#!/bin/bash

# 启动etcd服务

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BACKEND_DIR="$(dirname "$SCRIPT_DIR")"

# 检测操作系统
OS_TYPE="$(uname -s)"
case "$OS_TYPE" in
    Darwin*) PLATFORM="darwin" ;;
    Linux*) PLATFORM="linux" ;;
    CYGWIN*|MINGW*|MSYS*) PLATFORM="windows" ;;
    *) echo "不支持的操作系统: $OS_TYPE"; exit 1 ;;
esac

# 根据平台选择 etcd 二进制文件
ETCD_BIN="$BACKEND_DIR/bin/$PLATFORM/etcd"
if [ "$PLATFORM" = "windows" ]; then
    ETCD_BIN="$BACKEND_DIR/bin/$PLATFORM/etcd.exe"
fi

ETCD_DATA_DIR="$BACKEND_DIR/data/etcd"
ETCD_LOG="$BACKEND_DIR/logs/etcd.log"
ETCD_PID="$BACKEND_DIR/logs/etcd.pid"

# 检查 etcd 是否已安装
if [ ! -f "$ETCD_BIN" ]; then
    echo "错误: 找不到 $PLATFORM 平台的 etcd 二进制文件"
    echo "路径: $ETCD_BIN"
    echo ""
    echo "请下载对应平台的 etcd 并放置到正确位置："
    echo "  macOS:   backend/bin/darwin/etcd"
    echo "  Linux:   backend/bin/linux/etcd"
    echo "  Windows: backend/bin/windows/etcd.exe"
    echo ""
    echo "下载地址: https://github.com/etcd-io/etcd/releases/tag/v3.6.10"
    exit 1
fi

# 检查etcd是否已运行
if [ -f "$ETCD_PID" ]; then
    PID=$(cat "$ETCD_PID")
    if ps -p "$PID" > /dev/null 2>&1; then
        echo "✓ etcd 已在运行 (PID: $PID)"
        exit 0
    fi
fi

# 创建数据目录
mkdir -p "$ETCD_DATA_DIR"
mkdir -p "$(dirname "$ETCD_LOG")"

echo "启动 etcd..."

# 启动etcd
nohup "$ETCD_BIN" \
    --name cloudpods-etcd \
    --data-dir "$ETCD_DATA_DIR" \
    --listen-client-urls http://localhost:2379 \
    --advertise-client-urls http://localhost:2379 \
    --listen-peer-urls http://localhost:2380 \
    --initial-advertise-peer-urls http://localhost:2380 \
    --initial-cluster cloudpods-etcd=http://localhost:2380 \
    > "$ETCD_LOG" 2>&1 &

PID=$!
echo $PID > "$ETCD_PID"

# 等待etcd启动
sleep 2

if ps -p "$PID" > /dev/null 2>&1; then
    echo "✓ etcd 启动成功 (PID: $PID)"
    echo "  - Client URL: http://localhost:2379"
    echo "  - Data Dir: $ETCD_DATA_DIR"
else
    echo "✗ etcd 启动失败"
    tail -10 "$ETCD_LOG"
    exit 1
fi