import 'dart:async';

import 'package:bot_toast/bot_toast.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:project_telephony/ui/widget/plone_back_button.dart';
import 'package:project_telephony/utils/headers.dart';
import 'package:provider/provider.dart';
import '../../base/base_style.dart';
import '../../constants/api.dart';
import '../../constants/environment/environment.dart';
import '../../model/network/api_client.dart';
import '../../providers/user_provider.dart';
import '../../utils/toast/cloud_toast.dart';
import '../../utils/user_tool.dart';
import '../tab_navigator.dart';
import '../widget/image_scaffold.dart';
import '../widget/plone_bottom.dart';

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

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

class _LoginPageState extends State<LoginPage> {
  bool _chooseAgreement = false;
  bool _getCodeEnable = true;
  late Timer _timer;

  ///时钟
  String _countDownStr = "发送验证码";

  ///初始化文本
  int _countDownNum = 59;
  late TextEditingController _phoneController;
  late TextEditingController _smsCodeController;
  late FocusNode _phoneFocusNode;
  late FocusNode _smsCodeFocusNode;
  bool _cantSelected = false;

  @override
  void initState() {
    super.initState();
    _phoneFocusNode = FocusNode();
    _smsCodeFocusNode = FocusNode();
    _phoneController = TextEditingController();
    _smsCodeController = TextEditingController();
    final userProvider = Provider.of<UserProvider>(context, listen: false);
    var env = const String.fromEnvironment('ENV', defaultValue: 'dev');
    if (kDebugMode) {
      print('env :$env');
    }
    DevEV.instance.setEnvironment(
      context,
      environment: env == 'dev',
    );
  }

  @override
  void dispose() {
    _phoneFocusNode.dispose();
    _smsCodeFocusNode.dispose();
    _phoneController.dispose();
    _smsCodeController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return CloudScaffold(
      systemStyle: const SystemUiOverlayStyle(
        statusBarIconBrightness: Brightness.dark,
      ),
      path: Assets.images.bg.path,
      appbar: Row(
        children: [
          Padding(
            padding: EdgeInsets.only(top: 88.w, left: 8.w),
            child: const CloudBackButton(isSpecial: true),
          ),
          Padding(
              padding: EdgeInsets.only(left: 186.w, top: 88.w),
              child: Text(
                "登录/注册",
                style: TextStyle(
                    fontSize: BaseStyle.fontSize34,
                    color: BaseStyle.color333333,
                    fontWeight: FontWeight.bold),
              ))
        ],
      ),
      extendBody: true,
      body: Container(
        padding: EdgeInsets.only(left: 64.w, right: 64.w, top: 124.w),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(
              "短信帮手",
              style: TextStyle(
                  fontSize: 64.sp,
                  fontWeight: FontWeight.bold,
                  color: Colors.black),
            ),
            32.hb,
            Text(
              "希望能成为您的短信小助手",
              style: TextStyle(fontSize: 32.sp, color: const Color(0xFF999999)),
            ),
            80.hb,
            _getBox('+86', 36, _phoneTFWidget()),
            _getBox('验证码', 32, _codeWidget()),
            112.hb,
            PloneBottom(
              blM: false,
              border: _phoneController.text.length != 11,
              opacity: _phoneController.text.length == 11 ? 1 : 0.4,
              onTap: () async{
                if (_phoneController.text.length < 11) {
                  BotToast.showText(text: "请输入手机号");
                }else if(_smsCodeController.text.length < 6){
                  BotToast.showText(text: "请输入验证码");
                }else if(!_chooseAgreement){
                  BotToast.showText(text: "请同意并勾选隐私政策");
                }else{
                  var base = await apiClient.request(API.app.login,
                      data: {'phone': _phoneController.text, 'code': _smsCodeController.text});
                  if (base.code == 0) {
                    await UserTool.userProvider.setToken(base.data['token']);
                    Get.to(() => const TabNavigator());
                  } else {
                    CloudToast.show(base.msg);
                  }
                }
              },
              text: "立即登录",
            ),
            32.hb,
            _getText()
          ],
        ),
      ),
    );
  }

  _getBox(String text, int fontSize, Widget plone) {
    return Container(
      height: 144.w,
      width: double.infinity,
      padding: EdgeInsets.symmetric(vertical: 48.w),
      decoration: BoxDecoration(
        // color: Colors.black12,
        border: Border(
          bottom: BorderSide(color: const Color(0xFFE8E8E8), width: 1.w),
        ),
      ),
      child: Row(children: [
        SizedBox(
          width: 112.w,
          child: Text(
            text,
            style: TextStyle(
                fontSize: fontSize.sp,
                color: BaseStyle.color333333,
                fontWeight: FontWeight.bold),
          ),
        ),
        Container(
          width: 2.w,
          height: 48.w,
          margin: EdgeInsets.symmetric(horizontal: 32.w),
          color: const Color(0xFFE8E8E8),
        ),
        plone,
      ]),
    );
  }

//  输入手机号
  _phoneTFWidget() {
    return SizedBox(
      // alignment: Alignment.centerLeft,
      // padding: EdgeInsets.symmetric(horizontal: 72.w),
      width: 430.w,
      height: 50.w,
      child: TextField(
        maxLength: 11,
        inputFormatters: [FilteringTextInputFormatter.allow(RegExp(r'[0-9]'))],
        textCapitalization: TextCapitalization.none,
        onChanged: (text) {
          _phoneController.text = text;
          setState(() {});
        },
        decoration: InputDecoration(
            contentPadding: EdgeInsets.only(bottom: 20.w),
            border: InputBorder.none,
            counterText: "",
            //textfield占位语，类似于iOS中的placeholder
            hintText: "请输入手机号",
            //占位语颜色
            hintStyle: const TextStyle(color: Colors.black12),
            suffixIcon: GestureDetector(
              onTap: !_getCodeEnable
                  ? () {}
                  : () async {
                      await apiClient.request(API.app.captcha, data: {
                        'phone': _phoneController.text,
                      });
                      _beginCountDown();
                      if (_cantSelected) return;
                      _cantSelected = true;
                      Future.delayed(const Duration(seconds: 1), () {
                        _cantSelected = false;
                      });
                    },
              child: Container(
                width: 180.w,
                alignment: Alignment.centerRight,
                color: Colors.transparent,
                child: Text(
                  _countDownStr,
                  style: TextStyle(
                      color: _getCodeEnable
                          ? kPrimaryColor
                          : BaseStyle.colorcccccc),
                ),
              ),
            )),
      ),
    );
  }

//  输入验证码
  _codeWidget() {
    return SizedBox(
      // alignment: Alignment.centerLeft,
      // padding: EdgeInsets.symmetric(horizontal: 72.w),
      width: 430.w,
      height: 50.w,
      child: TextField(
        maxLength: 6,
        inputFormatters: [FilteringTextInputFormatter.allow(RegExp(r'[0-9]'))],
        textCapitalization: TextCapitalization.none,
        onChanged: (text) {
          _smsCodeController.text = text;
          setState(() {});
        },
        decoration: InputDecoration(
          contentPadding: EdgeInsets.only(bottom: 20.w),
          border: InputBorder.none,
          counterText: "",
          //textfield占位语，类似于iOS中的placeholder
          hintText: "请输入验证码",
          //占位语颜色
          hintStyle: const TextStyle(color: Colors.black12),
        ),
      ),
    );
  }

  _beginCountDown() {
    ///开始倒计时
    setState(() {
      _getCodeEnable = false;
      _countDownStr = "${_countDownNum}s";
    });
    _timer = Timer.periodic(const Duration(seconds: 1), (timer) {
      if (!mounted) {
        return;
      }
      setState(() {
        if (_countDownNum == 0) {
          _countDownNum = 59;
          _countDownStr = "获取验证码";
          _getCodeEnable = true;
          _timer.cancel();
          return;
        }
        _countDownStr = "${_countDownNum--}s";
      });
    });
  }

//  协议
  _recognizer(context, int type) {
    final TapGestureRecognizer recognizer = TapGestureRecognizer();
    recognizer.onTap = () {
      if (kDebugMode) {
        print("点击协议了");
      }

      ///跳转到用户协议页面
    };
    return recognizer;
  }

  _getText() {
    return GestureDetector(
      onTap: () {
        _chooseAgreement = !_chooseAgreement;
        setState(() {});
      },
      child: Row(
        mainAxisSize: MainAxisSize.min,
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Container(
            width: 50.w,
            height: 50.w,
            padding: EdgeInsets.only(top: 6.w, right: 5.w),
            child: !_chooseAgreement
                ? const Icon(CupertinoIcons.circle,
                    size: 18, color: Color(0xFFdddddd))
                : const Icon(CupertinoIcons.checkmark_circle,
                    size: 18, color: Colors.blue),
          ),
          RichText(
              text: TextSpan(
                  text: "我已阅读并同意",
                  style: TextStyle(
                      color: BaseStyle.colorcccccc, fontSize: 12 * 2.sp),
                  children: [
                TextSpan(
                    text: '《用户服务协议》',
                    style: TextStyle(color: kPrimaryColor, fontSize: 12 * 2.sp),
                    recognizer: _recognizer(context, 2)),
                TextSpan(
                  text: "和",
                  style: TextStyle(
                      color: BaseStyle.colorcccccc, fontSize: 12 * 2.sp),
                ),
                TextSpan(
                    text: '《隐私协议》',
                    style: TextStyle(color: kPrimaryColor, fontSize: 12 * 2.sp),
                    recognizer: _recognizer(context, 1)),
              ])),
        ],
      ),
    );
  }
}