#!/usr/bin/env python3

# Copyright (c) 2020 Elliot Nunn

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.


import argparse
import macresources


parser = argparse.ArgumentParser(description='''
    Sort the resources in a Rez file (for diffing).
''')

parser.add_argument('src', nargs='*', help='Rez files')
parser.add_argument('--like', action='store', help='Rez file supplying the sort order')
args = parser.parse_args()

if args.like is not None:
    args.like = macresources.parse_rez_code(open(args.like, 'rb').read())
    args.like = {(r.type, r.id): idx for (idx, r) in enumerate(args.like)}
    # print(args.like)

def sortkey(resource):
    if args.like:
        for tryrange in [[resource.id], reversed(range(resource.id)), range(resource.id, 0x8000)]:
            for parentid in tryrange:
                parentidx = args.like.get((resource.type, parentid), None)
                if parentidx is not None:
                    # print('found one', (0, parentidx, resource.id))
                    return (0, parentidx, resource.id)

    return (1, resource.type.decode('mac_roman'), resource.id)

for srcfile in args.src:
    with open(srcfile, 'r+b') as f:
        raw = f.read()
        resources = list(macresources.parse_rez_code(raw))
        resources.sort(key=sortkey)
        f.seek(0)
        f.truncate(0)
        f.write(macresources.make_rez_code(resources, ascii_clean=True))