"""Publish only source-compatible triangular haunch contact definitions."""
import argparse,copy,json,os,sys,tempfile,time
from pathlib import Path
root=Path(__file__).resolve().parents[1]
sys.path.insert(0,str(root/'src/backend' if (root/'src/backend').is_dir() else root))


def run(target):
    import server
    from haunch_contact_surface import bind
    server.require_modeling_rules();raw=target.read_bytes();job=json.loads(raw)
    if job.get('status')=='running':raise ValueError('active job preserved')
    plan=job['result'];before=copy.deepcopy(plan);audit=bind(plan['concrete_components'],server.component_surface_z_at_xy)
    if not audit:
        print(json.dumps({'saved':False,'job':target.stem,'contacts':[],
            'reason':'no matching shared contact; original geometry preserved'}))
        return
    for old,new in zip(before['concrete_components'],plan['concrete_components']):
        assert {k:v for k,v in old.items() if k!='shared_contact_surface'}=={k:v for k,v in new.items() if k!='shared_contact_surface'}
    assert before['rebar_groups']==plan['rebar_groups']
    plan['haunchContactAudit']={'contacts':audit,'vertices_and_rebar_preserved':True}
    plan.setdefault('drawingEvidence',{}).setdefault('preview_geometry',{})['concrete_components']=copy.deepcopy(plan['concrete_components'])
    job.update(result=plan,partialResult={'progressivePlan':copy.deepcopy(plan)},geometryRevision=time.time_ns())
    backup=target.with_name(target.stem+f'.before-haunch-contact-{time.time_ns()}.json')
    if target.read_bytes()!=raw:raise ValueError('concurrent update')
    with backup.open('xb') as f:f.write(raw)
    with tempfile.NamedTemporaryFile(mode='w',dir=target.parent,delete=False) as f:
        json.dump(job,f,ensure_ascii=False,allow_nan=False);temporary=f.name
    if target.read_bytes()!=raw:raise ValueError('concurrent update before publication')
    os.replace(temporary,target);print(json.dumps({'job':target.stem,'contacts':audit,'backup':str(backup)},ensure_ascii=False))


if __name__=='__main__':
    parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('job',type=Path)
    run(parser.parse_args().job)