#!/bin/bash
set -x

source $HOME/.cargo/env
source $(dirname "$0")/test-util.sh

WORKLOADS_DIR="$HOME/workloads"
mkdir -p "$WORKLOADS_DIR"

process_common_args "$@"

# For now these values are default for kvm
test_features=""

if [ "$hypervisor" = "mshv" ] ;  then
    test_features="--features mshv"
fi

cp scripts/sha1sums-x86_64 $WORKLOADS_DIR

FW_URL=$(curl --silent https://api.github.com/repos/cloud-hypervisor/rust-hypervisor-firmware/releases/latest | grep "browser_download_url" | grep -o 'https://.*[^ "]')
FW="$WORKLOADS_DIR/hypervisor-fw"
if [ ! -f "$FW" ]; then
    pushd $WORKLOADS_DIR
    time wget --quiet $FW_URL || exit 1
    popd
fi

OVMF_FW_URL=$(curl --silent https://api.github.com/repos/cloud-hypervisor/edk2/releases/latest | grep "browser_download_url" | grep -o 'https://.*[^ "]')
OVMF_FW="$WORKLOADS_DIR/CLOUDHV.fd"
if [ ! -f "$OVMF_FW" ]; then
    pushd $WORKLOADS_DIR
    time wget --quiet $OVMF_FW_URL || exit 1
    popd
fi

FOCAL_OS_IMAGE_NAME="focal-server-cloudimg-amd64-custom-20210609-0.qcow2"
FOCAL_OS_IMAGE_URL="https://cloud-hypervisor.azureedge.net/$FOCAL_OS_IMAGE_NAME"
FOCAL_OS_IMAGE="$WORKLOADS_DIR/$FOCAL_OS_IMAGE_NAME"
if [ ! -f "$FOCAL_OS_IMAGE" ]; then
    pushd $WORKLOADS_DIR
    time wget --quiet $FOCAL_OS_IMAGE_URL || exit 1
    popd
fi

FOCAL_OS_RAW_IMAGE_NAME="focal-server-cloudimg-amd64-custom-20210609-0.raw"
FOCAL_OS_RAW_IMAGE="$WORKLOADS_DIR/$FOCAL_OS_RAW_IMAGE_NAME"
if [ ! -f "$FOCAL_OS_RAW_IMAGE" ]; then
    pushd $WORKLOADS_DIR
    time qemu-img convert -p -f qcow2 -O raw $FOCAL_OS_IMAGE_NAME $FOCAL_OS_RAW_IMAGE_NAME || exit 1
    popd
fi

FOCAL_OS_QCOW_BACKING_FILE_IMAGE_NAME="focal-server-cloudimg-amd64-custom-20210609-0-backing.qcow2"
FOCAL_OS_QCOW_BACKING_FILE_IMAGE="$WORKLOADS_DIR/$FOCAL_OS_QCOW_BACKING_FILE_IMAGE_NAME"
if [ ! -f "$FOCAL_OS_QCOW_BACKING_FILE_IMAGE" ]; then
    pushd $WORKLOADS_DIR
    time qemu-img create -f qcow2 -b $FOCAL_OS_IMAGE -F qcow2 $FOCAL_OS_QCOW_BACKING_FILE_IMAGE_NAME
    popd
fi

JAMMY_OS_IMAGE_NAME="jammy-server-cloudimg-amd64-custom-20230119-0.qcow2"
JAMMY_OS_IMAGE_URL="https://cloud-hypervisor.azureedge.net/$JAMMY_OS_IMAGE_NAME"
JAMMY_OS_IMAGE="$WORKLOADS_DIR/$JAMMY_OS_IMAGE_NAME"
if [ ! -f "$JAMMY_OS_IMAGE" ]; then
    pushd $WORKLOADS_DIR
    time wget --quiet $JAMMY_OS_IMAGE_URL || exit 1
    popd
fi

JAMMY_OS_RAW_IMAGE_NAME="jammy-server-cloudimg-amd64-custom-20230119-0.raw"
JAMMY_OS_RAW_IMAGE="$WORKLOADS_DIR/$JAMMY_OS_RAW_IMAGE_NAME"
if [ ! -f "$JAMMY_OS_RAW_IMAGE" ]; then
    pushd $WORKLOADS_DIR
    time qemu-img convert -p -f qcow2 -O raw $JAMMY_OS_IMAGE_NAME $JAMMY_OS_RAW_IMAGE_NAME || exit 1
    popd
fi

ALPINE_MINIROOTFS_URL="http://dl-cdn.alpinelinux.org/alpine/v3.11/releases/x86_64/alpine-minirootfs-3.11.3-x86_64.tar.gz"
ALPINE_MINIROOTFS_TARBALL="$WORKLOADS_DIR/alpine-minirootfs-x86_64.tar.gz"
if [ ! -f "$ALPINE_MINIROOTFS_TARBALL" ]; then
    pushd $WORKLOADS_DIR
    time wget --quiet $ALPINE_MINIROOTFS_URL -O $ALPINE_MINIROOTFS_TARBALL || exit 1
    popd
fi

ALPINE_INITRAMFS_IMAGE="$WORKLOADS_DIR/alpine_initramfs.img"
if [ ! -f "$ALPINE_INITRAMFS_IMAGE" ]; then
    pushd $WORKLOADS_DIR
    mkdir alpine-minirootfs
    tar xf "$ALPINE_MINIROOTFS_TARBALL" -C alpine-minirootfs
    cat > alpine-minirootfs/init <<-EOF
		#! /bin/sh
		mount -t devtmpfs dev /dev
		echo \$TEST_STRING > /dev/console
		poweroff -f
	EOF
    chmod +x alpine-minirootfs/init
    cd alpine-minirootfs
    find . -print0 |
        cpio --null --create --verbose --owner root:root --format=newc > "$ALPINE_INITRAMFS_IMAGE"
    popd
fi

pushd $WORKLOADS_DIR
sha1sum sha1sums-x86_64 --check
if [ $? -ne 0 ]; then
    echo "sha1sum validation of images failed, remove invalid images to fix the issue."
    exit 1
fi
popd

# Build custom kernel based on virtio-pmem and virtio-fs upstream patches
VMLINUX_IMAGE="$WORKLOADS_DIR/vmlinux"
if [ ! -f "$VMLINUX_IMAGE" ]; then
    build_custom_linux
fi

VIRTIOFSD="$WORKLOADS_DIR/virtiofsd"
VIRTIOFSD_DIR="virtiofsd_build"
if [ ! -f "$VIRTIOFSD" ]; then
    pushd $WORKLOADS_DIR
    git clone "https://gitlab.com/virtio-fs/virtiofsd.git" $VIRTIOFSD_DIR
    pushd $VIRTIOFSD_DIR
    git checkout v1.8.0
    time cargo build --release
    cp target/release/virtiofsd $VIRTIOFSD || exit 1
    popd
    rm -rf $VIRTIOFSD_DIR
    popd
fi


BLK_IMAGE="$WORKLOADS_DIR/blk.img"
MNT_DIR="mount_image"
if [ ! -f "$BLK_IMAGE" ]; then
   pushd $WORKLOADS_DIR
   fallocate -l 16M $BLK_IMAGE
   mkfs.ext4 -j $BLK_IMAGE
   mkdir $MNT_DIR
   sudo mount -t ext4 $BLK_IMAGE $MNT_DIR
   sudo bash -c "echo bar > $MNT_DIR/foo" || exit 1
   sudo umount $BLK_IMAGE
   rm -r $MNT_DIR
   popd
fi

SHARED_DIR="$WORKLOADS_DIR/shared_dir"
if [ ! -d "$SHARED_DIR" ]; then
    mkdir -p $SHARED_DIR
    echo "foo" > "$SHARED_DIR/file1"
    echo "bar" > "$SHARED_DIR/file3" || exit 1
fi

VFIO_DIR="$WORKLOADS_DIR/vfio"
VFIO_DISK_IMAGE="$WORKLOADS_DIR/vfio.img"
rm -rf $VFIO_DIR $VFIO_DISK_IMAGE
mkdir -p $VFIO_DIR
cp $FOCAL_OS_RAW_IMAGE $VFIO_DIR
cp $FW $VFIO_DIR
cp $VMLINUX_IMAGE $VFIO_DIR || exit 1

cargo build --features mshv --all  --release --target $BUILD_TARGET

# We always copy a fresh version of our binary for our L2 guest.
cp target/$BUILD_TARGET/release/cloud-hypervisor $VFIO_DIR
cp target/$BUILD_TARGET/release/ch-remote $VFIO_DIR

# Enable KSM with some reasonable parameters so that it won't take too long
# for the memory to be merged between two processes.
sudo bash -c "echo 1000000 > /sys/kernel/mm/ksm/pages_to_scan"
sudo bash -c "echo 10 > /sys/kernel/mm/ksm/sleep_millisecs"
sudo bash -c "echo 1 > /sys/kernel/mm/ksm/run"

# Both test_vfio, ovs-dpdk and vDPA tests rely on hugepages
HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{print $2}'`
PAGE_NUM=`echo $((12288 * 1024 / $HUGEPAGESIZE))`
echo $PAGE_NUM | sudo tee /proc/sys/vm/nr_hugepages
sudo chmod a+rwX /dev/hugepages

# Update max locked memory to 'unlimited' to avoid issues with vDPA
ulimit -l unlimited

# Set number of open descriptors high enough for VFIO tests to run
ulimit -n 4096

export RUST_BACKTRACE=1
time cargo test $test_features "common_parallel::$test_filter" -- ${test_binary_args[*]}
RES=$?

# Run some tests in sequence since the result could be affected by other tests
# running in parallel.
if [ $RES -eq 0 ]; then
    export RUST_BACKTRACE=1
    time cargo test $test_features "common_sequential::$test_filter" -- --test-threads=1 ${test_binary_args[*]}
    RES=$?
fi

# Run tests on dbus_api
if [ $RES -eq 0 ]; then
    cargo build --features "mshv,dbus_api" --all  --release --target $BUILD_TARGET
    export RUST_BACKTRACE=1
    # integration tests now do not reply on build feature "dbus_api"
    time cargo test $test_features "dbus_api::$test_filter" -- ${test_binary_args[*]}
    RES=$?
fi

exit $RES