#!/bin/bash
#******************************************************************
#ident my-sync-tb2nokia Time-stamp: <2011-11-18 08:28:46 bav>
#******************************************************************
#                Gerd Bavendiek http://linos.wordpress.com 16-11-11
#
# Usage: my-sync-tb2nokia <addressbook.vcf> <calendar.ics> <SyncEvolutionConfigName>
#
# Very dumb wrapper script for syncevolution.
# 
# Basically this script will use the provided addressbook.vcf and the
# calendar.ics to create files suitable for syncevolution. You must have
# created a (hopefully working) syncevolution configuration named
# SyncEvolutionConfigName in the first place. You really may want to read 
# http://TODO
# before running this. 
#
# See http://syncevolution.org for the real story.
#
#------------------------------------------------------------------
unset LANG

usage()
{
   echo $0 '<addressbook.vcf> <calendar.ics> <SyncEvolutionConfigName>'
   exit 0
}

###if [ $# -eq 0 ]; then usage; fi
case $1 in 
   '--help'|'-h') usage;;
esac

# With version 2.32.2-0ubuntu2 in Natty, evolution-data-server newer worked for me.
# For this reason I stick to Oneiric.
. /etc/lsb-release
if [ $DISTRIB_CODENAME != oneiric ]; then echo Sorry, Ubuntu Oneiric is the only platform I ever tested with success, aborting ...; exit 1; fi


# These are just for my personal comfort ...
EXPORTED_TB_ABOOK=${1:-~/Home.vcf}
EXPORTED_TB_CALENDAR=${2:-~/Home.ics}
SYNCEVOLUTION_CONFIG_NAME=${3:-e66}

if [ ! -r $EXPORTED_TB_ABOOK ]; then echo No exported Thunderbird addressbook $EXPORTED_TB_ABOOK found, aborting ...; exit 1; fi
if [ ! -r $EXPORTED_TB_CALENDAR ]; then echo No exported Thunderbird calendar $EXPORTED_TB_CALENDAR found, aborting ...; exit 1; fi

# We really need this package ...
dpkg -l evolution-data-server | sed -n '$p' | grep -q ^ii
if [ $? -ne 0 ]; then echo Package evolution-data-server seems not to be installed, aborting ...; exit 1; fi

# Check wether SyncEvolutionConfigName has been configured ...
syncevolution --quiet --print-config $SYNCEVOLUTION_CONFIG_NAME 1>/dev/null 2>&1
if [ $? -ne 0 ]; then echo Could not find such an syncevolution config $SYNCEVOLUTION_CONFIG_NAME, aborting ...; exit 1; fi


# Create evolution directories and files if necessary (first run !!!)
mkdir -p ~/.local/share/evolution/addressbook/system
mkdir -p ~/.local/share/evolution/calendar/system
mkdir -p ~/.local/share/evolution/tasks/system

EVOLUTION_CALENDAR=~/.local/share/evolution/calendar/system/calendar.ics

# Step 1 - create a simple (i.e. empty) task file. Currently we do not care about tasks anyway...
cat > ~/.local/share/evolution/tasks/system/tasks.ics <<EOF
BEGIN:VCALENDAR
CALSCALE:GREGORIAN
PRODID:-//Ximian//NONSGML Evolution Calendar//EN
VERSION:2.0
END:VCALENDAR
EOF
if [ $? -ne 0 ]; then 
   echo 'Error creating an empty Evolution tasks file, aborting ...'
   exit 1
fi

# Step 2 - create an Evolution calendar from an exported Thunderbird calendar

# At least e-calendar-factory did strange things during testing,
# eventually caching data in some way. Stopping it was the only
# solution found. Patrick - please forgive me this crude hack
killall -q /usr/lib/evolution/e-addressbook-factory
killall -q /usr/lib/evolution/e-calendar-factory


# This will not trigger, if there is no EVOLUTION_CALENDAR (first run)
if [ $EXPORTED_TB_CALENDAR -ot $EVOLUTION_CALENDAR ]; then
   echo Your exported Thunderbird calendar seems to be older than the Evolution Calendar ...
   echo "Consider a fresh export before starting over !"
   exit 1
fi

# TODO Patrick's feedback: Could this be done be means of SE ?

# Just to make sure that this file looks as expected
sed -n 2p $EXPORTED_TB_CALENDAR | grep -q 'Mozilla Calendar'
if [ $? -ne 0 ]; then echo 'Sorry, your exported Thunderbird calendar does not look familiar (line 2), aborting ...'; exit 1; fi
sed -n 4p $EXPORTED_TB_CALENDAR | grep -q 'BEGIN:VTIMEZONE'
if [ $? -ne 0 ]; then echo 'Sorry, your exported Thunderbird calendar does not look familiar (line 4), aborting ...'; exit 1; fi

# Now we should be somewhat safe ...
echo -e 'BEGIN:VCALENDAR\r\nCALSCALE:GREGORIAN\r\nPRODID:-//Ximian//NONSGML Evolution Calendar//EN\r' > $EVOLUTION_CALENDAR
sed -n '3,$p' $EXPORTED_TB_CALENDAR >> $EVOLUTION_CALENDAR
if [ $? -eq 0 ]; then 
   echo 'Created new Evolution calendar from your exported Thunderbird calendar ...'
else
   echo 'Error creating new Evolution calendar from your exported Thunderbird calendar, aborting ...'
   exit 1
fi

# Step 3 - create an empty addressbook and then fill it from the exported Thunderbird addressbook
syncevolution --delete-items @default addressbook '*' 
if [ $? -ne 0 ]; then 
   echo 'Error deleting the addressbook, aborting ...'
   exit 1
fi
syncevolution --import $EXPORTED_TB_ABOOK @default addressbook 
if [ $? -ne 0 ]; then 
   echo 'Error importing $EXPORTED_TB_ABOOK, aborting ...'
   exit 1
fi

# Step 4 - run syncevolution 
syncevolution --run printChanges=0 dumpData=0 $SYNCEVOLUTION_CONFIG_NAME
# No need to check for the returncde here. syncevolution gives a pretty clear feedback ...