#!/bin/bash
#
# Copyright (c) 2002, Brian St. Pierre
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose, without fee, and without a written agreement
# is hereby granted, provided that the above copyright notice and this
# paragraph and the following two paragraphs appear in all copies.
#
# IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT,
# INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST
# PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
# EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
# BASIS, AND THE AUTHOR HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#
# $Log: quote,v $
# Revision 1.3  2002/03/14 13:46:25  bstpierre
# Yanked CRs
#
# Revision 1.2  2002/03/14 13:43:46  bstpierre
# Added Yahoo as a quote source.
#
#
#

function refresh()
{
    wget -q "$1" -O $2
    if [ $? != 0 ]
    then
        echo wget failed
    fi
}

function fetch_nasdaq()
{
    TICKER=$1
    CACHEFILE=$HOME/.quotecache/$TICKER.xml
    URL='http://quotes.nasdaq.com/quote.dll?page=xml&mode=stock&symbol='$TICKER

    TIMESTAMP=$HOME/.quotecache/TIMESTAMP.nasd
    HH=`date +"%H"`
    MM=`date +"%M"`
    MM=`expr $MM - 5`
    if [ $MM -lt 0 ]
    then
        MM=`expr $MM + 60`
    fi

    touch --date="$HH:$MM" $TIMESTAMP
    if ! [ -f $CACHEFILE ]
    then
        refresh $URL $CACHEFILE
    fi

    if [ $CACHEFILE -ot $TIMESTAMP ]
    then
        refresh $URL $CACHEFILE
    fi

    case $2 in
        last)
            field='last-sale-price'
            ;;
        change)
            field='net-change-price'
            ;;
        vol)
            field='share-volume-qty'
            ;;
        *)
            exit 1
            ;;
    esac

    sed "
    /^<equity-quote/!d
    s#<$field>#^#
    s#</$field>#^#
    " < $CACHEFILE |
    cut -d^ -f2,4
}

function fetch_yahoo()
{
    TICKER=$1
    CACHEFILE=$HOME/.quotecache/$TICKER.csv
    URL='http://finance.yahoo.com/d/quotes.csv?s='$TICKER'&f=sl1d1t1c1ohgv&e=.csv'

    TIMESTAMP=$HOME/.quotecache/TIMESTAMP.yahoo
    HH=`date +"%H"`
    MM=`date +"%M"`
    MM=`expr $MM - 5`
    if [ $MM -lt 0 ]
    then
        MM=`expr $MM + 60`
    fi

    touch --date="$HH:$MM" $TIMESTAMP
    if ! [ -f $CACHEFILE ]
    then
        refresh $URL $CACHEFILE
    fi

    if [ $CACHEFILE -ot $TIMESTAMP ]
    then
        refresh $URL $CACHEFILE
    fi

    case $2 in
        last)
            field=2
            ;;
        change)
            exit 1
            ;;
        vol)
            exit 1
            ;;
        *)
            exit 1
            ;;
    esac

    cut -d, -f$field < $CACHEFILE
}

#fetch_nasdaq $*
fetch_yahoo $*