#!/usr/bin/env python

"""
Archive extract script with sub-directory creation
"""

# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

import io
import re
import sys

import json
from os import walk
import PIL
from PIL import Image

class AtlasFrame:
    filename = None
    xy = None
    size = None
    rotate = False
    orig = None
    offset = None

class Atlas:
    image = None
    format = None
    size = None
    frames = []


def serialize(obj):
    return (obj.__class__, obj.__dict__)

def create_atlas(path):
    f = []
    for (dirpath, dirnames, filenames) in walk(path):
        f.extend(filenames)
        break

    for filename in f:
        print(filename)

    print(f)
    atlas = Atlas()
    atlas.image = 'atlas.png'
    atlas.format = 'png'
    atlas.size = [10, 10]

    return atlas

def main(dir):
    print(dir)

    atlas = create_atlas(dir)

    json_str = createPhaserJson(atlas)

    json_filename= 'assets.json'

    with io.open(json_filename, 'w', encoding='utf8') as outfile:
        outfile.write(str(json_str))
    outfile.closed

    print('wrote '+ json_filename )

def createPhaserJson(atlas):
    data = {
        'frames': [],
        'meta': {
            'app': 'libgdx',
            'version': 'latest',
            'image': atlas.image,
            'format': atlas.format,
            'size': { 'w': atlas.size[0], 'h': atlas.size[1] },
            'scale': 1
        }
    }

    for frame in atlas.frames:
        framedata = { 
            'filename': frame.filename,
            'frame': { 'x': frame.xy[0], 'y': frame.xy[1], 'w': frame.size[0], 'h': frame.size[1]  },
            'rotated': frame.rotate == 'true',
            'trimmed': False,
            'spriteSourceSize': { 'x': frame.offset[0], 'y': frame.offset[1], 'w': frame.orig[0], 'h': frame.orig[1] },
            'sourceSize': { 'w': frame.orig[0], 'h': frame.orig[1] }
        }

        data['frames'].append(framedata)

    json_str = json.dumps(data, indent=4, sort_keys=False, separators=(',', ': '), ensure_ascii=False)
    return json_str

if __name__ == "__main__":
    main(sys.argv[1])