#!/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|-v         - Enable verbose output"
}

while test $# -gt 0
do
  case "$1" in
    -h|-?|--help)
      print_help
      exit 0
      ;;
    --init-packages)
      INIT_PACKAGES=1
      ;;
    --verbose|-v)
      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="$(pwd)/packages"

initiate_package() {
  PKG=$1
  status_start "Initializing subpackage: $PKG"
  ( set -e
    git submodule update --init packages/$PKG  >>$PKGDIR/$PKG.buildlog 2>&1
    cd $PKGDIR/$PKG
    git checkout current
  )
  if [ $? -ne 0 ]; then
    status_fail "Failed to initiate package $PKG, look in $PKG.buildlog to examine the fault\n"
    return 1
  fi
  status_ok
  return 0
}

build_package() {
  PKG=$1
  status_start "Building package: $PKG"
  if [ ! -d "packages/$PKG/debian" ]; then
    status_skip "No source for: $PKG"
    return 1
  fi
  ( set -e
    cd $PKGDIR/$PKG > /dev/null
    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 ""
for PKG in mdns-repeater \
           pmacct \
           udp-broadcast-relay \
           vyatta-bash \
           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-vrrp \
           vyatta-wanloadbalance \
           vyatta-webgui \
           vyatta-webproxy \
           vyatta-wireless \
           vyatta-wirelessmodem \
           vyatta-zone \
           vyos-keepalived \
           vyos-nhrp \
           vyos-pppoe-server \
           vyos-strongswan \
           vyos-world \
           ; do
  if [ $INIT_PACKAGES ]; then
    initiate_package "$PKG"
  fi
  build_package "$PKG"
done


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

  ( set -e
    cd packages/vyos-kernel > /dev/null
    bash -c '../../scripts/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=$(grep "^VERSION" Makefile | grep -Eo '[0-9]{1,4}')
  PATCHLEVEL=$(grep "^PATCHLEVEL" Makefile | grep -Eo '[0-9]{1,4}')
  SUBLEVEL=$(grep "^SUBLEVEL" Makefile | grep -Eo '[0-9]{1,4}')
  ARCH=$(dpkg --print-architecture)
  echo "$VERSION.$PATCHLEVEL.$SUBLEVEL" > $ROOTDIR/data/kernel_version
  status_ok
}
build_kernel


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

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

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

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

  VERSION=$(grep "^VERSION" packages/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  PATCHLEVEL=$(grep "^PATCHLEVEL" packages/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  SUBLEVEL=$(grep "^SUBLEVEL" packages/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  ARCH=$(dpkg --print-architecture)
  # Collect kernel information
  ( set -e
    pushd packages/vyos-wireguard > /dev/null
    echo "src/wireguard.ko /lib/modules/$VERSION.$PATCHLEVEL.$SUBLEVEL-$ARCH-vyos/extra" > debian/wireguard-modules.install
    bash -c 'KERNELDIR=/vyos/packages/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)


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

  if [ -f "packages/vyos-kernel/Makefile" ]; then
    error_msg "Something wrong with the kernel module?"
    return 1
  fi

  if ! grep -q "KBUILD_OUTPUT" packages/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=$(grep "^VERSION" packages/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  PATCHLEVEL=$(grep "^PATCHLEVEL" packages/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  SUBLEVEL=$(grep "^SUBLEVEL" packages/vyos-kernel/Makefile | grep -Eo '[0-9]{1,4}')
  ARCH=$(dpkg --print-architecture)

  ( set -e
    pushd packages/vyos-accel-ppp > /dev/null
    echo "lib/modules/$VERSION.$PATCHLEVEL.$SUBLEVEL-$ARCH-vyos/extra/*.ko" > 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