name: CD

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:

env:
  DEPLOY_DIR: /opt/syscall_monitor
  HEALTH_URL: http://127.0.0.1:5000

jobs:
  deploy:
    runs-on: self-hosted
    steps:
      - name: 检出代码
        uses: https://gitea.com/actions/checkout@v4

      - name: 显示目标主机信息
        run: |
          echo "部署主机: $(hostname)"
          echo "执行用户: $(id -un) ($(id -u))"
          echo "触发引用: ${{ gitea.ref }}"
          echo "部署目录: $DEPLOY_DIR"

      - name: 停止旧实例（若存在）
        run: |
          if [ -x "$DEPLOY_DIR/stop.sh" ]; then
            sudo -n "$DEPLOY_DIR/stop.sh" || true
          else
            echo "$DEPLOY_DIR 下未发现旧实例，跳过停止步骤"
          fi

      - name: 同步代码到部署目录
        run: |
          sudo -n /usr/bin/rsync -a --delete \
            --exclude='.git' \
            --exclude='.venv' \
            --exclude='.venv-ci' \
            --exclude='logs' \
            --exclude='.pid' \
            ./ "$DEPLOY_DIR/"
          sudo -n chmod +x "$DEPLOY_DIR/setup.sh" "$DEPLOY_DIR/run.sh" "$DEPLOY_DIR/stop.sh"

      - name: 安装 venv 与依赖
        run: sudo -n "$DEPLOY_DIR/setup.sh"

      - name: 启动服务
        run: sudo -n "$DEPLOY_DIR/run.sh"

      - name: 校验进程存活
        run: |
          sleep 5
          PID_FILE="$DEPLOY_DIR/.pid"
          if [ ! -f "$PID_FILE" ]; then
            echo "未找到 pid 文件: $PID_FILE" >&2
            sudo -n tail -n 50 "$DEPLOY_DIR/logs/app.log" >&2 || true
            exit 1
          fi
          PID=$(cat "$PID_FILE")
          echo "pid=$PID"
          for i in 1 2 3; do
            if [ -d "/proc/$PID" ]; then
              echo "服务运行中，pid=$PID（第 $i 次检查通过）"
              exit 0
            fi
            echo "第 $i 次检查：pid $PID 尚未存活，重试中..."
            sleep 2
          done
          echo "重试 3 次后 pid $PID 仍未存活" >&2
          sudo -n tail -n 50 "$DEPLOY_DIR/logs/app.log" >&2 || true
          exit 1

      - name: HTTP 健康检查
        run: |
          for i in 1 2 3 4 5 6 7 8 9 10; do
            if curl -fsS -o /dev/null "$HEALTH_URL"; then
              echo "第 $i 次健康检查通过"
              exit 0
            fi
            echo "第 $i 次健康检查失败，重试中..."
            sleep 2
          done
          echo "健康检查失败：$HEALTH_URL 不可达" >&2
          sudo -n tail -n 80 "$DEPLOY_DIR/logs/app.log" >&2 || true
          exit 1

      - name: 输出启动日志
        if: always()
        run: sudo -n tail -n 30 "$DEPLOY_DIR/logs/app.log" || true