Claude
5810ab0194
Drops clear/cloudy/fog/windy and the wind-speed override — those conditions sound the same on the recordings, so they don't earn a tag. Also renames "rainshower" → "rainstorm" and rebalances the rain mapping so 503/504/522 (extreme + heavy showers) get the storm tag. Final vocabulary: thunderstorm, rain, rainstorm, snow, snowstorm. Anything else falls through to the un-tagged filename.
75 lines
3.9 KiB
Bash
Executable File
75 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# weather-tag.sh — print a one-word weather tag for the current moment at
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# (LATITUDE, LONGITUDE), using the OpenWeather "Current weather" endpoint.
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#
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# Output: a single lowercase word from this fixed vocabulary, or empty:
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# thunderstorm rain rainstorm snow snowstorm
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#
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# Only conditions that change the audio character get a tag. Cloud, fog,
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# clear, and wind sound essentially the same on the recordings, so they fall
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# through to the un-tagged filename.
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#
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# Used by ambient-record.sh to suffix each 30-minute chunk's filename so the
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# file collection self-documents what the audio actually captured.
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#
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# Failure-safe: if WEATHER_ENABLED≠true, the API key is missing, the network
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# is down, the API returns an error, or the response can't be parsed, this
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# script prints NOTHING and exits 0. Callers MUST treat empty output as
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# "no tag — fall back to the un-tagged filename". Never blocks the recorder.
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#
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# Required setup:
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# 1. Sign up at https://openweathermap.org/api → free "Current weather" plan
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# 2. Put the key in .env: OPENWEATHER_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxx
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# 3. Confirm LATITUDE / LONGITUDE are set in .env (already needed by sunrise.py)
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# 4. Flip WEATHER_ENABLED=true in sky-cam.conf
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#
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# Manual test: ./weather-tag.sh (prints e.g. "rain" or nothing)
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set -uo pipefail # NOT -e: we want to swallow every failure into "no tag"
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SCRIPT_DIR="$(dirname "$(realpath "$0")")"
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source "$SCRIPT_DIR/sky-cam.conf" 2>/dev/null || exit 0
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source "$SCRIPT_DIR/.env" 2>/dev/null || true
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[ "${WEATHER_ENABLED:-false}" = "true" ] || exit 0
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[ -n "${OPENWEATHER_API_KEY:-}" ] || exit 0
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[ -n "${LATITUDE:-}" ] || exit 0
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[ -n "${LONGITUDE:-}" ] || exit 0
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# ── Fetch current conditions ─────────────────────────────────────────────────
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# 5s connect / 8s total — must never delay the recorder noticeably.
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url="https://api.openweathermap.org/data/2.5/weather?lat=${LATITUDE}&lon=${LONGITUDE}&appid=${OPENWEATHER_API_KEY}&units=metric"
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resp=$(curl -s --connect-timeout 5 --max-time 8 "$url" 2>/dev/null) || exit 0
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[ -n "$resp" ] || exit 0
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# ── Parse primary condition ID ───────────────────────────────────────────────
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# Condition codes: https://openweathermap.org/weather-conditions
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# OpenWeather may return multiple entries in weather[]; the first is primary.
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if command -v jq >/dev/null 2>&1; then
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code=$(echo "$resp" | jq -r '.weather[0].id // empty' 2>/dev/null)
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else
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# Fallback parser if jq is missing — grabs the first "id":NNN it sees.
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code=$(echo "$resp" | grep -oE '"id":[0-9]+' | head -n1 | grep -oE '[0-9]+')
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fi
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[ -n "${code:-}" ] || exit 0
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# ── Map condition code → tag (vocabulary documented at top of file) ──────────
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# Only audio-relevant precipitation gets a tag. Group ranges follow
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# OpenWeather's published condition-code table:
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# 2xx thunder / 3xx drizzle / 5xx rain / 6xx snow
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# All other groups (7xx atmosphere, 8xx clouds/clear) → no tag.
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tag=""
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case "$code" in
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2*) tag="thunderstorm" ;;
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781) tag="thunderstorm" ;; # tornado → strongest tag
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3*) tag="rain" ;; # drizzle
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500|501|502|511|520|521|531) tag="rain" ;; # light → heavy + freezing + showers
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503|504|522) tag="rainstorm" ;; # very heavy / extreme / heavy shower
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600|601|611|612|613|615|616|620|621) tag="snow" ;; # light → moderate + sleet variants
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602|622) tag="snowstorm" ;; # heavy snow / heavy shower snow
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*) tag="" ;; # everything else → no tag
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esac
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[ -n "$tag" ] && printf '%s' "$tag"
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exit 0
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