using System.Collections;
using System.Collections.Generic;
using System.Net.Mail;
using UnityEngine;
using UnityEngine.UIElements;


/* 这个controller用来控制注册UI和相关通讯的代码
 * 设置注册语言
 * 显示和关闭注册菜单
 * 跳转下一个场景
 * 上传用户注册信息
 */

public class RegisterUIController : MonoBehaviour
{
    
    private TextField userName, password, mobile, email;
    private Button confirm, cancel;
    private Label errorMsgLabel;
    private string errorText = null;      // 错误信息汇总
    private Dictionary<string, string> errorMessageDict = new();
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        var root = GetComponent<UIDocument>().rootVisualElement;
        userName = root.Q<TextField>("name");
        password = root.Q<TextField>("password");
        mobile = root.Q<TextField>("mobile");
        email = root.Q<TextField>("email");
        confirm = root.Q<VisualElement>("confirmArea").Q<Button>("confirm");
        cancel = root.Q<VisualElement>("confirmArea").Q<Button>("cancel");
        errorMsgLabel = root.Q<Label>("error_msg");

        confirm.clicked += ConfirmClick;
        cancel.clicked += CancelClick;

        InitSetting();
        ClearTextFieldValue();
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    // 绑定confirm按键按下事件
    void ConfirmClick()
    {
        Debug.Log("confirm btn clicked.");
        if (ContentCheckBeforePost())
        {
            StartCoroutine(Register());
        }
    }

    // 绑定取消按键
    void CancelClick()
    {
        var RegCanvas = GameObject.Find("Register Canvas");
        RegCanvas.SetActive(false);
    }

    // POST数据到服务器
    IEnumerator Register()
    {
        yield return null;
    }

    // 初始化语言和显示设定
    void InitSetting()
    {
        // 设置 shopping UI界面里面label和按键的语言显示
        string textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "button", "confirm", EnviromentSetting.languageCode });
        confirm.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "button", "cancel", EnviromentSetting.languageCode });
        cancel.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "label", "name", EnviromentSetting.languageCode });
        userName.label = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "label", "password", EnviromentSetting.languageCode });
        password.label = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "label", "mobile", EnviromentSetting.languageCode });
        mobile.label = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "label", "email", EnviromentSetting.languageCode });
        email.label = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "duplicated_user_name", EnviromentSetting.languageCode });
        errorMessageDict.Add("duplicated_user_name", textValue);
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "user_name_is_empty", EnviromentSetting.languageCode });
        errorMessageDict.Add("user_name_is_empty", textValue);
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "password_too_short", EnviromentSetting.languageCode });
        errorMessageDict.Add("password_too_short", textValue);
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "mobile_is_empty", EnviromentSetting.languageCode });
        errorMessageDict.Add("mobile_is_empty", textValue);
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "email_is_empty", EnviromentSetting.languageCode });
        errorMessageDict.Add("email_is_empty", textValue);
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "email_format_wrong", EnviromentSetting.languageCode });
        errorMessageDict.Add("email_format_wrong", textValue);
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "registerUI", "error_msg", "duplicated_email", EnviromentSetting.languageCode });
        errorMessageDict.Add("duplicated_email", textValue);

        if (EnviromentSetting.languageCode == "zh-cn")
        {
            email.visible = false;
        }
        else
        {
            mobile.visible = false;
        }
    }

    // 清空TextField 内容
    void ClearTextFieldValue()
    {
        userName.value = string.Empty;
        password.value = string.Empty;
        mobile.value = string.Empty;
        email.value = string.Empty;
        errorMsgLabel.text = string.Empty;
    }

    #region 格式检测
    // POST之前的输入内容检测
    private bool ContentCheckBeforePost()
    {
        if (string.IsNullOrWhiteSpace(userName.value))
        {
            errorText += errorMessageDict["user_name_is_empty"];
            errorText += "<br>";
        }
        if (password.value.Length < 8)
        {
            errorText += errorMessageDict["password_too_short"];
            errorText += "<br>";
        }
        if (EnviromentSetting.languageCode == "zh-cn")      // 中文检测内容
        {
            if (string.IsNullOrWhiteSpace(mobile.value))
            {
                errorText += errorMessageDict["mobile_is_empty"];
                errorText += "<br>";
            }
        }
        else        // 非中文检测内容
        {
            if (string.IsNullOrWhiteSpace(email.value))
            {
                errorText += errorMessageDict["email_is_empty"];
                errorText += "<br>";
            }
            else if (!IsValidEmail(email.value))
            {
                errorText += errorMessageDict["email_format_wrong"];
                errorText += "<br>";
            }
        }
        
        
        if (string.IsNullOrWhiteSpace(errorText))
        {
            return true;
        }
        else 
        { 
            errorMsgLabel.text = errorText;
            return false; 
        }
    }

    // email 格式检测
    private bool IsValidEmail(string email)
    {
        try
        {
            var addr = new MailAddress(email);
            return addr.Address == email;
        }
        catch
        {
            return false;
        }
    }
    #endregion


}