#!/bin/bash
set -eu  # exit on error ; treat unset variables as error

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

source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
is_public=$(ynh_app_setting_get $app is_public)
final_path="/var/www/$app"
data_path="/home/yunohost.app/$app"
db_name="$app"
db_user="mmuser"

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================

yunohost app checkurl "${domain}" -a "$app" \
  || ynh_die "Path not available: ${domain}"
test ! -d $final_path \
  || ynh_die "There is already a directory: $final_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================

ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================

ynh_restore_file "$final_path"

#=================================================
# RESTORE THE MYSQL DATABASE
#=================================================

db_pwd=$(ynh_app_setting_get $app mysqlpwd)
ynh_mysql_setup_db $db_user $db_name $db_pwd
ynh_mysql_connect_as $db_user $db_pwd $db_name < ./db.sql

#=================================================
# RECREATE THE DEDICATED USER
#=================================================

# Create the dedicated user (if not existing)
smtp_user="$app"
if ! ynh_system_user_exists "$smtp_user"; then
  smtp_password=$(ynh_app_setting_get $app smtp_password)
  useradd -M --shell /bin/false -p $(openssl passwd -1 "$smtp_password") "$smtp_user"
fi

#=================================================
# RESTORE USER RIGHTS
#=================================================

# Restore permissions on app files
chown -R www-data: $final_path
mkdir -p $data_path
chown -R www-data: $data_path

#=================================================
# RESTORE SSOWAT
#=================================================

if [ "$is_public" = "Yes" ];
then
  ynh_app_setting_set "$app" unprotected_uris "/"
fi

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================

# Define and install dependencies
# TODO: use ynh_install_app_dependencies once we'll stop supporting Yunohost < 2.6.4
command -v supervisorctl >/dev/null 2>&1 || sudo apt-get install -y supervisor

#=================================================
# RESTORE SUPERVISOR CONF
#=================================================

ynh_restore_file "/etc/supervisor/conf.d/$app.conf"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND START THE APP
#=================================================

sudo service nginx reload
sudo supervisorctl reload