#!/bin/bash

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

source _common.sh
source ynh_redis
source ynh_send_readme_to_admin__2
source ynh_apps
source /usr/share/yunohost/helpers

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

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
port=$(ynh_app_setting_get --app=$app --key=port)
rtmp_port=$(ynh_app_setting_get --app=$app --key=rtmp_port)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$(ynh_app_setting_get --app=$app --key=db_user)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
admin_mail=$(ynh_user_get_info --username=$admin --key="mail")
datadir=$(ynh_app_setting_get --app=$app --key=datadir)
path_url=$(ynh_app_setting_get --app=$app --key=path)
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 >/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_config

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

# Remove the app-specific logrotate config
ynh_remove_logrotate

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

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

#=================================================
# REMOVE THE REDIS DATABASE
#=================================================
ynh_script_progression --message="Removing the redis database..."

ynh_redis_remove_db "$redis_db"

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

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

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

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

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

# Remove the dedicated NGINX config
ynh_remove_nginx_config

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

# Remove metapackage and its dependencies
ynh_remove_nodejs
ynh_remove_app_dependencies
ynh_remove_apps

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

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

#=================================================
# SPECIFIC REMOVE
#=================================================
# REMOVE VARIOUS FILES
#=================================================
ynh_script_progression --message="Removing various files..."

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

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

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

#=================================================
# SEND A README FOR THE ADMIN
#=================================================
ynh_script_progression --message="Sending a readme for the admin..."

ynh_send_readme_to_admin --app_message="../conf/msg_remove" --recipients=$admin_mail --type='remove'

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

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