#!/bin/bash

#=================================================
# COMMON VARIABLES
#=================================================

YNH_PHP_VERSION="7.3"

pkg_dependencies="php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-session php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-ldap php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-tidy php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-zip php${YNH_PHP_VERSION}-gd"

YNH_COMPOSER_VERSION=2.1.1

#=================================================
# PERSONAL HELPERS
#=================================================

#=================================================
# EXPERIMENTAL HELPERS
#=================================================

#=================================================
# FUTURE OFFICIAL HELPERS
#=================================================

#=================================================
# REDIS HELPERS
#=================================================

# get the first available redis database
#
# usage: ynh_redis_get_free_db
# | returns: the database number to use
ynh_redis_get_free_db() {
	local result max db
	result="$(redis-cli INFO keyspace)"

	# get the num
	max=$(cat /etc/redis/redis.conf | grep ^databases | grep -Eow "[0-9]+")

	db=0
	# default Debian setting is 15 databases
	for i in $(seq 0 "$max")
	do
	 	if ! echo "$result" | grep -q "db$i"
	 	then
			db=$i
	 		break 1
 		fi
 		db=-1
	done

	test "$db" -eq -1 && ynh_die --message="No available Redis databases..."

	echo "$db"
}

# Create a master password and set up global settings
# Please always call this script in install and restore scripts
#
# usage: ynh_redis_remove_db database
# | arg: database - the database to erase
ynh_redis_remove_db() {
	local db=$1
	redis-cli -n "$db" flushall
}