Thor Watcher

Version: 0.3.1

Micromate (Series 4) watcher agent for Terra-View fleet management. Runs as a Windows system tray application, scans THORDATA for Micromate unit activity, sends heartbeat data to Terra-View, and (optionally) forwards .IDFH/.IDFW event files to a seismo-relay SFM server.

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Overview

Thor Watcher monitors C:\THORDATA\<Project>\<UM####>\*.MLG files, determines each unit's last activity from the MLG filename timestamp, and periodically posts a heartbeat payload to the Terra-View backend. It runs silently in the system tray and auto-starts on login.

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Installation

1. Run thor-watcher-setup.exe
2. On first launch the setup wizard will appear — enter your THORDATA path and Terra-View URL
3. The app starts in the system tray and launches automatically on login

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Building from Source

Requires Python 3.10+ and pip on PATH.

build.bat

Produces:

• dist\thor-watcher-0.3.1.exe — upload to Gitea release
• dist\thor-watcher.exe — use with Inno Setup

Then run Inno Setup Compiler on installer.iss to produce thor-watcher-setup.exe.

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Configuration

Config is stored at:

%LOCALAPPDATA%\ThorWatcher\config.json

Managed through the Settings dialog (right-click tray icon → Settings). A config.example.json is included as reference.

Config Keys

Key	Type	Default	Description
thordata_path	string	C:\THORDATA	Root THORDATA directory
scan_interval	integer	60	Seconds between scans
api_url	string	""	Terra-View heartbeat URL (e.g. http://10.0.0.40:8000/api/series4/heartbeat)
api_timeout	integer	5	HTTP request timeout in seconds
api_interval	integer	300	Seconds between API heartbeat POSTs
source_id	string	hostname	Identifier for this machine in Terra-View
source_type	string	series4_watcher	Agent type (do not change)
local_timezone	string	America/New_York	Timezone of the field machine — used to convert MLG timestamps to UTC
enable_logging	boolean	true	Write log file
log_file	string	%LOCALAPPDATA%\ThorWatcher\agent_logs\thor_watcher.log	Log file path
log_retention_days	integer	30	Days before log is auto-cleared
update_source	string	gitea	Auto-update source: gitea, url, or disabled
update_url	string	""	Base URL for url mode (e.g. Terra-View server)
sfm_forward_enabled	boolean	false	Forward .IDFH/.IDFW event files to a seismo-relay SFM server
sfm_url	string	""	Base URL of the seismo-relay SFM server (e.g. http://10.0.0.44:8200)
sfm_forward_interval	integer	60	Seconds between forwarder passes
sfm_quiescence_seconds	integer	5	Skip files modified within the last N seconds (avoid in-flight files)
sfm_missing_report_grace_seconds	integer	60	Forward a binary without its .txt sidecar if it hasn't appeared after N seconds
sfm_http_timeout	integer	60	HTTP timeout per forward POST
sfm_state_file	string	""	Path to the sha256-keyed state file. Blank → <log_dir>\thor_forwarded.json
sfm_max_forwards_per_pass	integer	500	Cap per pass to drip-feed large backfills
sfm_max_event_age_days	integer	365	Skip event files older than this many days

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Event Forwarding

When sfm_forward_enabled is true and sfm_url is set, Thor Watcher walks the THORDATA tree each sfm_forward_interval seconds, finds .IDFH (histogram) and .IDFW (waveform) event binaries plus their TXT/<basename>.txt ASCII sidecars, and POSTs them to seismo-relay's /db/import/idf_file endpoint.

• Idempotent. Every forwarded file is recorded by sha256 in thor_forwarded.json. Re-scans never re-POST.
• Default off. Operators must explicitly enable from the Settings → SFM Forward tab.
• Re-pair logic. If a binary is forwarded before its TXT sidecar appears (after the grace period), it's flagged had_report=false and re-forwarded once the TXT arrives so the SFM database row can be refreshed with device-authoritative PPV/ZCFreq/peak values.
• TXT export must be enabled in Thor. Thor's TXT sidecars are not produced automatically — operators should enable TXT export so the relay can extract rich metadata. Forwards without a TXT are still useful (binary gets indexed; rich fields stay NULL).
• Backfill seeding. To skip a large historical archive on first deploy, run python event_forwarder.py --seed-state --thordata C:\THORDATA --state <state file> before flipping the switch.

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Tray Icon Colors

Color	Meaning
Green	Running, API reporting OK (and SFM forwarder healthy when enabled)
Amber	Running, API disabled OR SFM forwarder failing while API is healthy
Red	Running, API failing
Purple	Error — check logs
Grey	Starting up

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Auto-Updater

Thor Watcher checks for updates every ~5 minutes. When a new release is found it downloads and validates the exe, then relaunches via a swap bat — no manual intervention needed.

Update sources:

• gitea — checks the Gitea release page (default)
• url — fetches version.txt and thor-watcher.exe from a custom server (e.g. Terra-View)
• disabled — no automatic checks; remote push from Terra-View still works

Download validation: 100 KB minimum size, 50% relative size floor vs current exe, MZ magic bytes check.

Remote update push from Terra-View Watcher Manager works regardless of update_source setting.

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Heartbeat Payload

Posted to api_url on each API interval:

{
  "source_id": "THOR-PC",
  "source_type": "series4_watcher",
  "version": "0.3.1",
  "generated_at": "2026-03-20T14:30:00Z",
  "log_tail": ["...last 25 log lines..."],
  "units": [
    {
      "unit_id": "UM11719",
      "last_call": "2026-03-20T13:18:00Z",
      "age_minutes": 72,
      "mlg_path": "C:\\THORDATA\\Project A\\UM11719\\UM11719_20260320131800.MLG",
      "project_hint": "Project A"
    }
  ]
}

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THORDATA Directory Structure

C:\THORDATA\
├── Project A\
│   ├── UM11719\
│   │   ├── UM11719_20260320131800.MLG
│   │   └── UM11719_20260319095430.MLG
│   └── UM12345\
│       └── UM12345_20260318091530.MLG
└── Project B\
    └── UM98765\
        └── UM98765_20260301082215.MLG

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Troubleshooting

Tray icon is amber: API URL is not configured or disabled — open Settings and enter Terra-View URL.

Tray icon is red: API is failing — check Terra-View is reachable, URL is correct, and the network is up.

Units showing wrong time in Terra-View: Check local_timezone in Settings matches the field machine's timezone.

No units found: Verify thordata_path is correct and MLG files exist following the UM####_YYYYMMDDHHMMSS.MLG naming convention.

Auto-updater not working: Check the log file for [updater] lines. On first deploy, verify the Gitea release has a thor-watcher-X.X.X.exe asset (not a setup exe).

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Version History

See CHANGELOG.md for detailed version history.

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Proprietary — Terra-Mechanics Inc. Internal use only.