package rest

import (
	"net/http"

	"github.com/go-chi/render"
	"github.com/pkg/errors"
)

var (
	// UnauthorizedError 未登入
	UnauthorizedError = errors.New("用户未登入")
)

// APIResponse 返回的标准结构
type APIResponse struct {
	Err            error       `json:"-"` // low-level runtime error
	HTTPStatusCode int         `json:"-"` // http response status code
	Code           int         `json:"code"`
	Message        string      `json:"message"`
	RequestId      string      `json:"request_id"`
	Data           interface{} `json:"data"`
}

// Render chi Render 实现
func (res *APIResponse) Render(w http.ResponseWriter, r *http.Request) error {
	statusCode := res.HTTPStatusCode
	if statusCode == 0 {
		statusCode = http.StatusOK
	}

	res.RequestId = RequestIDValue(r.Context())
	render.Status(r, statusCode)

	return nil
}

// UnauthorizedErrRender 未登入返回
func AbortWithUnauthorizedError(err error) render.Renderer {
	return &APIResponse{
		Code:           1401,
		Message:        err.Error(),
		HTTPStatusCode: http.StatusUnauthorized,
	}
}

// AbortWithBadRequestError 错误
func AbortWithBadRequestError(err error) render.Renderer {
	return &APIResponse{
		Code:           1400,
		Message:        err.Error(),
		HTTPStatusCode: http.StatusBadRequest,
	}

}

// AbortWithBadRequestError 错误
func APIError(err error) render.Renderer {
	return &APIResponse{
		Code:           1400,
		Message:        err.Error(),
		HTTPStatusCode: http.StatusBadRequest,
	}

}

// AbortWithWithForbiddenError 没有权限
func AbortWithWithForbiddenError(err error) render.Renderer {
	return &APIResponse{
		Code:           1403,
		Message:        err.Error(),
		HTTPStatusCode: http.StatusForbidden,
	}
}

// OKRender 正常返回
func APIOK(data interface{}) render.Renderer {
	return &APIResponse{Data: data}
}