# ------------------------------------------------------------------------------
# Install or remove packages
# This file is part of the init.sh project
# Copyright (c) 2019-2021 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
# ------------------------------------------------------------------------------
# This file is distributed under 3-clause BSD license.
# The complete license agreement can be obtained at:
# https://opensource.org/licenses/BSD-3-Clause
# ------------------------------------------------------------------------------
# Variable:
#  * PKGS_RMLIST: packages to remove
#  * PKGS_BLACKLIST: package to mark as forbidden (will be removed if not)
#  * PKGSEL: List of package to install
# ------------------------------------------------------------------------------

export VER_install_pkg="0.1.5"
export DEP_install_pkg="upgrade_dist"

install_pkg()
{
    # Remove unnecessary packages
    if [[ -n $PKGS_RMLIST  ]]; then
        prnt I "Removing some undesired packages..."
        pkgrm $PKGS_RMLIST
    fi

    # Blacklist some anoying packages (and remove them if needed)
    if [[ -n PKGS_BLACKLIST ]]; then
        for pkg in $PKGS_BLACKLIST; do
            prnt I "Placing $pkg into the blacklist..."
            local dest=/etc/apt/preferences.d/blacklist_$pkg
            install_file pkgman/blacklist.conf $dest &&
                sed -i -e "s/@pkg@/pkg/" $dest
            tag_file $dest

            # If blacklisted we suppose uninstall as well (if neeeded)
            pkgrm $pkg
        done
    fi

    # Install all the configured packages
    if [[ -n $PKGSEL ]]; then
        prnt I "Installing the package selection..."
        pkginst $PKGSEL
    fi

    # Cleaning
    prnt I "Removing not needed anymore package..."
    pkgautorm
}

precheck_install_pkg()
{
    if [[ -z PKGS_RMLIST ]]; then
        prnt I "No package to remove."
    else
        prnt I "$(echo $PKGS_RMLIST | wc -w) package to remove."
    fi

    if [[ -z PKGS_BLACKLIST ]]; then
        prnt W "The packages $pkg will be placed into the blacklist !"
        file_must_exists pkgman/blacklist.conf
    fi

    if [[ -z $PKGSEL ]]; then
        prnt W "No additionnal package to install !"
    else
        prnt I "$(echo $PKGSEL | wc -w) additionnal package have to be installed."
    fi
}

export -f install_pkg
export -f precheck_install_pkg

# EOF