#!/bin/sh

set -e

script_dir=$(cd "$(dirname "$0")" && pwd)

die() {
   echo "$@" >&2
   exit 1
}

cleanup() {
   if [ -d "${TMP_DIR}" ]; then
      rm -rf "${TMP_DIR}"
   fi
}

trap cleanup EXIT
TMP_DIR=$(mktemp -d)
tarball="$1"

do_release() {
   (
      branch="${1}"
      chip_id="${2}"

      if [ "${chip_id}" != "2711" ] && [ "${chip_id}" != "2712" ]; then
         die "Invalid chip_id \"${branch}\" chip_id must be \"2711\" or \"2712\""
      fi
      cd "${TMP_DIR}/${chip_id}"

      fw_out="${script_dir}/../firmware-${chip_id}/${branch}"

      pwd
      TS="$(strings recovery.bin | grep BUILD_TIMESTAMP | sed 's/.*=//g')"
      DATE="$(date -u -d@${TS} +%Y-%m-%d)"
      echo "recovery.bin ${TS} ${DATE}"
      cp -fv recovery.bin "${fw_out}"

      TS="$(strings pieeprom.bin | grep BUILD_TIMESTAMP | sed 's/.*=//g')"
      DATE="$(date -u -d@${TS} +%Y-%m-%d)"
      echo "pieeprom.bin ${TS} ${DATE}"
      cp -fv pieeprom.bin "${fw_out}/pieeprom-${DATE}.bin"
   )
}

usage()
{
cat <<EOF
Usage:
release-fw: release.tar default|latest 2711 2712
EOF
}

[ -f "$tarball" ] || die "Release tarball ${1} not found"
cd "${TMP_DIR}"
tar -vxf "${tarball}"

branch="${2}"
if [ "${branch}" != "default" ] && [ "${branch}" != "latest" ]; then
   die "Invalid branch \"${branch}\" branch must be \"default\" or \"latest\""
fi

if [ -n "${3}" ]; then
   do_release "${branch}" "${3}"
fi

if [ -n "${4}" ]; then
   do_release "${branch}" "${4}"
fi