#!/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 $app path)
is_public=$(ynh_app_setting_get $app is_public)
final_path=$(ynh_app_setting_get $app final_path)
lang=$(ynh_app_setting_get $app lang)
db_name=$(ynh_app_setting_get $app db_name)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_print_info "Ensuring downward compatibility..."

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

# 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

# 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

#=================================================
# 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

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

# Normalize the URL path syntax
path_url=$(ynh_normalize_url_path $path_url)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# 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/app"

#=================================================
# 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

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

# Create a dedicated php-fpm config
ynh_add_fpm_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPDATE SSO AND PGP
#=================================================
ynh_print_info "Upgrading rainloop configuration..."

# update SSO
cp ../sources/sso/sso.php "$final_path/index.php"
ynh_replace_string "__DOMAIN__" "$domain" "$final_path/index.php"
ynh_replace_string "__ALIASTOCHANGE__" "$final_path" "$final_path/index.php"
if [ $path_url = "/" ]; then
	ynh_replace_string "__ROOTTOCHANGE__" "" "$final_path/index.php"
else
	ynh_replace_string "__ROOTTOCHANGE__" "$path_url" "$final_path/index.php"
fi

# Install PGPback by chtixof to allow users to backup/restore their PGP private keys on the server
cp -rf ../sources/pgpback "$final_path/"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

# Set permissions on app files
chown -R $app: $final_path
find $final_path/. -type d -exec chmod 755 {} \;
find $final_path/. -type f -exec chmod 644 {} \;

#=================================================
# SETUP SSOWAT
#=================================================
ynh_print_info "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 unprotected_uris "/"
fi

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

systemctl reload nginx

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

ynh_print_info "Upgrade of $app completed"