Update app.py

app.py

@@ -9,16 +9,16 @@ UPLOAD_DIR.mkdir(parents=True, exist_ok=True)
 _last_segments = []
 
 SPEAKER_COLORS = [
-    ("#4F46E5", "#EEF2FF"),
-    ("#059669", "#ECFDF5"),
-    ("#DC2626", "#FEF2F2"),
-    ("#D97706", "#FFFBEB"),
-    ("#7C3AED", "#F5F3FF"),
-    ("#0891B2", "#ECFEFF"),
-    ("#DB2777", "#FDF2F8"),
-    ("#65A30D", "#F7FEE7"),
-    ("#EA580C", "#FFF7ED"),
-    ("#0284C7", "#F0F9FF"),
+    ("#4F46E5", "#EEF2FF"),  # A - indigo
+    ("#059669", "#ECFDF5"),  # B - green
+    ("#DC2626", "#FEF2F2"),  # C - red
+    ("#D97706", "#FFFBEB"),  # D - amber
+    ("#7C3AED", "#F5F3FF"),  # E - purple
+    ("#0891B2", "#ECFEFF"),  # F - cyan
+    ("#DB2777", "#FDF2F8"),  # G - pink
+    ("#65A30D", "#F7FEE7"),  # H - lime
+    ("#EA580C", "#FFF7ED"),  # I - orange
+    ("#0284C7", "#F0F9FF"),  # J - sky
 ]
 
 def make_conversation_html(segments):
@@ -26,6 +26,8 @@ def make_conversation_html(segments):
         return ""
     speaker_list = list(dict.fromkeys(s.speaker for s in segments))
     color_map = {spk: SPEAKER_COLORS[i % len(SPEAKER_COLORS)] for i, spk in enumerate(speaker_list)}
+
+    # Legend
     legend_items = "".join(
         f"<span style='display:inline-flex;align-items:center;gap:6px;margin-right:16px'>"
         f"<span style='width:12px;height:12px;border-radius:50%;background:{color_map[spk][0]}'></span>"
@@ -33,29 +35,36 @@ def make_conversation_html(segments):
         for spk in speaker_list
     )
     legend = f"<div style='padding:12px 16px;border-bottom:1px solid #e5e7eb;display:flex;flex-wrap:wrap;gap:4px'>{legend_items}</div>"
+
+    # Conversation bubbles
     bubbles = ""
     for seg in segments:
         fg, bg = color_map[seg.speaker]
         align = "flex-end" if speaker_list.index(seg.speaker) % 2 == 1 else "flex-start"
-        radius = "4px 16px 16px 16px" if align == "flex-start" else "16px 4px 16px 16px"
-        ta = "text-align:right;" if align == "flex-end" else ""
-        bubbles += (
-            f"<div style='display:flex;justify-content:{align};margin:6px 12px'>"
-            f"<div style='max-width:75%'>"
-            f"<div style='font-size:11px;color:#6b7280;margin-bottom:3px;{ta}'>"
-            f"<span style='font-weight:600;color:{fg}'>Speaker {seg.speaker}</span>"
-            f" &middot; {seg.start_fmt} &rarr; {seg.end_fmt}</div>"
-            f"<div style='background:{bg};border:1px solid {fg}30;color:#111827;"
-            f"padding:10px 14px;border-radius:{radius};font-size:14px;line-height:1.5'>"
-            f"{seg.text}</div></div></div>"
-        )
-    return (
-        f"<div style='border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;"
-        f"font-family:system-ui,sans-serif;background:white'>"
-        f"{legend}"
-        f"<div style='height:480px;overflow-y:auto;padding:8px 0;background:#f9fafb'>"
-        f"{bubbles}</div></div>"
-    )
+        bubbles += f"""
+        <div style='display:flex;justify-content:{align};margin:6px 12px'>
+          <div style='max-width:75%'>
+            <div style='font-size:11px;color:#6b7280;margin-bottom:3px;
+                        {"text-align:right" if align=="flex-end" else ""}'>
+              <span style='font-weight:600;color:{fg}'>Speaker {seg.speaker}</span>
+              &nbsp;·&nbsp;{seg.start_fmt} → {seg.end_fmt}
+            </div>
+            <div style='background:{bg};border:1px solid {fg}30;color:#111827;
+                        padding:10px 14px;border-radius:{"4px 16px 16px 16px" if align=="flex-start" else "16px 4px 16px 16px"};
+                        font-size:14px;line-height:1.5'>
+              {seg.text}
+            </div>
+          </div>
+        </div>"""
+
+    return f"""
+    <div style='border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;
+                font-family:system-ui,sans-serif;background:white'>
+      {legend}
+      <div style='height:480px;overflow-y:auto;padding:8px 0;background:#f9fafb'>
+        {bubbles}
+      </div>
+    </div>"""
 
 def make_table_html(segments):
     if not segments:
@@ -64,42 +73,46 @@ def make_table_html(segments):
     color_map = {spk: SPEAKER_COLORS[i % len(SPEAKER_COLORS)] for i, spk in enumerate(speaker_list)}
     rows = "".join(
         f"<tr style='border-bottom:1px solid #f3f4f6'>"
-        f"<td style='padding:8px 12px'><span style='background:{color_map[s.speaker][1]};"
-        f"color:{color_map[s.speaker][0]};padding:3px 10px;border-radius:99px;"
-        f"font-weight:700;font-size:13px'>{s.speaker}</span></td>"
-        f"<td style='padding:8px 12px;color:#6b7280;font-size:13px'>{s.start_fmt}</td>"
-        f"<td style='padding:8px 12px;color:#6b7280;font-size:13px'>{s.end_fmt}</td>"
+        f"<td style='padding:8px 12px'>"
+        f"  <span style='background:{color_map[s.speaker][1]};color:{color_map[s.speaker][0]};"
+        f"  padding:3px 10px;border-radius:99px;font-weight:700;font-size:13px'>  {s.speaker}</span></td>"
+        f"<td style='padding:8px 12px;color:#6b7280;font-size:13px;white-space:nowrap'>{s.start_fmt}</td>"
+        f"<td style='padding:8px 12px;color:#6b7280;font-size:13px;white-space:nowrap'>{s.end_fmt}</td>"
         f"<td style='padding:8px 12px;font-size:14px;color:#111827'>{s.text}</td>"
         f"</tr>"
         for s in segments
     )
-    return (
-        f"<div style='border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;"
-        f"font-family:system-ui,sans-serif'>"
-        f"<table style='width:100%;border-collapse:collapse'>"
-        f"<thead><tr style='background:#1e3a5f;color:white'>"
-        f"<th style='padding:10px 12px;text-align:left'>Speaker</th>"
-        f"<th style='padding:10px 12px;text-align:left'>Start</th>"
-        f"<th style='padding:10px 12px;text-align:left'>End</th>"
-        f"<th style='padding:10px 12px;text-align:left'>Transcript</th>"
-        f"</tr></thead><tbody>{rows}</tbody></table></div>"
-    )
+    return f"""
+    <div style='border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;font-family:system-ui,sans-serif'>
+      <table style='width:100%;border-collapse:collapse'>
+        <thead>
+          <tr style='background:#1e3a5f;color:white'>
+            <th style='padding:10px 12px;text-align:left;font-size:13px'>Speaker</th>
+            <th style='padding:10px 12px;text-align:left;font-size:13px'>Start</th>
+            <th style='padding:10px 12px;text-align:left;font-size:13px'>End</th>
+            <th style='padding:10px 12px;text-align:left;font-size:13px'>Transcript</th>
+          </tr>
+        </thead>
+        <tbody>{rows}</tbody>
+      </table>
+    </div>"""
 
 def process_audio(audio_path, num_speakers):
     global _last_segments
     if audio_path is None:
-        return "Please upload an audio file first.", "", ""
+        return "⚠️ Please upload an audio file first.", "", ""
     try:
         pipeline = get_pipeline()
         n = int(num_speakers) if num_speakers and int(num_speakers) > 0 else 0
         segments = pipeline.process(audio_path, num_speakers=n)
     except Exception as e:
-        return f"Error: {e}\n{traceback.format_exc()}", "", ""
+        return f"❌ Error: {e}\n{traceback.format_exc()}", "", ""
     if not segments:
-        return "No speech detected.", "", ""
+        return "⚠️ No speech detected.", "", ""
     _last_segments = segments
     unique = len(set(s.speaker for s in segments))
-    return f"Done - {len(segments)} segments, {unique} speaker(s) detected", make_conversation_html(segments), make_table_html(segments)
+    status = f"✅ Done — {len(segments)} segments · {unique} speaker(s) detected"
+    return status, make_conversation_html(segments), make_table_html(segments)
 
 def export_json():
     if not _last_segments: return None
@@ -113,30 +126,43 @@ def export_csv():
     to_csv(_last_segments, out)
     return out
 
-with gr.Blocks(title="Speech Annotation Pipeline") as demo:
-    gr.Markdown("# Speech Annotation Pipeline\n*Upload audio · Detect speakers · Export transcript*")
+css = """
+.gradio-container { max-width: 1100px !important; margin: auto !important; }
+footer { display: none !important; }
+"""
+
+with gr.Blocks(title="Speech Annotation Pipeline", css=css) as demo:
+    gr.Markdown("""# 🎙️ Speech Annotation Pipeline
+*Upload audio · Detect speakers · Export transcript*""")
+
     with gr.Row():
         with gr.Column(scale=1):
-            audio_input = gr.Audio(label="Upload Audio (.wav / .mp3 / .flac)", type="filepath")
+            audio_input  = gr.Audio(label="Upload Audio (.wav / .mp3 / .flac)", type="filepath")
             num_speakers = gr.Slider(minimum=0, maximum=10, step=1, value=0,
-                                     label="Number of speakers (0 = auto-detect)")
-            run_btn = gr.Button("Run Annotation", variant="primary")
+                                     label="Number of speakers  (0 = auto-detect)")
+            run_btn = gr.Button("▶  Run Annotation", variant="primary", size="lg")
             status_box = gr.Textbox(label="Status", value="Ready.", interactive=False)
+            gr.Markdown("### 📥 Export")
             with gr.Row():
-                json_btn = gr.Button("Export JSON")
-                csv_btn  = gr.Button("Export CSV")
-            json_file = gr.File(label="JSON Download")
-            csv_file  = gr.File(label="CSV Download")
+                json_btn = gr.Button("⬇ JSON", size="sm")
+                csv_btn  = gr.Button("⬇ CSV",  size="sm")
+            json_file = gr.File(label="JSON Download", visible=True)
+            csv_file  = gr.File(label="CSV Download",  visible=True)
+
         with gr.Column(scale=2):
-            gr.Markdown("### Conversation View")
-            conversation_html = gr.HTML(value="<div style='height:480px;border:1px solid #e5e7eb;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#9ca3af'>Transcript will appear here after processing</div>")
-            gr.Markdown("### Segment Table")
+            gr.Markdown("### 💬 Conversation View")
+            conversation_html = gr.HTML(value="<div style='height:480px;border:1px solid #e5e7eb;"
+                                        "border-radius:12px;display:flex;align-items:center;"
+                                        "justify-content:center;color:#9ca3af;font-family:system-ui'>"
+                                        "Transcript will appear here after processing…</div>")
+            gr.Markdown("### 📋 Segment Table")
             table_html = gr.HTML(value="")
 
-    run_btn.click(fn=process_audio, inputs=[audio_input, num_speakers],
+    run_btn.click(fn=process_audio,
+                  inputs=[audio_input, num_speakers],
                   outputs=[status_box, conversation_html, table_html])
     json_btn.click(fn=export_json, inputs=[], outputs=[json_file])
-    csv_btn.click(fn=export_csv, inputs=[], outputs=[csv_file])
+    csv_btn.click(fn=export_csv,  inputs=[], outputs=[csv_file])
 
 if __name__ == "__main__":
-    demo.launch(server_name="0.0.0.0", server_port=7860)
+    demo.launch(server_name="0.0.0.0", server_port=7860, show_error=True)