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Complete Phase 5: Implement snippet storage with localStorage, dynamic rendering, and error handling

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Oleh Omelchenko
2025-10-13 02:30:19 +03:00
parent 55a866a6df
commit 3daf324ef7
3 changed files with 220 additions and 29 deletions
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docs/dev-plan.md
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@@ -143,17 +143,28 @@ Astrolabe is a focused tool for managing, editing, and previewing Vega-Lite visu
---
### **Phase 5: Data Model + LocalStorage**
### **Phase 5: Data Model + LocalStorage** ✅ **COMPLETE**
**Goal**: Persist snippets and load them on page refresh
- [ ] Implement storage wrapper using Phase 0 schema
- [ ] Create localStorage functions (save, load, list, delete)
- [ ] Initialize with a default example snippet if storage is empty
- [ ] Populate snippet list panel from localStorage
- [ ] Handle localStorage errors/quota exceeded
- [x] Implement storage wrapper using Phase 0 schema
- [x] Create localStorage functions (save, load, list, delete)
- [x] Initialize with a default example snippet if storage is empty
- [x] Populate snippet list panel from localStorage
- [x] Handle localStorage errors/quota exceeded
**Deliverable**: Snippets persist across page reloads
**Key Achievements**:
- Created comprehensive `snippet-manager.js` with full Phase 0 schema implementation
- Implemented robust `SnippetStorage` wrapper with error handling and quota management
- Added ID generation using `Date.now() + random numbers` for uniqueness
- Implemented auto-naming with ISO datetime format (YYYY-MM-DD_HH-MM-SS)
- Built dynamic snippet list rendering with smart date formatting (relative dates)
- Added snippet selection functionality that loads specs into Monaco Editor
- Integrated default snippet initialization with sample Vega-Lite chart
- Removed hardcoded HTML snippets in favor of dynamic localStorage-based system
- Added proper script loading order and initialization sequence
---
### **Phase 6: Snippet Selection & Basic CRUD**
@@ -301,6 +312,7 @@ Astrolabe is a focused tool for managing, editing, and previewing Vega-Lite visu
│ ├── styles.css # Retro Windows 2000 aesthetic styling
│ └── js/ # Modular JavaScript organization
│ ├── config.js # Global variables & sample data
│ ├── snippet-manager.js # Snippet storage, CRUD & localStorage wrapper
│ ├── panel-manager.js # Panel resize, toggle & memory system
│ ├── editor.js # Monaco Editor & Vega-Lite rendering
│ └── app.js # Event handlers & coordination
@@ -326,10 +338,11 @@ Astrolabe is a focused tool for managing, editing, and previewing Vega-Lite visu
---
**Current Phase**: Phase 5 - Data Model + LocalStorage
**Current Phase**: Phase 6 - Snippet Selection & Basic CRUD
**Status**: Ready to begin implementation
**Completion Status**:
- ✅ Phases 0, 1, 2, 3, 4 complete
- ✅ Phases 0, 1, 2, 3, 4, 5 complete
- ✅ Code organization and cleanup complete
- 🎯 Ready for snippet management implementation
- ✅ Snippet storage infrastructure complete
- 🎯 Ready for auto-save and CRUD operations