From f8b10a3a71e3607584ca43034ecb55eed1e36117 Mon Sep 17 00:00:00 2001
From: ethanfel <ethan.fel@ts-pc.fr>
Date: Fri, 2 Jan 2026 13:39:00 +0100
Subject: [PATCH] Update tab_timeline.py

---
 tab_timeline.py | 89 +++++++++++++++++++++++++++++++++----------------
 1 file changed, 60 insertions(+), 29 deletions(-)

diff --git a/tab_timeline.py b/tab_timeline.py
index 159f758..5bfc86c 100644
--- a/tab_timeline.py
+++ b/tab_timeline.py
@@ -14,10 +14,10 @@ def render_timeline_tab(data, file_path):
 
     # 1. STATUS INDICATOR
     if 'restored_indicator' in st.session_state and st.session_state.restored_indicator:
-        st.info(f"📍 You are currently viewing restored version: **{st.session_state.restored_indicator}**")
+        st.info(f"📍 Editing Restored Version: **{st.session_state.restored_indicator}**")
 
-    # 2. Horizontal Visualizer (Compact)
-    st.caption("Timeline")
+    # 2. COMPACT VISUALIZER
+    st.subheader("🕰️ Version History")
     try:
         graph_dot = htree.generate_horizontal_graph()
         st.graphviz_chart(graph_dot, use_container_width=True)
@@ -26,6 +26,7 @@ def render_timeline_tab(data, file_path):
 
     st.markdown("---")
 
+    # 3. INSPECTOR AREA
     col_sel, col_act = st.columns([3, 1])
     
     all_nodes = list(htree.nodes.values())
@@ -35,6 +36,7 @@ def render_timeline_tab(data, file_path):
         return f"{n.get('note', 'Step')} ({n['id']})"
 
     with col_sel:
+        # Auto-select HEAD if possible
         current_idx = 0
         for i, n in enumerate(all_nodes):
             if n["id"] == htree.head_id:
@@ -48,40 +50,69 @@ def render_timeline_tab(data, file_path):
             index=current_idx
         )
 
+    # 4. SMART INSPECTOR
     if selected_node:
         node_data = selected_node["data"]
         
-        with st.expander(f"📝 Data Inspector: {selected_node.get('note')}", expanded=False):
-            edited_json_str = st.text_area(
-                "Raw Data", 
-                value=json.dumps(node_data, indent=4), 
-                height=300
-            )
+        # --- A. DIFF VIEWER (NEW) ---
+        # Calculate differences between CURRENT Data and SELECTED Node
+        diffs = []
         
+        # Compare keys
+        all_keys = set(data.keys()) | set(node_data.keys())
+        ignore_keys = {"history_tree", "prompt_history", "batch_data", "ui_reset_token"}
+        
+        for k in all_keys:
+            if k in ignore_keys: continue
+            
+            val_now = data.get(k, "N/A")
+            val_then = node_data.get(k, "N/A")
+            
+            if str(val_now) != str(val_then):
+                diffs.append((k, val_now, val_then))
+
+        with st.expander(f"🔍 Delta Inspector (Differences from Current)", expanded=True):
+            if not diffs:
+                st.caption("✅ This node is identical to your current state.")
+            else:
+                for k, v_now, v_then in diffs:
+                    c1, c2, c3 = st.columns([1, 2, 2])
+                    c1.markdown(f"**{k}**")
+                    c2.markdown(f"🔴 Current: `{str(v_now)[:50]}`")
+                    c3.markdown(f"🟢 Selected: `{str(v_then)[:50]}`")
+
+        # --- B. RENAME TOOL (NEW) ---
+        c_ren1, c_ren2 = st.columns([3, 1])
+        new_note = c_ren1.text_input("Rename Node Label", value=selected_node.get("note", ""))
+        if c_ren2.button("Update Label"):
+            selected_node["note"] = new_note
+            data["history_tree"] = htree.to_dict()
+            save_json(file_path, data)
+            st.rerun()
+
+        # --- C. RESTORE BUTTON ---
         with col_act:
             st.write(""); st.write("")
             if st.button("⏪ Restore", type="primary", use_container_width=True):
-                try:
-                    new_data_content = json.loads(edited_json_str)
-                    data.update(new_data_content)
-                    htree.head_id = selected_node['id']
-                    
-                    data["history_tree"] = htree.to_dict()
-                    save_json(file_path, data)
-                    
-                    st.session_state.ui_reset_token += 1
-                    
-                    # SET INDICATOR
-                    node_label = f"{selected_node.get('note', 'Step')} ({selected_node['id'][:4]})"
-                    st.session_state.restored_indicator = node_label
-                    
-                    st.toast(f"Restored to {selected_node['id']}!", icon="🔄")
-                    st.rerun()
-                    
-                except json.JSONDecodeError:
-                    st.error("Invalid JSON format.")
+                # Restore Logic
+                data.update(node_data)
+                htree.head_id = selected_node['id']
+                
+                data["history_tree"] = htree.to_dict()
+                save_json(file_path, data)
+                
+                st.session_state.ui_reset_token += 1
+                
+                # Set Indicator
+                node_label = f"{selected_node.get('note', 'Step')} ({selected_node['id'][:4]})"
+                st.session_state.restored_indicator = node_label
+                
+                st.toast(f"Restored to {selected_node['id']}!", icon="🔄")
+                st.rerun()
 
-    with st.expander("Danger Zone"):
+    # 5. RAW DATA & DELETE
+    with st.expander("Advanced Options (Raw JSON & Delete)"):
+        st.json(node_data, expanded=False)
         if st.button("🗑️ Delete Node"):
             if selected_node['id'] in htree.nodes:
                 del htree.nodes[selected_node['id']]