#!/bin/bash

# a simple fm tuner frontend script
# Pete Nesbitt, Dec 2006.

# REQUIRES:
# fmtools utility available at http://www.stanford.edu/~blp/fmtools/
#  -my version is 0.99.1 but it shouldn't matter

# EDIT THIS array to match you cable fm guilde.
# (could be expanded to self build from fmscan someday)
# Use a '+' to separate frequency from name, replace spaces with '_'
STATION_LIST[0]="93.7+JR_Country"
STATION_LIST[1]="94.5+The_Beat"
STATION_LIST[2]="95.3+Z95"
STATION_LIST[3]="96.1+Fairchild_Radio"
STATION_LIST[4]="96.9+CKKS"
STATION_LIST[5]="97.7+CBC_French"
STATION_LIST[6]="99.3+CFOX"
STATION_LIST[7]="99.7+CKKQ_Victoria"
STATION_LIST[8]="100.5+KISM_Bellingham"
STATION_LIST[9]="101.1+CFMI"
STATION_LIST[10]="102.7+CFRO"
STATION_LIST[11]="103.5+QMFM"
STATION_LIST[12]="105.7+CBC_English"

DEF_CHOICE="8"
# temp files
STN_TMP="/tmp/stations.tmp"
FREQ_TMP="/tmp/frequencies.tmp"

# 'fm' utility
FM="/usr/local/bin/fm"

# volume in percent
# intensity (0-65535)
VOL_PER="40"
FM_VOLUME="`echo 65635/100*${VOL_PER}|bc`"

############
##Functions:
# show stations
show_station_names() {
 count=1
 echo
 echo "Available FM Stations:"
 for STATION in `echo ${STATION_LIST[@]}`;
 do
  # stations by number
    printf "%10s   %-18s %-s\n" "${count})" "`echo ${STATION} |cut -d'+' -f2|sed -e s/_/" "/g`" "(`echo ${STATION} |cut -d'+' -f1`)"
  # stations by name
  let count=count+1
 done
 echo
}

# select station
select_station() {
 printf " Please enter a number (or 'q' to quit): [${DEF_CHOICE}]:  "
  read CHOICE
  if [ "${CHOICE}" = "" ]; then CHOICE="${DEF_CHOICE}";fi
  if [ "${CHOICE}" = "q" ] || [ "${CHOICE}" = "Q" ]; then echo "exited by user";exit 0;fi
  #adjust for start from 0
  let CHOICE=CHOICE-1
  SELECTED="`echo ${STATION_LIST[${CHOICE}]}|cut -d'+' -f1`"
}

# play what is picked
play_selected() {
$FM on &> /dev/null
# volume not supported by my card 
 # $FM +$FM_VOLUME &> /dev/null
$FM -q $1 &> /dev/null
}

#####
##### start of script ############
clear

## first clean up any old runs:
rm -f $FREQ_TMP $STN_TMP &> /dev/null

show_station_names

select_station

play_selected $SELECTED

echo
echo "Playing `echo ${STATION_LIST[${CHOICE}]} |awk -F+ '{print $2"\t"$1}'|sed -e s/_/" "/g`"
echo
echo "Enter 'fm off' to turn off radio"
echo

#eof