#!/bin/bash
set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../../.." && pwd)"
IMAGES_DIR="$PROJECT_ROOT/testing/qemu-cluster/images"
VMS_DIR="$PROJECT_ROOT/testing/qemu-cluster/vms"

echo "Starting PhotonCloud QEMU Test Cluster..."
mkdir -p "$VMS_DIR"

BASE_IMAGE="$IMAGES_DIR/base.qcow2"

if [ ! -f "$BASE_IMAGE" ]; then
    echo "Error: Base image not found: $BASE_IMAGE"
    echo "Run ./scripts/create-base-image.sh first"
    exit 1
fi

# VM設定
NODE01_IMAGE="$VMS_DIR/node-01.qcow2"
NODE02_IMAGE="$VMS_DIR/node-02.qcow2"
NODE01_MAC="52:54:00:12:34:01"
NODE02_MAC="52:54:00:12:34:02"

# ベースイメージからVMイメージを作成（COW）
if [ ! -f "$NODE01_IMAGE" ]; then
    echo "Creating node-01 image..."
    qemu-img create -f qcow2 -b "$BASE_IMAGE" -F qcow2 "$NODE01_IMAGE" 10G
fi

if [ ! -f "$NODE02_IMAGE" ]; then
    echo "Creating node-02 image..."
    qemu-img create -f qcow2 -b "$BASE_IMAGE" -F qcow2 "$NODE02_IMAGE" 10G
fi

# VMを起動
echo "Starting node-01..."
qemu-system-x86_64 \
    -enable-kvm \
    -name node-01 \
    -m 2048 \
    -smp 2 \
    -hda "$NODE01_IMAGE" \
    -netdev user,id=net0,hostfwd=tcp::2201-:22,hostfwd=tcp::18080-:18080 \
    -device e1000,netdev=net0,mac="$NODE01_MAC" \
    -nographic \
    -daemonize \
    -pidfile "$VMS_DIR/node-01.pid"

echo "Starting node-02..."
qemu-system-x86_64 \
    -enable-kvm \
    -name node-02 \
    -m 2048 \
    -smp 2 \
    -hda "$NODE02_IMAGE" \
    -netdev user,id=net0,hostfwd=tcp::2202-:22,hostfwd=tcp::18081-:18081 \
    -device e1000,netdev=net0,mac="$NODE02_MAC" \
    -nographic \
    -daemonize \
    -pidfile "$VMS_DIR/node-02.pid"

echo "Cluster started successfully!"
echo ""
echo "Access VMs:"
echo "  node-01: ssh -p 2201 photon@localhost"
echo "  node-02: ssh -p 2202 photon@localhost"
echo ""
echo "Stop cluster:"
echo "  ./scripts/stop-cluster.sh"