#!/bin/bash

if [ ! -d "packages" ]; then
  echo "This script needs to be executed inside the top root of vyos-build"
  exit 1
fi

print_help() {
  echo "Script for building all subpackages to vyos"
  echo "Execute this sctipt from the root of the vyos-build directory"
  echo ""
  echo "This script could be executed from a Debian Jessie installation with all dependencies"
  echo "or from the vyos-builder docker container."
  echo ""
  echo "Build the container:"
  echo "  docker build -t vyos-builder ."
  echo "Compile packages:"
  echo "  docker run --rm -it -v $(pwd):/vyos -w /vyos --sysctl net.ipv6.conf.lo.disable_ipv6=0 vyos-builder scripts/build-submodules"
  echo ""
  echo "Parameters:"
  echo "  --init-packages      - Initiate all subpackages before building"
  echo "  --verbose            - Enable verbose output"
}

while test $# -gt 0
do
  case "$1" in
    -h|-?|--help)
      print_help
      exit 0
      ;;
    --init-packages)
      INIT_PACKAGES=1
      ;;
    --verbose)
      VERBOSE=1
      ;;
    *)
      (>&2 echo "Error: Argument $1 is not valid")
      echo ""
      print_help
      exit 1
      ;;
  esac
  shift
done

status_start() {
    echo -ne "[    ] $1"
}
status_ok() {
    echo -ne "\r[\e[32m OK \e[39m]\n"
}

status_fail() {
    echo -ne "\r[\e[31mFAIL\e[39m]\n"
}

status_skip() {
    echo -ne "\r[SKIP] $1\n"
}

error_msg() {
    echo -ne "      $1\n"
}
ROOTDIR="$(pwd)"
PKGDIR="$ROOTDIR/packages"
SCRIPTDIR="$ROOTDIR/scripts"

build_package() {
  PKG=$1
  status_start "Building package: $PKG"
  if [ ! -d "$PKGDIR/$PKG/debian" ]; then
    status_skip "No source for: $PKG"
    return 1
  fi
  ( set -e; set -x
    cd $PKGDIR/$PKG
    dpkg-buildpackage -uc -us -tc -b
  ) >>$PKGDIR/$PKG.buildlog 2>&1
  if [ $? -ne 0 ]; then
    status_fail
    error_msg "Failed to build package $PKG, look in $PKG.buildlog to examine the fault\n"
    return 2
  fi
  status_ok
}

echo "Cleaning up buildfiles..."
rm -rf $PKGDIR/*.deb
rm -rf $PKGDIR/*.changes
rm -rf $PKGDIR/*.buildlog
echo "-----------------------------------------------------"
echo "Starting build process for all packages"
echo ""

initialize_packages() {
  status_start "Initializing packages"
  (
    set -x
    git submodule update --init --recursive
    git submodule update --remote
  ) >>$PKGDIR/init-packages.buildlog 2>&1
  if [ $? -ne 0 ]; then
      status_fail
      if [ $VERBOSE ]; then
          cat $PKGDIR/init-packages.buildlog
      fi
      error_msg "Failed to update all package, look in init-packages.buildlog to examine the fault\n"
      return 1
  fi
  status_ok
}
if [ $INIT_PACKAGES ]; then
  initialize_packages
fi

build_frr() {
  PKG=frr

  status_start "Building package: $PKG"
  if [ ! -f "$PKGDIR/$PKG/README.md" ]; then
    status_skip "No source for: $PKG"
    return 1
  fi

  ( set -e; set -x
    cd $PKGDIR/$PKG

    # Run bootstrap.sh and make a dist tarball
    # http://docs.frrouting.org/projects/dev-guide/en/latest/packaging-debian.html
    ./bootstrap.sh
    ./configure --with-pkg-extra-version=-vyos
    make dist

    # Create backports debian sources
    mv debianpkg debian
    make -f debian/rules backports

    # Create a new directory to build the package and populate with package source.
    mkdir frrpkg
    cd frrpkg
    tar xf ../frr_*.orig.tar.gz
    cd frr*
    source /etc/os-release
    ls -al ../../frr_*${ID}${VERSION_ID}*
    tar xf ../../frr_*${ID}${VERSION_ID}*.debian.tar.xz

    # As libyang is not (yet) build and installed as native Debian package FRR
    # build system reports the following error:
    #
    #   "dpkg-shlibdeps: error: no dependency information found for
    #       /usr/lib/x86_64-linux-gnu/libyang.so.0.16"
    #
    # It is "overruled" by
    sed '/dh_systemd_enable frr.service/ a \\noverride_dh_shlibdeps:\n\tdh_shlibdeps --dpkg-shlibdeps-params=--ignore-missing-info\n' -i debian/rules


    # Build Debian Package
    debuild --no-lintian --set-envvar=WANT_SNMP=1 --set-envvar=WANT_RPKI=1 \
        --set-envvar=WANT_CUMULUS_MODE=0 -b -uc -us

    mv ../frr_*.deb $PKGDIR
  ) >>$PKGDIR/$PKG.buildlog 2>&1
  if [ $? -ne 0 ]; then
    status_fail
    error_msg "Failed to build package $PKG, look in $PKG.buildlog to examine the fault\n"
    return 2
  fi
  status_ok
}
build_frr

for PKG in mdns-repeater \
           pmacct \
           udp-broadcast-relay \
           conntrack-tools \
           eventwatchd \
           ddclient \
           rtrlib \
           vyatta-bash \
           vyatta-biosdevname \
           vyatta-cfg \
           vyatta-cfg-firewall \
           vyatta-cfg-op-pppoe \
           vyatta-cfg-qos \
           vyatta-cfg-quagga \
           vyatta-cfg-system \
           vyatta-cfg-vpn \
           vyatta-cluster \
           vyatta-config-mgmt \
           vyatta-config-migrate \
           vyatta-conntrack \
           vyatta-conntrack-sync \
           vyatta-eventwatch \
           vyatta-iproute \
           vyatta-ipv6-rtradv \
           vyatta-lldp \
           vyatta-nat \
           vyatta-netflow \
           vyatta-op \
           vyatta-op-dhcp-server \
           vyatta-op-firewall \
           vyatta-op-qos \
           vyatta-op-quagga \
           vyatta-op-vpn \
           vyatta-openvpn \
           vyatta-ravpn \
           vyatta-wanloadbalance \
           vyatta-webgui \
           vyatta-webproxy \
           vyatta-wireless \
           vyatta-wirelessmodem \
           vyatta-zone \
           vyos-keepalived \
           vyos-nhrp \
           vyos-opennhrp \
           vyos-salt-minion \
           vyos-strongswan \
           vyos-world \
           ; do
  build_package "$PKG"
  ERRCODE=$?
  if [ "$ERRCODE" -ne "0" ]; then
      exit $ERRCODE
  fi
done

# KERNEL
build_kernel() {
  status_start "Building-package: vyos-kernel"
  if [ ! -f "$PKGDIR/vyos-kernel/Makefile" ]; then
    status_skip "No source for: vyos-kernel"
    return 0
  fi

  ( set -e; set -x
    cd $PKGDIR/vyos-kernel > /dev/null
    bash -c "$SCRIPTDIR/build-kernel"
  ) >>$PKGDIR/vyos-kernel.buildlog 2>&1
  if [ $? -ne 0 ]; then
    status_fail
    if [ $VERBOSE ]; then
        cat $PKGDIR/vyos-kernel.buildlog
    fi
    error_msg "Failed to build package vyos-kernel, look in vyos-kernel.buildlog to examine the fault\n"
    return 1
  fi

  VERSION=$(grep "^VERSION" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  PATCHLEVEL=$(grep "^PATCHLEVEL" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  SUBLEVEL=$(grep "^SUBLEVEL" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  ARCH=$(dpkg --print-architecture)
  echo "$VERSION.$PATCHLEVEL.$SUBLEVEL" > $ROOTDIR/data/kernel_version
  status_ok
}
build_kernel
ERRCODE=$?
if [ "$ERRCODE" -ne "0" ]; then
    exit $ERRCODE
fi


# WIREGUARD
build_wireguard() {
  status_start "Building package: vyos-wireguard"

  if [ ! -d "$PKGDIR/vyos-wireguard/debian" ]; then
    status_skip "No source for: vyos-wireguard"
    return 0
  fi

  if [ ! -f "$PKGDIR/vyos-kernel/Makefile" ]; then
    status_fail
    error_msg "No Makefile found in kernel package"
    return 1
  fi

  if  ! grep -q "KBUILD_OUTPUT" $PKGDIR/vyos-kernel/Makefile; then
    status_fail
    error_msg "Failed to build package vyos-wireguard, no kernel source found\n"
    return 1
  fi

  VERSION=$(grep "^VERSION" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  PATCHLEVEL=$(grep "^PATCHLEVEL" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  SUBLEVEL=$(grep "^SUBLEVEL" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  ARCH=$(dpkg --print-architecture)
  # Collect kernel information
  ( set -e; set -x
    cd $PKGDIR/vyos-wireguard
    echo "src/wireguard.ko /lib/modules/$VERSION.$PATCHLEVEL.$SUBLEVEL-$ARCH-vyos/extra" | tee debian/wireguard-modules.install
    KERNELDIR=$PKGDIR/vyos-kernel dpkg-buildpackage -uc -us -tc -b
  ) >>$PKGDIR/vyos-wireguard.buildlog 2>&1
  if [ $? -ne 0 ]; then
    status_fail
    if [ $VERBOSE ]; then
        cat $PKGDIR/vyos-wireguard.buildlog
    fi
    error_msg "Failed to build package vyos-wireguard, look in vyos-wireguard.buildlog to examine the fault\n"
    return 2
  fi
  status_ok
}
build_wireguard
ERRCODE=$?
if [ "$ERRCODE" -ne "0" ]; then
    exit $ERRCODE
fi

# ACCEL-PPP
build_accel-ppp() {
  status_start "Building package: vyos-accel-ppp"
  if [ ! -d "$PKGDIR/vyos-accel-ppp/debian" ]; then
    status_skip "No source for: vyos-accel-ppp"
    return 0
  fi

  if [ ! -f "$PKGDIR/vyos-kernel/Makefile" ]; then
    status_fail
    error_msg "No Makefile found in kernel package"
    return 1
  fi

  if ! grep -q "KBUILD_OUTPUT" $PKGDIR/vyos-kernel/Makefile; then
    status_fail
    error_msg "Failed to build package vyos-accel-ppp, no kernel source found\n"
  fi
  # Collect kernel information
  VERSION=$(grep "^VERSION" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  PATCHLEVEL=$(grep "^PATCHLEVEL" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  SUBLEVEL=$(grep "^SUBLEVEL" $PKGDIR/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  ARCH=$(dpkg --print-architecture)

  ( set -e; set -x
    cd $PKGDIR/vyos-accel-ppp
    echo "lib/modules/$VERSION.$PATCHLEVEL.$SUBLEVEL-$ARCH-vyos/extra/*.ko" | tee debian/vyos-accel-ppp-ipoe-kmod.install
    sed -i "s#[0-9].[0-9][0-9].[0-9]-amd64-vyos#$VERSION.$PATCHLEVEL.$SUBLEVEL-$ARCH-vyos#g" debian/rules
    KERNELDIR=$PKGDIR/vyos-kernel dpkg-buildpackage -uc -us -tc -b
  ) >>$PKGDIR/vyos-accel-ppp.buildlog 2>&1
  if [ $? -ne 0 ]; then
    status_fail
    if [ $VERBOSE ]; then
        cat $PKGDIR/vyos-accel-ppp.buildlog
    fi
    error_msg "Failed to build package vyos-accel-ppp, look in vyos-accel-ppp.buildlog to examine the fault\n"
    return 1
  fi
  status_ok
}
build_accel-ppp
ERRCODE=$?
if [ "$ERRCODE" -ne "0" ]; then
    exit $ERRCODE
fi