#!/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/08062026-001-Tran-Nhat-Duat')
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 'phạm ngũ lão' in t or 'ngũ lão' in t or 'đan sọt' in t: keys.append('tran-nhat-duat')
    if 'trần quốc tuấn' in t or 'hưng đạo' in t: keys.append('tran-quoc-tuan-hung-dao-vuong')
    if 'tam quân' in t or 'quân trần' in t or 'đông a' in t: keys.append('tran-soldiers-tam-quan')
    if 'nguyên' in t or 'mông' in t or 'thoát hoan' in t or 'ô mã nhi' in t or 'toa đô' in t: keys.append('quan-nguyen-mong')
    if 'trần khánh dư' in t or 'vân đồn' in t: keys.append('tran-khanh-du')
    if 'trần quang khải' in t or 'chương dương' in t: keys.append('tran-quang-khai')
    if 'trần nhật duật' in t or 'hàm tử' in t: keys.append('tran-nhat-duat')
    if 'phù ủng' in t or 'dân' in t or 'làng' in t: keys.append('dan-lang-phu-ung-dai-viet')
    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 Trần dynasty motifs, spear 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: 13th-century Đại Việt under the Trần dynasty, Bắc Bộ villages, Thăng Long court, Trần army camps, rivers Hàm Tử/Chương Dương/Bạch Đằng, anti-Mongol resistance 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 Vietnamese Trần dynasty clothing, armor, spears, boats, architecture, terrain, and 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 biography poster for 'LÝ NAM ĐẾ - NGƯỜI DỰNG NƯỚC VẠN XUÂN GIỮA ĐÊM DÀI BẮC THUỘC'. Large dramatic portrait of Trần Nhật Duật with spear, village basket-weaving origin, Hưng Đạo Vương silhouette, Bạch Đằng stakes and Trần army atmosphere, manuscript parchment texture, dark sepia bronze black palette, large readable metallic-gold Vietnamese brush lettering over irregular black ink-splash title panel. Historically grounded 13th-century Đại Việt Trần dynasty, 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('tran-nhat-duat')
    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()