package response

import (
	"net/http"

	"mengstack/internal/kernel/errors"

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

type Response struct {
	Code    int         `json:"code"`
	Message string      `json:"message"`
	Data    interface{} `json:"data,omitempty"`
	TraceID string      `json:"trace_id"`
}

func Success(c *gin.Context, data interface{}) {
	c.JSON(http.StatusOK, Response{
		Code:    0,
		Message: "success",
		Data:    data,
		TraceID: c.GetString("trace_id"),
	})
}

func Fail(c *gin.Context, err *errors.AppError) {
	c.JSON(err.HTTPCode, Response{
		Code:    -1,
		Message: err.Message,
		TraceID: c.GetString("trace_id"),
	})
}

func FailWithMessage(c *gin.Context, err *errors.AppError, message string) {
	c.JSON(err.HTTPCode, Response{
		Code:    -1,
		Message: message,
		TraceID: c.GetString("trace_id"),
	})
}

func HandleError(c *gin.Context, err error) {
	if appErr, ok := errors.IsAppError(err); ok {
		Fail(c, appErr)
		return
	}
	Fail(c, errors.ErrInternal)
}

func NewBadRequest(msg string) *errors.AppError {
	return errors.New("BAD_REQUEST", msg, http.StatusBadRequest)
}