#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..."

app=$YNH_APP_INSTANCE_NAME

#=================================================
# STANDARD REMOVE
#=================================================
# REMOVE SERVICE INTEGRATION IN YUNOHOST
#=================================================

# Remove the service from the list of services known by YunoHost (added from `yunohost service add`)
if ynh_exec_warn_less yunohost service status $app >/dev/null
then
	ynh_script_progression --message="Removing $app service integration..."
	yunohost service remove $app
fi

#=================================================
# STOP AND REMOVE SERVICE
#=================================================
ynh_script_progression --message="Stopping and removing the systemd service..."

# Remove the dedicated systemd config
ynh_remove_systemd_socket_config
ynh_exec_warn_less  ynh_remove_systemd_config

#=================================================
# REMOVE DEPENDENCIES
#=================================================
ynh_script_progression --message="Removing dependencies..." --weight=20

# Remove metapackage and its dependencies
ynh_exec_warn_less  ynh_remove_app_dependencies

#=================================================
# CLOSE A PORT
#=================================================

if yunohost firewall list | grep -q "\- 67$"
then
	ynh_script_progression --message="Closing port 67..."
	ynh_exec_warn_less yunohost firewall disallow Both 67
fi

#=================================================
# SPECIFIC REMOVE
#=================================================
# REMOVE VARIOUS FILES
#=================================================

# Remove a directory securely
ynh_secure_remove --file="/etc/ld.so.conf.d/$app.conf"

ldconfig

ynh_secure_remove --file="/usr/local/lib/$app"

# Remove the log files
ynh_secure_remove --file="/var/log/$app"

ynh_secure_remove --file="/usr/local/bin/fuidshift"
ynh_secure_remove --file="/usr/local/bin/lxc"
ynh_secure_remove --file="/usr/local/bin/lxc-to-lxd"
ynh_secure_remove --file="/usr/local/bin/lxd"
ynh_secure_remove --file="/usr/local/bin/lxd-agent"
ynh_secure_remove --file="/usr/local/bin/lxd-benchmark"
ynh_secure_remove --file="/usr/local/bin/lxd-p2c"
ynh_secure_remove --file="/etc/bash_completion.d/lxd-client"

sed -i "/# Added by lxd$/{N;/root:100000:65536/d}" /etc/sub{u,g}id

ynh_secure_remove --file="/etc/dnsmasq.d/lxd"

systemctl restart dnsmasq

#=================================================
# GENERIC FINALIZATION
#=================================================
# REMOVE DEDICATED USER
#=================================================
ynh_script_progression --message="Removing the dedicated system user..."

# Delete a system user
ynh_system_user_delete --username=$app

#=================================================
# REMOVE CONTAINERS
#=================================================

# Remove the data directory if --purge option is used
if [ "${YNH_APP_PURGE:-0}" -eq 1 ]
then
	ynh_script_progression --message="Removing containers..."
	ynh_secure_remove --file="/var/lib/lxd"
fi

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Removal of $app completed" --last