Add desktop persistent cache, offline circuit-breaker states, and panel freshness badges by koala73 · Pull Request #48 · koala73/worldmonitor

koala73 · 2026-02-13T05:46:13Z

Motivation

Ensure the app remains useful when cloud APIs are unreachable by providing durable local fallbacks and clearer UI indicators for stale/offline data.
Persist recent feed items, latest computed risk snapshots, and stale-tolerant map overlays for desktop builds so a packaged app can operate without network.
Surface data freshness and whether values are live, cached, or unavailable in panels so analysts understand what they are seeing.

Description

Add a desktop-aware persistent cache service (src/services/persistent-cache.ts) that uses Tauri invoke commands (read_cache_entry / write_cache_entry) with localStorage as a fallback for non-desktop runtimes.
Extend the Tauri backend (src-tauri/src/main.rs) to provide file-backed JSON cache storage under app data and register read_cache_entry and write_cache_entry handlers.
Wire persistent fallbacks into runtime services: RSS feeds (src/services/rss.ts), cached risk scores (src/services/cached-risk-scores.ts), earthquake overlay data (src/services/earthquakes.ts), and the Insights world-brief snapshot (src/components/InsightsPanel.ts).
Enhance circuit-breaker semantics in src/utils/circuit-breaker.ts to track BreakerDataState (modes: live / cached / unavailable) and detect desktop offline mode so callers can show more precise status and use cached fallbacks.
Add panel-level data-state badges and helpers in src/components/Panel.ts and apply them to NewsPanel, InsightsPanel, and StrategicRiskPanel, plus styling in src/styles/main.css.
Include static resources in desktop bundle config by adding ../data and ../src/config to src-tauri/tauri.conf.json so pre-bundled datasets are available in production desktop builds.

Testing

Ran npm run typecheck (tsc --noEmit) which completed successfully.
Started the dev server and exercised the UI; captured a screenshot demonstrating panel freshness badges (artifact recorded during the run).
cargo check could not complete in this environment due to network/crates.io access being blocked (error: CONNECT tunnel failed / 403), so native Rust/Tauri build verification was not possible here.

Codex Task

vercel · 2026-02-13T05:46:15Z

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Project	Deployment	Actions	Updated (UTC)
worldmonitor	Ready	Preview, Comment	Feb 13, 2026 6:05am
worldmonitor-startup	Ready	Preview, Comment	Feb 13, 2026 6:05am
worldmonitor-test	Ready	Preview, Comment	Feb 13, 2026 6:05am

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chatgpt-codex-connector · 2026-02-13T05:49:45Z

+    let mut root: Map<String, Value> = if path.exists() {
+        let contents = std::fs::read_to_string(&path)
+            .map_err(|e| format!("Failed to read cache store {}: {e}", path.display()))?;
+        serde_json::from_str::<Value>(&contents)
+            .ok()


Serialize cache writes under a lock

write_cache_entry performs an unsynchronized read-modify-write of a single JSON file, so concurrent invoke('write_cache_entry', ...) calls can overwrite each other and drop previously written keys. This can happen during normal startup because multiple services (rss, earthquakes, cached-risk-scores, insights brief) call setPersistentCache in parallel, making persisted fallback data nondeterministically incomplete.

Useful? React with 👍 / 👎.

chatgpt-codex-connector · 2026-02-13T05:49:45Z

    }));
  }, []);
+
+  if (live.length > 0) {


Preserve successful empty earthquake payloads

This branch treats live.length === 0 as a failure and always falls back to persisted data, so a successful USGS response with zero events (or a valid cached empty result from the breaker) gets replaced with stale historical quakes. That makes the map show outdated incidents instead of the current empty state and prevents the empty snapshot from ever being persisted.

Useful? React with 👍 / 👎.

chatgpt-codex-connector · 2026-02-13T05:49:45Z

 const CACHE_TTL = 10 * 60 * 1000; // 10 minutes

+function toSerializable(items: NewsItem[]): Array<Omit<NewsItem, 'pubDate'> & { pubDate: string }> {
+  return items.map(item => ({ ...item, pubDate: item.pubDate.toISOString() }));


Handle invalid RSS dates before ISO serialization

Persisting feed items now calls item.pubDate.toISOString() unconditionally, but malformed RSS pubDate values produce Invalid Date, and toISOString() throws RangeError. In that case fetchFeed drops into the catch path and returns stale/persistent/empty data even though parsing otherwise succeeded, so a single bad timestamp can suppress an entire feed update.

Useful? React with 👍 / 👎.

…el freshness badges (koala73#48) ### Motivation - Ensure the app remains useful when cloud APIs are unreachable by providing durable local fallbacks and clearer UI indicators for stale/offline data. - Persist recent feed items, latest computed risk snapshots, and stale-tolerant map overlays for desktop builds so a packaged app can operate without network. - Surface data freshness and whether values are `live`, `cached`, or `unavailable` in panels so analysts understand what they are seeing. ### Description - Add a desktop-aware persistent cache service (`src/services/persistent-cache.ts`) that uses Tauri `invoke` commands (`read_cache_entry` / `write_cache_entry`) with `localStorage` as a fallback for non-desktop runtimes. - Extend the Tauri backend (`src-tauri/src/main.rs`) to provide file-backed JSON cache storage under app data and register `read_cache_entry` and `write_cache_entry` handlers. - Wire persistent fallbacks into runtime services: RSS feeds (`src/services/rss.ts`), cached risk scores (`src/services/cached-risk-scores.ts`), earthquake overlay data (`src/services/earthquakes.ts`), and the Insights world-brief snapshot (`src/components/InsightsPanel.ts`). - Enhance circuit-breaker semantics in `src/utils/circuit-breaker.ts` to track `BreakerDataState` (modes: `live` / `cached` / `unavailable`) and detect desktop offline mode so callers can show more precise status and use cached fallbacks. - Add panel-level data-state badges and helpers in `src/components/Panel.ts` and apply them to `NewsPanel`, `InsightsPanel`, and `StrategicRiskPanel`, plus styling in `src/styles/main.css`. - Include static resources in desktop bundle config by adding `../data` and `../src/config` to `src-tauri/tauri.conf.json` so pre-bundled datasets are available in production desktop builds. ### Testing - Ran `npm run typecheck` (`tsc --noEmit`) which completed successfully. - Started the dev server and exercised the UI; captured a screenshot demonstrating panel freshness badges (artifact recorded during the run). - `cargo check` could not complete in this environment due to network/crates.io access being blocked (error: CONNECT tunnel failed / 403), so native Rust/Tauri build verification was not possible here. ------ [Codex Task](https://chatgpt.com/codex/tasks/task_e_698eb89d5b448333b14174125f76d3c4)

Add desktop offline cache persistence and freshness badges

2f241e7

koala73 added the codex label Feb 13, 2026 — with ChatGPT Codex Connector

vercel Bot deployed to Preview – worldmonitor-test February 13, 2026 05:46 View deployment

vercel Bot deployed to Preview – worldmonitor February 13, 2026 05:46 View deployment

vercel Bot deployed to Preview – worldmonitor-startup February 13, 2026 05:46 View deployment

chatgpt-codex-connector Bot reviewed Feb 13, 2026

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Fix freshness badge state transitions for cached summaries

5ed521d

vercel Bot deployed to Preview – worldmonitor February 13, 2026 06:04 View deployment

vercel Bot deployed to Preview – worldmonitor-test February 13, 2026 06:04 View deployment

vercel Bot deployed to Preview – worldmonitor-startup February 13, 2026 06:05 View deployment

koala73 merged commit f52f4fd into codex/add-tauri-v2-integration-and-configuration Feb 13, 2026
4 checks passed

koala73 deleted the codex/add-fallback-logic-for-unavailable-apis branch February 15, 2026 08:09

SebastienMelki added the area: desktop Tauri desktop app label Feb 17, 2026

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Add desktop persistent cache, offline circuit-breaker states, and panel freshness badges#48

Add desktop persistent cache, offline circuit-breaker states, and panel freshness badges#48
koala73 merged 2 commits into
codex/add-tauri-v2-integration-and-configurationfrom
codex/add-fallback-logic-for-unavailable-apis

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koala73 commented Feb 13, 2026

Motivation

Description

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