#!/bin/sh

# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2017-present Team LibreELEC (https://libreelec.tv)

if [ $# -ne 3 ] ; then
  echo "$0 usage: context addon-id addon-path"
  exit 1
fi

CONTEXT="$1"
ADDON_ID="$2"
ADDON_PATH="$3"

if [ ! -d /storage/.config/system.d ] ; then
  mkdir -p /storage/.config/system.d
fi

SERVICE_FILE="${ADDON_PATH}/system.d/${ADDON_ID}.service"

if [ -f "${SERVICE_FILE}" ] ; then
  case "${CONTEXT}" in
    enable)
      systemctl enable "${SERVICE_FILE}"
      chmod +x "${ADDON_PATH}/bin"/*
      systemctl start "${ADDON_ID}.service"
      ;;
    disable | pre-uninstall)
      systemctl stop "${ADDON_ID}.service"
      systemctl disable "${ADDON_ID}.service"
      ;;
    post-install)
      # post-install is triggered on update as well,
      # make sure to stop and re-install service
      systemctl stop "${ADDON_ID}.service"
      systemctl disable "${ADDON_ID}.service"
      systemctl enable "${SERVICE_FILE}"
      chmod +x "${ADDON_PATH}/bin"/*
      systemctl start "${ADDON_ID}.service"
      ;;
    restart)
      systemctl restart "${ADDON_ID}.service"
      ;;
    reload)
      systemctl reload "${ADDON_ID}.service"
      ;;
    *)
      echo "$0: unknown service context $CONTEXT"
      exit 1
      ;;
  esac
fi

if [ ! -d /storage/.cache/kernel-overlays ] ; then
  mkdir -p /storage/.cache/kernel-overlays
fi

# kernel-overlay addons built into the image have their
# files installed in the default /usr/lib/kernel-overlays
# location, not inside the kodi addon dir

case "${ADDON_PATH}" in
  /usr/share/kodi/addons/*)
    OVERLAY_PATH="/usr/lib/kernel-overlays/${ADDON_ID}"
    ;;
  *)
    OVERLAY_PATH="${ADDON_PATH}/kernel-overlay"
    ;;
esac

create_overlay_conf() {
  rm -f "${OVERLAY_CONF}"
  echo "${OVERLAY_PATH}" > "${OVERLAY_CONF}"
}

if [ -d "${OVERLAY_PATH}" ] ; then
  OVERLAY_CONF="/storage/.cache/kernel-overlays/50-${ADDON_ID}.conf"

  case "${CONTEXT}" in
    enable | post-install )
      create_overlay_conf
      ;;
    disable | pre-uninstall )
      rm -f "${OVERLAY_CONF}"
      ;;
    update )
      if [ -e "${OVERLAY_CONF}" ] ; then
        create_overlay_conf
      fi
      ;;
    *)
      echo "$0: unknown overlay context $CONTEXT"
      exit 1
      ;;
  esac

fi