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

# Entrypoint: write `MAVEN_SETTINGS` or decode `MAVEN_SETTINGS_BASE64`
# into ~/.m2/settings.xml (MAVEN_SETTINGS_BASE64 takes precedence),
# then exec the container command.

M2_DIR="${HOME:-/root}/.m2"

if [[ -n "${MAVEN_SETTINGS_BASE64:-}" ]]; then
  mkdir -p "$M2_DIR"
  # Decode base64 content and write it. If decoding fails the script will error.
  printf '%s' "$MAVEN_SETTINGS_BASE64" | base64 -d > "$M2_DIR/settings.xml"
  chmod 644 "$M2_DIR/settings.xml" || true
elif [[ -n "${MAVEN_SETTINGS:-}" ]]; then
  mkdir -p "$M2_DIR"
  # Write the variable contents exactly as provided
  printf '%s' "$MAVEN_SETTINGS" > "$M2_DIR/settings.xml"
  chmod 644 "$M2_DIR/settings.xml" || true
fi

if [[ "$#" -eq 0 ]]; then
  exec "$SHELL" || exec /bin/sh
fi

exec "$@"