#!/usr/bin/env python3
import concurrent.futures, json, os, subprocess, sys, time, re, unicodedata
from pathlib import Path
PROJECT=Path('/data/video-pipeline/Youtube-Video-Maker/Project/12062026-002-Nha-Ly')
GEN_SCRIPT=Path('/home/hermes/.hermes/skills/media/gen-img-gpt/scripts/gen_img_gpt.py')
SCENES=PROJECT/'script/scenes.json'; PLAN=PROJECT/'script/character_reference_plan.json'
OUT_SCENES=PROJECT/'images/scenes'; OUT_THUMBS=PROJECT/'output/thumbnails'; LOG=PROJECT/'logs/step06_images_run.log'; MANIFEST=PROJECT/'logs/step06_images_manifest.json'
WORKERS=int(os.environ.get('STEP06_WORKERS','7'))
STYLE_SCENE='16:9 horizontal historical storytelling image, centered irregular ink-wash narrative window on warm antique cream paper, painted content occupies only about 65-70 percent of page with 30-35 percent clean antique paper negative space, handcrafted Vietnamese co phong feeling, muted brown black charcoal watercolor wash, not modern, not full-frame glossy digital poster, not fantasy splash art, not 3D game key art, no text, no watermark.'
STYLE_HEADING='16:9 horizontal light Vietnamese old-calligraphy title-card on warm antique paper, subtle ink wash and small red seal stamp accent, airy text with breathing room, not heavy black title slam, not clean modern typography.'
NEG='Avoid modern objects, wrong culture, Chinese opera costume, European armor, fantasy armor, samurai, guns, character sheet layout, model sheet, multiple views, floating costume parts, text labels, watermark, logo, glossy poster, edge-to-edge full-frame painting.'
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()
REFS={}
if PLAN.exists():
    for r in json.loads(PLAN.read_text(encoding='utf-8')).get('references',[]): REFS[r['character_id']]=Path(r['output_path'])
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 scene_refs(text):
    t=text.lower(); keys=[]
    if 'lý công uẩn' in t or 'lý thái tổ' in t or 'dời đô' in t or 'thăng long' in t or 'đại la' in t: keys.append('ly-cong-uan-ly-thai-to')
    if 'lý thái tông' in t or 'hình thư' in t: keys.append('ly-thai-tong')
    if 'lý thánh tông' in t or 'đại việt' in t or 'chế củ' in t: keys.append('ly-thanh-tong')
    if 'lý nhân tông' in t or 'quốc tử giám' in t: keys.append('ly-nhan-tong')
    if 'ỷ lan' in t or 'linh nhân' in t: keys.append('y-lan')
    if 'lý thường kiệt' in t or 'như nguyệt' in t or 'nam quốc sơn hà' in t or 'ung châu' in t: keys.append('ly-thuong-kiet')
    if 'nhà tống' in t or 'quân tống' in t or 'quách quỳ' in t: keys.append('quan-tong-va-quach-quy')
    if 'phật giáo' in t or 'chùa' in t or 'sư' in t: keys.append('su-tang-phat-giao-thoi-ly')
    if 'lý chiêu hoàng' in t: keys.append('ly-chieu-hoang')
    if 'trần thủ độ' in t or 'trần cảnh' in t or 'họ trần' in t: keys.append('tran-thu-do-va-tran-canh')
    out=[]
    for k in keys:
        p=REFS.get(k)
        if p and p.exists() and p not in out: out.append(p)
    return out
def prompt_for(scene):
    if scene.get('type')=='heading':
        return f"{STYLE_HEADING}\nVietnamese title card text to depict accurately if possible: {scene['narration']}\nSubtle Nhà Lý / Hoa Lư motifs, reed flag and mountain citadel silhouette, antique paper. {NEG}"
    refs=scene_refs(scene.get('narration','')+' '+scene.get('summary',''))
    ref_note='Use attached character reference image(s) only to keep identity, age, face, costume language, and temperament consistent. Do not reproduce a reference sheet. ' if refs else ''
    return f"{STYLE_SCENE}\nHistorical context: 11th-12th-century Đại Việt under Nhà Lý, Thăng Long capital, Lý dynasty Buddhist elegance, Lý dragon motifs, Văn Miếu, Như Nguyệt frontier, court culture and riverine Đại Việt landscapes.\nNarration beat: {scene['narration']}\nVisual direction: {scene.get('visual_beat') or scene.get('visual_prompt')}\n{ref_note}One cinematic narrative scene, historically grounded Lý dynasty Đại Việt clothing, Buddhist architecture, royal court, river defenses, Thăng Long atmosphere.\nNegative exclusions: {NEG}"
def run_one(scene):
    out=OUT_SCENES/f"{scene['scene_id']}.png"
    if out.exists() and out.stat().st_size>1000: return {'scene_id':scene['scene_id'],'status':'skipped_exists','output':str(out),'bytes':out.stat().st_size}
    cmd=[sys.executable,str(GEN_SCRIPT),'--prompt',prompt_for(scene),'--output',str(out),'--size','auto','--quality','auto','--background','auto','--image-detail','high','--output-format','png','--n','1']
    for ref in scene_refs(scene.get('narration','')+' '+scene.get('summary',''))[:2]: cmd += ['--input-ref',str(ref)]
    p=subprocess.run(cmd,text=True,capture_output=True,timeout=1200)
    if p.returncode!=0: return {'scene_id':scene['scene_id'],'status':'failed','output':str(out),'error':(p.stderr or p.stdout)[-2000:]}
    return {'scene_id':scene['scene_id'],'status':'ok','output':str(out),'bytes':out.stat().st_size if out.exists() else 0}
def thumb_prompt(kind):
    aspect='16:9 YouTube thumbnail, 1920x1080' if kind=='16x9' else 'TikTok-safe vertical thumbnail/poster, 1080x1280 preferred composition'
    return f"{aspect}. Cinematic Vietnamese historical dynasty poster for 'NHÀ LÝ - TỪ CHIẾU DỜI ĐÔ ĐẾN HÀO KHÍ ĐẠI VIỆT'. Large dramatic portrait of Lý Công Uẩn / Lý Thái Tổ with Thăng Long rising behind him, golden dragon ascending above Đại La, chùa tháp Phật giáo, Lý Thường Kiệt and Như Nguyệt river battle silhouettes in the distance, manuscript parchment texture, elegant sepia bronze jade palette, readable metallic-gold Vietnamese brush lettering over irregular black ink-splash title panel. Historically grounded 11th-12th-century Đại Việt / Thăng Long / Nhà Lý, not modern, not fantasy, no watermark."
def gen_thumb(kind,out):
    if out.exists() and out.stat().st_size>1000: return {'kind':kind,'status':'skipped_exists','output':str(out),'bytes':out.stat().st_size}
    cmd=[sys.executable,str(GEN_SCRIPT),'--prompt',thumb_prompt(kind),'--output',str(out),'--size','auto','--quality','auto','--background','auto','--image-detail','high','--output-format','png','--n','1']
    p=REFS.get('ly-cong-uan-ly-thai-to')
    if p and p.exists(): cmd += ['--input-ref',str(p)]
    r=subprocess.run(cmd,text=True,capture_output=True,timeout=1200)
    if r.returncode!=0: return {'kind':kind,'status':'failed','output':str(out),'error':(r.stderr or r.stdout)[-2000:]}
    return {'kind':kind,'status':'ok','output':str(out),'bytes':out.stat().st_size if out.exists() else 0}
def main():
    OUT_SCENES.mkdir(parents=True,exist_ok=True); OUT_THUMBS.mkdir(parents=True,exist_ok=True); LOG.parent.mkdir(parents=True,exist_ok=True); LOG.write_text('',encoding='utf-8')
    scenes=json.loads(SCENES.read_text(encoding='utf-8'))['scenes']; results=[]; log(f'START step6 scenes={len(scenes)} workers={WORKERS}')
    with concurrent.futures.ThreadPoolExecutor(max_workers=WORKERS) as ex:
        futs={ex.submit(run_one,s):s for s in scenes}
        for fut in concurrent.futures.as_completed(futs):
            r=fut.result(); results.append(r); log((f"{r['status']} {r.get('scene_id')} bytes={r.get('bytes')}" if 'scene_id' in r else str(r)))
    thumb_results=[]
    if not any(r['status']=='failed' for r in results):
        log('START thumbnails');
        for kind,name in [('16x9','thumb_16x9_final.png'),('9x16','thumb_9x16_final.png')]:
            tr=gen_thumb(kind,OUT_THUMBS/name); thumb_results.append(tr); log(str(tr))
    status='completed' if all(r['status'] in ('ok','skipped_exists') for r in results) and len(thumb_results)==2 and all(r['status'] in ('ok','skipped_exists') for r in thumb_results) else 'needs_retry'
    MANIFEST.write_text(json.dumps({'project_id':PROJECT.name,'step':6,'status':status,'workers':WORKERS,'total_scenes':len(scenes),'scene_results':results,'thumbnail_results':thumb_results},ensure_ascii=False,indent=2),encoding='utf-8')
    log('DONE '+json.dumps({'status':status,'scenes_done':sum(1 for r in results if r['status'] in ('ok','skipped_exists')),'scenes_total':len(scenes),'thumbs':len(thumb_results)},ensure_ascii=False))
    if status!='completed': raise SystemExit('needs_retry')
if __name__=='__main__': main()