#!/bin/sh
set -e

# Inject container env into the static SPA at runtime. The app loads
# /runtime-env.js (see index.html) before its bundle.
#   FABRIC_OIDC_ONLY  - "true" hides the username/password login form
#   FIX_TO_CENTER     - non-empty pins the Center API base + hides its input
ONLY="false"
case "$(printf '%s' "${FABRIC_OIDC_ONLY:-}" | tr '[:upper:]' '[:lower:]')" in
  1|true|yes|on) ONLY="true" ;;
esac

# JSON-escape FIX_TO_CENTER (backslash + double-quote)
FIX="$(printf '%s' "${FIX_TO_CENTER:-}" | sed 's/\\/\\\\/g; s/"/\\"/g')"

cat > /usr/share/nginx/html/runtime-env.js <<EOF
window.__FABRIC_ENV__ = { oidcOnly: ${ONLY}, fixToCenter: "${FIX}" };
EOF

exec "$@"