#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=3

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=special_domain)
server_name=$(ynh_app_setting_get --app=$app --key=server_name)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
synapse_tls_port=$(ynh_app_setting_get --app=$app --key=synapse_tls_port)
turnserver_tls_port=$(ynh_app_setting_get --app=$app --key=turnserver_tls_port)
turnserver_alt_tls_port=$(ynh_app_setting_get --app=$app --key=turnserver_alt_tls_port)

#=================================================
# SET CONSTANTS
#=================================================

synapse_user="matrix-$app"
synapse_db_name="matrix_$app"
synapse_db_user="matrix_$app"
upstream_version=$(ynh_app_upstream_version)

#=================================================
# STANDARD REMOVE
#=================================================
# REMOVE SERVICE FROM ADMIN PANEL
#=================================================

# Remove a service from the admin panel, added by `yunohost service add`
if yunohost service status matrix-$app >/dev/null 2>&1
then
	yunohost service remove matrix-$app
fi

if yunohost service status coturn-$app >/dev/null 2>&1
then
	yunohost service remove coturn-$app
fi

#=================================================
# STOP AND REMOVE SERVICE
#=================================================
ynh_script_progression --message="Stopping and removing the systemd service" --weight=2

ynh_remove_systemd_config --service=matrix-$app
ynh_remove_systemd_config --service=coturn-$app

#=================================================
# REMOVE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Removing the PostgreSQL database" --weight=2

# Remove a database if it exists, along with the associated user
ynh_psql_remove_db --db_user=$synapse_db_name --db_name=$synapse_db_user

#=================================================
# REMOVE DEPENDENCIES
#=================================================
ynh_script_progression --message="Removing dependencies" --weight=15

# Remove metapackage and its dependencies
ynh_remove_app_dependencies

#=================================================
# SETUP SSOWAT
#=================================================

# Remove the skipped url
python3 ../conf/remove_sso_conf.py

#=================================================
# REMOVE APP MAIN DIR
#=================================================
ynh_script_progression --message="Removing app main directory" --weight=2

ynh_secure_remove --file=$final_path
ynh_secure_remove --file=/var/lib/matrix-$app
ynh_secure_remove --file=/var/log/matrix-$app
ynh_secure_remove --file=/etc/matrix-$app
ynh_secure_remove --file=/etc/default/matrix-$app
ynh_secure_remove --file=/etc/default/coturn-$app
ynh_secure_remove --file=/etc/nginx/conf.d/${server_name}.d/${app}_server_name.conf

#=================================================
# REMOVE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Removing nginx web server configuration" --weight=2

# Remove the dedicated nginx config
ynh_remove_nginx_config

#=================================================
# REMOVE LOGROTATE CONFIGURATION
#=================================================
ynh_script_progression --message="Removing logrotate configuration" --weight=1

# Remove the app-specific logrotate config
ynh_remove_logrotate

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

closeport() {
    local port=$1
    if yunohost firewall list | grep -q "\- $port$"
    then
            ynh_script_progression --message="Closing port $port"
            ynh_exec_warn_less yunohost firewall disallow Both $port
    fi
}

closeport $synapse_tls_port
closeport $turnserver_tls_port
closeport $turnserver_alt_tls_port

#=================================================
# REMOVE FAIL2BAN CONFIGURATION
#=================================================
ynh_script_progression --message="Removing fail2ban configuration..." --weight=8

# Remove the dedicated fail2ban config
ynh_remove_fail2ban_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# REMOVE DEDICATED USER
#=================================================
ynh_script_progression --message="Removing the dedicated system user" --weight=1

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

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

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