#!/usr/bin/env bash
# USAGE: ./scripts/get-fedora-coreos
# USAGE: ./scripts/get-fedora-coreos stream version dest
#
set -eou pipefail

STREAM=${1:-"stable"}
VERSION=${2:-"36.20220906.3.2"}
DEST_DIR=${3:-"$PWD/examples/assets"}
DEST=$DEST_DIR/fedora-coreos
BASE_URL=https://builds.coreos.fedoraproject.org/prod/streams/$STREAM/builds/$VERSION/x86_64

# check stream/version exist based on the header response
if ! curl -s -I $BASE_URL/fedora-coreos-$VERSION-metal.x86_64.raw.xz | grep -q -E '^HTTP/[0-9.]+ [23][0-9][0-9]' ; then
  echo "Stream or Version not found"
  exit 1
fi

if [ ! -d "$DEST" ]; then
  echo "Creating directory $DEST"
  mkdir -p $DEST
fi

echo "Downloading Fedora CoreOS $STREAM $VERSION images to $DEST"

# PXE kernel
echo "fedora-coreos-$VERSION-live-kernel-x86_64"
curl -f# $BASE_URL/fedora-coreos-$VERSION-live-kernel-x86_64 -o $DEST/fedora-coreos-$VERSION-live-kernel-x86_64

# PXE initrd
echo "fedora-coreos-$VERSION-live-initramfs.x86_64.img"
curl -f# $BASE_URL/fedora-coreos-$VERSION-live-initramfs.x86_64.img -o $DEST/fedora-coreos-$VERSION-live-initramfs.x86_64.img

# rootfs
echo "fedora-coreos-$VERSION-live-rootfs.x86_64.img"
curl -f# $BASE_URL/fedora-coreos-$VERSION-live-rootfs.x86_64.img -o $DEST/fedora-coreos-$VERSION-live-rootfs.x86_64.img