#!/bin/bash

export logfile="/var/log/sysupdate.log"
export tmpfile=/tmp/shadowarch-cowerfile
unset apply

while getopts "al:h" OPTION
do 
    case $OPTION in
        a) export apply="true"; ;;
        c) export logfile=${OPTARG}; ;;
        *) printf "ShadowArch Update Checker\n-a Apply changes\n-l Logfile\n-h Show this helptext\n"; exit 1;;
    esac;
done

date > $logfile

# Update
echo == Updating Arch Packages == | tee -a $logfile
if [ ! -z "$apply" ]; then
    pacman -Syu 2>&1 | tee -a $logfile # I've been having troubles with this causing crashes while online.
    # Hook for MediaWiki
    if [ `grep $(date +%F) /var/log/pacman.log | grep -c mediawiki` -eq 1 ] && [ -d /usr/share/webapps/mediawiki ]; then
        php /usr/share/webapps/mediawiki/maintenance/update.php | tee -a $logfile
        for i in `find /usr/share/webapps/ -maxdepth 1 -type d | grep mediawiki\-`; do
            rsync -avz --exclude images --exclude Images --exclude LocalSettings.php /usr/share/webapps/mediawiki/ "$i"
            php "$i"/maintenance/update.php
        done
    fi
    # Hook for Grimoire
    if [ `grep $(date +%F) /var/log/pacman.log | grep -c 'upgraded postgresql '` -eq 1 ]; then
        echo "Updating PostGreSQL databases" | tee -a $logfile
        #Clear old backups.
        rm -Rf /var/lib/postgres/olddata
        #Stop the service and save old database version.
        if [ -f /usr/lib/systemd/system/grimoire.service ]; then systemctl stop grimoire; else systemctl stop postgresql.service; fi
        su -l postgres -c 'mv /var/lib/postgres/data /var/lib/postgres/olddata'
        # Init new database and upgrade.
        su -l postgres -c 'initdb --locale en_US.UTF-8 -E UTF8 -D /var/lib/postgres/data' | tee -a $logfile
        upstr=`grep "$(date +%F)" /var/log/pacman.log | grep 'upgraded postgresql '`
        oldver=`echo $upstr | rev | cut -f 2 -d '>' | cut -f 1 -d '(' | rev | sed s/\ -//`
        newver=`echo $upstr | rev | cut -f 1 -d '>' | cut -f 2 -d ')' | rev`
        # Upgrade the database.
        su -l postgres -c "pg_upgrade -d /var/lib/postgres/olddata/ -D /var/lib/postgres/data/ -b /opt/pgsql-$oldver/bin/ -B /usr/bin/" | tee -a $logfile
        # Create dump file for restores.
        /opt/pgsql-$oldver/bin/pg_ctl -D /var/lib/postgres/olddata/ start
        /opt/pgsql-$oldver/bin/pg_dumpall >> /var/lib/postgres/olddata/dump.psql
        /opt/pgsql-$oldver/bin/pg_ctl -D /var/lib/postgres/olddata/ stop
        # Restart the service.
        if [ -f /usr/lib/systemd/system/grimoire.service ]; then systemctl start grimoire; else systemctl start postgresql.service; fi
        echo "Updated PostGreSQL databases" | tee -a $logfile
    fi
else
    checkupdates | tee -a $logfile
fi
echo | tee -a $logfile

# Get AUR list of update candidates
echo == AUR Candidate List == | tee -a $logfile
if [ ! -z "$apply" ]; then
    cower -u | cut -f 2 -d ' ' &> $tmpfile
    echo Edit the package list.
    read
    ${EDITOR} ${tmpfile}
    chmod 0755 $tmpfile;
    printf "What deprivileged user do you want to use? "
    read deprivuser;
    sudo -u "$deprivuser" /bin/bash -c "for i in `cat $tmpfile`; do cd /usr/local/src/"$i"; git pull; makepkg -sri; done"
    (echo Updated the following AUR packages:; cat $tmpfile) | tee -a $logfile
    rm $tmpfile;
else 
    cower -u | tee -a $logfile
fi
echo | tee -a $logfile

# Update AniNIX packages
echo == Updating AniNIX Packages == | tee -a $logfile
if [ ! -z "$apply" ]; then
    for i in `find /usr/local/src/ -maxdepth 6 -type f -name config -exec egrep -l aninix\|foundation {} \; | sed 's#.git/config$##'`; do
        cd "$i"
        git pull
        make
        make install
    done
fi



# Generate list of installed packages
echo == Generated installed-packages list == | tee -a $logfile
pacman -Qqe | egrep '^[a-z]' | sed 's#local/##' > /var/log/installed-packages.txt

# Generate list of orphaned packages
echo == Generated orphaned-packages list == | tee -a $logfile
pacman -Qdtq > /var/log/orphaned-packages.txt
echo | tee -a $logfile
date | tee -a $logfile
printf '\n\n' | tee -a $logfile

if [ -z "$apply" ]; then cat $logfile | mail -s "AniNIX::$(hostname) Update Candidates" sh1k0b4@gmail.com; fi