* feat: support subdirectory deployment (NEXT_PUBLIC_BASE_PATH)
* removed unwanted check and fix favicon issue
* Use getAssetUrl for manifest assets to avoid undefined NEXT_PUBLIC_BASE_PATH
* Add validation warning for NEXT_PUBLIC_BASE_PATH format
---------
Co-authored-by: dayuan.jiang <jdy.toh@gmail.com>
* fix: Prevent DrawIO remount and data loss when resizing window across 768px breakpoint
* fix: prevent DrawIO remount and data loss when resizing window
- Move key from ResizablePanelGroup to chat-panel only
- Save diagram to localStorage before breakpoint change
- Restore defaultSize on drawio-panel to prevent layout flash
- Keep save button functionality from main
* fix: reset draw.io ready state on breakpoint change to restore diagram
* fix: skip initial render save and remove console logs
- Add isInitialRenderRef to skip unnecessary save/reset on first render
- Remove console.log statements for production cleanliness
- Add eslint-disable comment explaining loadDiagram dependency
---------
Co-authored-by: dayuan.jiang <jdy.toh@gmail.com>
- Add showSaveDialog state to DiagramContext for shared state
- Add mouse tracking to only respond to save events when mouse is over draw.io panel
- Prevents save dialog from opening when clicking Send in chat panel
- Add DialogDescription to SaveDialog for accessibility
- Lift showSaveDialog state to DiagramContext for sharing between components
- Add onSave handler to DrawIoEmbed that opens the save dialog
- Add guard (isSavingRef) with 1s delay to prevent repeated save events from draw.io
- Add deprecation notice to custom download button tooltip
Closes#93, Closes#290
## Summary
- Auto-saves diagram to localStorage before theme or UI style changes to prevent data loss
- Extracts inline handler to `handleDrawioUiChange` for cleaner code
- Renames `toggleDarkMode` to `handleDarkModeChange` for consistency
## Problem
Changing themes (dark/light) or draw.io UI styles (min/sketch) causes the DrawIoEmbed component to remount, losing all unsaved edits without warning.
## Solution
Added `saveDiagramToStorage()` function that exports the current diagram and saves it to localStorage before any theme/UI change. The existing restore mechanism then loads it back after remount.
## Related Issues
Fixes#243
Summary
- Adds browser theme detection on first visit using
prefers-color-scheme media query
- Renames localStorage key from dark-mode to
next-ai-draw-io-dark-mode for consistency with other keys
- Uses STORAGE_DIAGRAM_XML_KEY constant instead of hardcoded
string in diagram-context.tsx
Changes
app/page.tsx:
- On first visit (no saved preference), detect browser's color
scheme preference
- Update localStorage key to follow project naming convention
(next-ai-draw-io-*)
contexts/diagram-context.tsx:
- Import STORAGE_DIAGRAM_XML_KEY from chat-panel.tsx
- Replace hardcoded "next-ai-draw-io-diagram-xml" with the
constant
- Add validation to loadDiagram in diagram-context, returns error or null
- display_diagram and edit_diagram tools now check validation result
- Return error to AI agent with state: output-error so it can retry
- Skip validation for trusted sources (localStorage, history, internal templates)
- Add debug logging for tool call inputs to diagnose Bedrock API issues
- Save and restore chat messages, XML snapshots, session ID, and diagram XML to localStorage
- Restore diagram when DrawIO becomes ready (using new onLoad callback)
- Change close protection default to false since auto-save handles persistence
- Clear localStorage when clearing chat
- Handle edge cases: undefined edit fields, empty chartXML, missing access code header
- Add Biome as formatter and linter (replaces Prettier)
- Configure Husky + lint-staged for pre-commit hooks
- Add VS Code settings for format on save
- Ignore components/ui/ (shadcn generated code)
- Remove semicolons, use 4-space indent
- Reformat all files to new style
- Add Zod schema validation for log-feedback and log-save endpoints
- Create singleton LangfuseClient to avoid per-request instantiation
- Simplify log-save to only flag trace (no XML content sent)
- Use generic error messages to prevent info leakage
- Update log-feedback API to find existing chat trace by sessionId and attach score to it
- Update log-save API to create span on existing chat trace instead of standalone trace
- Add thumbs up/down feedback buttons on assistant messages
- Add message regeneration and edit functionality
- Add save dialog with format selection (drawio, png, svg)
- Pass sessionId through components for Langfuse linking
- Add handleExportWithoutHistory function for fetching current diagram state without saving to history
- Update onFetchChart to accept saveToHistory parameter (defaults to true)
- edit_diagram tool now fetches with saveToHistory=false since it only needs the current state
- Only the initial form submission saves to history as intended
- Add save button in chat input area with download icon
- Create SaveDialog component for filename input
- Export current diagram as .drawio file format
- Support custom filename with default timestamp-based name
Closes#53
When sending a message, the history was being added twice because:
1. handleExport() triggers exportDiagram() which adds to history
2. AI responds and loadDiagram() is called, which internally triggers
another export event in DrawIO, adding a duplicate entry
Added expectHistoryExportRef flag to track user-initiated exports and
only add to history when the export was explicitly requested.
