#!/bin/bash
# Licensed under the GPL v3 
# Version 0.2 Build 200906221945 
# 	Added options and error checking
# Version 0.1 Build 200906031245 - Original Ken Fallon (c) 

DEFAULTFORMAT=ogg

usage()
{
SCRIPT=`basename $0`
cat << EOF
Usage: ${SCRIPT} [-h] [-t format] [-f filename] [-u] url
Description: This script will convert a webpage into a audio file.

OPTIONS:
   -h      Show this message
   -t      Type of audio file to use (wav, mp3, ogg, etc)
   -f      Filename to save as
   -y      Overwrite file
   -u      URL of the webpage (Required)

EXAMPLE:
   ${SCRIPT} http://en.wikipedia.org/wiki/Thin_lizzy

   ${SCRIPT} -t ogg -f lizzy.ogg -y -u http://en.wikipedia.org/wiki/Thin_lizzy

EOF
}

# Check if the required tools are installed
which basename sed wget html2text espeak ffmpeg > /dev/null  || (echo "Missing required software." && exit 2)

URL=
TYPE=
FILENAME=
OVERWRITE=

while getopts "hu:t::f::y" OPTION
do
    case $OPTION in
	h)
	    usage
	    exit 1
	    ;;
	u)
	    URL=$OPTARG
	    ;;
	t)
	    TYPE=$OPTARG
	    ;;
	f)
	    FILENAME=$OPTARG
	    ;;
	y)
	    OVERWRITE="-y"
	    ;;
    esac
done

echo "$*" | grep "://" > /dev/null 2>&1
if [ "$?" -ne 0 ] ||  [ ! -n "$1" ] ;then
    usage
    exit
fi  

if [ -z $URL ] ;then
    URL=$*
fi

if [ -z $TYPE ] ;then 
    TYPE=$DEFAULTFORMAT
fi

if [ -z $FILENAME ] ;then
    FILENAME=`echo $URL|sed 's[^.*://[[g'|sed -e 's/[^[:alnum:]]/-/g'`.${TYPE}
fi

wget -q ${URL} -O - | \
html2text -nobs -ascii -o -| \
espeak --stdout | \
ffmpeg -v 2 ${OVERWRITE} -i - "${FILENAME}"