#!/bin/bash
 
#h=`date +%l`
#m=`date +%M`

#Next 3 lines are temp for testing the script
h=$1
m=$2
a=$3
c=0 # used to flag if AM/PM toggled due to hour increment

#$filep="/home/rick/projects/radioPlaylist" # because i don't feel like typing it 100 times

echo "time: $h:$m$a" > /home/rick/playlist.log

echo "downloading web page to file..." >> /home/rick/playlist.log
#-----Get the page and save it to a file
/usr/bin/curl http://www.mediabase.com/whatsong/whatsong.asp?var_s=075069068074045070077 > /home/rick/projects/radioPlaylist/savedPage.html

echo "downloaded!" >> /home/rick/playlist.log
echo "Searching for artist name..." >> /home/rick/playlist.log

#-----Get the Artist-------
artist=`/bin/cat /home/rick/projects/radioPlaylist/savedPage.html | /bin/grep ">$h:$m $a" -A 1 | /usr/bin/tail -n1 | /bin/sed 's/<td nowrap><span class=blackMain11px>//' | /bin/sed 's/<\/td>/\n/' | /usr/bin/head -n1`

if [[ $artist = "" ]]  #--If we didn't find an artist
then                   #--Then increment the minute
  m=`/usr/bin/expr $m + 1`
  if [[ $m = 60 ]]     #--Obviously we can't check 2:60 oclock
  then
    h=`/usr/bin/expr $h + 1`   #increment the hour and
    m=00	       # change the minute
    if [[ $h = 12 ]]  # might need to toggle AM PM
    then
      if [[ $a = "AM" ]]
      then
        a="PM"
      else
        a="AM"
      fi
      c=1
    fi
  fi
  if [[ $h = 13 ]]     # Now we also need to check for the hour being too high
  then 
    h=1
  fi
  echo "time: $h:$m $a"
  artist=`/bin/cat /home/rick/projects/radioPlaylist/savedPage.html | /bin/grep ">$h:$m $a" -A 1 | /usr/bin/tail -n1 | /bin/sed 's/<td nowrap><span class=blackMain11px>//' | /bin/sed 's/<\/td>/\n/' | /usr/bin/head -n1` 
  if [[ $artist = "" ]] # if the artist still has not been found
  then                  # then set the time back to normal
    if [[ $c = 1 ]] # if we changed the am/pm setting
    then            # then reset it
      a=$3
      c=0
    fi
    h=$1
    m=$2
  fi
fi

while [[ $artist = "" ]] #--If we didn't find an artist
do			 # then continue to subtract a minute till we find one
  m=`/usr/bin/expr $m - 1`
  if [[ $m = -1 ]]     #--Obviously we can't check 2:-1 oclock
  then
    h=`/usr/bin/expr $h - 1`   #decrement the hour and
    m=59               # change the minute
    if [[ $h = 0 ]]  # Need to change from 0:00 to 12:00
    then
      h=11
    fi
    if [[ $h = 11 ]] # this is where we might need to toggle AM/PM
    then  
      if [[ $m = 59 ]]
      then
        if [[ $a = "AM" ]]
        then
          a="PM"
        else
          a="AM"
        fi
      fi
    fi
  fi
  if [[ $h = 13 ]]     # Now we also need to check for the hour being too high
  then
    h=1
  fi
  if [[ $m -lt 10 ]]     # the earlier correction stuff makes anything<0 look like: 12:1 instead of 12:01.  We have to add that zero
  then
    m="0$m"
  fi
  echo "time: $h:$m $a"
  artist=`/bin/cat /home/rick/projects/radioPlaylist/savedPage.html | /bin/grep ">$h:$m $a" -A 1 | /usr/bin/tail -n1 | /bin/sed 's/<td nowrap><span class=blackMain11px>//' | /bin/sed 's/<\/td>/\n/' | /usr/bin/head -n1`
done

echo "Artist found!" >> /home/rick/playlist.log
echo "Searching for song title..." >> /home/rick/playlist.log

#-----Get the Song---------
song=`/bin/cat /home/rick/projects/radioPlaylist/savedPage.html | /bin/grep ">$h:$m $a" -A 1 | /usr/bin/tail -n1 | /bin/sed 's/D><td nowrap><span class=blackMain11px>/\n/' | /usr/bin/tail -n1 | /bin/sed 's/<\/td>/\n/' | /usr/bin/head -n1`

echo "Song title found!" >> /home/rick/playlist.log
echo "Saving song information to file..." >> /home/rick/playlist.log

#------Save the artist and song------
date=`/bin/date +%m-%d-%Y` # det todays date so we can start a list for all songs found today

echo "$artist - $song" >> /media/radioLists/$date # save song in file

echo "Song info saved!" >> /home/rick/playlist.log