#!/usr/bin/env bash
# Boot veilor-os ISO in KVM/QEMU under UEFI.
# Usage:
#   ./test/run-vm.sh              # boots latest ISO from build/out
#   ./test/run-vm.sh path/to.iso  # specific ISO
#   SECBOOT=1 ./test/run-vm.sh    # use OVMF Secure Boot firmware
#   FRESH=1 ./test/run-vm.sh      # wipe disk + nvram, re-install from scratch

set -euo pipefail

REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
TEST_DIR="$REPO_ROOT/test"
DISK="$TEST_DIR/veilor-vm.qcow2"
NVRAM="$TEST_DIR/veilor-vm.nvram"

ISO="${1:-$(ls -t "$REPO_ROOT"/build/out/*.iso 2>/dev/null | head -1)}"
[[ -n ${ISO:-} && -f $ISO ]] || { echo "[ERR] No ISO found. Build first: ./build/build-iso.sh"; exit 1; }

# OVMF firmware selection
if [[ "${SECBOOT:-0}" == "1" ]]; then
    OVMF_CODE=/usr/share/edk2/ovmf/OVMF_CODE.secboot.fd
    OVMF_VARS_SRC=/usr/share/edk2/ovmf/OVMF_VARS.secboot.fd
    NVRAM="$TEST_DIR/veilor-vm.nvram.secboot"
else
    OVMF_CODE=/usr/share/edk2/ovmf/OVMF_CODE.fd
    OVMF_VARS_SRC=/usr/share/edk2/ovmf/OVMF_VARS.fd
fi

# Reset on FRESH=1
if [[ "${FRESH:-0}" == "1" ]]; then
    rm -f "$DISK" "$NVRAM"
fi

# Provision disk + per-VM nvram once
[[ -f $DISK ]]  || qemu-img create -f qcow2 "$DISK" 40G
[[ -f $NVRAM ]] || cp "$OVMF_VARS_SRC" "$NVRAM"

echo "════════════════════════════════════════════════════════"
echo "  veilor-os :: VM test"
echo "  ISO   : $ISO"
echo "  Disk  : $DISK"
echo "  NVRAM : $NVRAM"
echo "  Mode  : ${SECBOOT:+secboot}${SECBOOT:-stock UEFI}"
echo "════════════════════════════════════════════════════════"

exec qemu-system-x86_64 \
    -name veilor-os \
    -enable-kvm \
    -cpu host \
    -smp 4 \
    -m 4096 \
    -machine q35,smm=on \
    -global driver=cfi.pflash01,property=secure,value=on \
    -drive if=pflash,format=raw,readonly=on,file="$OVMF_CODE" \
    -drive if=pflash,format=raw,file="$NVRAM" \
    -drive file="$DISK",if=virtio,format=qcow2,cache=writeback \
    -cdrom "$ISO" \
    -boot menu=on,splash-time=2000 \
    -netdev user,id=net0,hostfwd=tcp::2222-:22 \
    -device virtio-net-pci,netdev=net0 \
    -device virtio-rng-pci \
    -vga virtio \
    -display gtk,gl=on \
    -audiodev pa,id=snd0 \
    -device intel-hda \
    -device hda-output,audiodev=snd0