package middleware

import (
	"fmt"
	"github.com/gogf/gf/v2/errors/gcode"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/net/ghttp"
	"net/http"
	"reflect"
)

type DefaultHandlerResponse struct {
	Code    int         `json:"code" dc:"响应状态码"`
	Message string      `json:"msg" dc:"响应信息"`
	Data    interface{} `json:"data" dc:"响应数据"`
}

func Res(r *ghttp.Request) {
	r.Middleware.Next()

	// There's custom buffer content, it then exits current handler.
	if r.Response.BufferLength() > 0 {
		return
	}

	var (
		msg  string
		err  = r.GetError()
		res  = r.GetHandlerResponse()
		code = gerror.Code(err)
	)
	if err != nil {
		if code == gcode.CodeNil {
			code = gcode.CodeInternalError
		}
		msg = err.Error()
	} else if r.Response.Status > 0 && r.Response.Status != http.StatusOK {
		msg = http.StatusText(r.Response.Status)
		switch r.Response.Status {
		case http.StatusNotFound:
			code = gcode.CodeNotFound
		case http.StatusForbidden:
			code = gcode.CodeNotAuthorized
		default:
			code = gcode.CodeUnknown
		}
	} else {
		code = gcode.CodeOK
	}
	fmt.Println("res_type: ", reflect.TypeOf(res))
	fmt.Println("res_data: ", res)
	r.Response.WriteJsonExit(DefaultHandlerResponse{
		Code:    code.Code(),
		Message: msg,
		Data:    res,
	})
}