## arg 1:  the new package version
#pre_install() {
	# do something here
#}

# arg 1:  the new package version
post_install() {
    echo "changing the remote GIT source to BARE on node"
    cd /opt/ethoscope-device
    git remote set-url origin git://node/ethoscope.git

    echo "setting GIT branch"
    git checkout dev
    
    echo "installing python package"
    cd /opt/ethoscope-device/src
    python setup.py develop
    
    echo "create 000 machine files"
    echo "ETHOSCOPE_000" > /etc/machine-name
    echo "ETHOSCOPE_000" > /etc/hostname
    
    echo "create a default wlan0 file"
    echo "Description='ethoscope_wifi'" > /etc/netctl/wlan
    echo "Interface=wlan0" >> /etc/netctl/wlan
    echo "Connection=wireless" >> /etc/netctl/wlan
    echo "Security=wpa" >> /etc/netctl/wlan
    echo "IP=dhcp" >> /etc/netctl/wlan
    echo "TimeoutDHCP=60" >> /etc/netctl/wlan
    echo "ESSID=ETHOSCOPE_WIFI" >> /etc/netctl/wlan
    echo "Key=ETHOSCOPE_1234" >> /etc/netctl/wlan
    
    echo "create a default eth0 file"
    echo "Description='Ethernet'" > /etc/netctl/ether
    echo "Interface=eth0" >> /etc/netctl/ether
    echo "Connection=ethernet" >> /etc/netctl/ether
    echo "IP=dhcp" >> /etc/netctl/ether
    
    echo "use netctl instead of networkd"
    systemctl stop systemd-networkd
    systemctl disable systemd-networkd
    ip link set eth0 down
    ip link set wlan0 down

    netctl enable ether
    netctl enable wlan

    # netctl-auto is for wireless connections only, 
    systemctl start netctl-auto@wlan
    systemctl enable netctl-auto@wlan

    # ifplugd for wired connections  
    systemctl enable netctl-ifplugd@eth0
    systemctl start netctl-ifplugd@eth0
    
    echo "configure the NTP file"
    echo 'server node' > /etc/ntp.conf
    echo 'server 127.127.1.0' >> /etc/ntp.conf
    echo 'fudge 127.127.1.0 stratum 10' >> /etc/ntp.conf
    echo 'restrict default kod limited nomodify nopeer noquery notrap' >> /etc/ntp.conf
    echo 'restrict 127.0.0.1' >> /etc/ntp.conf
    echo 'restrict ::1' >> /etc/ntp.conf
    echo 'driftfile /var/lib/ntp/ntp.drift' >> /etc/ntp.conf
    
    echo "enabling DEVICE specific systemd service files"
    systemctl enable ethoscope_device.service ethoscope_listener.service ethoscope_update.service 
    systemctl enable ntpd.service mysqld.service sshd.service mysqld.service avahi-daemon.service
    #systemctl enable fake-hwclock fake-hwclock-save.timer
    
    echo "Set up mysql database"
    mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql
    systemctl start mysqld.service
    mysql -u root -e "CREATE USER 'ethoscope'@'localhost' IDENTIFIED BY 'ethoscope'"
    mysql -u root -e "CREATE USER 'ethoscope'@'%' IDENTIFIED BY 'ethoscope'"
    mysql -u root -e "GRANT ALL PRIVILEGES ON *.* TO 'ethoscope'@'localhost' WITH GRANT OPTION";
    mysql -u root -e "GRANT ALL PRIVILEGES ON *.* TO 'ethoscope'@'%' WITH GRANT OPTION";
    chown -R mysql:mysql /var/lib/mysql

    echo "setup mariadb configuration"
    echo '[server]' > /etc/my.cnf.d/server.cnf
    echo 'log-bin=mysql-bin' >> /etc/my.cnf.d/server.cnf
    echo 'binlog_format=mixed' >> /etc/my.cnf.d/server.cnf
    echo 'expire_logs_days = 10' >> /etc/my.cnf.d/server.cnf
    echo 'max_binlog_size  = 100M' >> /etc/my.cnf.d/server.cnf

    echo "install picamera settings into the boot/config.txt"
    echo 'start_file=start_x.elf' > /boot/config.txt
    echo 'fixup_file=fixup_x.dat' >> /boot/config.txt
    echo 'disable_camera_led=1' >> /boot/config.txt
    echo 'gpu_mem=256' >> /boot/config.txt
    echo 'cma_lwm=' >> /boot/config.txt
    echo 'cma_hwm=' >> /boot/config.txt
    
    echo 'cma_offline_start=' >> /boot/config.txt
    echo 'hdmi_force_hotplug=1' >> /boot/config.txt

    # https://github.com/raspberrypi/firmware/issues/1167
    echo 'awb_auto_is_greyworld=1' >> /boot/config.txt

    echo 'Loading bcm2835 module'
    echo 'bcm2835-v4l2' > /etc/modules-load.d/picamera.conf
   
    echo "limiting journal log space"
    echo 'SystemMaxUse=250MB' >> /etc/systemd/journald.conf
   
    echo "generating locale"
    echo "en_GB.UTF-8 UTF-8" >> /etc/locale.gen
    locale-gen

    echo "disable bluetooth"
    echo 'dtoverlay=pi3-disable-bt' >> /boot/config.txt
   
    echo "Please reboot this PI now."
    
}

## arg 1:  the new package version
## arg 2:  the old package version
#pre_upgrade() {
    # do something here
#}

# arg 1:  the new package version
# arg 2:  the old package version
post_upgrade() {
    echo "changing the remote GIT source to BARE on node"
    cd /opt/ethoscope-device
    git remote set-url origin git://node/ethoscope.git

    #setting branch
    git checkout dev
}

# arg 1:  the old package version
pre_remove() {
    echo "disabling systemd service files"
    systemctl disable ethoscope_device.service ethoscope_listener.service ethoscope_update.service
}

## arg 1:  the old package version
#post_remove() {
    # do something here
#}