"""Reuse the parser's resource boundary, geometry model and SVG serializer."""
from . import parse_task  # Sets the same subprocess resource limits, without running it.
import json
import sys
from pathlib import Path
from .documents import parse_document
from .diff import compare_documents
from .parser.record_decoder import ParseError
from .render import svg_document


def run():
    source,destination,_,identifier=sys.argv[1:]
    dest=Path(destination)
    try:
        manifest=json.loads(Path(source).read_text())
        old=parse_document((dest/'old.SchDoc').read_bytes(),manifest['old_filename'],identifier+'-old',allow_empty=True)
        new=parse_document((dest/'new.SchDoc').read_bytes(),manifest['new_filename'],identifier+'-new',allow_empty=True)
        report=compare_documents(old,new)
        (dest/'data.json').write_text(json.dumps(report,ensure_ascii=False),encoding='utf-8')
        for side,doc in [('old',old),('new',new)]:
            annotations={c[f'{side}_id']:{'id':c['id'],'status':c['status'],'bounds':c[f'{side}_bounds']}
                         for c in report['changes'] if c[f'{side}_id'] is not None}
            (dest/f'{side}.svg').write_bytes(svg_document(doc,annotations,id_prefix=side+'-'))
        result={'ok':True,'summary':{'summary':report['summary'],'total_changed':report['total_changed']}}
    except (ParseError,ValueError) as exc:
        result={'ok':False,'code':'invalid_schematic','message':str(exc)[:500]}
    except Exception:
        result={'ok':False,'code':'comparison_error','message':'The schematic comparison could not be completed'}
    (dest/'result.json').write_text(json.dumps(result),encoding='utf-8')

if __name__=='__main__':run()