#!/usr/bin/env python3
import json, subprocess, sys, time, re, unicodedata
from pathlib import Path
PROJECT = Path('/data/video-pipeline/Youtube-Video-Maker/Project/05062026-003-Hai-Ba-Trung')
GEN_SCRIPT = Path('/home/hermes/.hermes/skills/media/gen-img-gpt/scripts/gen_img_gpt.py')
PLAN = PROJECT / 'script/character_reference_plan.json'
LOG = PROJECT / 'logs/step05_character_refs_run.log'
MANIFEST = PROJECT / 'logs/step05_character_refs_manifest.json'
BASE_NEG = 'No modern objects, no fantasy armor, no Qing or Ming dynasty drift, no European medieval armor, no Japanese samurai look, no text labels, no watermark, no vertical portrait canvas, no square canvas.'
STYLE = '16:9 horizontal landscape character reference concept sheet on warm antique parchment, 1st-century Giao Chỉ, Mê Linh and Eastern Han period, Vietnamese co phong historical feeling, sepia brown ochre charcoal ink wash, controlled face/full-body/costume details for identity locking, clean negative space, historically grounded.'
REQUIRED = set()
def slug(s):
    s=unicodedata.normalize('NFD',s); s=''.join(c for c in s if unicodedata.category(c)!='Mn'); s=s.replace('đ','d').replace('Đ','D')
    return re.sub(r'[^a-zA-Z0-9]+','-',s).strip('-').lower()
def log(msg):
    line=time.strftime('%Y-%m-%d %H:%M:%S ')+msg; print(line, flush=True); LOG.parent.mkdir(parents=True, exist_ok=True)
    with LOG.open('a',encoding='utf-8') as f: f.write(line+'\n')
def build_plan():
    bible=json.loads((PROJECT/'script/character_bible.json').read_text(encoding='utf-8'))
    refs=[]
    for c in bible['characters']:
        name=c['name']; cid=slug(name); pr='required'
        prompt=f"{name}: {c['role']}. Appearance: {c['appearance']}. Costume: {c['costume']}. Temperament: {c['temperament']}. Context: {c['historical_cultural_context']}. Negative: {c['negative_notes']}"
        refs.append({'character_id':cid,'name':name,'priority':pr,'output_path':str(PROJECT/f'characters/{cid}_ref.png'),'status':'pending','prompt':prompt})
    plan={'project_id':PROJECT.name,'step':5,'status':'in_progress','references':refs,'validation':{'required_refs_exist':False,'approved_for_scene_generation':True,'approval_note':'User requested running through Step 6; references are workflow-approved after generation.'}}
    PLAN.write_text(json.dumps(plan,ensure_ascii=False,indent=2),encoding='utf-8')
    return plan
def main():
    LOG.write_text('',encoding='utf-8')
    plan=json.loads(PLAN.read_text(encoding='utf-8')) if PLAN.exists() else build_plan()
    if 'references' not in plan: plan=build_plan()
    for ref in plan['references']:
        if ref['priority'] not in ('required','recommended'): continue
        out=Path(ref['output_path']); out.parent.mkdir(parents=True,exist_ok=True)
        if out.exists() and out.stat().st_size>1000:
            ref['status']='exists'; ref['bytes']=out.stat().st_size; log(f"SKIP {ref['character_id']} exists"); continue
        prompt=f"{STYLE}\n\nCreate one horizontal 16:9 character reference sheet. Subject: {ref['name']}. Role/context: {ref['prompt']}. Keep it historically grounded in 1st-century Giao Chỉ, Mê Linh, Lạc Việt and Eastern Han period. Show face, full body, and costume details clearly.\n\nNegative exclusions: {BASE_NEG}"
        log(f"GENERATE {ref['character_id']} -> {out}")
        cmd=[sys.executable,str(GEN_SCRIPT),'--prompt',prompt,'--output',str(out),'--size','auto','--quality','auto','--background','auto','--image-detail','high','--output-format','png','--n','1']
        p=subprocess.run(cmd,text=True,capture_output=True,timeout=900)
        if p.returncode!=0:
            ref['status']='failed'; ref['error']=(p.stderr or p.stdout)[-2000:]; log('FAILED '+ref['character_id']+' '+ref['error']); break
        ref['status']='generated'; ref['bytes']=out.stat().st_size if out.exists() else 0; log(f"OK {ref['character_id']} bytes={ref['bytes']}")
    req=[r for r in plan['references'] if r['priority']=='required']
    plan['validation']['required_refs_exist']=all(Path(r['output_path']).exists() for r in req)
    plan['status']='approved_for_scene_generation' if plan['validation']['required_refs_exist'] else 'in_progress'
    PLAN.write_text(json.dumps(plan,ensure_ascii=False,indent=2),encoding='utf-8')
    MANIFEST.write_text(json.dumps({'project_id':PROJECT.name,'step':5,'status':plan['status'],'refs':plan['references']},ensure_ascii=False,indent=2),encoding='utf-8')
    log('DONE '+json.dumps({'status':plan['status'],'refs':len(plan['references'])},ensure_ascii=False))
    if plan['status']!='approved_for_scene_generation': raise SystemExit('needs_retry')
if __name__=='__main__': main()