"""Startup: patches app.py to add 24h news shorts (9:16 vertical) carousel, then runs it."""
import os, sys

APP_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "app.py")

def patch():
    with open(APP_PATH, "r", encoding="utf-8") as f:
        code = f.read()

    if "vslide-shorts-item" in code:
        return  # Already fully patched

    # 1. Add import
    if "from shorts_scraper import scrape_24h_news_shorts" not in code:
        code = code.replace(
            "from concurrent.futures import ThreadPoolExecutor, as_completed",
            "from concurrent.futures import ThreadPoolExecutor, as_completed\nfrom shorts_scraper import scrape_24h_news_shorts",
            1
        )

    # 2. Add shorts fetch to fetch_homepage
    if "h24_shorts" not in code:
        code = code.replace("    h24_videos=[]", "    h24_videos=[]\n    h24_shorts=[]", 1)
        # Add _fetch_shorts function
        old_fetch24h = "    def _fetch_24h():\n        nonlocal h24_videos\n        try: h24_videos=scrape_24h_video_list()[:15]\n        except: pass"
        new_fetch24h = old_fetch24h + "\n    def _fetch_shorts():\n        nonlocal h24_shorts\n        try: h24_shorts=scrape_24h_news_shorts()[:15]\n        except: pass"
        code = code.replace(old_fetch24h, new_fetch24h, 1)
        # Submit _fetch_shorts
        code = code.replace("        ex.submit(_fetch_24h)\n        futures=", "        ex.submit(_fetch_24h)\n        ex.submit(_fetch_shorts)\n        futures=", 1)
        # Return shorts
        code = code.replace("    return all_articles, h24_videos", "    return all_articles, h24_videos, h24_shorts", 1)

    # 3. Update fetch_news_list unpacking
    if "h24_shorts = fetch_homepage" not in code:
        code = code.replace(
            "        articles, h24_videos = fetch_homepage()\n        return render_homepage_html(articles, h24_videos)",
            "        articles, h24_videos, h24_shorts = fetch_homepage()\n        return render_homepage_html(articles, h24_videos, h24_shorts)",
            1
        )

    # 4. Add render_shorts_carousel_html
    if "render_shorts_carousel_html" not in code:
        fn = [
            'def render_shorts_carousel_html(shorts):',
            '    """9:16 vertical shorts carousel from 24h video-tin-tuc."""',
            '    vids = [v for v in shorts if v.get("img")]',
            '    if not vids: return ""',
            '    items = []',
            '    for v in vids[:15]:',
            '        img = safe_url(v.get("img",""))',
            '        link = v.get("link","#")',
            '        title = v.get("title","")',
            '        aid = make_id(link)',
            "        cjs = \"window.bdpOpenTikTok('\"+esc(link)+\"','\"+aid+\"')\"",
            '        items.append(\'<div class="vslide-shorts-item" onclick="\'+cjs+\'">\' +',
            '            \'<div class="vslide-shorts-thumb"><img src="\'+img+\'" alt="" class="bdp-lazy-img">\' +',
            '            \'<div class="vslide-play">\\u25b6</div></div>\' +',
            '            \'<p class="vslide-shorts-title">\'+title+\'</p></div>\')',
            '    h = \'<div class="vslide-wrap"><div class="vslide-header">\'',
            '    h += \'<span class="vslide-label">\\U0001f4f1 Shorts Tin T\\u1ee9c 24h</span>\'',
            "    h += '<div class=\"vslide-nav\"><button class=\"vslide-btn\" onclick=\"window.bdpSlideScroll(-1,\\'vslide-shorts\\')\">\\u25c0</button>'",
            "    h += '<button class=\"vslide-btn\" onclick=\"window.bdpSlideScroll(1,\\'vslide-shorts\\')\">\\u25b6</button></div></div>'",
            '    h += \'<div class="vslide-track" id="vslide-shorts">\'+\'\'.join(items)+\'</div></div>\'',
            '    return h',
            '',
        ]
        fn_code = '\n'.join(fn) + '\n'
        code = code.replace(
            "def render_video_carousel_html(videos):",
            fn_code + "def render_video_carousel_html(videos):",
            1
        )

    # 5. Update render_homepage_html
    if "h24_shorts=None" not in code:
        code = code.replace(
            "def render_homepage_html(articles, h24_videos=None):",
            "def render_homepage_html(articles, h24_videos=None, h24_shorts=None):",
            1
        )

    if "shorts_carousel" not in code:
        code = code.replace(
            "    video_carousel = render_video_carousel_html(h24_videos or [])",
            "    shorts_carousel = render_shorts_carousel_html(h24_shorts or [])\n    video_carousel = render_video_carousel_html(h24_videos or [])",
            1
        )
        code = code.replace(
            "{video_carousel}{news_carousel}",
            "{shorts_carousel}{video_carousel}{news_carousel}",
            1
        )

    # 6. Add CSS for 9:16 shorts
    if "vslide-shorts-item" not in code:
        shorts_css = (
            '\n/* Shorts 9:16 Slider */\n'
            '.vslide-shorts-item{flex:0 0 110px;scroll-snap-align:start;cursor:pointer;transition:transform .15s}\n'
            '.vslide-shorts-item:hover{transform:scale(1.04)}\n'
            '@media(min-width:768px){.vslide-shorts-item{flex:0 0 130px}}\n'
            '.vslide-shorts-thumb{position:relative;width:100%;aspect-ratio:9/16;border-radius:12px;overflow:hidden;background:#222}\n'
            '.vslide-shorts-thumb img{width:100%;height:100%;object-fit:cover}\n'
            '.vslide-shorts-title{color:#ccc;font-size:10.5px;margin:5px 0 0;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}\n'
        )
        code = code.replace(
            ".vslide-badge-24h{background:#e67e22;color:#fff}",
            ".vslide-badge-24h{background:#e67e22;color:#fff}" + shorts_css,
            1
        )

    with open(APP_PATH, "w", encoding="utf-8") as f:
        f.write(code)
    print("[startup.py] Patched app.py with 9:16 shorts carousel")


# Run patch then execute app
patch()

# Execute patched app.py
with open(APP_PATH, encoding="utf-8") as f:
    exec(compile(f.read(), APP_PATH, "exec"), {"__name__": "__main__", "__file__": APP_PATH})