#!/bin/sh

. /usr/share/debconf/confmodule

set -e

dev=$1
id=$2
part=$dev/$id

cd $dev

[ -f $part/method -a -f $part/acting_filesystem ] || exit 0

method=$(cat $part/method)
filesystem=$(cat $part/acting_filesystem)

case "$filesystem" in
    ext2|fat16|fat32|ntfs)
	:
	;;
    *)
	exit 0
	;;
esac

choice_mountpoint () {
    case "$filesystem" in
	ext2|fat16|fat32|ntfs)
	    if [ -f $part/mountpoint ]; then
		mp=$(cat $part/mountpoint)
	    else
		db_metaget partman-basicfilesystems/text/no_mountpoint description
		mp="$RET"
	    fi
	    db_metaget partman-basicfilesystems/text/specify_mountpoint description
	    RET=$(stralign -25 "$RET")
	    printf "mountpoint\t%s%s\n" "$RET" "$mp"
	    ;;
    esac
}

choice_options () {
    if [ "$filesystem" = ntfs ]; then
	# no mount options support yet (requires translations)
	return
    fi
    db_metaget partman-basicfilesystems/text/options description
    RET=$(stralign -25 "$RET")
    printf "options\t%s%.45s\n" "$RET" "$(get_mountoptions $dev $id)"
}

choice_format_swap () {
    if 
        [ "$method" = swap -a -f $part/detected_filesystem ] \
        && [ "$(cat $part/detected_filesystem)" = linux-swap ]
    then
	db_metaget partman-basicfilesystems/text/format_swap description
	description=$(stralign -25 "$RET")
	if [ -f $part/format ]; then
	    db_metaget partman-basicfilesystems/text/yes description
	    printf "dont_format_swap\t%s%s\n" "$description" "${RET}"
	else
	    db_metaget partman-basicfilesystems/text/no description
	    printf "format_swap\t%s%s\n" "$description" "${RET}"
	fi
    fi
}

choice_label () {
    # allow to set label only if the partition is to be formatted
    [ -f $part/format ] || return 0
    [ ! -f $part/formatted \
      -o $part/formatted -ot $part/method \
      -o $part/formatted -ot $part/filesystem ] || return 0
    case "$filesystem" in
	ext2)
	    if [ -f $part/label ]; then
		label=$(cat $part/label)
	    else
		db_metaget partman-basicfilesystems/text/none description
		label=$RET
	    fi
	    db_metaget partman-basicfilesystems/text/specify_label description
	    RET=$(stralign -25 "$RET")
	    printf "label\t%s%s\n" "$RET" "$label"
	    ;;
	_no_fat16|_no_fat32) # we dont have tools to set label of FAT file systems
	    if [ -f $part/label ]; then
		label=$(cat $part/label)
	    else
		db_metaget partman-basicfilesystems/text/none description
		label=$RET
	    fi
	    db_metaget partman-basicfilesystems/text/specify_label description
	    RET=$(stralign -25 "$RET")
	    printf "label\t%s%s\n" "$RET" "$label"
	    ;;
    esac
}

choice_reserved () {
    local reserved
    [ "$filesystem" = ext2 ] || return 0
    # allow to set reserved space only if the partition is to be formatted
    [ -f $part/format ] || return 0
    [ ! -f $part/formatted \
      -o $part/formatted -ot $part/method \
      -o $part/formatted -ot $part/filesystem ] || return 0
    if [ -f $part/reserved_for_root ]; then
	reserved=$(cat $part/reserved_for_root)
    else
	reserved=5
    fi
    db_metaget partman-basicfilesystems/text/reserved_for_root description
    RET=$(stralign -25 "$RET")
    printf "reserved_for_root\t%s%s\n" "$RET" "$reserved%"
}

choice_usage () {
    local usage
    [ "$filesystem" = ext2 ] || return 0
    # allow to set usage only if the partition is to be formatted
    [ -f $part/format ] || return 0
    [ ! -f $part/formatted \
      -o $part/formatted -ot $part/method \
      -o $part/formatted -ot $part/filesystem ] || return 0
    if [ -f $part/usage ]; then
	usage=$(cat $part/usage)
    else
	db_metaget partman-basicfilesystems/text/typical_usage description
	usage=$RET
    fi
    db_metaget partman-basicfilesystems/text/usage description
    RET=$(stralign -25 "$RET")
    printf "usage\t%s%s\n" "$RET" "$usage"
}

choice_mountpoint

choice_options

choice_format_swap

choice_label

choice_reserved

choice_usage
