#!/bin/bash
#
# gmp-service 一键部署脚本
# 用法: ./deploy/deploy.sh
#
# 它会: 构建 -> 停止旧服务 -> 替换jar -> 启动新服务

set -e

PROJECT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
SERVICE_NAME="gmp-service"
JAR_SRC="$PROJECT_DIR/target/gmp-service.jar"
JAR_DST="/opt/$SERVICE_NAME/gmp-service.jar"
LOG_DIR="/var/log/$SERVICE_NAME"

echo "===== 1. Maven 构建 ====="
cd "$PROJECT_DIR"
mvn clean package -DskipTests

if [ ! -f "$JAR_SRC" ]; then
    echo "构建失败，未生成 JAR 文件"
    exit 1
fi

echo "===== 2. 停止旧服务 ====="
if systemctl is-active --quiet "$SERVICE_NAME"; then
    sudo systemctl stop "$SERVICE_NAME"
    echo "旧服务已停止"
else
    echo "服务未运行，跳过"
fi

echo "===== 3. 部署新 JAR ====="
sudo mkdir -p /opt/$SERVICE_NAME "$LOG_DIR"
sudo cp "$JAR_SRC" "$JAR_DST"
sudo chmod 644 "$JAR_DST"

echo "===== 4. 启动服务 ====="
sudo systemctl daemon-reload
sudo systemctl enable "$SERVICE_NAME"
sudo systemctl start "$SERVICE_NAME"

echo "===== 等待服务启动 ====="
sleep 3

if systemctl is-active --quiet "$SERVICE_NAME"; then
    echo "服务已成功启动!"
    systemctl status "$SERVICE_NAME" --no-pager | head -15
else
    echo "服务启动失败，查看日志: sudo journalctl -u $SERVICE_NAME -n 50 --no-pager"
    exit 1
fi

echo ""
echo "部署完成!"
echo "  服务: $SERVICE_NAME"
echo "  JAR:  $JAR_DST"
echo "  日志: journalctl -u $SERVICE_NAME -f"
echo "  端口: $(grep 'server.port' "$PROJECT_DIR/src/main/resources/application.yml" 2>/dev/null || echo '6666')"