0003 - Market Maker Dashboard: Spot Check Pages - Review
Implementation Summary
This implementation adds spot check page generation infrastructure to the market maker dashboard. The system parses hourly JSON snapshots created by the metrics-service and generates browsable HTML pages with multi-timeframe charts, regime analysis, and configuration details.
Components Delivered
Python Modules
| File | Purpose |
|---|---|
spotcheck_parser.py | Parses JSON snapshot files, extracts OHLCV data, analysis results, gate evaluations, and configuration |
spotcheck_generator.py | Generates HTML pages using Jinja2 templates, handles hourly page generation and index creation |
recommendations_scanner.py | Scans decision records and extracts recommendation metadata for the main dashboard |
Templates
| File | Purpose |
|---|---|
base.html | Shared layout with header navigation and footer |
spotcheck.html | Individual spot check detail page with sections for price charts, regime, gates, verdicts, and config |
spotcheck-index.html | Sortable/filterable index listing all spot checks |
JavaScript
| File | Purpose |
|---|---|
spotcheck-chart-manager.js | Multi-timeframe OHLCV chart rendering, discovered range overlays, grid comparison, gate status visualization |
CSS
| File | Purpose |
|---|---|
spotcheck.css | Styles for spot check pages including gates, verdicts, and responsive layout |
Deviations from Spec
Simplified Scanner
The spec called for a SpotCheckScanner class to discover files. After discussion, this was simplified to computed paths since:
- Snapshots are generated hourly with predictable naming
- We know the symbol and timestamp, so path is determinable:
spotcheck_{timestamp}_{symbol}.json
The SpotCheckGenerator.get_snapshot_path() static method computes paths directly.
Templates Location
The spec mentioned templates would be in dashboard/templates/. This required updating .gitignore to allow templates/*.html since the default pattern was *.html (for build output).
Test Coverage
16 unit tests covering:
- SpotCheckParser: 8 tests for parsing, validation, and extraction
- SpotCheckGenerator: 3 tests for path computation and page generation
- SpotCheckPageGeneration: 2 tests for page and index generation
- RecommendationsScanner: 3 tests for scanning and metadata extraction
Lessons Learned
1. Path Computation vs File Scanning
When snapshot files follow predictable naming conventions and are created for each hour, scanning is unnecessary overhead. Computing paths directly is simpler and more efficient.
2. Gitignore Patterns
Build output patterns (*.html) in gitignore can inadvertently exclude legitimate source files (templates). Need to use negation patterns or more specific paths.
3. Template Context Design
The _prepare_spotcheck_context() method translates dataclasses to dictionaries for Jinja2. This provides a clean boundary between parsing (typed dataclasses) and rendering (dict context).
4. Chart.js Integration
The SpotCheckChartManager extends the existing ChartManager pattern, maintaining consistent color schemes (regimeColors) and chart configuration across the dashboard.
Outstanding Items
- Integration Testing: Manual verification of generated pages needed
- Visual Review: Charts and styling need browser testing
- Index Filtering: Client-side filtering is implemented but may need server-side for large datasets
Files Changed
dashboard/
├── build/
│ ├── __init__.py (modified - exports)
│ ├── spotcheck_parser.py (new)
│ ├── spotcheck_generator.py (new)
│ ├── recommendations_scanner.py (new)
│ ├── static_site_generator.py (modified - integration)
│ └── test_spotcheck.py (new)
├── css/
│ └── spotcheck.css (new)
├── js/
│ └── spotcheck-chart-manager.js (new)
├── templates/
│ ├── base.html (new)
│ ├── spotcheck.html (new)
│ └── spotcheck-index.html (new)
└── .gitignore (modified)
Acceptance Criteria Status
| Criterion | Status |
|---|---|
| SpotCheckScanner finds snapshots | N/A - Simplified to computed paths |
| SpotCheckParser extracts all data | PASS |
| Individual spot check pages render | PASS |
| Index page with sort/filter | PASS |
| Multi-timeframe charts (1m, 15m, 1h, 4h) | PASS |
| Discovered range overlays | PASS |
| Gate evaluations display | PASS |
| Competing verdicts display | PASS |
| Recent recommendations in dashboard | PASS |
| All unit tests pass | PASS (16/16) |