        result_image = Image.new('RGBA', sizelist, (0,0,0,0))
        if v['rotated']:
            rect_on_big = rect_on_big.rotate(90,expand=1)
            parse_pos=(
                int((sizelist[0] - height)/2),
                int((sizelist[1] - width) /2)
            )
        else:
            parse_pos=(
                int((sizelist[1] - height)/2),
                int((sizelist[0] - width) /2)
            )
        logging.info(parse_pos)
        logging.info(rect_on_big)
        result_image.paste(rect_on_big, parse_pos)

        if not os.path.isdir(file_path):
            os.mkdir(file_path)
        outfile = (file_path+'/' + k).replace('gift_', '')
        print(outfile, "generated")
        outpath = file_path +'/'+ outfile.split('/')[-1]
        print(outpath,"split")
        result_image.save(outpath)
        if(DEBUG):
            outpath1 = file_path +'/org_'+ outfile.split('/')[-1]
            print(outpath1,"split")
            result_image1.save(outpath1)


if __name__ == '__main__':
    filename = sys.argv[1]
    plist_filename = filename + '.plist'
    png_filename = filename + '.png'
    if (os.path.exists(plist_filename) and os.path.exists(png_filename)):
        gen_png_from_plist( plist_filename, png_filename )
    else:
        print("make sure you have boith plist and png files in the same directory")