#!/bin/bash
#
# Name: e10update 
Version="0.2.20070514"
# Calls: pmplib & pmplib-tools (pmplib.sourceforge.net, tested with version 0.14), zenity
# What does it do?: Updates the iRiver E10 by: entering its directory, running easypmp in 
# it, with your chosen option, then unmounting the directory as we finish.
# Maintained by: ketil.w.aanensen@gmail.com
#
# Thanks to people at ubuntuforums.org and developers of pmplib
# Disclaimer: All the usual stuff. I take no responsibility for loss of 
# data, heartache, headache, etc, ad nauseum, as a result of using this 
# script. Having said that, it's so simple, I can't imagine it breaking 
# anything.
# Note for Ubuntu Feisty Fawn users: Eject is broken in current Ubuntu.
# That means the script does not handle that command. Eject works as sudo, 
# but I'm very reluctant to incorporate sudo in a script like
# this. Just remember to manually eject/unmount your player before you 
# unplug, or change the unmount command. Package "pmount" works, and you could use that.

{

# On Ubuntu (Edgy and Feisty, at least) the E10 mounts on /media/E10. This 
# might be different with your setup. Find out where your player is mounted
# and change the following line to reflect your setup. The variable 
# "playerdir" is then used throughout this script.
playerdir="/media/E10"

# As noted before, package eject is broken on current Ubuntu. Pmount can be used, but is not installed by default.
# Set your preferred unmount/eject command between the quotes in the following line:
unmount_player="eject"

# Start with an introductory message, in case user started by mistake.

if $(zenity --question --text="You've started an EasyPMP-script ($Version)\n\nWould you like to update your iRiver E10?" --title="Confirm")
then

# Enter the player directory

cd $playerdir
EASY_EXIT=$?
if [ $EASY_EXIT != 0 ]; then
    echo $(zenity --error --text="$playerdir does not exist!\n\nEnsure that your player is connected and mounted" --title="Error")
    exit 1
fi

# What does the user want to do?

output_list=`zenity --height=200 --text="* 'Create database' sets up your database without sorting 'the'. That means\n   'The Who' will be listed on 'W'\n* 'Create database, sorted after 'the'' puts 'The Who' in 'T'\n* 'Create database, specify prefix' lets you decide which words you wish to ignore.\n\n* Playlist conversion converts playlists that are on your device, but you need\n   to put them in the right directory before running this\n\nChoose action from list" --title="Choose from list" --list  --radiolist --height=250 --width=500 --column "Choose" --column "Command" TRUE "Create database" FALSE "Create database, sorted after 'the'" FALSE "Create database, specify prefix" FALSE "Convert new playlists" FALSE "Force conversion of playlists" `

# Declare what the output of the former command should translate to
#
# Like this:
# IF former user input option returns exactly "blablabla",
# THEN 
# define variable $HANDLE like "blablabla-response", and 
# define variable $ERRORMESSAGE like "blablabla-error-response"

#      1st possibility:
#    From man easypmp:
#    -c, --create: 
#    Create  a  new  music database from scratch.  The music files in
#    the directory on the device used  for  storing  music  files  is
#    scanned  recursively  for music files.  For each file found, the
#    meta-data stored in that file -  including  the  genre,  artist,
#    album  and  track  name  - is read, and used to add a record for
#    that file in the music database stored on the device.
#
#    easypmp -ct the will strip the word ’The’ from  the
#    start   of   artist   names.    Hence,   ’The Proclaimers’   and
#    ’The Cat Empire’ will appear in  the  music  database  as  ’Pro‐
#    claimers’ and ’Cat Empire’ respectively.

if [ "$output_list" = "Create database" ];
then
    HANDLE="-ct the"
    ERRORMESSAGE="create a new database, ignoring 'the'"

#    Next option, if above fails:
#
#      2nd possibility:
#    Same as above, only without the "t" option. That means, no prefixes are stripped.

elif [ "$output_list" = "Create database, sorted after 'the'" ];
then
    HANDLE="-c"
    ERRORMESSAGE="create database sorting 'the'"

#    Next option, if above fails:
#
#      3rd possibility:
#    From man easypmp:
#    -t csv-word-list, --strip-words=csv-word-list
#    Specify a list of words to remove from the start of artist names
#    when adding new tracks to  the  database.   The  list  of  words
#    should  be  comma-separated: that is, a comma (,) should be used
#    to between each word.
#    The  list  is  not  limited  to  individual words.  Phrases that
#    include spaces may also be specified from the command  line,  by
#    including  the  whole  list  in  quotes, separating each word or
#    phrase by a comma.  For  example:  easypmp  -ct  ’the,pipes  and
#    drums of’.
#    When  used with the -u/--update option, only new tracks that are
#    not already in the database are affected by this option.  To use
#    this  option with all tracks, including those that already exist
#    in the database, it is necessary to re-build the  database  with
#    -c/--create.   This  option does not modify music files, it only
#    has an effect on the music database.

elif [ "$output_list" = "Create database, specify prefix" ];
then
    strip_list=`zenity  --title "Enter words" --entry --text "Enter words that should be excluded from sorting. Use comma as a separator" `
    HANDLE="-ct $strip_list"
    ERRORMESSAGE="create a database with specified prefixes excluded from sorting"

#    Next option, if above fails:
#
#      4th possibility:
#    From man easypmp:
#    -p, --playlist
#    programs for playing music allow playlists  to  be  created
#    and  saved  on  disk,  ready to be played later.  Such playlists
#    frequently  have  a  .m3u  or  .pls  extension.   However,   the
#    playlists  saved  by  most  programs  cannot be used directly on
#    portable media players.  Instead, it is necessary to convert (or
#    ‘compile’) each playlist into a format that the media player can
#    read.  When the -p/--playlist option is specified, easypmp  will
#    search  the  playlist  directory  on the device or the directory
#    specified by -P/--playlist-source option for playlists that  can
#    be converted into a form that the media player can read (see the
#    DESCRIPTION section above for information on  how  to  determine
#    the playlist directory for a particular media player).

elif [ "$output_list" = "Convert new playlists" ];
then
    HANDLE=-p
    ERRORMESSAGE="convert new playlists"

#    Next option, if above fails:
#
#      5th possibility:
#    From man easypmp:
#    -r, --reconvert
#    Overwrite the existing playlists to force conversion.

elif [ "$output_list" = "Force conversion of playlists"  ];
then
    HANDLE=-r
    ERRORMESSAGE="force conversion of all playlists"

#    Last option, if "Cancel" is clicked:
#
#      6th possibility:
#    Just exit the script


elif [ "$output_list" = "" ];
then
    exit 1
fi

# Update player using pmplib and the selected option.
# While easypmp runs, show simple progress dialog, to make the user understand that
# something's running.
# PIPESTATUS is used to make the script realize that what matter is the first command from the
# preceding line. 0 = the first command, 1 = the second...

easypmp $HANDLE | zenity --progress --pulsate --auto-close --title="Updating" --text="Updating iRiver E10...\n\nPlease wait for the operation to finish"
if [ "${PIPESTATUS[0]}" != "0" ]; then
    echo $(zenity --error --text="You tried running the command 'easypmp $HANDLE'\n\nYour attempt to $ERRORMESSAGE failed\n\n Bye!" --title="Error!")
    exit 1
fi

# Exit to home-folder. (The player will not unmount if you stay in its dir.) 
# The error message is just to show where the script died if t did. The likelihood of bash
# not being able to cd into /home/whoever-called-the-script is about 0

cd ~
EASY_EXIT=$?
if [ $EASY_EXIT != 0 ]; then
    echo $(zenity --error --text="Can't navigate to home directory\n\nThis can't be right..." --title="Unlikely error")
    exit 1
fi

# Unmount the player, making it ready to unplug

$unmount_player $playerdir
EASY_EXIT=$?
if [ $EASY_EXIT != 0 ]; then
    echo $(zenity --error --text="Could not unmount your player\n\nYou have to either\na) find a way to manually eject your player, \nb)change the 'unmount_player' variable to something that works or \nc) turn of the computer before you unplug your player\n\nIf you're using Ubuntu Feisty Fawn, this is probably due to a bug in package 'eject'\n\n(If the script brought you to this point, your player is still updated)" --title="Error")
    exit 1
fi

# Bye-bye!

zenity 	--info --title "Update finished" --text "Your player is updated and ready to disconnect. Enjoy!"

fi
}