# ------------------------------------------------------------------------------
# Configure locale
# 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:
#  * LOCALESET: List of locale that will be supported by system
#  * SYSLOCALE: Default system wide locale
#
# Both case will be formated in that way (with exemple for French:
#                           fr_FR.UTF-8
#                           ^   ^   ^
#                           |   |   |
#     ISO-631-1 language code   |   |
#  ISO 3166-2 country subdivision   |
#                                   Character table (ISO or UTF)
# ------------------------------------------------------------------------------

export VER_conf_locale="0.1.2"

conf_locale()
{
    local gen_fname=/etc/locale.gen
    backupdist $gen_fname

    # Removing locales not in the list
    prnt I "Désactivation des locales initiales..."
    grep -v '^#' $gen_fname | grep -v -e '^[[:space:]]*$' |
        while read -r line; do
            sed -i "s/$line/# $line/" $gen_fname
        done

    # Adding locales not yet enabled
    for loc in $LOCALESET; do
        prnt I "Activation de la locale ${loc}..."
        sed -i "/^# $loc /s/^# //" $gen_fname
    done
    unset loc
    unset gen_fname

    prnt I "Régénération du cache de locale..."
    locale-gen

    prnt I "Définition de la langue du systême..."
    [[ ! $SYSLOCALE ]] &&
        export SYSLOCALE=C

    local sys_fname=/etc/default/locale
    backupdist $sys_fname
    echo "# Generated by init on $(stdtime)" > $sys_fname
    echo "LANG=$SYSLOCALE" >> $sys_fname
    for cfg in ADDRESS IDENTIFICATION MEASUREMENT MONETARY NAME NUMERIC PAPER \
		       TELEPHONE TIME; do
        echo "LC_$cfg=$SYSLOCALE" >> $sys_fname
    done
}

precheck_conf_locale()
{
    if [[ -z $LOCALESET ]]; then
        prnt W "Aucune locale définie !"
    else
        prnt m "Les locales disponibles seront : $LOCALESET"
    fi

    if [[ -z $SYSLOCALE ]]; then
        prnt W "Pas de locale systême définie, C sera utilié."
        export SYSLOCALE="C"
    fi
    prnt m "La locale par défaut sera : $SYSLOCALE"
}

export -f conf_locale
export -f precheck_conf_locale

# EOF