#!/bin/bash

### A helper script for reading ebooks ###
# Copyright 2009 Ertug Karamatli

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

### USAGE ###
# 1. Set EBOOK_ARCHIVE setting to where your PDFs are.
# 2. Create a pageinfo dir somewhere and set EBOOK_PAGEINFO setting to
#    that dir.
# 3. Run this script.

### SETTINGS ###
EBOOK_ARCHIVE="/home/ertug/ebook/arsiv"
EBOOK_PAGEINFO="/home/ertug/ebook/pageinfo/"

### TODO ###
# - Show last page numbers on the menu


cd $EBOOK_ARCHIVE

OLD_IFS=$IFS
IFS='
'
pdfs=( $(find | grep '.pdf$') )
IFS=$OLD_IFS

unset m; i=0
for w in "${pdfs[@]}"; do
  m[i++]=$(ls -i "$w" | awk '{ print $1 }')
  m[i++]=$w
done
dialog --menu "Select a book" 0 0 0  "${m[@]}" 2> /tmp/readbook.dialog
INODE=$(cat /tmp/readbook.dialog)
FILE=$(find -inum $INODE | cut -b 3-)

cd $EBOOK_PAGEINFO
prevlp=$(cat "${FILE//\//-}.page")
xrandr -o left
cd $EBOOK_ARCHIVE
xpdf -rv -fullscreen "$FILE" $prevlp
xrandr -o normal
echo "Enter last page (default: $prevlp):"
read lp
if [ -z "$lp" ]; then
	lp=$prevlp
fi
cd $EBOOK_PAGEINFO
echo $lp > "${FILE//\//-}.page"