#!/bin/bash
#
# Helper script for install-assist package.
# arguments 1:package name, 2 and on: download url
#
# NOTE: To avoid scriptlet failure during rpm transaction,
#       This script should always return 0 even if there is an error.

TEXTDOMAIN=self-build-setup
TEXTDOMAINDIR=/usr/share/locale

_NAME=$1
_QUEDIR=/var/cache/self-build
_ARCHIVEDIR=/var/cache/apt/archives

. /etc/self-build.conf

# create temporary directory to save downloaded file(s)
if ! _TOPDIR=`mktemp -d $TEMP_DIR/$_NAME.XXXXXX`; then
    echo -n "     "
    echo $"*ERROR: can't crete temporary directory."
    exit 0
fi

# get target package
echo -n "     "
echo $"Downloading rpm files..."
shift 1
for u in $@; do
    # if you already downloaded rpm files, 
    # then copy these from archived directory
    _TGT=$_TOPDIR/$(basename $u)
    _ARCHIVEDTGT=$_ARCHIVEDIR/$(basename $u)
    if [ "$CACHE_DOWNLOADED_FILES" = "yes" ]; then
	[ -s $_ARCHIVEDTGT ] && cp -af $_ARCHIVEDTGT $_TGT
    fi
    [ -s $_TGT ] && continue

    if [ ! $DL_SHOW_PROGRESS = "yes" ]; then
        # run quiet, no GUI 
        wget -q -P $_TOPDIR $u
        RESULT=$?
    elif [ -z `pgrep -n synaptic` ]; then
        # run verbose, no GUI (because no synaptic running)
        wget -P $_TOPDIR $u
        RESULT=$?
    else
    	# run verbose with GUI (zenity)
        wget -P $_TOPDIR $u 2>&1 | \
             sed -u 's/.* \+\([0-9]\+%\).*$/\1/' 2>/dev/null | \
             zenity --auto-close --progress \
                     --title $"Download files" \
                     --text $"Downloading $(basename $u)..." &

        # workaround for killing remaining wget process when cancel button pressed.
        WGETPID=`pgrep -f "wget -P $_TOPDIR $u"`
        ZENITYPID=$!                        # last child pid = zenity pid
        RESULT=0                            # hold exit status of zenity 

        RUNNING=0
        while [ $RUNNING -eq 0 ]
        do
            sleep 1
            if [ -z `ps -p $ZENITYPID -o pid=` ]; then
                if [ `ps -p $WGETPID -o pid=` ]; then
                    # if zenity exited but wget still running,
                    # then we suppose that zenity is cancelled by user.
                    sleep 3
                    kill -KILL $WGETPID
                    RESULT=1
                fi
            RUNNING=1
            fi
        done
    fi
    [ $RESULT -ne 0 -a -e $_TGT ] && rm -f $_TGT    
done
for f in $(echo $@|xargs -r -n1 basename|sort -u); do
    if [ ! -s $_TOPDIR/$f ]; then
        echo -n "     "
        echo $"*ERROR: can't download rpm files."": $f"
        rm -rf $_TOPDIR
        exit 0
    fi
done

echo -n "     "
echo $"Rpm files downloaded successfully."

# move rpm to que directory and remove temporary diractory
mv -f $_TOPDIR/* $_QUEDIR
rm -rf $_TOPDIR

exit 0