"""Re-read body tie sections with the common generator; preserve other objects."""
import argparse
import copy
import json
import os
from pathlib import Path
import sys
import tempfile
import time
root=Path(__file__).resolve().parents[1]
sys.path.insert(0,str(root/'src/backend'if (root/'src/backend').is_dir()else root))

def run(job_id,apply=False):
    import server
    from cad_rebar_recipe import load_sources
    from body_source_tie import build_reference_review
    server.require_modeling_rules()
    if len(job_id)!=24 or any(c not in '0123456789abcdef'for c in job_id):raise ValueError('invalid job')
    path=Path('/tmp/drawing-model-studio-8097-jobs')/(job_id+'.json');raw=path.read_bytes();job=json.loads(raw)
    if job.get('status')=='running':raise ValueError('active job')
    plan=job['result'];sources=load_sources(job['sourceContext']['analysis'])
    old={g['id']:g for g in plan['rebar_groups']if g.get('source_body_tie_binding')}
    rules={json.dumps(g['source_body_tie_binding']['reference_rule'],sort_keys=True)for g in old.values()}
    if len(rules)!=1:raise ValueError('no unique previously authorized repetition rule')
    errors=[];groups=build_reference_review(plan,sources,json.loads(next(iter(rules))),authorized=True,
        inventory=plan['drawingEvidence']['cad_fabrication_inventory'],failures=errors)
    replacements={};rows=[]
    for g in groups:
        prior=old.get(g['id'])
        if prior is None:continue
        n=len(g['source_body_tie_binding']['section']['stations']);before=len(prior['source_body_tie_binding']['section']['stations'])
        material=g['fabrication_measurement']['schedule_count']
        row={'id':g['id'],'block':g['rebar_block'],'mark':g['mark'],'lanes_before':before,'lanes_after':n,
             'count_before':prior['count'],'count_after':g['count'],'drawing_count':material,'applied':False}
        rows.append(row)
        if n==before and g['count']==prior['count']:continue
        # Counts validate the repair; they never drive the generated positions.
        if abs(g['count']-material)>=abs(prior['count']-material):row['reason']='quantity did not improve';continue
        check=g['placement_geometry_check'];row['outside_samples']=check['tube_outside_samples']
        if check['tube_outside_samples'] or not g['fabrication_measurement']['fixed_length_pass']:
            row['reason']='geometry validation failed';continue
        updated=copy.deepcopy(prior);updated.update(g)
        # Keep existing display authorization policy, never manufacture approval.
        updated.pop('engineer_review_confirmation',None)
        for k in ('source_review_authorization','installation_line_review','placement_status','display_authorized'):
            if k in prior:updated[k]=copy.deepcopy(prior[k])
        replacements[g['id']]=updated;row['applied']=apply
    audit={'rows':rows,'errors':errors,'full_model_approved':False}
    if apply and replacements:
        result=copy.deepcopy(plan);result['rebar_groups']=[replacements.get(g.get('id'),g)for g in result['rebar_groups']]
        preview=result.get('drawingEvidence',{}).get('preview_geometry')
        if isinstance(preview,dict):preview['rebar_groups']=copy.deepcopy(result['rebar_groups'])
        result['bodyTieSectionReplay']=audit
        assert result['concrete_components']==plan['concrete_components']
        job.update(result=result,geometryRevision=time.time_ns())
        if path.read_bytes()!=raw:raise ValueError('job changed during source replay')
        path.with_name(path.stem+'.before-tie-section-'+str(time.time_ns())+'.json').write_bytes(raw)
        with tempfile.NamedTemporaryFile(mode='w',dir=path.parent,delete=False,encoding='utf8')as out:
            json.dump(job,out,ensure_ascii=False,allow_nan=False);temporary=out.name
        os.replace(temporary,path.resolve())
    return audit

if __name__=='__main__':
    parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('job');parser.add_argument('--apply',action='store_true')
    args=parser.parse_args();print(json.dumps(run(args.job,args.apply),ensure_ascii=False,indent=2),flush=True)