#!/bin/bash

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

source _common.sh
source ynh_add_swap
source ynh_redis
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_api_gateway=$(ynh_app_setting_get --app=$app --key=port_api_gateway)
port_auth=$(ynh_app_setting_get --app=$app --key=port_auth)
port_auth_worker=$(ynh_app_setting_get --app=$app --key=port_auth_worker)
port_files=$(ynh_app_setting_get --app=$app --key=port_files)
port_syncing_server=$(ynh_app_setting_get --app=$app --key=port_syncing_server)
port_syncing_server_worker=$(ynh_app_setting_get --app=$app --key=port_syncing_server_worker)
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)

#=================================================
# 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-api-gateway" >/dev/null
then
	ynh_script_progression --message="Removing $app-api-gateway service..." --weight=1
	yunohost service remove "$app-api-gateway"
fi
if ynh_exec_warn_less yunohost service status "$app-auth" >/dev/null
then
	ynh_script_progression --message="Removing $app-auth service..." --weight=1
	yunohost service remove "$app-auth"
fi
if ynh_exec_warn_less yunohost service status "$app-auth-worker" >/dev/null
then
	ynh_script_progression --message="Removing $app-auth-worker service..." --weight=1
	yunohost service remove "$app-auth-worker"
fi
if ynh_exec_warn_less yunohost service status "$app-files" >/dev/null
then
	ynh_script_progression --message="Removing $app-files service..." --weight=1
	yunohost service remove "$app-files"
fi
if ynh_exec_warn_less yunohost service status "$app-syncing-server" >/dev/null
then
	ynh_script_progression --message="Removing $app-syncing-server service..." --weight=1
	yunohost service remove "$app-syncing-server"
fi
if ynh_exec_warn_less yunohost service status "$app-syncing-server-worker" >/dev/null
then
	ynh_script_progression --message="Removing $app-syncing-server-worker service..." --weight=1
	yunohost service remove "$app-syncing-server-worker"
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 --service="$app-api-gateway"
ynh_remove_systemd_config --service="$app-auth"
ynh_remove_systemd_config --service="$app-auth-worker"
ynh_remove_systemd_config --service="$app-files"
ynh_remove_systemd_config --service="$app-syncing-server"
ynh_remove_systemd_config --service="$app-syncing-server-worker"

ynh_reset_systemd

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

# Remove the app-specific logrotate config
ynh_remove_logrotate

#=================================================
# REMOVE THE MYSQL DATABASE
#=================================================
ynh_script_progression --message="Removing the MySQL database..." --weight=1

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

#=================================================
# REMOVE REDIS DB
#=================================================
ynh_script_progression --message="Removing the Redis database..." --weight=1

ynh_redis_remove_db

#=================================================
# 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=10

# Remove metapackage and its dependencies
ynh_remove_app_dependencies
ynh_remove_nodejs

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

# Remove the dedicated Fail2Ban config
ynh_remove_fail2ban_config

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

# Remove a cron file
ynh_secure_remove --file="/etc/cron.d/$app"

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

#=================================================
# REMOVE SWAP
#=================================================
ynh_script_progression --message="Removing swap..."

if [ ${PACKAGE_CHECK_EXEC:-0} -eq 0 ]; then
	ynh_del_swap
fi

#=================================================
# 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