#!/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/29062026-001-Trieu-Viet-Vuong')
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()
def load_refs():
    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'])
    return refs
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, refs):
    t=text.lower(); keys=[]
    if any(x in t for x in ['triệu quang phục','triệu việt vương','dạ trạch vương']): keys.append('trieu-quang-phuc-trieu-viet-vuong')
    if any(x in t for x in ['lý nam đế','lý bí','vạn xuân']): keys.append('ly-nam-de-ly-bi')
    if any(x in t for x in ['trần bá tiên','quân lương','nhà lương']): keys.append('tran-ba-tien-va-quan-luong')
    if any(x in t for x in ['nghĩa quân','dạ trạch','đầm lầy','lau sậy']): keys.append('nghia-quan-da-trach')
    if 'lý phật tử' in t: keys.append('ly-phat-tu')
    if any(x in t for x in ['nhã lang','cảo nương']): keys.append('nha-lang-va-cao-nuong')
    if any(x in t for x in ['dân', 'nhân dân', 'làng']): keys.append('dan-chung-van-xuan')
    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, refs):
    if scene.get('type')=='heading':
        return f"{STYLE_HEADING}\nVietnamese title card text to depict accurately if possible: {scene['narration']}\nSubtle 6th-century Van Xuan / Da Trach motifs, reeds, marsh water, antique paper. {NEG}"
    sr=scene_refs(scene.get('narration','')+' '+scene.get('summary',''), refs)
    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 sr else ''
    return f"{STYLE_SCENE}\nHistorical context: mid-6th-century Van Xuan / Giao Chau Vietnam, Da Trach marshland, reeds, muddy waterways, Khuat Lao mountain refuge, early Vietnamese resistance against Liang invasion, fragile independent court atmosphere.\nNarration beat: {scene['narration']}\nVisual direction: {scene.get('visual_beat') or scene.get('visual_prompt')}\n{ref_note}One cinematic narrative scene, historically grounded early Vietnamese clothing, practical armor, spears, boats, bamboo, thatch, court/military objects, terrain, and atmosphere.\nNegative exclusions: {NEG}"
def run_one(scene, refs):
    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, refs),'--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',''), refs)[: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 biography poster for 'TRIỆU VIỆT VƯƠNG - NGỌN LỬA DẠ TRẠCH'. Large dramatic portrait of Triệu Việt Vương emerging from reeds and marsh mist, night guerrilla flames, Liang army silhouettes in the distance, Vạn Xuân parchment manuscript texture, dark sepia bronze black palette, large readable metallic-gold Vietnamese brush lettering over irregular black ink-splash title panel. Historically grounded 6th-century Van Xuan / Giao Chau Vietnam, not modern, not fantasy, no watermark."
def gen_thumb(kind,out,refs):
    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('trieu-quang-phuc-trieu-viet-vuong')
    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')
    refs=load_refs(); 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,refs):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,refs); 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()