import 'dart:async';

import 'package:flutter_svg/flutter_svg.dart';
import 'package:get/get.dart';
import 'package:flutter/material.dart';
import 'package:get_storage/get_storage.dart';
import 'package:grpc/grpc.dart';
import 'package:trackoffical_app/service/api.dart';
import 'package:trackoffical_app/view/login/logo_widget.dart';
import '../../route.dart';
import '../../styles/theme.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);
        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 Stack(
      children: [
        const SvgPicture(
          SvgAssetLoader('assets/images/bk_app.svg'),
          fit: BoxFit.fitHeight,
          height: double.infinity,
          width: double.infinity,
        ),
        Scaffold(
            backgroundColor: Colors.transparent,
            appBar: AppBar(
              backgroundColor: Colors.transparent,
              automaticallyImplyLeading: false,
              title: GestureDetector(
                  onTap: () => Get.back(),
                  child: Row(
                    children: [
                      const Icon(Icons.arrow_back_ios_new, color: Colors.white),
                      Text(
                        '返回',
                        style: context.textTheme.titleMedium
                            ?.copyWith(color: Colors.white),
                      )
                    ],
                  )),
            ),
            body: SingleChildScrollView(
              child: SizedBox(
                // height: MediaQuery.of(context).size.height,
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    const LogoWidget(),
                    Container(
                      margin: const EdgeInsets.fromLTRB(40, 4, 40, 0),
                      padding: const EdgeInsets.all(12),
                      width: double.infinity,
                      decoration: BoxDecoration(
                          color: const Color(0x8fffffff),
                          borderRadius: BorderRadius.circular(7)),
                      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'),
                              onChanged: (value) {
                                controller.name = value;
                              },
                              keyboardType: TextInputType.text),
                          _columnSpace(),
                          SignInButton(
                              width: double.infinity,
                              height: 46,
                              onPressed: controller.onSignUp,
                              color1: const Color(0xffe6ff00),
                              color2: const Color(0xffffd500),
                              child: Text(
                                '注 册',
                                style: context.textTheme.titleMedium
                                    ?.copyWith(color: const Color(0xff840000)),
                              ))
                        ],
                      ),
                    ),
                    Padding(padding: MediaQuery.of(context).viewInsets),
                  ],
                ),
              ),
            ))
      ],
    );
  }

  Widget _columnSpace() {
    return const SizedBox(height: 12);
  }

  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() {
  runApp(GetMaterialApp(
      theme: appThemeData(),
      initialBinding: BindingsBuilder(() {
        Get.put<SignUpController>(SignUpController());
      }),
      home: const SignUpView()));
}