#!/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_print_info "Loading settings..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
path_url=$(ynh_app_setting_get $app path)
final_path=$(ynh_app_setting_get $app final_path)
db_name=$(ynh_app_setting_get $app db_name)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_print_info "Validating restoration parameters..."

ynh_webpath_available $domain $path_url \
	|| ynh_die "Path not available: ${domain}${path_url}"
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_print_info "Restoring the app main directory..."

ynh_restore_file "$final_path"

#=================================================
# RESTORE THE MYSQL DATABASE
#=================================================
ynh_print_info "Restoring the MySQL database..."

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

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_print_info "Recreating the dedicated system user..."

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

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

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

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_print_info "Reinstalling dependencies..."

# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies

#=================================================
# RESTORE THE CRON FILE
#=================================================

ynh_restore_file "/etc/cron.d/$app"

#=================================================
# BACKUP THE LOGROTATE CONFIGURATION
#=================================================

ynh_restore_file "/etc/logrotate.d/$app"

#=================================================
# RESTORE THE DATA DIRECTORY
#=================================================
ynh_print_info "Restoring data directory..."

datadir="/home/yunohost.app/$app/data"

# The data directory will be restored only if it exists in the backup archive
# So only if it was backup previously.
if [ -d "$YNH_BACKUP_DIR/apps/$app/backup/home/yunohost.app/$app" ]
then
	ynh_restore_file "$datadir"
else
	# Create app folders
	mkdir -p "$datadir"
fi

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

# Fix app ownerships & permissions
chown -R $app: "$final_path" "$datadir"
chmod 640 "$final_path/config/config.php"
chmod 755 /home/yunohost.app

# Iterate over users to extend their home folder permissions - for the external
# storage plugin usage - and create relevant Nextcloud directories
for u in $(ynh_user_list); do
    mkdir -p "$datadir/$u"
    setfacl --modify g:$app:rwx "/home/$u" || true
done

#=================================================
# YUNOHOST MULTIMEDIA INTEGRATION
#=================================================
ynh_print_info "Adding multimedia directories..."

# Build YunoHost multimedia directories
ynh_multimedia_build_main_dir
# Allow nextcloud to write into these directories
ynh_multimedia_addaccess $app

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

systemctl reload php7.0-fpm
systemctl reload nginx

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

ynh_print_info "Restoration completed for $app"