#!/bin/sh

# Wrapper script for btdownloadcurses, which has dumb commandline processing
#
# Copyright 2003, Steven Mueller <diffusor@ugcs.caltech.edu>
# This script is released into the public domain.
#
# Last modified: September 14, 2003 18:45 Sunday -0700


# Configuration options -----------------------------------------------

# The path to your bittorrent client of choice (gui, curses, or headless)
BTPROG="$HOME/src/python/bt/btdownloadcurses"

# Default upload limit.  Set to "" or comment out to disable.
UPRATE="3"

# End configurable options --------------------------------------------


set -e
showhelp () {
cat << ENDUSAGE
Usage: $0 [-r uploadratelimit] [-o saveasfile] [ -f responsefile | -u url | file | url ] ...

Launch $BTPROG in a more concise way.  If one of -f or -u are not specified,
then the filename or url of the torrent is taken from the commandline.  Any
remaining arguments are passed on to the bittorrent client as-is.

Options:
 -f file  local torrent file (--responsefile)
 -u url   remote torrent file url (--url)
 -o file  use this file or directory for output (--saveas)
 -r #     set maximum upload rate in kiB/s
 -h       show this usage information
ENDUSAGE
}

errexit () {
    echo "$0: Error: $1"
    echo
    showhelp
    exit 2
}

# Parse options, allowing for wacky spaces in bad places and naughty characters
eval set -- "`getopt -s bash -- f:u:o:r:h "$@"`"
if test $? != 0 ; then
    showhelp
    exit 2
fi

# Process options
for i; do
    case "$i" in
	-f) [ -n "$TORRENT" ] && errexit "Only one of -f or -u can be specified."
	    TTYPE="--responsefile"
	    TORRENT="$2"; shift 2 ;;
	-u) [ -n "$TORRENT" ] && errexit "Only one of -f or -u can be specified."
	    TTYPE="--url"
	    TORRENT="$2"; shift 2 ;;
	-o) SAVEAS="$2"; shift 2 ;;
	-r) UPRATE="$2"; shift 2 ;;
	-h) showhelp; exit 0;;
	--) shift; break;;
    esac
done

# Process arguments
if [ -z "$TORRENT" ]; then
    [ $# -lt 1 ] && errexit "No torrent file or url specified."
    TORRENT="$1"; shift
    if [ -r "$TORRENT" -a ! -d "$TORRENT" ]; then
	echo "Processing $TORRENT as a responsefile."
	TTYPE="--responsefile"
    else
	echo "Processing $TORRENT as an url."
	TTYPE="--url"
    fi
fi

if [ -n "$SAVEAS" ]; then
    # handle spaces and funky characters properly
    set -- --saveas "$SAVEAS" "$@"
fi

if [ -n "$UPRATE" ]; then
    UPARG="--max_upload_rate $UPRATE"
fi

set -x
exec "$BTPROG" $UPARG "$TTYPE" "$TORRENT" "$@"