#!/bin/bash

function checkbinaries {
 for i in wget curl qemu-system-x86_64 qemu-img kvm; do
    type -P $i 1>/dev/null; val="$?"
    [ "$val" != 0 ] && echo "$i not found, exiting" && exit 1
 done
}

function downloadiso {
 version=$(curl -s http://distro.ibiblio.org/tinycorelinux/ | grep 'The latest version' | cut -d ">" -f3) #example ->  8.2
 version="${version%</b}"
 mainversion=${version%%.*} # example -> 8

 echo -e "Downloading file: CorePure64-current.iso\n"
 wget -q --show-progress http://distro.ibiblio.org/tinycorelinux/"$mainversion".x/x86_64/release/CorePure64-current.iso

 name="CorePure64-$version.iso.md5.txt"
 echo -e "\nCurrent version of 'CorePure64-current.iso': $version"

 md5good="$(curl -s http://distro.ibiblio.org/tinycorelinux/"$mainversion".x/x86_64/release/"$name" | cut -d " " -f1)"
 echo "Good md5 hash of file 'CorePure64-current.iso': $md5good"

 md5check="$(md5sum CorePure64-current.iso | cut -d " " -f1)"
 echo -e "Computed md5 hash of file 'CorePure64-current.iso': $md5check\n"

 if [ "$md5good" == "$md5check" ]; then
    echo "'CorePure64-current.iso' downloaded successfully"
 else   
    echo "'CorePure64-current.iso' isn't downloaded successfully, exiting" && exit 1
 fi 
}

function createimage {
 imagename=CorePure64-"$version".vmdk
 qemu-img create -f vmdk  "$imagename" 1G 1>/dev/null; var_img="$?"
 if [ "$var_img" == 0 ]; then
    echo "'$imagename' created successfully"
 else 
    echo "Can't create '$imagename', exiting" && exit 1
 fi
 qemu-system-x86_64 -boot c -cdrom CorePure64-current.iso -hda "$imagename" -m 1G -enable-kvm 1>/dev/null
}

clear
checkbinaries
downloadiso
createimage "$version"
exit 0