#!/usr/bin/env bash
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PY_SCRIPT="${WEATHER_REPORT_PY_SCRIPT:-$SCRIPT_DIR/weather-day-report.py}"
TOKEN_FILE="${GRAFANA_TOKEN_FILE:-/mnt/user/appdata/secrets/monitoring_grafana_weather_report_token.txt}"
PY_IMAGE="${WEATHER_REPORT_PY_IMAGE:-python:3.13-alpine}"

if command -v python3 >/dev/null 2>&1; then
  exec python3 "$PY_SCRIPT" "$@"
fi

if ! command -v docker >/dev/null 2>&1; then
  echo "weather-day-report: neither python3 nor docker is available" >&2
  exit 1
fi

if [ ! -f "$TOKEN_FILE" ]; then
  echo "weather-day-report: token file missing: $TOKEN_FILE" >&2
  exit 1
fi

exec docker run --rm \
  --network host \
  -v "$PY_SCRIPT:/weather-day-report.py:ro" \
  -v "$TOKEN_FILE:/run/secrets/grafana_weather_report_token:ro" \
  -e GRAFANA_TOKEN_FILE=/run/secrets/grafana_weather_report_token \
  -e GRAFANA_URL="${GRAFANA_URL:-https://monitoring.kaleschke.info}" \
  -e WEATHER_REPORT_TZ="${WEATHER_REPORT_TZ:-Europe/Berlin}" \
  "$PY_IMAGE" \
  python /weather-day-report.py "$@"