#!/bin/bash

# Configuration
ISO_PATH="${1:-/home/n0va/.local/share/iridium-installer-vm/Fedora.iso}"
DISK_PATH="${2:-/home/n0va/.local/share/iridium-installer-vm/test-disk.qcow2}"
SNAPSHOT_NAME="clean-state"

if [ ! -f "$ISO_PATH" ]; then
    echo "Error: ISO not found at $ISO_PATH"
    exit 1
fi

if [ ! -f "$DISK_PATH" ]; then
    echo "Error: Disk image not found at $DISK_PATH"
    exit 1
fi

echo "Starting Iridium VM with BIOS (Legacy) support..."
echo "ISO: $ISO_PATH"
echo "Disk: $DISK_PATH"

# Check if snapshot exists
LOADVM_ARG=""
if qemu-img info "$DISK_PATH" | grep -q " $SNAPSHOT_NAME$"; then
    echo "Found snapshot '$SNAPSHOT_NAME', loading..."
    LOADVM_ARG="-loadvm $SNAPSHOT_NAME"
else
    echo "Snapshot '$SNAPSHOT_NAME' not found. Starting from fresh disk state."
fi

# QEMU Command with BIOS
# Note: For snapshots to work reliably, all writable disks must be qcow2.
# The ISO is raw but readonly=on, which is compatible.
qemu-system-x86_64 \
    -enable-kvm \
    -m 8G \
    -smp 2 \
    -cpu host \
    -drive file="$DISK_PATH",format=qcow2,if=virtio \
    -device virtio-scsi-pci,id=scsi0 \
    -drive file="$ISO_PATH",format=raw,if=none,id=cdrom,readonly=on \
    -device scsi-cd,bus=scsi0.0,drive=cdrom \
    -boot order=d \
    -netdev user,id=net0 \
    -device virtio-net-pci,netdev=net0 \
    -vga virtio \
    -display gtk,gl=on \
    -monitor unix:$HOME/.local/share/iridium-installer-vm/monitor.sock,server,nowait \
    -name "Iridium Installer Test VM (BIOS)" \
    $LOADVM_ARG