#!/bin/bash

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

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
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 installation 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)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name
with_mysql=$(ynh_app_setting_get --app=$app --key=with_mysql)
with_sftp=$(ynh_app_setting_get --app=$app --key=with_sftp)
password=$(ynh_app_setting_get --app=$app --key=password)
phpversion=$(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 "

#=================================================
# 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"

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

if [ $with_sftp -eq 1 ]
then
	groups="sftp.app"
else
	groups=""
fi

ynh_system_user_create --username=$app --home_dir="$final_path" --groups="$groups"

if [ -n "$password" ]
then
	# Add the password to this user
	chpasswd <<< "${app}:${password}"
fi

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

ynh_restore_file --origin_path="$final_path"

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

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

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

# Define and install dependencies

if ! ynh_package_is_installed --package="gemserv-ynh-deps"
then
	yunohost tools update
	yunohost app install gemserv --force
fi

ynh_install_app_dependencies $pkg_dependencies

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

if [ $with_mysql -eq 1 ]; then
	ynh_script_progression --message="Restoring the MySQL database..."

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

#=================================================
# RESTORE VARIOUS FILES
#=================================================
ynh_script_progression --message="Restoring various files..."

ynh_restore_file --origin_path="/etc/gemserv/config.d/$domain.toml"

ynh_systemd_action --service_name=gemserv --action=reload

#=================================================
# APPLY RIGHTS
#=================================================
ynh_script_progression --message="Apply rights..."

chown -R $app:www-data "$final_path"

# Home directory of the user needs to be owned by root to allow
# SFTP connections
chown root:root "$final_path"
setfacl -m g:$app:r-x "$final_path"
setfacl -m g:www-data:r-x "$final_path"
setfacl -m g:gemserv:r-x "$final_path"
chmod o-rwx "$final_path"

#=================================================
# 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 $app"