package routers

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"main/models"
	"main/utils"
	"net/http"

	"github.com/gorilla/mux"
)

// 獲取用戶列表
func UsersGet(w http.ResponseWriter, r *http.Request) {
	var listview models.ListView
	listview.Page = utils.ParamInt(r.URL.Query().Get("page"), 1)
	listview.PageSize = utils.ParamInt(r.URL.Query().Get("pageSize"), 10)
	listview.List = models.QueryUsers(listview.Page, listview.PageSize)
	listview.Total = models.CountUsers()
	listview.Next = listview.Page*listview.PageSize < listview.Total
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(listview.ToJSON())
}

// 創建用戶
func UsersPost(w http.ResponseWriter, r *http.Request) {
	var form struct {
		Name     string `json:"name"`
		Email    string `json:"email"`
		Password string `json:"password"`
	}
	body, err := ioutil.ReadAll(r.Body)
	if err != nil {
		fmt.Println(err)
		return
	}
	defer r.Body.Close()
	if err = json.Unmarshal(body, &form); err != nil {
		fmt.Println(err)
		return
	}

	// 創建用戶
	var user models.User
	if err := user.Create(form.Name, form.Email, form.Password); err != nil {
		fmt.Println(err)
		return
	}

	// 返回信息
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(utils.ToJSON(user))
}

// 獲取用戶
func UsersItemGet(w http.ResponseWriter, r *http.Request) {
	user := models.User{ID: utils.ParamInt(mux.Vars(r)["id"], 0)}
	user.Get()
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(utils.ToJSON(user))
}

// 更新用戶
func UsersItemPatch(w http.ResponseWriter, r *http.Request) {
	user := models.User{ID: utils.ParamInt(mux.Vars(r)["id"], 0)}
	user.Get()
	user.Update()
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(utils.ToJSON(user))
}

// 刪除用戶
func UsersItemDelete(w http.ResponseWriter, r *http.Request) {
	user := models.User{ID: utils.ParamInt(mux.Vars(r)["id"], 0)}
	user.Get()
	user.Delete()
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.Write(utils.ToJSON(user))
}