# ------------------------------------------------------------------------------
# Distribution upgrade module, should be ran prior any other module (also
# configure APT)
# 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:
#   * PROXYAPT: Proxy to use with APT (eg. APT Cacher)
#   * PROXYAPTPORT: Working port for APT proxy
# ------------------------------------------------------------------------------

export VER_upgrade_dist="0.0.9"

# The following var must stay empty
export DEP_upgrade_dist=""

upgrade_dist()
{
    local proxyfile=/etc/apt/apt.conf.d/00proxy
    
    # We backup entire apt dir as future version will normalise source.list files
    backupdist /etc/apt

    prnt I "Configuration du proxy pour APT..."
    if [[ $PROXYAPT ]]; then
        if [[ ! -d $(dirname $proxyfile) ]]; then
            mkdir -pv $(dirname $proxyfile) || (
                prnt E "Impossiblle de créer le répertoire d'accueil pour la configuration d'APT."
                die 60
            )
        fi
        echo "# Generated automatically on $(stdtime) by $0" > $proxyfile
        echo "Acquire::http::Proxy \"http://${PROXYAPT}:${PROXYAPTPORT}\";" >> $proxyfile
    else
        prnt I "Pas de proxy configuré, ne fait rien."
    fi
    
    # Remplacement du source.list du distributeur par le notre
    installfile sources.list /etc/apt/sources.list
    
    prnt I "Mise à jour de la liste des paquets..."
    pkgupdt
    
    prnt I "Application des mises à jour de paquets..."
    pkgupgd
    
    prnt I "Suppression des paquets résiduels..."
    pkgautorem
}

precheck_upgrade_dist()
{
    prnt I "Vérification du réseau..."
    
    if [[ $(noerror wget -q --tries=10 --timeout=20 --spider http://www.cnrs.fr) != 0 ]]; then
        prnt E "Réseau non fonctionnel ! Abandon."
        die 160
    fi
    if [[ -n $PROXYAPT && -z $PROXYAPTPORT ]]; then
        prnt E "Un serveur proxy a été spécifié mais pas son port d'usage."
        die 160
    fi
}


export -f upgrade_dist
export -f precheck_upgrade_dist