#!/bin/bash

# Create a dedicated nginx config
#
# usage: ynh_add_nginx_config "list of others variables to replace"
#
# | arg: list - (Optional) list of others variables to replace separated by spaces. For example : 'path_2 port_2 ...'
#
# This will use a template in ../conf/nginx.conf
#   __PATH__      by  $path_url
#   __DOMAIN__    by  $domain
#   __PORT__      by  $port
#   __NAME__      by  $app
#   __FINALPATH__ by  $final_path
#
#  And dynamic variables (from the last example) :
#   __PATH_2__    by $path_2
#   __PORT_2__    by $port_2
#
# Requires YunoHost version 2.7.2 or higher.
ynh_add_nginx_config () {
	finalnginxconf="/etc/nginx/conf.d/$domain.d/$app.conf"
	local others_var=${1:-}
	ynh_backup_if_checksum_is_different --file="$finalnginxconf"
	sudo cp ../conf/nginx.conf "$finalnginxconf"

	# To avoid a break by set -u, use a void substitution ${var:-}. If the variable is not set, it's simply set with an empty variable.
	# Substitute in a nginx config file only if the variable is not empty
	if test -n "${path_url:-}"; then
		# path_url_slash_less is path_url, or a blank value if path_url is only '/'
		local path_url_slash_less=${path_url%/}
		ynh_replace_string --match_string="__PATH__/" --replace_string="$path_url_slash_less/" --target_file="$finalnginxconf"
		ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$finalnginxconf"
	fi
	if test -n "${domain:-}"; then
		ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$finalnginxconf"
	fi
	if test -n "${port:-}"; then
		ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$finalnginxconf"
	fi
	if test -n "${app:-}"; then
		ynh_replace_string --match_string="__NAME__" --replace_string="$app" --target_file="$finalnginxconf"
	fi
	if test -n "${final_path:-}"; then
		ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="$finalnginxconf"
	fi

	# Replace all other variable given as arguments
	for var_to_replace in $others_var
	do
		# ${var_to_replace^^} make the content of the variable on upper-cases
		# ${!var_to_replace} get the content of the variable named $var_to_replace 
		ynh_replace_string --match_string="__${var_to_replace^^}__" --replace_string="${!var_to_replace}" --target_file="$finalnginxconf"
	done
	
	if [ "${path_url:-}" != "/" ]
	then
		ynh_replace_string --match_string="^#sub_path_only" --replace_string="" --target_file="$finalnginxconf"
	else
		ynh_replace_string --match_string="^#root_path_only" --replace_string="" --target_file="$finalnginxconf"
	fi

	ynh_store_file_checksum --file="$finalnginxconf"

	ynh_systemd_action --service_name=nginx --action=reload
}

# Remove the dedicated nginx config
#
# usage: ynh_remove_nginx_config
#
# Requires YunoHost version 2.7.2 or higher.
ynh_remove_nginx_config () {
	ynh_secure_remove --file="/etc/nginx/conf.d/$domain.d/$app.conf"
	ynh_systemd_action --service_name=nginx --action=reload
}