#!/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)
account_domain=$(ynh_app_setting_get --app="$app" --key=account_domain)
port=$(ynh_app_setting_get --app="$app" --key=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)
datadir=$(ynh_app_setting_get --app="$app" --key=datadir)

#=================================================
# 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 $app service integration..." --weight=1
	yunohost service remove "$app"
fi

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

# Remove the dedicated systemd config
ynh_remove_systemd_config

#=================================================
# REMOVE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Removing the PostgreSQL database..." --weight=5

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

#=================================================
# REMOVE DEPENDENCIES
#=================================================
ynh_script_progression --message="Removing dependencies..." --weight=5

# Remove metapackage and its dependencies
ynh_remove_app_dependencies

#=================================================
# 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 APP DATA DIR
#=================================================
ynh_script_progression --message="Removing app data directory..." --weight=1

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

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

# Remove the dedicated NGINX config of the main domain
ynh_remove_nginx_config

# Remove the dedicated NGINX config for the account domain, if applicable
if [ "$domain" != "$account_domain" ] && [ -n "$account_domain" ]; then 

	# switching domain name for tricking ynh_add_nginx_config (who supports only the 'domain' variable)
	domain_backup="$domain"
	domain="$account_domain"

	ynh_remove_nginx_config

	# undo the trick
	domain="$domain_backup"
fi

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

# Remove the app-specific logrotate config
ynh_remove_logrotate

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

if yunohost firewall list | grep -q "\- $port$"
then
	ynh_script_progression --message="Closing port $port..." --weight=1
	ynh_exec_warn_less yunohost firewall disallow TCP "$port"
fi

#=================================================
# SPECIFIC REMOVE
#=================================================
# REMOVE VARIOUS FILES
#=================================================
ynh_script_progression --message="Removing various files..." --weight=1

# 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..." --weight=1

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

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

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