package middleware

import (
	"log"
	"net/http"
	"runtime/debug"

	"github.com/gin-gonic/gin"
)

// Recover panic 恢复中间件，捕获 panic 并返回 500 JSON，同时记录请求 ID 和堆栈
func Recover() gin.HandlerFunc {
	return func(c *gin.Context) {
		defer func() {
			if r := recover(); r != nil {
				rid := GetRequestID(c)
				log.Printf("[ERROR] req_id=%s | panic recovered: %v\n%s", rid, r, debug.Stack())
				c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{
					"code":       1,
					"message":    "服务器内部错误",
					"request_id": rid,
					"data":       nil,
				})
			}
		}()
		c.Next()
	}
}