#!/bin/sh
set -eu

runtime_config_path="/usr/share/nginx/html/runtime-config.js"
default_mode="${CONDO_DEFAULT_MODE:-api}"
api_base_url="${CONDO_API_BASE_URL:-/api}"
period_year="${CONDO_PERIOD_YEAR:-}"

escape_js_string() {
  printf '%s' "$1" | sed 's/\\/\\\\/g; s/"/\\"/g'
}

case "$period_year" in
  "" )
    period_year_expression="new Date().getUTCFullYear()"
    ;;
  *[!0-9]* )
    period_year_expression="new Date().getUTCFullYear()"
    ;;
  * )
    period_year_expression="$period_year"
    ;;
esac

default_mode_escaped="$(escape_js_string "$default_mode")"
api_base_url_escaped="$(escape_js_string "$api_base_url")"

cat > "$runtime_config_path" <<EOF
window.CONDO_RUNTIME_CONFIG = Object.freeze({
  defaultMode: "$default_mode_escaped",
  apiBaseUrl: "$api_base_url_escaped",
  periodYear: $period_year_expression
});
EOF