import 'package:flutter/material.dart';
import 'package:flutter_tracker/dio/login_dao.dart';
import 'package:flutter_tracker/model/message_model.dart';
import 'package:flutter_tracker/routes/routes.dart';
import 'package:flutter_tracker/utils/app_util.dart';

class RegisterPage extends StatefulWidget {
  const RegisterPage({Key key}) : super(key: key);

  @override
  _RegisterPageState createState() => _RegisterPageState();
}

class _RegisterPageState extends State<RegisterPage> {
  //用户名密码控制器
  final TextEditingController _controllerUsn = TextEditingController();
  final TextEditingController _controllerPwd = TextEditingController();
  final TextEditingController _controllerRepwd = TextEditingController();
  final GlobalKey _formKey = GlobalKey<FormState>();

  String _userName = "";
  String _pwd = "";

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("注册账号"),
      ),
      body: Padding(
        padding: const EdgeInsets.symmetric(vertical: 16.0, horizontal: 24.0),
        child: Form(
          autovalidateMode: AutovalidateMode.always, key: _formKey, //开启自动校验
          child: ListView(
            children: [
              TextFormField(
                autofocus: true,
                controller: _controllerUsn,
                decoration: const InputDecoration(
                    labelText: "用户名",
                    hintText: "请输入用户名",
                    icon: Icon(Icons.person)),
                // 校验用户名
                validator: (v) {
                  return v.trim().isNotEmpty ? null : "用户名不能为空";
                },
                onChanged: (inputStr) {
                  _userName = inputStr;
                },
              ),
              TextFormField(
                  controller: _controllerPwd,
                  decoration: const InputDecoration(
                      labelText: "密码",
                      hintText: "请输入密码",
                      icon: Icon(Icons.lock)),
                  obscureText: true,
                  //校验密码
                  validator: (v) {
                    return v.trim().length > 5 ? null : "密码不能少于6位";
                  }),
              TextFormField(
                controller: _controllerRepwd,
                decoration: const InputDecoration(
                    labelText: "确认密码",
                    hintText: "确认登录密码",
                    icon: Icon(Icons.lock)),
                obscureText: true,
                //校验密码
                validator: (v) {
                  return v.trim().length > 5 ? null : "密码不能少于6位";
                },
                onChanged: (inputStr) {
                  _pwd = inputStr;
                },
              ),
              // 登录按钮
              Padding(
                padding: const EdgeInsets.only(top: 28.0),
                child: Row(
                  children: <Widget>[
                    Expanded(
                      child: RaisedButton(
                        padding: EdgeInsets.all(15.0),
                        child: Text("注册"),
                        color: Theme.of(context).primaryColor,
                        textColor: Colors.white,
                        onPressed: () {
                          register();
                        },
                      ),
                    ),
                  ],
                ),
              )
            ],
          ),
        ),
      ),
    );
  }

  //注册
  void register() async {
    MessageModel messageModel = await LoginDao.register(_userName, _pwd);
    if (messageModel.success) {
      Navigator.of(context).pushNamed(Routes.loginPage);
    }
    AppUtil.buildToast(messageModel.msg);
  }

// // //保存用户信息
// void saveUserInfo(UserModel userModel) async {
//   SharedPreferences prefs = await SharedPreferences.getInstance();
//   prefs.setString("token", userModel.token);
//   AppConfig.isUser = false;
//   AppConfig.token = userModel.token;
//   loadUserInfo(userModel.token);
// }
//
// void loadUserInfo(String token) async {
//   UserEntity entity = await UserDao.fetch(token);
//   if (entity?.userInfoModel != null) {
//     DialogUtil.buildToast("登录成功~");
//     Navigator.pop(context);
//     // eventBus.fire(UserLoggedInEvent("sucuss"));
//   } else {
//     DialogUtil.buildToast(entity.msgModel.msg);
//   }
// }
}