#!/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..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app="$app" --key=domain)
path_url=$(ynh_app_setting_get --app="$app" --key=path)
final_path=$(ynh_app_setting_get --app="$app" --key=final_path)
data_path=$(ynh_app_setting_get --app="$app" --key=data_path)
db_name=$(ynh_app_setting_get --app="$app" --key=db_name)
db_user=$db_name
phpversion=$(ynh_app_setting_get --app="$app" --key=phpversion)

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

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: $final_path "
test ! -d "$data_path" \
	|| ynh_die --message="There is already a directory: $data_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring 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 Moodle main directory..."

ynh_restore_file --origin_path="$final_path"

ynh_restore_file --origin_path="$data_path"

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

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

#=================================================
# RESTORE USER RIGHTS
#=================================================
ynh_script_progression --message="Restoring user rights..."

# Restore permissions on app files
chown -R "$app": "$final_path"
chown -R "$app": "$data_path"

#=================================================
# RESTORE THE PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring PHP-FPM configuration..."

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

# Recreate a dedicated PHP-FPM config
ynh_add_fpm_config --package="$extra_php_dependencies"

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..."

# Define and install dependencies
ynh_install_app_dependencies "$pkg_dependencies"

#=================================================
# RESTORE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=47

ynh_psql_test_if_first_run

db_pwd=$(ynh_app_setting_get --app="$app" --key=psqlpwd)
ynh_psql_setup_db --db_user="$db_user" --db_name="$db_name" --db_pwd="$db_pwd"
ynh_psql_connect_as --user="$db_user" --password="$db_pwd" --database="$db_name" < ./db.sql

#=================================================
# RESTORE THE CRON FILE
#=================================================
ynh_script_progression --message="Restoring the cron file..."

ynh_restore_file --origin_path="/etc/cron.d/$app"

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

ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Restoration completed for Moodle" --last