#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
port=$(ynh_app_setting_get --app=$app --key=port)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
datadir=$(ynh_app_setting_get --app=$app --key=datadir)
redis_db=$(ynh_app_setting_get --app=$app --key=redis_db)

#=================================================
# 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}-server" >/dev/null
then
	ynh_script_progression --message="Removing ${app}-server service integration..."
	yunohost service remove "${app}-server"
fi

if ynh_exec_warn_less yunohost service status "${app}-worker" >/dev/null
then
	ynh_script_progression --message="Removing ${app}-worker service integration..."
	yunohost service remove "${app}-worker"
fi

if ynh_exec_warn_less yunohost service status "${app}-beat" >/dev/null
then
	ynh_script_progression --message="Removing ${app}-beat service integration..."
	yunohost service remove "${app}-beat"
fi

#=================================================
# STOP AND REMOVE SERVICE
#=================================================
ynh_script_progression --message="Stopping and removing the systemd service..." --weight=1

ynh_systemd_action --service_name="${app}-beat" --action="stop" --log_path="systemd" --line_match="Stopped $app"
ynh_systemd_action --service_name="${app}-server" --action="stop" --log_path="systemd" --line_match="Stopped $app"
ynh_systemd_action --service_name="${app}-worker" --action="stop" --log_path="systemd" --line_match="Stopped $app"

# Remove the dedicated systemd config
ynh_remove_systemd_config --service="${app}-beat"
ynh_remove_systemd_config --service="${app}-server"
ynh_remove_systemd_config --service="${app}-worker"

ynh_secure_remove --file="/etc/systemd/system/$app.target"

#=================================================
# REMOVE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Removing the PostgreSQL database..." --weight=1

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

#=================================================
# REMOVE APP MAIN DIR
#=================================================
ynh_script_progression --message="Removing app main directory..." --weight=1

# Remove the app directory securely
ynh_secure_remove --file="$final_path"

#=================================================
# REMOVE DATA DIR
#=================================================

# Remove the data directory if --purge option is used
if [ "${YNH_APP_PURGE:-0}" -eq 1 ]
then
	ynh_script_progression --message="Removing app data directory..." --weight=1
	ynh_secure_remove --file="$datadir"
fi

#=================================================
# REMOVE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Removing NGINX web server configuration..." --weight=1

# Remove the dedicated NGINX config
ynh_remove_nginx_config

#=================================================
# REMOVE DEPENDENCIES
#=================================================
ynh_script_progression --message="Removing dependencies..." --weight=1

# Remove metapackage and its dependencies
ynh_remove_app_dependencies

#=================================================
# REMOVE FAIL2BAN CONFIGURATION
#=================================================
ynh_script_progression --message="Removing Fail2Ban configuration..." --weight=1

# Remove the dedicated Fail2Ban config
ynh_remove_fail2ban_config

#=================================================
# SPECIFIC REMOVE
#=================================================
# REMOVE THE REDIS DATABASE
#=================================================
ynh_script_progression --message="Removing the Redis database..." --weight=1

# Remove a database if it exists, along with the associated user
ynh_redis_remove_db $redis_db

#=================================================
# 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=$app

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

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