#!/bin/sh
set -eu

DEFAULT_CONFIG_DIR="/xteve/config"
LEGACY_CONFIG_DIRS="/config /xteve /home/xteve/.xteve"

resolve_config_dir() {
  if [ -n "${XTEVE_CONFIG:-}" ] && [ "${XTEVE_CONFIG}" != "${DEFAULT_CONFIG_DIR}" ]; then
    printf "%s" "${XTEVE_CONFIG}"
    return
  fi

  if [ -f "${DEFAULT_CONFIG_DIR}/settings.json" ]; then
    printf "%s" "${DEFAULT_CONFIG_DIR}"
    return
  fi

  for dir in ${LEGACY_CONFIG_DIRS}; do
    if [ -f "${dir}/settings.json" ]; then
      printf "%s" "${dir}"
      return
    fi
  done

  printf "%s" "${DEFAULT_CONFIG_DIR}"
}

copy_if_missing() {
  src="$1"
  dst="$2"

  if [ -e "${src}" ] && [ ! -e "${dst}" ]; then
    cp -R "${src}" "${dst}"
  fi
}

settings_initialized() {
  file="$1"

  if [ ! -s "${file}" ]; then
    return 1
  fi

  if grep -q '"uuid"' "${file}" 2>/dev/null; then
    return 0
  fi

  return 1
}

CONFIG_DIR="$(resolve_config_dir)"
PORT="${XTEVE_PORT:-34400}"

mkdir -p "${CONFIG_DIR}"

if ! settings_initialized "${CONFIG_DIR}/settings.json"; then
  for legacy_dir in ${LEGACY_CONFIG_DIRS}; do
    if [ "${legacy_dir}" = "${CONFIG_DIR}" ]; then
      continue
    fi

    if settings_initialized "${legacy_dir}/settings.json"; then
      echo "[entrypoint] Migrating existing configuration from ${legacy_dir} to ${CONFIG_DIR}"

      for file in authentication.json pms.json settings.json xepg.json urls.json; do
        if [ "${file}" = "settings.json" ] || [ "${file}" = "xepg.json" ] || [ "${file}" = "urls.json" ]; then
          cp -f "${legacy_dir}/${file}" "${CONFIG_DIR}/${file}" 2>/dev/null || true
        else
          copy_if_missing "${legacy_dir}/${file}" "${CONFIG_DIR}/${file}"
        fi
      done

      for dir_name in data cache backup tmp; do
        copy_if_missing "${legacy_dir}/${dir_name}" "${CONFIG_DIR}/${dir_name}"
      done

      break
    fi
  done
fi

if ! touch "${CONFIG_DIR}/.xteve-write-test" 2>/dev/null; then
  echo "[entrypoint] ERROR: Config directory is not writable: ${CONFIG_DIR}" >&2
  echo "[entrypoint] Running as UID:GID $(id -u):$(id -g)" >&2
  ls -ld "${CONFIG_DIR}" >&2 || true
  echo "[entrypoint] Hint: ensure host path ownership/permissions allow this UID:GID to write, or set matching container UID/GID at build time." >&2
  exit 1
fi
rm -f "${CONFIG_DIR}/.xteve-write-test"

echo "[entrypoint] Using config directory: ${CONFIG_DIR}"
echo "[entrypoint] Running as UID:GID $(id -u):$(id -g)"
if [ -f "${CONFIG_DIR}/settings.json" ]; then
  echo "[entrypoint] settings.json details: $(ls -l "${CONFIG_DIR}/settings.json" | awk '{print $1, $3, $4, $5, $9}')"
fi

exec /usr/local/bin/xteve -config "${CONFIG_DIR}" -port "${PORT}" "$@"