import 'package:auto_route/auto_route.dart';
import 'package:eitc_erm_dental_flutter/app_router.gr.dart';
import 'package:eitc_erm_dental_flutter/funcs.dart';
import 'package:eitc_erm_dental_flutter/pages/login/vm/login_view_model.dart';
import 'package:eitc_erm_dental_flutter/pages/patient/vm/patient_view_model.dart';
import 'package:eitc_erm_dental_flutter/vm/global_view_model.dart';
import 'package:eitc_erm_dental_flutter/widget/counting_button.dart';
import 'package:eitc_erm_dental_flutter/widget/main_button.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

import '../../global.dart';

@RoutePage(name: "loginRoute")
class LoginPage extends ConsumerStatefulWidget {
  final bool cancelable;

  const LoginPage({super.key, required this.cancelable});

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

class _LoginPageState extends ConsumerState<LoginPage> {
  final TextEditingController _mobileTextController = TextEditingController();
  final TextEditingController _captchaTextController = TextEditingController();
  final CountingButtonController _countingButtonController =
      CountingButtonController();

  bool _isAgreementChecked = false;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      //刷新本地就诊人列表数据
      ref.invalidate(localPatientListProvider);
      if (!widget.cancelable) {
        //停止检查连接
        ref
            .read(deviceConnectStatusProvider(videoChannel).notifier)
            .stopCheck();
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        automaticallyImplyLeading: widget.cancelable,
        forceMaterialTransparency: true,
      ),
      body: SafeArea(
          child: SingleChildScrollView(
        child: Padding(
          padding: EdgeInsets.fromLTRB(15.w, 50.h, 15.w, 0.0),
          child: Column(children: [
            Text(
              getS().registerHint,
              textAlign: TextAlign.center,
              style: Theme.of(context).textTheme.titleMedium,
            ),
            SizedBox(
              height: 80.h,
            ),
            _getInputs(),
            SizedBox(
              height: 10.h,
            ),
            _getAgreements(),
            SizedBox(
              height: 80.h,
            ),
            SizedBox(
              width: double.infinity,
              child: MainButton(text: getS().login, onPressed: _onLogin),
            ),
          ]),
        ),
      )),
    );
  }

  ///输入框
  Widget _getInputs() {
    //保证内部元素高度一致
    return IntrinsicHeight(
      child: Row(
        children: [
          Column(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Text(getS().mobileColon),
              SizedBox(
                height: 30.h,
              ),
              Text(getS().captchaColon)
            ],
          ),
          SizedBox(
            width: 10.w,
          ),
          Expanded(
              child: Column(
            children: [
              _getMobileInput(),
              SizedBox(
                height: 30.h,
              ),
              Row(
                children: [
                  Expanded(child: _getCaptchInput()),
                  SizedBox(
                    width: 10.w,
                  ),
                  CountingButton(
                    controller: _countingButtonController,
                    onGetChild: (t, isCounting) {
                      String str = getS().send;
                      if (isCounting) {
                        str = "$str(${60 - t})";
                      }
                      return Text(
                        str,
                        style: TextStyle(
                            color: Theme.of(context).colorScheme.onPrimary,
                            fontWeight: FontWeight.bold),
                      );
                    },
                    onPressed: _onSendCaptcha,
                  )
                ],
              ),
            ],
          ))
        ],
      ),
    );
  }

  ///手机号输入框
  Widget _getMobileInput() {
    return _getTextInput(_mobileTextController, 11, TextInputType.phone,
        getS().mobileInputHint, [FilteringTextInputFormatter.digitsOnly]);
  }

  ///验证码输入框
  Widget _getCaptchInput() {
    return _getTextInput(_captchaTextController, 6, TextInputType.number,
        getS().captchaInputHint, [FilteringTextInputFormatter.digitsOnly]);
  }

  ///文本输入框
  Widget _getTextInput(
      TextEditingController controller,
      int? maxLength,
      TextInputType? keyboardType,
      String hint,
      List<TextInputFormatter>? inputFormatters) {
    return Container(
      padding: EdgeInsets.symmetric(horizontal: 10.w, vertical: 10.h),
      decoration: BoxDecoration(
          color: Theme.of(context).colorScheme.surfaceContainerHigh,
          borderRadius: BorderRadius.circular(8.r)),
      child: TextField(
        controller: controller,
        maxLines: 1,
        maxLength: maxLength,
        keyboardType: keyboardType,
        decoration: InputDecoration(
          isDense: true,
          contentPadding: EdgeInsets.zero,
          border: const OutlineInputBorder(borderSide: BorderSide.none),
          counterText: "",
          hintText: hint,
          hintStyle: const TextStyle(color: Color(0xFF999999)),
        ),
        inputFormatters: inputFormatters,
      ),
    );
  }

  ///用户协议及隐私协议
  Widget _getAgreements() {
    return Row(
      children: [
        Checkbox(
            value: _isAgreementChecked,
            onChanged: (bo) {
              setState(() {
                _isAgreementChecked = bo ?? false;
              });
            }),
        Expanded(
            child: Text.rich(
          softWrap: true,
          TextSpan(text: getS().readAndAgree, children: [
            getClickTextSpan(getS().userAgreementBookTitle,
                () => gotoUserAgreement(context, checkWifi: false)),
            TextSpan(text: "、"),
            getClickTextSpan(getS().privacyPolicyBookTitle,
                () => gotoPrivacyPolicy(context, checkWifi: false)),
          ]),
        )),
      ],
    );
  }

  TextSpan getClickTextSpan(String text, GestureTapCallback onTap) {
    return TextSpan(
        text: text,
        style: TextStyle(color: Theme.of(context).colorScheme.primary),
        recognizer: TapGestureRecognizer()..onTap = onTap);
  }

  ///发送验证码
  void _onSendCaptcha() async {
    if (!validMobile(_mobileTextController.text)) {
      showToast(text: getS().mobileFormatError);
      return;
    }
    _countingButtonController.start(60);

    bool bo = await ref
        .read(captchaProvider.notifier)
        .sendCaptcha(_mobileTextController.text);
    showToast(text: bo ? getS().captchaHasSend : getS().captchaSendError);
  }

  ///验证输入
  Future<bool> _validInput() async {
    ///手机号
    if (_mobileTextController.text.isEmpty) {
      showToast(text: getS().mobileInputHint);
      return SynchronousFuture(false);
    }

    ///手机号格式
    if (!validMobile(_mobileTextController.text)) {
      showToast(text: getS().mobileFormatError);
      return SynchronousFuture(false);
    }

    ///验证码
    if (_captchaTextController.text.isEmpty) {
      showToast(text: getS().captchaInputHint);
      return SynchronousFuture(false);
    }

    ///用户协议及隐私协议
    if (!_isAgreementChecked) {
      showToast(text: getS().needReadAndAgree);
      return SynchronousFuture(false);
    }

    //调用接口验证验证码
    logd("验证验证码");
    if (!await ref.read(captchaProvider.notifier).checkCaptcha(
        _captchaTextController.text, _mobileTextController.text)) {
      showToast(text: getS().captchaError);
      return SynchronousFuture(false);
    }

    return SynchronousFuture(true);
  }

  void _onLogin() async {
    if (!await _validInput()) {
      return;
    }
    logd("登录");
    bool bo = await ref
        .read(loginProvider.notifier)
        .login(_mobileTextController.text);
    if (bo) {
      showToast(text: getS().loginSuccess);
      if (mounted) {
        popAllRoutes(context);
        context.pushRoute(const MainRoute());
        //刷新本地就诊人列表数据
        ref.invalidate(localPatientListProvider);
      }
    } else {
      showToast(text: getS().loginFailed);
    }
  }
}