#!/usr/bin/env python

import argparse
import code # for code.interact(local=dict(globals(), **locals()) ) debugging
import glob
import json
import os
import re
import shutil
import tempfile
from typing import Dict, List, Tuple # for mypy

######################
# programname
#
# What the program is for

def main():
	cfg = handle_args()
	orig_metadata = jload(os.path.join(cfg.src, 'manifest.json'))

	with tempfile.TemporaryDirectory() as td:
		# In this context manager, we made a directory into which we'll place everything before we zip it
		shutil.copy(src=os.path.join(cfg.src, 'pack_icon.png'), dst=(os.path.join(td, 'pack.png')))
		with open(os.path.join(td, 'pack.mcmeta'), 'w') as mcmf:
			data =	{
				"pack": {
					"pack_format": cfg.pack_ver,
					"description": orig_metadata['header']['description']
					}
				}
			json.dump(data, mcmf)
		os.makedirs(os.path.join(td, 'assets', 'minecraft', 'textures', 'block'))
		for btfile in os.listdir(os.path.join(cfg.src, 'textures', 'blocks')):
			if '_mer' in btfile:
				continue
			if 'texture_set' in btfile:
				continue
			if not os.path.isfile(os.path.join(cfg.src, 'textures', 'blocks', btfile)):
				continue # Embedded dir?
			print(f"Processing texture {btfile}")
			targfn = btfile
			# TODO add more specific rules for remapping names here.
			if btfile.startswith('wool_colored_'):
				targfn = re.sub('wool_colored_(.*).png', '\\1_wool.png', btfile)
			# We may also bail for textures that are too different in format (e.g. lava flow), or figure out how to convert them
			shutil.copy(src=os.path.join(cfg.src, 'textures', 'blocks', btfile), dst=os.path.join(td, 'assets', 'minecraft', 'textures', 'block', targfn))
		shutil.make_archive(f"{orig_metadata['header']['name']}-{orig_metadata['header']['version'][0]}.{orig_metadata['header']['version'][1]}.{orig_metadata['header']['version'][2]}", 'zip', td)


def handle_args():
	parser = argparse.ArgumentParser(description="This does a thing")
	parser.add_argument("--src",	default='dlight', type=str,	help="source dir for bedrock pack")
	parser.add_argument("--pack_ver",	default=6, type=int,	help="Pack version")
	ret = parser.parse_args()
	return ret

#####

def jload(fn:str):
	with open(fn, 'r') as fh:
		ret = json.load(fh)
	return ret


#####
main()