#!/bin/bash
#
# lib/opae
# Functions to download, install, or remove OPAE packages

# Dependencies:
#

# ensure we don't re-source this in the same environment
[[ -z "$_OPAE_PKG_FNS" ]] || return 0
declare -r -g _OPAE_PKG_FNS=1

function setup_distro_vars {
    PKG_EXT=""
    if is_fedora; then
        PKG_EXT="rpm"
    elif is_ubuntu ; then
        # NOTE(Sundar): OPAE packages depend on libjson0, which is
        #   not available after Ubuntu 16.04. After OPAE packages are
        #   updated, this check can be removed.
        [[ $os_RELEASE == "16.04" ]] && PKG_EXT="deb"
    fi
}

function install_opae_pkg {
    local pkg=$1
    local url=$2
    local CURL="curl -sSfL --retry 2"
    local tmpfile="/tmp/$pkg.$PKG_EXT"
    local retval=0

    # NOTE(Sundar): After OPAE libraries become part of the distro
    # repos, we can skip the download with curl.
    if ! is_package_installed $pkg; then
       $CURL -o $tmpfile $url; retval=$?
       if [[ $? -eq 0 ]]; then
           install_package $tmpfile; retval=$?
           [[ $? -ne 0 ]] && echo "WARNING: Could not install $pkg"
       else
           echo "WARNING: Could not download $url"
       fi
       /bin/rm -f $tmpfile
    fi
    return $retval
}

function install_opae_packages {
    setup_distro_vars
    local libs_url="$OPAE_GITHUB/$OPAE_LIBS.$PKG_EXT"
    local devel_url="$OPAE_GITHUB/$OPAE_DEVEL.$PKG_EXT"

    [[ "$PKG_EXT" == "" ]]  && return 1
    install_opae_pkg "$OPAE_LIBS_PKG" $libs_url && \
        install_opae_pkg "$OPAE_DEVEL_PKG" $devel_url
    # return value is the exit code of last command
}

function uninstall_opae_packages {
    uninstall_package "$OPAE_DEVEL_PKG"
    uninstall_package "$OPAE_LIBS_PKG"
}