import 'dart:async';
import 'package:flutter/gestures.dart';
import 'package:get/get.dart';
import 'package:flutter/material.dart';
import 'package:grpc/grpc.dart';
import 'package:trackoffical_app/screen.dart';
import 'package:trackoffical_app/service/api.dart';
import 'common.dart';
import '../../route.dart';
import 'package:trackoffical_app/pb.dart' as pb;

class SignUpController extends GetxController {
  var phone = '';
  var code = '';
  String name = '' ;
  final sex = pb.User_Sex.Male.obs;
  final codeRetryLeft = 0.seconds.obs;
  Timer? ticker;
  final isSignUpEnable = true.obs;

  @override
  void onInit() {
    super.onInit();
    ticker = Timer.periodic(1.seconds, (timer) {
      codeRetryLeft.value -= 1.seconds;
    });
  }

  onGetCode() async{
    try{
      await ApiService.to.authSendCodeToPhone(phone, pb.SmsType.SignUp);
      codeRetryLeft.value = await ApiService.to.getSmsSendLeftTime(phone);
    }on GrpcError catch(e){
      if (e.code== StatusCode.alreadyExists){
        Get.snackbar('已注册', '请直接登录');
      }else{
        Get.snackbar('发送失败', e.message??'');
      }
    }catch(e){
      Get.snackbar('发送失败', e.toString());
    }

  }
  void onSignUp() async{
    if(name.isEmpty){
      Get.snackbar('请输入昵称', '不能为空');
      return;
    }

    if(isSignUpEnable.value){
      isSignUpEnable.value = false;

      try{
        await ApiService.to.signUp(phone, code, name, sex.value);
        await ApiService.to.flushUserInfo();
        Get.offAllNamed(RouteName.homeSaveUserInfo);
      } on GrpcError catch(e){
        if (e.code== StatusCode.unauthenticated){
          Get.snackbar('验证码错误', '请重新输入');
        }else{
          Get.snackbar('注册失败', e.message??'');
        }
      }catch(e){
        Get.snackbar('注册失败', e.toString());
      }finally {
        isSignUpEnable.value = true;
      }
    }
  }
}

class SignUpView extends GetView<SignUpController> {
  const SignUpView({super.key});
  static void show(){
    Get.to(const SignUpView(), binding: BindingsBuilder(() {
      Get.put(SignUpController());
    }));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppTopBar(title: '注册账号', hasBackText: true, height: context.height*0.3),
      body: Padding(
        padding: EdgeInsets.fromLTRB(13.89.wp, 11.39.wp, 13.89.wp, 11.39.wp),
        child: Column(
          children: [
            TextFormField(
                decoration:
                const TextDecoration(hintText: '请输入手机号'),
                validator: (String? value) {
                  if (value == null || !value.isPhoneNumber) {
                    return '请输入正确的手机号';
                  }
                  return null;
                },
                onChanged: (value) {
                  controller.phone = value;
                },
                keyboardType: TextInputType.phone),
            _columnSpace(),
            _textFieldCode(),
            _columnSpace(),
            TextFormField(
                decoration:
                const TextDecoration(hintText: '昵称（必填）'),
                onChanged: (value) {
                  controller.name = value;
                },
                keyboardType: TextInputType.text),
            _columnSpace(),
            button('注    册', controller.onSignUp),
            const Spacer(),
            Text.rich(TextSpan(
                text: '我已有账号，点击返回 ',
                style: TextStyle(fontSize: 33.33.rpx, color: Colors.black),
                children: [
                  TextSpan(
                    text: '登录页面',
                    style: const TextStyle(color: Color(0xffffb40b)),
                    recognizer: TapGestureRecognizer()
                      ..onTap = () {
                        Get.back();
                      },
                  ),
                ])),
          ],
        ),
      ),
    );
  }

  Widget _columnSpace() {
    return SizedBox(height: 6.12.wp);
  }

  Widget _textFieldCode() {
    return Stack(
      alignment: Alignment.centerRight,
      children: [
        TextFormField(
          decoration: const TextDecoration(
            hintText: '请输入验证码',
          ),
          onChanged: (value) {
            controller.code = value;
          },
          keyboardType: TextInputType.number,
        ),
        Padding(
          padding: const EdgeInsets.only(right: 4),
          child: SizedBox(
            width: 84,
            height: 37,
            child: Obx(() => GetCodeButton(
                  codeRetryLeft: controller.codeRetryLeft.value,
                  onPressed: () => controller.onGetCode(),
                )),
          ),
        ),
      ],
    );
  }
}

void main() {
  Get.lazyPut(()=>SignUpController());
  runPreview(const SignUpView());
}