#!/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-Nha-Mac')
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, Qing dynasty queue, Chinese opera costume, European armor, fantasy armor, samurai, guns as dominant modern look, 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 'mạc đăng dung' in t: keys.append('mac-dang-dung')
    if 'mạc đăng doanh' in t: keys.append('mac-dang-doanh')
    if 'mạc mậu hợp' in t: keys.append('mac-mau-hop')
    if 'nguyễn bỉnh khiêm' in t or 'bạch vân' in t: keys.append('nguyen-binh-khiem-bach-van-cu-si')
    if 'lê trang tông' in t or 'lê trung hưng' in t or 'nam triều' in t: keys.append('le-trung-hung-le-trang-tong')
    if 'nguyễn kim' in t or 'trịnh kiểm' in t: keys.append('nguyen-kim-va-trinh-kiem')
    if 'trịnh tùng' in t or 'lê – trịnh' in t or 'lê-trịnh' in t: keys.append('trinh-tung-va-quan-le-trinh')
    if 'sĩ phu' in t or 'quan lại' in t or 'khoa cử' in t: keys.append('si-phu-va-quan-lai-dai-viet')
    if any(x in t for x in ['dân chúng','dân phu','làng','ruộng','bắt lính','đói nghèo']): keys.append('dan-chung-nam-bac-trieu')
    if 'quân mạc' in t or 'bắc triều' in t or 'thăng long' in t: keys.append('quan-mac-bac-trieu')
    if 'nhà minh' in t or 'triều minh' in t or 'biên giới' in t: keys.append('nha-minh-su-than-va-bien-gioi')
    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 16th-century Mac dynasty / Nam Bac Trieu motifs, court seals, divided banners, 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: 16th-century Dai Viet, Mac dynasty in Thang Long, late Le legitimacy crisis, Nam-Bac Trieu civil war, Thanh Hoa-Nghe An bases, Ming border pressure, Confucian court and village society.\nNarration beat: {scene['narration']}\nVisual direction: {scene.get('visual_beat') or scene.get('visual_prompt')}\n{ref_note}One cinematic narrative scene, historically grounded Vietnamese 16th-century clothing, armor, banners, palaces, villages, temples, exam halls, war camps, 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 dynasty poster for 'NHÀ MẠC - DANH NGHĨA VÀ BÃO TỐ NAM BẮC TRIỀU'. Large dramatic portrait of Mạc Đăng Dung in 16th-century Đại Việt court-military robe, split background: Thăng Long palace and burning civil-war battlefield, Lê-Trịnh banners in distance, Ming border pressure hinted by envoy silhouettes, manuscript parchment texture, dark sepia bronze black palette, large readable metallic-gold Vietnamese brush lettering over irregular black ink-splash title panel. Historically grounded, 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('mac-dang-dung')
    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()