#!/bin/sh

# Common packaging routines for Octez
#

# A better way to do this would be to build the package from source
# but given the various hurdles of Rust and OPAM during the build
# we construct packages afterwards. Which is not best practice :-)
#
# A better strategy would be to extract the version number, build a
# master spec file, build Octez and then make the packages from the
# master spec file.
#
# Place files in the dpkg directory to declare a package. e.g.
#
# baker-control.in      - a template for the Debian control file
#
# Place files in the rpm directory to declare packages similarly:
#
# baker-spec.in         - a template for the RPM SPEC file
# cf. https://rpm-packaging-guide.github.io/#binary-rpms
#
# These files are shared with the Debian package build in pkg-common
#
# baker.conf            - an example configuration file (optional)
# baker-binaries.in        - the list of binaries to include
# baker.initd.in           - System V init script (optional)
#
# Where Protocol variations are needed use @PROTOCOL@ and @PROTOCOLS@
#
# You can set OCTEZ_PKGMAINTAINER and OCTEZ_PKGNAME in the environment
# to change from the defaults.
#


# Initialise from active protocol versions
#
proto_file="script-inputs/active_protocol_versions_without_number"

if [ ! -f $proto_file ]; then
        echo "Cannot find active protocol list"
        exit 2
fi
protocols=$(tr '\n' ' ' < $proto_file | sed -e 's/ $//g')

# Variables
#
# Where the zcash files are
zcashdir="_opam/share/zcash-params"
#
# Package maintainer
OCTEZ_PKGMAINTAINER=${OCTEZ_PKGMAINTAINER:-package@nomadic-labs.com}
#
# Package name used in dpkg or rpm name
OCTEZ_PKGNAME=${OCTEZ_PKGNAME:-octez}
#
# Real name used in scripts (usually octez)
OCTEZ_REALNAME=${OCTEZ_REALNAME:-octez}
#
# Revision
OCTEZ_PKGREV=${OCTEZ_PKGREV:-1}

export OCTEZ_PKGMAINTAINER
export OCTEZ_PKGNAME
export OCTEZ_REALNAME
export OCTEZ_PKGREV

# Expand protocols in configuration and init files
#
expand_PROTOCOL() {
    file="$1"
    protocols_formatted=""
    protocols_list=""

    for i in $protocols; do

  if [ "$protocols_list" = "" ]; then
    protocols_list="$i";
  else
    protocols_list="$protocols_list $i"
  fi

        if [ "$i" != "alpha" ]; then
    # Alpha is handled in an experimental package
    #shellcheck disable=SC1003
    protocols_formatted=$protocols_formatted'\'"1${i}"'\'"2\n"
  fi

    done

    sed -e "s/@PROTOCOLS@/$protocols_list/g" \
      -e "/@PROTOCOL@/ { s/^\(.*\)@PROTOCOL@\(.*\)$/$protocols_formatted/; s/\\n$//; }" \
      "$file"

}

# Issue Warnings
#

warnings() {
  # BETA WARNING
  echo "WARNING: This build script should be considered beta for now"

  # Generic warning about BLST_PORTABLE=yes
  #
  BLST_PORTABLE=${BLST_PORTABLE:-notused}
  if [ "$BLST_PORTABLE" != "yes" ]; then
          echo "WARNING: BLST_PORTABLE is not set to yes in your environment"
          echo "If the binaries were not made with BLST_PORTABLE=yes then they"
          echo "might not run on some platforms."
  fi
}

# Get Octez version from the build
#

getOctezVersion() {

  if ! _vers=$(dune exec octez-version 2>/dev/null); then
    echo "Cannot get version. Try eval \`opam env\`?" >&2
    exit 1
  fi
  _vers_fix=$(echo "$_vers" | sed -e 's/\~//' -e 's/\+//')
  echo "$_vers_fix"
}

# Build init.d scripts
#

initdScripts() {
  _initin=$1  # Init script
  _inittarget=$2  # The target (e.g. octez-node)
  _stagedir=$3  # The staging area
        _initd="${_stagedir}/etc/init.d"

  if [ -f "${_initin}" ]; then
                mkdir -p "${_initd}"
    expand_PROTOCOL "${_initin}" \
      > "${_initd}/${_inittarget}"
                chmod +x "${_initd}/${_inittarget}"
        fi

}

# Fix up the binary lists
#
fixBinaryList() {
  _binlist=$1
  _binaries=""
  if [ -f "${_binlist}.in" ]; then
            expand_PROTOCOL "${_binlist}.in" > "${_binlist}"
        fi

        if [ -f "${_binlist}" ]; then
                _binaries=$(cat "${_binlist}" 2>/dev/null)
        fi
  echo "$_binaries"
}

# Deal with Zcash parameters
#
zcashParams() {
  _pkgzcash=$1
  _zcashtgt=$2

  if [ -f "${_pkgzcash}" ]; then
    zcashstuff=$(cat "${_pkgzcash}" 2>/dev/null)
    echo "=> Zcash"
    mkdir -p "${_zcashtgt}"
    for shr in ${zcashstuff}; do
                        cp "${zcashdir}/${shr}" \
        "${_zcashtgt}"
                done
  fi
}