#!/bin/zsh
# License: Creative Commons Share Alive 3.0
# Copyright: 2012, Bernhard Tittelbach <xro@realraum.at>
# Thanks to malenki on #osm-de@oftc.net for constructive input and nagging me into making this thing useable in the first place

# Required software:
# - zsh (obviously)
# - 7z
# - mkgmap (preferred) [http://www.mkgmap.org.uk/snapshots/] OR wine
# - gmt linux version [ http://www.anpo.republika.pl/download.html ] OR wine
#

setopt extendedglob
setopt cshnullglob
SCRIPT_NAME=${0:t}
usage()
{
    print "\nUsage: $SCRIPT_NAME [options] <mtb*.exe|velo*.exe> <TYP-file or TYP-style>" > /dev/stderr
    print "     as TYP-style you can choose:" > /dev/stderr
    print "     clas: classic layout - optimized for Vista/Legend series" > /dev/stderr
    print "     thin: thinner tracks and pathes - optimized for Gpsmap60/76 series" > /dev/stderr
    print "     wide: high contrast layout, like classic but with white forest - optimized for Oregon/Colorado dull displays" > /dev/stderr
    print "     hike: like classic layout - but optimized for hiking (does not show mtb/bicycle informations)" > /dev/stderr
    print "     easy: similar to classic layout - but focussed on easy readability hence not showing mtb/bicycle information except routes" > /dev/stderr
    print "     velo: (comes with velomap files) Layout optimized for small GPS screen" > /dev/stderr
    print "     or give the path to your own .TYP style file" > /dev/stderr
    print "\nOptions:" > /dev/stderr
    print "     -m <path/to/mkgmap.jar>" > /dev/stderr
    print "     -o <path/to/outputdir>\n" > /dev/stderr
    exit 1
    # descriptions taken from openmtbmap.org  batch files
}

zparseopts -A ARGS_A -D -E -- "m:" "o:"
OMTB_EXE="$1"
TYPFILE="$2"
GMT_CMD==gmt
MKGMAP=( ${ARGS_A[-m]}(.N,@-.) /usr/share/mkgmap/mkgmap.jar(.N,@-.) /usr/local/share/mkgmap/mkgmap.jar(.N,@-.) ${^path}/mkgmap.jar(.N,@-.) )
MKGMAP="${MKGMAP[1]}"

if ! [[ -x $GMT_CMD ]] ; then
    if ! [[ -x =wine ]] ; then
        print "ERROR: You need to either install wine or the gmt linux binary !" > /dev/stderr
        exit 3    
    fi
    # use supplied gmt.exe with wine
    GMT_CMD="wine ./gmt.exe"
fi

if ! [[ -x =7z ]]; then
    print "\nERROR: 7z is not installed, but needed to extract openmtbmap downloads !"
    exit 3
fi

[[ -z $TYPFILE || ! -f $OMTB_EXE ]] && usage

if [[ ${OMTB_EXE:t} == mtb* ]]; then
    OMTBORVELO=openmtbmap
    OMTB_NAME="${OMTB_EXE:t:r:s/mtb/}"
elif [[ ${OMTB_EXE:t} == velo* ]]; then
    OMTBORVELO=openvelomap
    OMTB_NAME="${OMTB_EXE:t:r:s/velo/}"
else
    print "\nERROR: not a openmtbmap.org or openvelomap.org file ?"
    usage
fi
DESC="${OMTBORVELO}_${OMTB_NAME}"
if [[ -d ${ARGS_A[-o]} ]]; then
    DSTFILENAME="${ARGS_A[-o]:A}/${DESC}.img"
    TMPDIR=${ARGS_A[-o]:A}/OMTB_tmp
else
    DSTFILENAME="${OMTB_EXE:A:h}/${DESC}.img"
    TMPDIR=${OMTB_EXE:A:h}/OMTB_tmp
    [[ -n $ARGS_A[-o] ]] && {print "\nWarning: -o given but ${ARGS_A[-o]} is not a directory.\n         Using ${OMTB_EXE:A:h} instead..\n"}
fi

if [[ -e $DSTFILENAME ]]; then
    print "\nWarning: the script will create (overwrite) $DSTFILENAME"
    print "         but $DSTFILENAME already exists."
    read -q "?Continue and overwrite ? [y/N] " || exit 0
    print ""
fi

if [[ -e $TMPDIR ]] ; then
    print "\nWarning: the script want's to create directory $TMPDIR, but it already exists."
    if [[ -d $TMPDIR ]] ; then
        print "         If you press [y], $OMTB_EXE will be extracted"
        print "         to $TMPDIR regardless of it's contents."
        print "         That's fine if it was created during a previous abortet run of this script."
        print "         Otherwise you should say [n] and move $OMTB_EXE into a clean directory."
        read -q "?Continue ? [y/N] " || exit 0
        print ""
    else
        print "         Please use another output directory and try again."
        exit 1
    fi
else
    mkdir $TMPDIR || exit 1
fi

FIMG_a=(${TMPDIR}/6<000-999>0000.img(N))
if [[ -z $FIMG_a ]] ; then
    print "Extracting $OMTB_EXE ..."
    7z x -y -o$TMPDIR ${OMTB_EXE} &>/dev/null || exit 1
    FIMG_a=(${TMPDIR}/6<000-999>0000.img(N[1]))
    [[ -z $FIMG_a ]] && {print "\nERROR, could not find 6*.img file after extracting $OMTB_EXE" >/dev/stderr ; exit 1}
fi
if [[ -f $TYPFILE ]] ; then
    TYPFILE="${TYPFILE:A}"
else
    TYPFILE=( "${TMPDIR}/"(#i)${TYPFILE}*.typ(.N:A))
    TYPFILE="${TYPFILE[1]}"
fi

trap "cd '$PWD'" EXIT
cd $TMPDIR || exit 5

if [[ -z $TYPFILE ]] ; then
    print "\nERROR: TYP-file or -style not found" > /dev/stderr
    print "       please choose your own file or one of these styles: "  *.(#l)TYP(.N:r)  > /dev/stderr
    exit 2
fi

print "using display-TYP-file: $TYPFILE"
cp $TYPFILE 01002468.TYP || exit 4
FID=${${FIMG_a:t}[1][1,4]}
print using FID $FID

$GMT_CMD -wy $FID 01002468.TYP
if [[ -n $MKGMAP ]]; then
    print "using mkgmap, building address search index..."
    #java -Xmx1000M -jar mkgmap.jar --family-id=$FID --index --description="$DESC" --series-name="$DESC" --family-name="$DESC" --show-profiles=1  --product-id=1 --gmapsupp 6*.img 7*.img 01002468.TYP
    java -Xmx3000M -jar "$MKGMAP" --family-id=$FID --index --description="$DESC" --series-name="$DESC" --family-name="$DESC" --show-profiles=1  --product-id=1 --gmapsupp [67]*.img 01002468.TYP || exit 7
    mv (#i)gmapsupp.img "${DSTFILENAME}" || exit 7
else
    print "mkgmap not found, using gmt..."
    $GMT_CMD -j -o "${DSTFILENAME}" -f $FID -m "$DESC" 6*.img 7*.img 01002468.TYP || exit 7
fi
rm -R "$TMPDIR"
print "\nSuccessfully created ${DSTFILENAME}"