import 'dart:convert';
import 'dart:io';

import 'package:eitc_erm_app/registration.dart';
import 'package:eitc_erm_app/utils/Component.dart';
import 'package:eitc_erm_app/utils/Constants.dart';
import 'package:eitc_erm_app/utils/logger.dart';
import 'package:eitc_erm_app/widget/loading.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

import 'add_patient.dart';
import 'bean/user_list.dart';
import 'online_consultation.dart';

String mFrom = "";
// void main() {
//   WidgetsFlutterBinding.ensureInitialized();
//   runApp(SelectPatient());
// }

class SelectPatient extends StatefulWidget {
  SelectPatient(String from) {
    mFrom = from;
  }

  @override
  State<StatefulWidget> createState() => SelectPatientState();
}

class SelectPatientState extends State<SelectPatient> {
  ValueNotifier<dynamic> result = ValueNotifier(null);
  late Future<UserListEntity?> _future;
  late BuildContext cxt;

  @override
  void initState() {
    super.initState();
    _future = fetchData();
  }

  Future<UserListEntity?> fetchData() async {
    Map<String, String> headers = {
      'token': '${Global.token}',
    };
    final response =
        await http.get(Uri.parse('${Global.BaseUrl}user/list'), headers: jsonHeaders(withToken: true));
    if (response.statusCode == 200) {
      final json = decodeBodyToJson(response.bodyBytes);
      logd("就诊人列表=$json");
      UserListEntity mUserListEntity =
          new UserListEntity.fromJson(json);
      if (mUserListEntity.code == Global.responseSuccessCode) {
      } else {
        Component.toast("服务器错误提示：" + mUserListEntity.msg.toString(), 0);
        return null;
      }
      return mUserListEntity;
    } else {
      Component.toast("出错了，请稍后再试！", 0);
      return null;
    }
  }

  @override
  Widget build(BuildContext context) {
    cxt = context;
    return Scaffold(
      appBar: new AppBar(
        title: new Text('选择就诊人',
            style: TextStyle(
              color: Colors.white,
            )),
        centerTitle: true,
        elevation: 0.5,
        backgroundColor: Global.StatusBarColor,
        leading: new IconButton(
          tooltip: '返回上一页',
          icon: const Icon(
            Icons.arrow_back_ios,
            color: Colors.white,
          ),
          onPressed: () {
            Navigator.of(context).pop();
            //_nextPage(-1);
          },
        ),
      ),
      body: Column(children: [
        /*Text(
            '选择就诊人',
            style: const TextStyle(fontSize: 15),
            textAlign: TextAlign.start,
            overflow: TextOverflow.ellipsis,
          ),*/
        FutureBuilder<UserListEntity?>(
          future: _future,
          builder: (context, snapshot) {
            if (snapshot.hasData) {
              UserListEntity? data = snapshot.data;
              return Expanded(
                  // wrap in Expanded
                  child: ListView.separated(
                itemCount: data?.data!.length ?? 0,
                itemBuilder: (context, index) {
                  return ListTile(
                    title: Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        children: [
                          Row(children: [
                            Text(
                              data!.data == null
                                  ? ""
                                  : data.data![index].patientName as String,
                              style: const TextStyle(fontSize: 18),
                            ),
                            const SizedBox(width: 15),
                            // if (index == 0)
                            Container(
                              padding:
                                  const EdgeInsets.symmetric(horizontal: 5),
                              decoration: const ShapeDecoration(
                                  shape: StadiumBorder(),
                                  color: Colors.lightBlueAccent),
                              child: Text(
                                  " ${data.data == null ? "" : data.data![index].userRelationship} ",
                                  style: const TextStyle(
                                      color: Colors.white, fontSize: 13)),
                            ),
                          ]),
                          if (data.data == null
                              ? false
                              : data.data![index].isDefault == 1)
                            const Text(
                              '默认就诊人',
                              style:
                                  TextStyle(fontSize: 13, color: Colors.grey),
                            ),
                        ]),
                    subtitle: Text(
                        '身份证-${data!.data == null ? "" : data!.data![index].identificationCard}'),
                    onTap: () {
                      Global.appointmentPersonId =
                          data!.data![index].patientId!;
                      Global.patient = data;
                      Global.selectPatient = index;
                      if (mFrom == "fromDoctorDetail") {
                        Navigator.of(cxt).pop();
                      } else if (mFrom == "fromRecordRegistration") {
                        Navigator.pop(cxt, "success");
                      } else if (mFrom == "fromSelectDoctor") {
                        Navigator.push(
                          context,
                          MaterialPageRoute(
                              builder: (context) => OnlineConsultation()),
                        );
                      } else {
                        Navigator.push(
                          context,
                          MaterialPageRoute(
                              builder: (context) => Registration(
                                  userListEntity: data,
                                  whichPatient: index,
                                  key: Key(""))),
                        );
                      }
                    },
                  );
                },
                separatorBuilder: (BuildContext context, int index) =>
                    const Divider(),
              ));
            } else if (snapshot.hasError) {
              return Text('Error: ${snapshot.error}');
            }
            return const Expanded(
                child: Center(
              child: ColorLoader(),
            ));
          },
        ),
        Padding(
          padding: const EdgeInsets.symmetric(horizontal: 20),
          child: SizedBox(
            width: double.infinity,
            child: ElevatedButton(
              style: const ButtonStyle(
                backgroundColor: WidgetStatePropertyAll(Colors.blue),
              ),
              onPressed: () async {
                final result = await Navigator.push(
                  context,
                  MaterialPageRoute(
                      builder: (context) => AddPatient(
                            userListEntity: UserListEntity(),
                            whichPatient: -1,
                            key: const Key(""),
                          )),
                );
                setState(() {
                  _future = fetchData();
                });
              },
              child: const Text("添加就诊人",
                  style: TextStyle(color: Colors.white, fontSize: 15)),
            ),
          ),
        ),
        const SizedBox(
          height: 10,
        )
      ]),
    );
  }
}