#!/bin/bash

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

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

#=================================================
# 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)
is_public=$(ynh_app_setting_get  --app=$app --key=is_public)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

# Fix is_public as a boolean value
if [ "$is_public" = "Yes" ]; then
	ynh_app_setting_set --app=$app --key=is_public --value=1
	is_public=1
elif [ "$is_public" = "No" ]; then
	ynh_app_setting_set --app=$app --key=is_public --value=0
	is_public=0
fi

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


#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="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



#=================================================
# CHECK THE PATH
#=================================================

# Normalize the URL path syntax
# N.B. : this is for app installations before YunoHost 2.7
# where this value might be something like /foo/ or foo/
# instead of /foo ....
# If nobody installed your app before 2.7, then you may
# safely remove this line
path_url=$(ynh_normalize_url_path --path_url=$path_url)

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --time --weight=1

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source --dest_dir="$final_path"
fi

#=================================================
# REMOVE APP MAIN DIR
#=================================================

# Create a temporary directory
tmpdir="$(ynh_smart_mktemp 600)"
# Backup the config file in the temp dir
cp -a "$final_path/data" "$tmpdir/"
# Backup the theme file in the temp dir
cp -a "$final_path/tpl" "$tmpdir/"

# Remove the app directory securely
ynh_secure_remove "$final_path"

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Upgrading source files..."
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path"
cp -a "$tmpdir/data" "${final_path}/"
cp -a "$tmpdir/tpl" "${final_path}/"
ynh_secure_remove "$tmpdir"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading nginx web server configuration..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..."

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..."

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


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

# Create a dedicated php-fpm config
ynh_add_fpm_config --usage=low --footprint=low --package="$extra_php_dependencies"

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..."

# Use logrotate to manage app-specific logfile(s)
# Temporary fix for .txt log file and ynh_use_logrotate
if [ -d "$final_path/data/log.txt" ]
then
    ynh_secure_remove "$final_path/data/log.txt"
    touch "$final_path/data/log.txt"
fi
ynh_use_logrotate --non-append

#=================================================
# UPGRADE FAIL2BAN
#=================================================
ynh_script_progression --message="Reconfiguring fail2ban..."

# Create a dedicated fail2ban config
ynh_add_fail2ban_config --logpath="$final_path/data/log.txt" --failregex="\s-\s<HOST>\s-\sLogin failed for user.*$"

# Set right permissions
chown -R $app: $final_path

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Upgrading SSOwat configuration..."

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway
	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
fi
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..."

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Upgrade of $app completed"