#!/usr/bin/env bash
#
# Copyright (C) 2022 Ing <https://github.com/wjz304>
#
# This is free software, licensed under the MIT License.
# See /LICENSE for more information.
#

# Convert po2mo
# $1 path
function convertpo2mo() {
  echo "Convert po2mo begin"
  local DEST_PATH="${1:-lang}"
  if [ $(find ${DEST_PATH}/ -name "*.po" | wc -l) -gt 0 ]; then
    for P in $(ls ${DEST_PATH}/*.po); do
      # Use msgfmt command to compile the .po file into a binary .mo file
      echo "msgfmt ${P} to ${P/.po/.mo}"
      msgfmt ${P} -o ${P/.po/.mo}
    done
  fi
  echo "Convert po2mo end"
}

# Get extractor
# $1 path
function getExtractor() {
  echo "Getting syno extractor begin"
  local DEST_PATH="${1:-extractor}"
  local CACHE_DIR="/tmp/pat"
  rm -rf "${CACHE_DIR}"
  mkdir -p "${CACHE_DIR}"
  # Download pat file
  # global.synologydownload.com, global.download.synology.com, cndl.synology.cn
  local PAT_URL="https://global.synologydownload.com/download/DSM/release/7.0.1/42218/DSM_DS3622xs%2B_42218.pat"
  local PAT_FILE="DSM_DS3622xs+_42218.pat"
  local STATUS=$(curl -# -w "%{http_code}" -L "${PAT_URL}" -o "${CACHE_DIR}/${PAT_FILE}")
  if [ $? -ne 0 -o ${STATUS} -ne 200 ]; then
    echo "[E] DSM_DS3622xs%2B_42218.pat download error!"
    rm -rf ${CACHE_DIR}
    exit 1
  fi

  mkdir -p "${CACHE_DIR}/ramdisk"
  tar -C "${CACHE_DIR}/ramdisk/" -xf "${CACHE_DIR}/${PAT_FILE}" rd.gz 2>&1
  if [ $? -ne 0 ]; then
    echo "[E] extractor rd.gz error!"
    rm -rf ${CACHE_DIR}
    exit 1
  fi
  (
    cd "${CACHE_DIR}/ramdisk"
    xz -dc <rd.gz | cpio -idm
  ) >/dev/null 2>&1 || true

  rm -rf "${DEST_PATH}"
  mkdir -p "${DEST_PATH}"

  # Copy only necessary files
  for f in libcurl.so.4 libmbedcrypto.so.5 libmbedtls.so.13 libmbedx509.so.1 libmsgpackc.so.2 libsodium.so libsynocodesign-ng-virtual-junior-wins.so.7; do
    cp "${CACHE_DIR}/ramdisk/usr/lib/${f}" "${DEST_PATH}"
  done
  cp "${CACHE_DIR}/ramdisk/usr/syno/bin/scemd" "${DEST_PATH}/syno_extract_system_patch"

  # Clean up
  rm -rf ${CACHE_DIR}
  echo "Getting syno extractor end"
}

# Get latest LKMs
# $1 path
# $2 (true|false[d]) include prerelease
function getLKMs() {
  echo "Getting LKMs begin"
  local DEST_PATH="${1:-lkms}"
  local CACHE_FILE="/tmp/rp-lkms.zip"
  rm -f "${CACHE_FILE}"
  if [ "${2}" = "true" ]; then
    TAG=$(curl -s "https://api.github.com/repos/wjz304/redpill-lkm/releases" | jq -r ".[0].tag_name")
  else
    TAG=$(curl -s "https://api.github.com/repos/wjz304/redpill-lkm/releases/latest" | jq -r ".tag_name")
  fi
  STATUS=$(curl -w "%{http_code}" -L "https://github.com/wjz304/redpill-lkm/releases/download/${TAG}/rp-lkms.zip" -o "${CACHE_FILE}")
  echo "TAG=${TAG}; Status=${STATUS}"
  [ ${STATUS} -ne 200 ] && exit 1
  # Unzip LKMs
  rm -rf "${DEST_PATH}"
  mkdir -p "${DEST_PATH}"
  unzip "${CACHE_FILE}" -d "${DEST_PATH}"
  rm -f "${CACHE_FILE}"
  echo "Getting LKMs end"
}

# Get latest addons and install its
# $1 path
# $2 (true|false[d]) include prerelease
function getAddons() {
  echo "Getting Addons begin"
  local DEST_PATH="${1:-addons}"
  local CACHE_DIR="/tmp/addons"
  local CACHE_FILE="/tmp/addons.zip"
  if [ "${2}" = "true" ]; then
    TAG=$(curl -s "https://api.github.com/repos/wjz304/arpl-addons/releases" | jq -r ".[0].tag_name")
  else
    TAG=$(curl -s "https://api.github.com/repos/wjz304/arpl-addons/releases/latest" | jq -r ".tag_name")
  fi
  STATUS=$(curl -w "%{http_code}" -L "https://github.com/wjz304/arpl-addons/releases/download/${TAG}/addons.zip" -o "${CACHE_FILE}")
  echo "TAG=${TAG}; Status=${STATUS}"
  [ ${STATUS} -ne 200 ] && exit 1
  rm -rf "${DEST_PATH}"
  mkdir -p "${DEST_PATH}"
  # Install Addons
  rm -rf "${CACHE_DIR}"
  mkdir -p "${CACHE_DIR}"
  unzip "${CACHE_FILE}" -d "${CACHE_DIR}"
  echo "Installing addons to ${DEST_PATH}"
  [ -f /tmp/addons/VERSION ] && cp -f /tmp/addons/VERSION ${DEST_PATH}/
  for PKG in $(ls ${CACHE_DIR}/*.addon); do
    ADDON=$(basename "${PKG}" .addon)
    mkdir -p "${DEST_PATH}/${ADDON}"
    echo "Extracting ${PKG} to ${DEST_PATH}/${ADDON}"
    tar -xaf "${PKG}" -C "${DEST_PATH}/${ADDON}"
  done
  echo "Getting Addons end"
}

# Get latest modules
# $1 path
# $2 (true|false[d]) include prerelease
function getModules() {
  echo "Getting Modules begin"
  local DEST_PATH="${1:-addons}"
  local CACHE_FILE="/tmp/modules.zip"
  rm -f "${CACHE_FILE}"
  if [ "${2}" = "true" ]; then
    TAG=$(curl -s "https://api.github.com/repos/wjz304/arpl-modules/releases" | jq -r ".[0].tag_name")
  else
    TAG=$(curl -s "https://api.github.com/repos/wjz304/arpl-modules/releases/latest" | jq -r ".tag_name")
  fi
  STATUS=$(curl -w "%{http_code}" -L "https://github.com/wjz304/arpl-modules/releases/download/${TAG}/modules.zip" -o "${CACHE_FILE}")
  echo "TAG=${TAG}; Status=${STATUS}"
  [ ${STATUS} -ne 200 ] && exit 1
  # Unzip Modules
  rm -rf "${DEST_PATH}"
  mkdir -p "${DEST_PATH}"
  unzip "${CACHE_FILE}" -d "${DEST_PATH}"
  rm -f "${CACHE_FILE}"
  echo "Getting Modules end"
}