- Implements `toLightweightVideo` helper in `js/services/exploreDataService.js` to strip large fields (content, signatures, etc.) from video objects before sending to the worker.
- Updates `buildWatchHistoryTagCounts` and `buildTagIdf` to use lightweight objects.
- Adds `tests/services/exploreDataService.optimization.test.mjs` to verify correctness.
- Adds `benchmarks/worker_transfer_lightweight_bench.js` demonstrating ~40% improvement in transfer time.
Co-authored-by: PR0M3TH3AN <[email protected]>
- Introduce `js/constants.js` with semantic time constants (e.g., `ONE_MINUTE_MS`, `STANDARD_TIMEOUT_MS`) and feature-specific TTLs.
- Export `KIND_MUTE_LIST` from `js/nostrEventSchemas.js` to standardize NIP-51 mute list kind usage.
- Refactor `js/state/cache.js`, `js/nostr/cachePolicies.js`, `js/channelProfile.js`, and various services to use centralized constants instead of hardcoded magic numbers.
- Update `js/nostr/relayConstants.js` to derive values from the shared time constants.
- Replace duplicate definitions of timeouts and retry delays across the codebase.
Co-authored-by: PR0M3TH3AN <[email protected]>
- Moved heavy tag counting and IDF calculation to `js/workers/exploreData.worker.js`.
- Extracted `collectVideoTags` to `js/utils/videoTags.js` (preserved original behavior).
- Extracted pointer normalization logic to `js/utils/pointerNormalization.js`.
- Refactored `js/services/exploreDataService.js` to use the worker.
- Added benchmark test `tests/benchmark-explore-data.spec.mjs`.
Measured Improvement:
- `buildTagIdf` execution time on main thread reduced from ~130ms blocking to ~0ms blocking (141ms total async time).
- Unblocks UI during periodic data refreshes.
Co-authored-by: PR0M3TH3AN <[email protected]>
- Implemented a module-level `WeakMap` to cache the results of `collectVideoTags` keyed by video object.
- This avoids repetitive tag parsing and normalization for the same video objects during `buildTagIdf` and `buildWatchHistoryTagCounts` cycles.
- Measured ~20% performance improvement on repeated calls in benchmark.
- Verified correctness with unit test covering cache hits and object mutations (simulated).
Co-authored-by: PR0M3TH3AN <[email protected]>
- Refactor `AmbientBackground` to use `ResizeObserver` instead of polling layout in animation loop.
- Implement async chunking for `ExploreDataService` to prevent main thread blocking during heavy calculations.
- Throttle `UrlHealthController` video probes to a maximum of 3 concurrent requests to prevent resource exhaustion.
- Document optimization tasks in `OPTIMIZATION_TASKS.md`.
Co-authored-by: PR0M3TH3AN <[email protected]>
