#!/bin/bash

# download latest ISO if not already in /tmp
case $1 in
    alma)
        latest="9"
        if [ ! -f /tmp/alma-${latest}.iso ];then
            wget http://mirror.wdc2.us.leaseweb.net/almalinux/${latest}/isos/x86_64/AlmaLinux-${latest}-latest-x86_64-minimal.iso -O /tmp/alma-${latest}.iso
        fi
        echo "/tmp/alma-${latest}.iso"
        ;;
    archlinux)
        ;&
    *)
        #defaults to arch
        latest=`date -d yesterday +"%Y.%m.01"`
        if [ ! -f /tmp/arch-${latest}.iso ];then
            wget https://mirror.arizona.edu/archlinux/iso/${latest}/archlinux-${latest}-x86_64.iso -O /tmp/arch-${latest}.iso
        fi
        echo "/tmp/arch-${latest}.iso"
        ;;
esac