package main

import (
	"log"
	"net/http"

	"git.toowon.com/jimmy/go-commom/http"
)

// 用户结构
type User struct {
	ID    int64  `json:"id"`
	Name  string `json:"name"`
	Email string `json:"email"`
}

// 获取用户列表
func GetUserList(w http.ResponseWriter, r *http.Request) {
	// 获取分页参数
	page, pageSize := http.GetPaginationParams(r)

	// 获取查询参数
	keyword := http.GetQuery(r, "keyword", "")

	// 模拟查询数据
	users := []User{
		{ID: 1, Name: "User1", Email: "user1@example.com"},
		{ID: 2, Name: "User2", Email: "user2@example.com"},
	}
	total := int64(100)

	// 返回分页响应
	http.SuccessPage(w, users, total, page, pageSize)
}

// 创建用户
func CreateUser(w http.ResponseWriter, r *http.Request) {
	// 解析请求体
	var req struct {
		Name  string `json:"name"`
		Email string `json:"email"`
	}

	if err := http.ParseJSON(r, &req); err != nil {
		http.BadRequest(w, "请求参数解析失败")
		return
	}

	// 参数验证
	if req.Name == "" {
		http.Error(w, 1001, "用户名不能为空")
		return
	}

	// 模拟创建用户
	user := User{
		ID:    1,
		Name:  req.Name,
		Email: req.Email,
	}

	// 返回成功响应
	http.SuccessWithMessage(w, "创建成功", user)
}

// 获取用户详情
func GetUser(w http.ResponseWriter, r *http.Request) {
	// 获取查询参数
	id := http.GetQueryInt64(r, "id", 0)

	if id == 0 {
		http.BadRequest(w, "用户ID不能为空")
		return
	}

	// 模拟查询用户
	if id == 1 {
		user := User{ID: 1, Name: "User1", Email: "user1@example.com"}
		http.Success(w, user)
	} else {
		http.Error(w, 1002, "用户不存在")
	}
}

func main() {
	http.HandleFunc("/users", func(w http.ResponseWriter, r *http.Request) {
		switch r.Method {
		case http.MethodGet:
			GetUserList(w, r)
		case http.MethodPost:
			CreateUser(w, r)
		default:
			http.NotFound(w, "方法不支持")
		}
	})

	http.HandleFunc("/user", GetUser)

	log.Println("Server started on :8080")
	log.Fatal(http.ListenAndServe(":8080", nil))
}