#!/bin/sh -e

upgrade_conffile() {
    new_file="$1"
    old_file="$2"
    old_md5sum="$3"

    if [ -f "$old_file" ]; then
        md5sum="`md5sum \"$old_file\" | sed -e \"s/ .*//\"`"
    
        if [ $md5sum != $old_md5sum ]; then
            if [ ! -d `dirname $new_file` ]; then
                mkdir -p `dirname $new_file` > /dev/null 2>&1 || true
            fi
        
            cp -fa "$old_file" "$new_file"
        fi
    fi
}

# Upgrade conffiles for mozilla-firefox -> firefox transition
if [ "$1" = 'install' ]; then
    if [ ! -d /etc/iceweasel ]; then
        upgrade_conffile /etc/iceweasel/iceweaselrc \
            /etc/mozilla-firefox/mozilla-firefoxrc \
            'fa562ca63014f5e9dd470a37766376d6'
        upgrade_conffile /etc/iceweasel/pref/iceweasel.js \
            /etc/mozilla-firefox/pref/firefox.js \
            '9b21e21aa3f8a0ab8f134ba04b8846ff'
        upgrade_conffile /etc/iceweasel/profile/bookmarks.html \
            /etc/mozilla-firefox/profile/bookmarks.html \
            'c8aeeddb2b9ee52199bcef9a809fc949'
        upgrade_conffile /etc/iceweasel/profile/localstore.rdf \
            /etc/mozilla-firefox/profile/localstore.rdf \
            'ea03cc19c2a3f622fa557cd8ea9da6eb'
        upgrade_conffile /etc/iceweasel/profile/search.rdf \
            /etc/mozilla-firefox/profile/search.rdf \
            '26d13f5d96ad118b5de5d234f9d052fa'
        upgrade_conffile /etc/iceweasel/profile/mimeTypes.rdf \
            /etc/mozilla-firefox/profile/mimeTypes.rdf \
            '69cdcb7e0209f2e9d29000ee1c0ee2f0'
        upgrade_conffile /etc/iceweasel/profile/chrome/userChrome-example.css \
            /etc/mozilla-firefox/profile/chrome/userChrome-example.css \
            '4788fdaa51b0a238cb21f5c2877ef06d'
        upgrade_conffile /etc/iceweasel/profile/chrome/userContent-example.css \
            /etc/mozilla-firefox/profile/chrome/userContent-example.css \
            'd3765c7d2de5626529195007f4b7144a'

        # More hacky way of upgrading from firefox

        if [ -d /etc/firefox ] && [ ! -d /etc/iceweasel ]; then
            mkdir /etc/iceweasel >/dev/null 2>&1 || true
            cp -a /etc/firefox/* /etc/iceweasel
	    #it can happen that /etc/firefox exists but doesn't
	    #contain a complete firefox configuration (e.g. if someone
	    #manually added stuff to it then purged firefox)
	    #so check files exist before trying to rename them
            if [ -e /etc/iceweasel/firefoxrc ]; then
		mv -f /etc/iceweasel/firefoxrc /etc/iceweasel/iceweaselrc
	    fi
            if [ -e /etc/iceweasel/pref/firefox.js ]; then
		mv -f /etc/iceweasel/pref/firefox.js \
        	    /etc/iceweasel/pref/iceweasel.js
	    fi
        fi
    fi
fi

#DEBHELPER#