#!/bin/bash


_helpexit() {
  printf "Usage: %s [-u] archive.file

  arhchive is iso/tar/zip/rar whatever archivemount can handle
  -u will unmount all FUSE.archivemount paths if no path given!

" "$( basename $0 )"
  echo Current mounts:
  cat /proc/mounts | grep fuse.archivemount | awk '{ print $1 "\t" $2 }'
  exit 1
}

for (( i=1; i<=$#; i++ )); do
    [[ ${!i} = "-h" ]] && _helpexit
    [[ ${!i} = "--help" ]] && _helpexit
done
unmount=false
for (( i=1; i<=$#; i++ )); do
    [[ ${!i} = "-u" ]] && { unmount=true; continue; }
    if [[ -z "$archive" ]]; then
        archive="${!i}"
    fi
done

mkdir -p ~/mnt/am
valid_name=$( basename "$archive" | sed -e 's/\s/_/g' )
mountpath=~/mnt/am/"$valid_name"

if [[ "$unmount" = true ]]; then
    cd ~/mnt
    if [[ -n "$archive" ]]; then
        echo Unmounting "$mountpath"
        fusermount -u -z "$mountpath"
        rmdir --ignore-fail-on-non-empty "$mountpath" &>/dev/null
    else
        # no path, unmount all
        cat /proc/mounts | grep fuse.archivemount | awk '{ print $2 }' | while read dir; do
            echo Unmounting $dir
            fusermount -u -z "$dir"
            rmdir --ignore-fail-on-non-empty "$dir" &>/dev/null
        done
    fi
    exit
fi

if [[ -z "$archive" ]]; then
    echo "No archive given"
    _helpexit
fi

if [[ -d "$mountpath" ]]; then
  device1=$( stat -c "%d" "$mountpath" )
  device2=$( stat -c "%d" ~/mnt/am )
else
  device1=valid
  device2=valid
fi

if [[ $device1 = $device2 ]]; then
    echo "Mounting $archive in ~/mnt/am/$valid_name"
    mkdir -p "$mountpath"

    archivemount \
        -o readonly \
        -o intr \
        -o uid=`id -u` \
        -o gid=`id -g` \
        "$archive" "$mountpath"
    if [[ $? -gt 0 ]]; then
      rmdir "$mountpath"
    fi
else
    echo "~/mnt/am/$valid_name is already mounted"
fi