// httpx 包示例：gin 统一响应（OkJson/ErrorJson）、参数绑定（Parse）与业务校验（Validator）
package main

import (
	"fmt"
	"net/http"

	"git.zeroonesoft.cn/golib/zogo/httpx"

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

// LoginReq 登录请求：Parse 会依次绑定 URI / Query / Header / JSON Body
type LoginReq struct {
	Username string `json:"username" form:"username" uri:"username" header:"X-Username"`
	Password string `json:"password" form:"password" uri:"password"`
}

// Validate 实现 httpx.Validator 接口，Parse 绑定完成后自动调用
func (r *LoginReq) Validate() error {
	if r.Username == "" {
		return httpx.New(1001, "用户名不能为空")
	}
	if r.Password == "" {
		return httpx.New(1002, "密码不能为空")
	}
	return nil
}

func main() {
	gin.SetMode(gin.ReleaseMode)
	r := gin.New()

	// POST /login/:username?password=xxx 或 POST /login/:username + JSON Body
	r.POST("/login/:username", func(c *gin.Context) {
		req := &LoginReq{}
		if err := httpx.Parse(c, req); err != nil {
			httpx.ErrorJson(c, err)
			return
		}
		httpx.OkJson(c, gin.H{"welcome": req.Username})
	})

	r.GET("/ping", func(c *gin.Context) {
		httpx.OkJson(c, "pong")
	})

	fmt.Println("服务已启动: http://127.0.0.1:8080")
	fmt.Println("测试: curl -X POST \"http://127.0.0.1:8080/login/admin?password=123456\"")
	fmt.Println("测试: curl -X POST http://127.0.0.1:8080/login/guest -d '{\"username\":\"\",\"password\":\"\"}'")
	if err := http.ListenAndServe("127.0.0.1:8080", r); err != nil {
		fmt.Println("服务退出:", err)
	}
}