Add app.py

app.py

@@ -0,0 +1,140 @@
+"""ICML 2026 Open Reproductions — Certificate Generator
+=======================================================
+1. Sign in with Hugging Face (OAuth).
+2. Eligibility is checked against the frozen challenge verdicts: every
+   participant with at least one claim judged `verified` qualifies
+   (baked into eligible.json at challenge close — 267 participants).
+3. The display name is editable; the certificate renders (HTML -> PNG via the
+   shared renderer Space) with the participant's verified-claim stats.
+"""
+
+import inspect
+import json
+import os
+import tempfile
+import urllib.parse
+
+import gradio as gr
+from gradio_client import Client, handle_file
+
+RENDERER_SPACE = "https://ysharma-hackathon-certificate-html-to-image.hf.space/"
+DISCUSSIONS_URL = "https://huggingface.co/spaces/ICML-2026-agent-repro/challenge/discussions"
+
+_HERE = os.path.dirname(__file__)
+with open(os.path.join(_HERE, "certificate_template.html"), encoding="utf-8") as f:
+    TEMPLATE = f.read()
+with open(os.path.join(_HERE, "eligible.json"), encoding="utf-8") as f:
+    ELIGIBLE = json.load(f)
+
+_client = None
+
+
+def get_renderer():
+    global _client
+    if _client is None:
+        params = inspect.signature(Client.__init__).parameters
+        kwargs = {}
+        token = os.getenv("HF_TOKEN")
+        if token:
+            kwargs["hf_token" if "hf_token" in params else "token"] = token
+        _client = Client(RENDERER_SPACE, **kwargs)
+    return _client
+
+
+def plural(n, word):
+    return f"{n} {word}" + ("" if n == 1 else "s")
+
+
+def stats_line(rec):
+    return (f"{plural(rec['verified_claims'], 'claim')} verified across "
+            f"{plural(rec['verified_papers'], 'paper')}")
+
+
+def on_load(profile: gr.OAuthProfile | None):
+    if profile is None:
+        return (gr.update(visible=False), gr.update(visible=False),
+                "### 👋 Sign in with Hugging Face to check your eligibility.", "")
+    rec = ELIGIBLE.get(profile.username.lower())
+    if rec is None:
+        return (gr.update(visible=False), gr.update(visible=True),
+                f"### Sorry @{profile.username} — no verified logbook found.\n"
+                "Certificates go to participants with at least one claim judged "
+                "**verified** by the Logbook Judge before the Aug 2 deadline. "
+                f"If you believe this is an error, please open a thread in the "
+                f"[challenge discussions]({DISCUSSIONS_URL}).", "")
+    return (gr.update(visible=True), gr.update(visible=False),
+            f"### 🎉 Congratulations @{profile.username} — you qualify!\n"
+            f"Your record: **{stats_line(rec)}** ({plural(rec['logbooks'], 'logbook')} judged). "
+            "Adjust how your name should appear, then generate your certificate.",
+            profile.name or profile.username)
+
+
+def linkedin_url(name):
+    p = {
+        "startTask": "CERTIFICATION_NAME",
+        "name": "ICML 2026 Open Reproductions — Certificate of Participation",
+        "organizationName": "Hugging Face",
+        "issueYear": "2026", "issueMonth": "8",
+        "certUrl": "https://huggingface.co/spaces/ICML-2026-agent-repro/certificate-generator",
+    }
+    return "https://www.linkedin.com/profile/add?" + urllib.parse.urlencode(p)
+
+
+def create_certificate(display_name, profile: gr.OAuthProfile | None):
+    if profile is None:
+        return None, "❌ Please sign in first.", gr.update(visible=False)
+    rec = ELIGIBLE.get(profile.username.lower())
+    if rec is None:
+        return None, "❌ No verified logbook found for your account.", gr.update(visible=False)
+    name = (display_name or "").strip() or profile.name or profile.username
+    html = TEMPLATE.replace("{participant_name}", name).replace("{stats_line}", stats_line(rec))
+    with tempfile.NamedTemporaryFile("w", delete=False, suffix=".html", encoding="utf-8") as f:
+        f.write(html)
+        path = f.name
+    try:
+        image_path = get_renderer().predict(html_file=handle_file(path), api_name="/predict")[0]
+    except Exception as e:
+        return None, f"❌ Rendering failed: {e}. Please try again in a minute.", gr.update(visible=False)
+    btn = (f'<a href="{linkedin_url(name)}" target="_blank" '
+           f'style="display:inline-block;background:#0a66c2;color:#fff;font-weight:700;'
+           f'padding:10px 22px;border-radius:8px;text-decoration:none">Add to LinkedIn profile →</a>')
+    return image_path, "🎉 Your certificate is ready — download it below.", gr.update(value=btn, visible=True)
+
+
+THEME = gr.themes.Base(
+    primary_hue=gr.themes.colors.orange,
+    neutral_hue=gr.themes.colors.stone,
+)
+
+CSS = """
+.gradio-container {
+  background-color: #fdfcf9 !important;
+  background-image:
+    linear-gradient(rgba(31,41,55,.045) 1px, transparent 1px),
+    linear-gradient(90deg, rgba(31,41,55,.045) 1px, transparent 1px);
+  background-size: 26px 26px;
+}
+#hero h1 { font-family: ui-serif, "Iowan Old Style", Georgia, serif; }
+"""
+
+with gr.Blocks(title="ICML 2026 Open Reproductions — Certificates", theme=THEME, css=CSS) as demo:
+    gr.Markdown("# 🎓 ICML 2026 Open Reproductions — Certificate of Participation", elem_id="hero")
+    gr.Markdown(
+        "Every participant with **at least one claim judged `verified`** in the challenge "
+        "(July 15 – August 2, 2026) can generate their certificate here."
+    )
+    login = gr.LoginButton()
+    status = gr.Markdown()
+    with gr.Column(visible=False) as main_box:
+        name_box = gr.Textbox(label="Name on the certificate")
+        gen_btn = gr.Button("Generate my certificate 🎓", variant="primary")
+        cert_image = gr.Image(label="Your certificate", type="filepath", interactive=False)
+        note = gr.Markdown()
+        linkedin = gr.HTML(visible=False)
+    with gr.Column(visible=False) as contact_box:
+        pass
+
+    demo.load(on_load, inputs=None, outputs=[main_box, contact_box, status, name_box])
+    gen_btn.click(create_certificate, inputs=[name_box], outputs=[cert_image, note, linkedin])
+
+demo.launch()