package admin

import (
	"encoding/base64"
	"errors"
	"fmt"
	"github.com/gin-gonic/gin"
	"website-nav/http/param"
	"website-nav/http/response"
	"website-nav/http/vo"
	"website-nav/model"
	"website-nav/service"
	"website-nav/utils"
)

type User struct{}

func UserAPI() User {
	return User{}
}

// GetLoginUser
// @description: 获取当前登陆用户信息
// @receiver u
// @param c
func (u User) GetLoginUser(c *gin.Context) {
	var loginUser *vo.User
	if loginUser = GetCurrentLoginUser(c); c.IsAborted() {
		return
	}
	response.R(c).OkWithData(loginUser)
}

// List
// @description: 用户列表
// @receiver u
// @param c
func (u User) List(c *gin.Context) {
	var p param.UserList
	if err := c.ShouldBind(&p); err != nil {
		response.R(c).Validator(err)
		return
	}

	data, total, err := service.User().List(p)
	if err != nil {
		response.R(c).FailedWithError(err)
		return
	}

	response.R(c).Paginate(data, total, p.Current, p.Size)
}

// Save
// @description: 新增/编辑用户
// @receiver u
// @param c
func (u User) Save(c *gin.Context) {
	var p param.SaveUser
	if err := c.ShouldBind(&p); err != nil {
		response.R(c).Validator(err)
		return
	}

	ent := &model.User{
		Base: model.Base{
			Id: p.Id,
		},
		Account:  p.Account,
		Password: p.Password,
		Avatar:   p.Avatar,
		Nickname: p.Nickname,
		Contact:  p.Contact,
	}

	if err := service.User().CreateUser(ent); err != nil {
		response.R(c).FailedWithError(err)
		return
	}

	response.R(c).OK()
}

// Delete
// @description: 删除用户
// @receiver u
// @param c
func (u User) Delete(c *gin.Context) {
	var id = c.Param("id")
	if id == "" || id == "undefined" {
		response.R(c).Validator(errors.New("id不能为空"))
		return
	}

	if err := service.User().Delete(id); err != nil {
		response.R(c).FailedWithError(err)
		return
	}

	response.R(c).OK()
}

// ChangePassword
// @description: 修改密码
// @receiver u
// @param c
func (u User) ChangePassword(c *gin.Context) {
	var p param.ChangePassword
	if err := c.ShouldBind(&p); err != nil {
		response.R(c).Validator(err)
		return
	}

	user := GetCurrentLoginUser(c)
	if user == nil {
		response.R(c).FailedWithError("用户信息错误")
		return
	}

	// 判断原密码是否对
	if !utils.Password().ComparePassword(user.Password, p.OriginalPassword) {
		response.R(c).FailedWithError("原密码错误")
		return
	}

	// 修改密码
	if err := service.User().ChangePassword(user.Id, p.NewPassword); err != nil {
		response.R(c).FailedWithError(err)
		return
	}

	response.R(c).OK()
}

// ResetPassword
// @description: 重置密码
// @receiver UserApi
// @param c
func (u User) ResetPassword(c *gin.Context) {
	var id = c.Param("id")
	if id == "" || id == "undefined" {
		response.R(c).FailedWithError("id不能为空")
		return
	}

	loginUser := GetCurrentLoginUser(c)
	if loginUser == nil {
		response.R(c).FailedWithError("用户信息错误")
		return
	}

	// 先查询一下
	user, err := service.User().GetUserById(id)
	if err != nil {
		response.R(c).FailedWithError("获取用户信息失败")
		return
	}

	if user.Account == loginUser.Account {
		response.R(c).FailedWithError("当前用户不可重置密码")
		return
	}

	// 修改密码
	if err := service.User().ChangePassword(user.Id, "admin123"); err != nil {
		response.R(c).FailedWithError(err)
		return
	}

	response.R(c).OK()
}

// GenerateAvatar
// @description: 生成头像
// @receiver UserApi
// @param c
func (u User) GenerateAvatar(c *gin.Context) {
	avatar, err := utils.Avatar().GenerateAvatar(false)
	if err != nil {
		response.R(c).FailedWithError(fmt.Errorf("生成头像失败: %s", err.Error()))
		return
	}

	response.R(c).OkWithData(fmt.Sprintf("data:image/png;base64,%s", base64.StdEncoding.EncodeToString([]byte(avatar))))
}