#!/bin/bash

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

# source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading settings..." --weight=3

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..." --weight=2

ynh_webpath_available --domain=$domain --path_url=$path_url \
	|| ynh_die --message="Path not available: ${domain}${path_url}"
test ! -d $final_path \
	|| ynh_die --message="There is already a directory: $final_path "

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

ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring the app main directory..."

ynh_restore_file --origin_path="$final_path"

#=================================================
# RESTORE THE MYSQL DATABASE
#=================================================
ynh_script_progression --message="Restoring the MySQL database..." --weight=4

db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
ynh_mysql_setup_db --db_user=$db_name --db_name=$db_name --db_pwd=$db_pwd
ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name < ./db.sql

# Setup a privileged user for phpmyadmin (to prevent using MySQL root user)
db_admin_user=$(ynh_app_setting_get --app=$app --key=db_admin_user)
db_admin_pwd=$(ynh_app_setting_get --app=$app --key=db_admin_pwd)

if ! ynh_mysql_user_exists --user=$db_admin_user
then
  ynh_mysql_create_user "$db_admin_user" "$db_admin_pwd"
  ynh_mysql_execute_as_root --sql="GRANT ALL PRIVILEGES ON *.* TO '$db_admin_user'@'localhost' IDENTIFIED BY '$db_admin_pwd' WITH GRANT OPTION;
  FLUSH PRIVILEGES;" --database=mysql
fi

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Recreating the dedicated system user..." --weight=2

# Create the dedicated user (if not existing)
ynh_system_user_create --username=$app

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

# config.inc.php contains sensitive data, restrict its access
chown root:$app $final_path/config.inc.php

chown $app: $final_path/tmp

#=================================================
# RESTORE THE PHP-FPM CONFIGURATION
#=================================================

ynh_restore_file --origin_path="/etc/php/7.0/fpm/pool.d/$app.conf"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND PHP-FPM
#=================================================
ynh_script_progression --message="Reloading nginx web server and php-fpm..."

ynh_systemd_action --service_name=php7.0-fpm --action=reload
ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Restoration completed for $app" --last