Update app.py

app.py

@@ -1066,6 +1066,38 @@ Full raw RAG context
     return str(out_path)
 
 
+def render_context_download(path: str) -> str:
+    """Render a lightweight download card without gr.File.
+
+    Gradio 4.44.0 can crash while generating API metadata for gr.File
+    on Spaces. A plain HTML link avoids that schema bug.
+    The launch() call exposes REGTECH_CONTEXT_DIR through allowed_paths.
+    """
+    if not path:
+        return ""
+
+    safe_path = esc(path)
+    filename = esc(Path(path).name)
+    return f"""
+<div style="font-family:'IBM Plex Mono',monospace;background:#0f172a;color:#e2e8f0;
+            padding:0.9rem 1rem;border-radius:10px;border:1px solid #1e3a5f;
+            margin:0.8rem 0">
+  <div style="color:#94a3b8;font-size:0.72rem;text-transform:uppercase;
+              letter-spacing:0.1em;margin-bottom:0.35rem">
+    Download audit context
+  </div>
+  <div style="color:#64748b;font-size:0.74rem;margin-bottom:0.55rem">
+    Full raw retrieved regulatory context exported as a text file.
+  </div>
+  <a href="/file={safe_path}" download="{filename}"
+     style="display:inline-block;background:#1e3a5f;color:#bfdbfe;border:1px solid #2563eb;
+            border-radius:6px;padding:0.45rem 0.7rem;text-decoration:none;font-size:0.78rem">
+    Download {filename}
+  </a>
+</div>
+"""
+
+
 def make_followup_update(followups: list[str], lang: str):
     label = "Explore related questions" if lang == "en" else "Explorar questões relacionadas"
     items = [str(f).strip() for f in followups if str(f).strip()]
@@ -1073,11 +1105,11 @@ def make_followup_update(followups: list[str], lang: str):
 
 
 def analyze(query: str):
-    hidden_file = gr.update(value=None, visible=False)
+    hidden_download = ""
     hidden_followups = gr.update(choices=[], value=None, visible=False)
 
     if not query or not query.strip():
-        return render_error("Please enter a compliance query."), "", hidden_file, hidden_followups
+        return render_error("Please enter a compliance query."), "", hidden_download, hidden_followups
 
     query = query.strip()
     lang = detect_language(query)
@@ -1097,7 +1129,7 @@ def analyze(query: str):
         )
 
     if not results:
-        return render_error("No relevant regulatory chunks found. Try rephrasing your query."), "", hidden_file, hidden_followups
+        return render_error("No relevant regulatory chunks found. Try rephrasing your query."), "", hidden_download, hidden_followups
 
     context = format_context(results)
     report = call_claude(query, context)
@@ -1106,7 +1138,7 @@ def analyze(query: str):
         return (
             render_error("Could not reach Claude API. Check that ANTHROPIC_API_KEY is set as a Space Secret."),
             render_evidence_summary(results),
-            gr.update(value=context_path, visible=True),
+            render_context_download(context_path),
             hidden_followups,
         )
 
@@ -1128,7 +1160,7 @@ def analyze(query: str):
     return (
         render_report(report, query, results),
         render_evidence_summary(results),
-        gr.update(value=context_path, visible=True),
+        render_context_download(context_path),
         make_followup_update(followups, lang),
     )
 
@@ -1303,12 +1335,7 @@ with gr.Blocks(css=CSS, title="RegTech BR") as demo:
         elem_classes=["followup-radio"],
     )
 
-    context_file = gr.File(
-        label="Download full retrieved regulatory context (.txt)",
-        visible=False,
-        interactive=False,
-        elem_classes=["file-output"],
-    )
+    context_download_html = gr.HTML(label="Download full retrieved regulatory context")
 
     with gr.Accordion("Quick regulatory checks — load an example query", open=False):
         gr.HTML("""
@@ -1340,9 +1367,16 @@ with gr.Blocks(css=CSS, title="RegTech BR") as demo:
 
     followup_radio.change(fn=lambda selected: selected or "", inputs=[followup_radio], outputs=[query_box])
 
-    analyze_btn.click(fn=analyze, inputs=[query_box], outputs=[report_html, evidence_html, context_file, followup_radio])
-    query_box.submit(fn=analyze, inputs=[query_box], outputs=[report_html, evidence_html, context_file, followup_radio])
+    analyze_btn.click(fn=analyze, inputs=[query_box], outputs=[report_html, evidence_html, context_download_html, followup_radio])
+    query_box.submit(fn=analyze, inputs=[query_box], outputs=[report_html, evidence_html, context_download_html, followup_radio])
 
 if __name__ == "__main__":
     port = int(os.environ.get("PORT", 7860))
-    demo.queue().launch(server_name="0.0.0.0", server_port=port, share=False, show_api=False)
+    context_dir = os.environ.get("REGTECH_CONTEXT_DIR", "/tmp/regtech_br_contexts")
+    demo.queue().launch(
+        server_name="0.0.0.0",
+        server_port=port,
+        share=True,
+        show_api=False,
+        allowed_paths=[context_dir],
+    )