Fix 7 bugs: bounds checks, deepcopy, time import, JS keys, unused import

- Add bounds check on src_batch index in add_from_source and copy_source
- Guard delete callback against stale index after rapid clicks
- Replace __import__('time').time() with time.time() in sync_to_db
- Use deepcopy(DEFAULTS) consistently in utils.py and main.py
- Use JSON.stringify in JS onConfigure fallback path for key storage
- Read state.show_comfy_monitor for checkbox initial value
- Remove unused KEY_BATCH_DATA import from tab_projects_ng

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

main.py

@@ -1,3 +1,4 @@
+import copy
 import json
 import logging
 from pathlib import Path
@@ -481,7 +482,7 @@ def render_sidebar(state: AppState, dual_pane: dict):
                     if not fn.endswith('.json'):
                         fn += '.json'
                     path = state.current_dir / fn
-                    first_item = DEFAULTS.copy()
+                    first_item = copy.deepcopy(DEFAULTS)
                     first_item[KEY_SEQUENCE_NUMBER] = 1
                     save_json(path, {KEY_BATCH_DATA: [first_item]})
                     new_fn_input.set_value('')
@@ -514,7 +515,7 @@ def render_sidebar(state: AppState, dual_pane: dict):
         state.show_comfy_monitor = e.value
         state._render_main.refresh()
 
-    ui.checkbox('Show Comfy Monitor', value=True, on_change=on_monitor_toggle)
+    ui.checkbox('Show Comfy Monitor', value=state.show_comfy_monitor, on_change=on_monitor_toggle)
 
 
 # Register REST API routes for ComfyUI connectivity (uses the shared DB instance)

tab_batch_ng.py

@@ -273,7 +273,7 @@ def render_batch_processor(state: AppState):
                     item = copy.deepcopy(DEFAULTS)
                     src_batch = _src_cache['batch']
                     sel_idx = src_seq_select.value
-                    if src_batch and sel_idx is not None:
+                    if src_batch and sel_idx is not None and int(sel_idx) < len(src_batch):
                         item.update(copy.deepcopy(src_batch[int(sel_idx)]))
                     elif _src_cache['data']:
                         item.update(copy.deepcopy(_src_cache['data']))
@@ -398,7 +398,7 @@ def _render_sequence_card(i, seq, batch_list, data, file_path, state,
                 item = copy.deepcopy(DEFAULTS)
                 src_batch = src_cache['batch']
                 sel_idx = src_seq_select.value
-                if src_batch and sel_idx is not None:
+                if src_batch and sel_idx is not None and int(sel_idx) < len(src_batch):
                     item.update(copy.deepcopy(src_batch[int(sel_idx)]))
                 elif src_cache['data']:
                     item.update(copy.deepcopy(src_cache['data']))
@@ -453,8 +453,9 @@ def _render_sequence_card(i, seq, batch_list, data, file_path, state,
 
             # Delete
             def delete(idx=i):
-                batch_list.pop(idx)
+                if idx < len(batch_list):
-                commit()
+                    batch_list.pop(idx)
+                    commit()
 
             ui.button(icon='delete', on_click=delete).props('color=negative')
 

tab_projects_ng.py

@@ -7,7 +7,7 @@ from nicegui import ui
 
 from state import AppState
 from db import ProjectDB
-from utils import save_config, sync_to_db, KEY_BATCH_DATA
+from utils import save_config, sync_to_db
 
 logger = logging.getLogger(__name__)
 

utils.py

@@ -1,3 +1,4 @@
+import copy
 import json
 import logging
 import os
@@ -182,7 +183,7 @@ def sync_to_db(db, project_name: str, file_path: Path, data: dict) -> None:
             top_level = {k: v for k, v in data.items()
                          if k not in (KEY_BATCH_DATA, KEY_HISTORY_TREE)}
             if not df:
-                now = __import__('time').time()
+                now = time.time()
                 cur = db.conn.execute(
                     "INSERT INTO data_files (project_id, name, data_type, top_level, created_at, updated_at) "
                     "VALUES (?, ?, ?, ?, ?, ?)",
@@ -192,7 +193,7 @@ def sync_to_db(db, project_name: str, file_path: Path, data: dict) -> None:
             else:
                 df_id = df["id"]
                 # Update top_level metadata
-                now = __import__('time').time()
+                now = time.time()
                 db.conn.execute(
                     "UPDATE data_files SET top_level = ?, updated_at = ? WHERE id = ?",
                     (json.dumps(top_level), now, df_id),
@@ -206,7 +207,7 @@ def sync_to_db(db, project_name: str, file_path: Path, data: dict) -> None:
                     if not isinstance(item, dict):
                         continue
                     seq_num = int(item.get(KEY_SEQUENCE_NUMBER, 0))
-                    now = __import__('time').time()
+                    now = time.time()
                     db.conn.execute(
                         "INSERT INTO sequences (data_file_id, sequence_number, data, updated_at) "
                         "VALUES (?, ?, ?, ?)",
@@ -216,7 +217,7 @@ def sync_to_db(db, project_name: str, file_path: Path, data: dict) -> None:
             # Sync history tree
             history_tree = data.get(KEY_HISTORY_TREE)
             if history_tree and isinstance(history_tree, dict):
-                now = __import__('time').time()
+                now = time.time()
                 db.conn.execute(
                     "INSERT INTO history_trees (data_file_id, tree_data, updated_at) "
                     "VALUES (?, ?, ?) "
@@ -237,10 +238,10 @@ def sync_to_db(db, project_name: str, file_path: Path, data: dict) -> None:
 
 def generate_templates(current_dir: Path) -> None:
     """Creates batch template files if folder is empty."""
-    first = DEFAULTS.copy()
+    first = copy.deepcopy(DEFAULTS)
     first[KEY_SEQUENCE_NUMBER] = 1
     save_json(current_dir / "batch_prompt_i2v.json", {KEY_BATCH_DATA: [first]})
 
-    first2 = DEFAULTS.copy()
+    first2 = copy.deepcopy(DEFAULTS)
     first2[KEY_SEQUENCE_NUMBER] = 1
     save_json(current_dir / "batch_prompt_vace_extend.json", {KEY_BATCH_DATA: [first2]})

web/project_dynamic.js

@@ -251,8 +251,8 @@ app.registerExtension({
             } else if (this.outputs.length > 1) {
                 // Widget values empty but serialized dynamic outputs exist — sync widgets
                 const dynamicOutputs = this.outputs.slice(1);
-                if (okWidget) okWidget.value = dynamicOutputs.map(o => o.name).join(",");
+                if (okWidget) okWidget.value = JSON.stringify(dynamicOutputs.map(o => o.name));
-                if (otWidget) otWidget.value = dynamicOutputs.map(o => o.type).join(",");
+                if (otWidget) otWidget.value = JSON.stringify(dynamicOutputs.map(o => o.type));
             }
 
             this.setSize(this.computeSize());