// 统一 API 响应格式，所有接口使用此包返回数据
package response

import (
	"net/http"

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

// Response 统一响应结构：code=200 成功，其他为业务错误码
type Response struct {
	Code    int         `json:"code"`
	Message string      `json:"msg"`
	Data    interface{} `json:"data,omitempty"`
}

// PageData 分页数据结构
type PageData struct {
	List     interface{} `json:"list"`
	Total    int64       `json:"total"`
	Page     int         `json:"page"`
	PageSize int         `json:"page_size"`
}

// ===== 成功响应 =====

func Success(c *gin.Context, data interface{}) {
	c.JSON(http.StatusOK, Response{Code: 200, Message: "success", Data: data})
}

func SuccessWithMessage(c *gin.Context, message string, data interface{}) {
	c.JSON(http.StatusOK, Response{Code: 200, Message: message, Data: data})
}

func SuccessPage(c *gin.Context, list interface{}, total int64, page, pageSize int) {
	c.JSON(http.StatusOK, Response{Code: 200, Message: "success", Data: PageData{
		List: list, Total: total, Page: page, PageSize: pageSize,
	}})
}

// ===== 错误响应 =====

func Error(c *gin.Context, code int, message string) {
	c.JSON(http.StatusOK, Response{Code: code, Message: message})
}

func ErrorWithStatus(c *gin.Context, httpStatus int, code int, message string) {
	c.JSON(httpStatus, Response{Code: code, Message: message})
}

func BadRequest(c *gin.Context, message string) { Error(c, 400, message) }
func Unauthorized(c *gin.Context, message string) {
	ErrorWithStatus(c, http.StatusUnauthorized, 401, message)
}
func Forbidden(c *gin.Context, message string) {
	ErrorWithStatus(c, http.StatusForbidden, 403, message)
}
func NotFound(c *gin.Context, message string) { ErrorWithStatus(c, http.StatusNotFound, 404, message) }
func InternalError(c *gin.Context, message string) {
	ErrorWithStatus(c, http.StatusInternalServerError, 500, message)
}