#!/bin/bash
#----------------------------------------------------
# Author:       Florian "Bluewind" Pritz <flo@xssn.at>
#
# Licensed under WTFPL v2
#   (see COPYING for full license text)
#
#----------------------------------------------------
# Dependencies: curl
# Optional: xclip
#----------------------------------------------------

VERSION="0.6.3.2"

DELETE=0
EXTENSION=""
GET=0
PASTEBIN="http://paste.xinu.at"
USERAGENT="fb-client/$VERSION"
CLIPBOARD=""

do_upload() {
  local EXTRA=""
  if [[ -n $EXTENSION ]]; then
    EXTRA="-F extension=$EXTENSION"
  fi
  TMPFILE=$(mktemp "$TMPDIR/data.XXXXXX")
  curl -# -n -L -A $USERAGENT $EXTRA -F "file=@$1" "$PASTEBIN/file/do_upload" > $TMPFILE
  sed '$d' $TMPFILE >&2
  URL=$(tail -1 $TMPFILE)
  echo $URL
  CLIPBOARD="$CLIPBOARD $URL"
}

read_stdin() {
  if tty -s; then
    echo "^C to exit, ^D to send"
  fi
  cat > "$1"
}

help() {
  cat <<EOF
fb-client version $VERSION
usage: [cat |] `basename "$0"` [switches] [file(s)|ID(s)]

  Upload/nopaste file(s)/stdin to paste.xinu.at and copy URL(s) to clipboard.
  ~/.netrc: machine paste.xinu.at password PASSWORD

  Switches:
    -e EXTENSION   extension for default highlighting (e.g. "diff")
    -d             delete the IDs
    -g             download the IDs and output on stdout (use with care!)
    -h             this help
EOF
  exit 0
}

while getopts ":e:gdh" OPTION; do
  case $OPTION in
    e) EXTENSION="$OPTARG";;
    g) GET=1;;
    d) DELETE=1;;
    h) help;;
    \?) echo "unknown option \"-$OPTARG\"" >&2; exit 1;;
    :) echo "Option \"-$OPTARG\" needs an argument" >&2; exit 1;;
  esac
done

shift $((OPTIND - 1))

TMPDIR="$(mktemp -d "/tmp/fb.XXXXXX")"
trap "rm -rf '${TMPDIR}'" EXIT TERM

if (($# == 0)); then
  read_stdin "$TMPDIR/stdin"
  do_upload "$TMPDIR/stdin"
else
  for i in "$@"; do
    if [[ $DELETE == 1 ]]; then
      curl -n -L -A $USERAGENT "$PASTEBIN/file/delete/$i"
    elif [[ $GET == 1 ]]; then
      curl -s -o - -A $USERAGENT "$PASTEBIN/$i"
    elif grep -qE "^(f|ht)tp(s)?://.+" <<< "$i"; then
      cd $TMPDIR
      curl -# -A $USERAGENT -O "$i"
      for f in *; do
        do_upload "$f" && rm -f "$f"
      done
    else
      do_upload $i
    fi
  done
fi

echo -n $CLIPBOARD | nohup &> /dev/null xclip || true