#!/bin/bash

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

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
ynh_print_info "Loading installation 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 $app final_path)
upload=$(ynh_app_setting_get $app upload)
db_name=$(ynh_app_setting_get $app db_name)
db_pwd=$(ynh_app_setting_get $app mysqlpwd)
version=$(grep STD_VERSION $final_path/boot.php |  cut -c 38- | rev | cut -c 5- | rev)
last_update=$(grep  update_time: /etc/yunohost/apps/$app/settings.yml |  cut -c 14-)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================

# If db_name doesn't exist, create it
if [ -z $db_name ]; then
	db_name=$(ynh_sanitize_dbid $app)
	ynh_app_setting_set $app db_name $db_name
fi


#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_print_info "Backing up the app before upgrading (may take a while)..."

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	# restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors


#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# REMOVE APP MAIN DIR
#=================================================
ynh_print_info "Upgrading source files..."
# Create a temporary directory
tmpdir="$(ynh_smart_mktemp 6000)"
# Backup the config file in the temp dir
cp -a "$final_path/.htconfig.php" "$tmpdir/.htconfig.php"
cp -a "$final_path/store" "$tmpdir/store"
cp -a "$final_path/php.log" "$tmpdir/php.log"


# Remove the app directory securely
ynh_secure_remove "$final_path"

# If final_path doesn't exist, create it
if [ -z $final_path ]; then
	final_path=/var/www/$app
	ynh_app_setting_set $app final_path $final_path
fi

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path"
sudo cp -a "$tmpdir/store" "${final_path}"
sudo cp -a "$tmpdir/.htconfig.php" "${final_path}"
sudo cp -a "$tmpdir/php.log" "${final_path}"
sudo rm -Rf "$tmpdir"
sudo chmod -R 777 $final_path/store
sudo mkdir $final_path/addon
ynh_setup_source "$final_path/addon" "app_addons"


#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Upgrading nginx web server configuration..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Making sure dedicated system user exists..."

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

# Set right permissions for curl install
chown -R $app: $final_path

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_print_info "Upgrading php-fpm configuration..."

# Create a dedicated php-fpm config
ynh_add_fpm_config


### Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
### And create a backup of this file if the checksum is different. So the file will be backed up if the admin had modified it.
ynh_backup_if_checksum_is_different "$final_path/.htconfig.php"
# Recalculate and store the config file checksum into the app settings
ynh_store_file_checksum "$final_path/.htconfig.php"

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_print_info "Upgrading logrotate configuration..."

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_print_info "Add Fail2Ban..."
ynh_add_fail2ban_config "$final_path/php.log" "^.*auth\.php.*failed login attempt.*from IP <HOST>.*$" 5

# Set cron job
ynh_print_info "Setting up cron job..."
ynh_replace_string  "YNH_WWW_PATH" "$final_path" ../conf/poller-cron
ynh_replace_string "__USER__" "$app"  ../conf/poller-cron
sudo cp ../conf/poller-cron /etc/cron.d/$app

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_print_info "Upgrading dependencies..."

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CHECK VERSION FOR SPECIFIC MYSQL UPDATE
#=================================================

# Check version and if this version was a fresh install push mysq query
if [ -z "$last_update" ] && [ "$version" == "3.8.4" ]; then
	ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_name" < "../conf/sql/385.sql"
fi

#=================================================
# SETUP SSOWAT
#=================================================
# As Hubzilla is social network and have its own permission there is no need to keep Hubzilla behind SSO
ynh_print_info "Configuring SSOwat..."
ynh_app_setting_set $app skipped_uris "/"

#=================================================
# RELOAD NGINX
#=================================================
ynh_print_info "Reloading nginx web server..."

systemctl reload nginx

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

ynh_print_info "Upgrade of $app completed"