#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# LOAD SETTINGS
#=================================================

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
path_url=$(ynh_app_setting_get $app path)
admin=$(ynh_app_setting_get $app admin)
is_public=$(ynh_app_setting_get $app is_public)
final_path=$(ynh_app_setting_get $app final_path)
db_pwd=$(ynh_app_setting_get $app mysqlpwd)
db_name=$(ynh_app_setting_get $app db_name)
overwrite_nginx=$(ynh_app_setting_get $app overwrite_nginx)
overwrite_phpfpm=$(ynh_app_setting_get $app overwrite_phpfpm)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

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

# 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

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

# If is_public doesn't exist, create it
if [ -z "$is_public" ]; then
	public_check=$(ynh_app_setting_get $app skipped_uris)
	# If skipped_uris is empty, that was a public installation.
	if [ -z "$public_check" ]; then
		is_public=1
	else
		is_public=0
	fi
	ynh_app_setting_set $app is_public $is_public
else
	# Fix is_public as a boolean
	if [ "$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
fi

# If overwrite_nginx doesn't exist, create it
if [ -z "$overwrite_nginx" ]; then
	overwrite_nginx=1
	ynh_app_setting_set $app overwrite_nginx $overwrite_nginx
fi

# If overwrite_phpfpm doesn't exist, create it
if [ -z "$overwrite_phpfpm" ]; then
	overwrite_phpfpm=1
	ynh_app_setting_set $app overwrite_phpfpm $overwrite_phpfpm
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================

# 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)

#=================================================
# ACTIVATE MAINTENANCE MODE
#=================================================

ynh_maintenance_mode_ON

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source "$final_path"
fi

#=================================================
# NGINX CONFIGURATION
#=================================================

# Overwrite the nginx configuration only if it's allowed
if [ $overwrite_nginx -eq 1 ]
then
	# Create a dedicated nginx config
	ynh_add_nginx_config
fi

#=================================================
# CREATE DEDICATED USER
#=================================================

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

#=================================================
# PHP-FPM CONFIGURATION
#=================================================

# Overwrite the php-fpm configuration only if it's allowed
if [ $overwrite_phpfpm -eq 1 ]
then
	# Create a dedicated php-fpm config
	ynh_add_fpm_config
fi

#=================================================
# SPECIFIC UPGRADE
#=================================================
# RETRIEVE SYNCHRONISATION CODE
#=================================================

code_sync=$(mysql -h localhost -u $db_name -p$db_pwd -s $db_name -e 'SELECT value FROM leed_configuration WHERE `key`="synchronisationCode"' | sed -n 1p)

#=================================================
# SETUP CRON FILE FOR SYNCHRONISATION
#=================================================

ynh_replace_string "__ADMIN__" "$admin" ../conf/cron_leed
ynh_replace_string "__DOMAIN__" "$domain" ../conf/cron_leed
ynh_replace_string "__PATH__" "$path_url" ../conf/cron_leed
ynh_replace_string "__CODESYNC__" "$code_sync" ../conf/cron_leed
cp ../conf/cron_leed /etc/cron.d/$app

#=================================================
# SECURING FILES AND DIRECTORIES
#=================================================

# Set permissions on app files
chown -R root: $final_path
# $app need write permissions in plugins, cache and updates
mkdir -p $final_path/cache
chown -R $app $final_path/cache $final_path/plugins $final_path/updates

#=================================================
# UPGRADE WITH CURL
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	# Clear leed cache
	ynh_secure_remove $final_path/cache/*
	# Set the app as temporarily public for curl call
	ynh_app_setting_set $app unprotected_uris "/"
	# Regen SSOwat configuration
	yunohost app ssowatconf
	# Start the upgrade procedure of leed.
	ynh_local_curl "/"
fi

#=================================================
# GENERIC FINALISATION
#=================================================
# UPGRADE FAIL2BAN
#=================================================

# Create a dedicated fail2ban config
ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="PHP message: Leed: wrong login for .* client: <HOST>" --max_retry=5

#=================================================
# SETUP SSOWAT
#=================================================

# Make app private if necessary
if [ $is_public -eq 0 ];
then
	# Remove the public access
	ynh_app_setting_delete $app unprotected_uris
	# Set the action.php script public for the cron task
	ynh_app_setting_set $app skipped_uris "/action.php"
fi

#=================================================
# RELOAD NGINX
#=================================================

ynh_systemd_action --action=reload --service_name=nginx

#=================================================
# DEACTIVE MAINTENANCE MODE
#=================================================

ynh_maintenance_mode_OFF