// Package resp 统一结果响应：{code, message, data}。
// code = 0 表示成功，非 0 为业务错误码。
package resp

import (
	"net/http"

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

const (
	CodeOK           = 0
	CodeBadRequest   = 40000
	CodeUnauthorized = 40100
	CodeNotFound     = 40400
	CodeServerError  = 50000
)

type Body struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
	Data    any    `json:"data,omitempty"`
}

// PageResult 分页数据统一结构。
type PageResult struct {
	List     any   `json:"list"`
	Total    int64 `json:"total"`
	Page     int   `json:"page"`
	PageSize int   `json:"page_size"`
}

func OK(c *gin.Context, data any) {
	c.JSON(http.StatusOK, Body{Code: CodeOK, Message: "ok", Data: data})
}

func Page(c *gin.Context, list any, total int64, page, pageSize int) {
	OK(c, PageResult{List: list, Total: total, Page: page, PageSize: pageSize})
}

func BadRequest(c *gin.Context, message string) {
	c.JSON(http.StatusBadRequest, Body{Code: CodeBadRequest, Message: message})
}

func Unauthorized(c *gin.Context, message string) {
	c.AbortWithStatusJSON(http.StatusUnauthorized, Body{Code: CodeUnauthorized, Message: message})
}

func NotFound(c *gin.Context, message string) {
	c.JSON(http.StatusNotFound, Body{Code: CodeNotFound, Message: message})
}

func ServerError(c *gin.Context, message string) {
	c.JSON(http.StatusInternalServerError, Body{Code: CodeServerError, Message: message})
}