WeatherTool/docs/README.md

WeatherTool project documentation

This directory contains the working documentation for the WeatherTool modernization effort. The repository-root README.md is preserved as the original project overview; these documents describe the reviewed code, current staging environment, and changes being developed.

Current status

• Windows is restricted to source editing, review, and Git operations. Rocky is the sole compile, build, development-runtime, and test environment. The Ubuntu VPS is a deployment target only.
• A production-like staging copy runs through Docker Compose on Rocky Linux at http://192.168.1.101:9190.
• Both Rocky and the VPS currently run on the free data.gov.lv open-data feed only. Real private FTP credentials (ftp.meteo.lv) were obtained 2026-08-23 and the code path is proven working (manual tests succeeded repeatedly, including once from Rocky as recently as 2026-08-24 morning), but enabling the scheduled fetch has failed unpredictably on both machines at different times, for reasons not yet understood — see the roadmap Phase 7 for the full timeline. ENABLE_LVGMC_FTP_JOBS stays false everywhere until the LVGMC contact can explain the account's actual connection/rate policy. DMI HARMONIE's credentials turned out not to be needed at all (DMI dropped its API key requirement — confirmed live, see the roadmap changelog) but wiring it up is deferred to a dedicated verification session, since the GRIB-parsing and map-rendering code has real, untested risk (a hardcoded crop/rotation calibration that may not match the current model grid).
• A real UTC-vs-local timezone mismatch between the two sources (open-data's timestamps were UTC, FTP's already local, both stored in the same column with no conversion) was found and fixed before enabling both together; both weather tables were backed up and wiped for a clean, consistently-timestamped restart.
• The safe scheduled jobs (open-data station ingestion, GRIB cleanup) always run; the FTP job now runs too since real credentials exist; HARMONIE's job stays off pending its own implementation work.
• PostgreSQL is private to the project Compose network; only the Scala application publishes a host port.
• The operator-facing workspaces now use the Latvian workflow names Stacijas, Kartes, Faktiskā, Ūdens, Brīdinājumi, Apskats, Arhīvs, Harmonie, and LVĢMC. Kartes retains custom analytical map outputs, while Faktiskā is a fixed 13-position, latest-temperature newsroom workflow with a locked 3840×1440 export.
• Faktiskā symbol placement is automatic after manual image selection and is anchored to each rendered temperature badge.
• Ūdens auto-populates its six ranges on load with real per-zone water-temperature min/max (65 LVĢMC stations classified into the 6 named zones), with manual override and reset still available. Uses separate authoritative 1920×1080 and 3840×1440 production templates; both exports have been visually validated.
• Brīdinājumi renders current LVĢMC warning polygons over a production border overlay with feathered severity fills, plus draggable/resizable per-warning weather-symbol placement. Its lon/lat-to-pixel projection is an affine fit calibrated against the same validated city pixel positions Kartes/Faktiskā already use, replacing an earlier bounding-box calibration that drifted up to ~200px on the 3840 canvas.
• Confirmed local Monda Regular/Bold files provide interface and generated-graphic typography; weather symbols use normalized transparent image assets.
• Release b0b58d2 is deployed as immutable image weathertool:b0b58d2f1e0ed47ca13795b64595386ec2f0e0c7; release 3eddf95 remains the immediate application rollback. On top of the earlier frontend design pass and the timezone/upsert/scheduler-split fixes, this release replaces the hardcoded per-route static-file list with a general SPA fallback — a real, user-reported bug where refreshing /faktiska or /udens-temperatura 404ed instead of loading the app (those two routes were never added to the old list). A missing /assets file still 404s properly rather than silently serving HTML.
• FTP (ENABLE_LVGMC_FTP_JOBS) is currently false on both Rocky and the VPS — re-testing the morning after enabling it turned up a second, unexplained failure (Rocky alone, VPS confirmed off, ~4 minutes after a successful manual test) that doesn't fit the original two-machine-collision theory. Decided to stop self-testing via trial and error and wait for the user to ask the LVGMC contact directly about the ltv account's connection/rate policy, rather than risk repeatedly tripping an unknown limit. See the roadmap Phase 7 for the full diagnosis timeline.
• The isolated VPS UAT stack is running and healthy: WeatherTool is bound to 127.0.0.1:8002, Authelia to 127.0.0.1:9091, and PostgreSQL has no host port. Public access is routed through Cloudflare, Nginx, and Authelia.
• Cloudflare delegation is active, strict origin TLS covers only laikapstak.li and auth.laikapstak.li, and the public Nginx/Authelia login flow is operational without changing the existing HOP site.
• The VPS weather table was wiped twice on 2026-08-23: first to remove the original 14-day synthetic dataset (backed up to /srv/weathertool/backups/pre-real-data-release/), then again after the UTC/local timezone fix (backed up to /srv/weathertool/backups/pre-timezone-fix-wipe/) so the two real sources it now holds — open-data (minutes 15/45) and FTP (minutes 11/13/23/30) — are consistently timestamped from a clean start.
• Approved 1920×1080 and 3840×1440 PNG production bases are now the rendering source for Faktiskā and Ūdens temperatūra; code draws only the changing values, selected weather symbols, and wind data over those fixed newsroom graphics.
• Browser branding assets and Latvian Open Graph/Twitter metadata are included for favicon, Apple home-screen icon, and link-preview support. Public crawler access still depends on the Nginx/Authelia policy used for the metadata and preview image.
• Browser and API verification is complete for the deployed 3eddf95 release: exact release image smoke-tested on Rocky before transfer (bundle hash and correct-local-time API responses matched the known-good local build), checksum verified on both ends, container health/loopback/public HTTPS confirmed.
• Every FTP failure so far has cascaded through parMapN into the app's top-level error handler, crash-looping the entire app in-process (DB, HTTP server, schedulers all torn down and rebuilt every ~5s) rather than just failing the one scheduled task — caught twice by watching logs after enabling the flag rather than assuming it was safe, reverted both times within minutes.
• Frontend dependency maintenance is complete: Solid runtime and Vite tooling were updated, obsolete packages were removed, TypeScript checking was added, and a clean Rocky npm ci, typecheck, production build, full audit, and production-only audit all pass with zero known vulnerabilities.
• This is not yet approved or hardened for workplace production.

Documents

• Architecture and data flow — components, data sources, data flow, and repository layout.
• Development and staging — Windows source/Git workflow, Rocky development and verification, VPS deployment, synthetic data, and rollback.
• Product workflows — the intended purpose and current status of each visible workspace.
• Update roadmap — phased technical, security, dependency, testing, and UI work.
• Third-party notices — licenses and attribution for adapted interface components.
• Temporary VPS staging plan — isolation, authentication, prepared deployment bundle, release, backup, verification, and rollback model for external user testing.

Documentation rules

1. Do not put passwords, API keys, workplace URLs, or production data in Git.
2. Document the behavior that exists separately from behavior that is proposed.
3. Update these documents in the same commit when a change alters deployment, data flow, or a user workflow.
4. Keep synthetic/development instructions clearly distinguished from workplace production procedures.
5. Preserve established Latvian names in operator-facing workspaces and production files even when development notes are written in English.