#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get "$app" domain)
port=$(ynh_app_setting_get "$app" port)
db_name=$(ynh_app_setting_get "$app" db_name)
db_user=$db_name
#final_path=$(ynh_app_setting_get "$app" final_path) #not used

#=================================================
# REMOVE SERVICE FROM ADMIN PANEL
#=================================================
# Remove a service from the admin panel, added by `yunohost service add`

yunohost service remove snmpd
yunohost service remove zabbix-server
yunohost service remove zabbix-agent

#=================================================
# REMOVE PHP-FPM CONFIGURATION
#=================================================

# Remove the dedicated php-fpm config
ynh_remove_fpm_config

#=================================================
# REMOVE DEPENDENCIES
#=================================================

timeout 5 systemctl stop zabbix-server || killall zabbix_server
systemctl disable zabbix-server
killall zabbix_server

timeout 5 systemctl stop zabbix-agent || killall zabbix_agentd
systemctl disable zabbix-agent
killall zabbix_agentd

DEBIAN_FRONTEND=noninteractive apt purge zabbix-release -y
ynh_remove_app_dependencies

#force removing if ynh_remove_app_dependencies not work (old zabbix version)
for zabbix_pkg in $(apt list --installed | grep -Po "\K(zabbix-.*)(?=/)")
do
    DEBIAN_FRONTEND=noninteractive apt purge --allow-change-held-packages "$zabbix_pkg" -y
done

#=================================================
# REMOVE THE MYSQL DATABASE
#=================================================

# Remove a database if it exists, along with the associated user
ynh_mysql_remove_db "$db_user" "$db_name"

#=================================================
# REMOVE NGINX CONFIGURATION
#=================================================

# Remove the dedicated nginx config
ynh_remove_nginx_config

#=================================================
# REMOVE LOGROTATE CONFIGURATION
#=================================================

# Remove the app-specific logrotate config
ynh_remove_logrotate

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

if yunohost firewall list | grep -q "\- $port$"
then
	echo "Close port $port" >&2
	yunohost firewall disallow TCP "$port" 2>&1
fi

#=================================================
# SPECIFIC REMOVE
#=================================================
# REMOVE THE CRON FILE
#=================================================

#remove symlink
rm /var/www/zabbix

# Remove a directory securely
ynh_secure_remove "/etc/zabbix"

# Remove the log files
ynh_secure_remove "/var/log/zabbix"

# Remove the pid/socket files
ynh_secure_remove "/run/zabbix"

# Remove the sudoers file
ynh_secure_remove "/etc/sudoers.d/zabbix"

#REMOVE NONFREE PART PATCH IF NEEDED (snmp-mibs-downloader (non-free) installed in version 1)
nonfreepackagelist=$(dpkg-query -W -f='${Section}\t${Package}\n' | grep ^non-free)
if [ $(echo $nonfreepackagelist | wc -l) -eq 1 ] && [ $(echo $nonfreepackagelist | grep -c "snmp-mibs-downloader") -eq 1 ] ;then 
	ynh_print_info "Removing snmp-mibs-downloader (non-free package)"
    cp /var/lib/dpkg/status{,.$(date "+%m%d%y")}
    ynh_replace_string --match_string=" snmp-mibs-downloader," --replace_string="" --target_file=/var/lib/dpkg/status
    DEBIAN_FRONTEND=noninteractive apt purge snmp-mibs-downloader -y
    if [ -f /etc/apt/sources.list.d/non-free.list ];then
        ynh_secure_remove /etc/apt/sources.list.d/non-free.list
    fi
fi


#=================================================
# GENERIC FINALIZATION
#=================================================
# REMOVE DEDICATED USER
#=================================================

# Delete a system user
ynh_system_user_delete zabbix