eatvio_app/lib/presentation/chat/chat_screen/chat_screen.dart

import 'package:go_router/go_router.dart';

import 'bloc/chat_bloc.dart';
import 'models/chat_model.dart';
import 'package:eatvio_app/core/app_export.dart';
import 'package:flutter/material.dart';
import 'package:eatvio_app/widgets/app_bar/custom_app_bar.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_subtitle.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_leading_image.dart';

class ChatScreen extends StatelessWidget {
  const ChatScreen({Key? key}) : super(key: key);

  static Widget builder(BuildContext context, chatID) {
    return BlocProvider<ChatBloc>(
      create: (context) => ChatBloc(ChatState(chatModelObj: ChatModel(chatID: chatID.toString())))
        ..add(
          ChatInitialEvent(),
        ),
      child: ChatScreen(),
    );
  }

  Widget build(BuildContext context) {
    return BlocBuilder<ChatBloc, ChatState>(
      builder: (context, state) {
        if (state is ChatInitialState) {
          return Scaffold(
            body: Center(
              child: CircularProgressIndicator(),
            ),
          );
        } else if (state is ChatLoadedState) {
          // Данные загружены, можно строить экран.
          return _buildChat(context, state);
        } else if (state is ChatErrorState) {
          // Произошла ошибка при загрузке данных.
          return Center(child: Text(state.errorMessage));
        } else {
          return Scaffold(
            body: Center(
              child: CircularProgressIndicator(),
            ),
          );
        }
      },
    );
  }

  _buildChat(BuildContext context, ChatLoadedState state) {
    mediaQueryData = MediaQuery.of(context);
    return Scaffold(
      resizeToAvoidBottomInset: true,
      appBar: _buildAppbar(context, state),
      body: SizedBox(
        width: double.maxFinite,
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Container(
              width: double.maxFinite,
              decoration: AppDecoration.fillGray,
              child: ListView(
                shrinkWrap: true,
                children: [
                  for (int i = 0; i < state.messages!.length; i++) ...[Text(state.messages![i].data)]
                ],
              ),
            ),
            const Spacer(),
            Row(
              crossAxisAlignment: CrossAxisAlignment.center,
              children: [
                SizedBox(width: 8),
                InkWell(
                  onTap: () {},
                  borderRadius: BorderRadius.circular(16),
                  child: Ink(
                    height: 32,
                    width: 32,
                    child: Icon(
                      Icons.attach_file_rounded,
                      size: 28,
                    ),
                  ),
                ),
                SizedBox(width: 8),
                SizedBox(
                  width: mediaQueryData.size.width - 96,
                  child: TextFormField(
                    maxLines: 5,
                    minLines: 1,
                    keyboardType: TextInputType.multiline,
                    decoration: InputDecoration(
                      contentPadding: EdgeInsets.symmetric(horizontal: 8, vertical: 0),
                      hintText: 'Сообщение',
                      border: OutlineInputBorder(
                        borderRadius: BorderRadius.circular(16),
                        borderSide: BorderSide(
                          color: Color(0xFFD1D1D6),
                          width: 1,
                        ),
                      ),
                      enabledBorder: OutlineInputBorder(
                        borderRadius: BorderRadius.circular(16),
                        borderSide: BorderSide(
                          color: Color(0xFFD1D1D6),
                          width: 1,
                        ),
                      ),
                      focusedBorder: OutlineInputBorder(
                        borderRadius: BorderRadius.circular(16),
                        borderSide: BorderSide(
                          color: Color(0xFFD1D1D6),
                          width: 1,
                        ),
                      ),
                    ),
                  ),
                ),
                SizedBox(width: 8),
                InkWell(
                  borderRadius: BorderRadius.circular(16),
                  onTap: () {},
                  child: Ink(
                    height: 32,
                    width: 32,
                    child: Icon(
                      Icons.send,
                      size: 28,
                    ),
                  ),
                ),
                SizedBox(width: 8),
              ],
            ),
          ],
        ),
      ),
    );
  }

  /// Section Widget
  _buildAppbar(BuildContext context, ChatLoadedState state) {
    return CustomAppBar(
      leadingWidth: 26.h,
      leading: AppbarLeadingImage(
        imagePath: ImageConstant.imgArrowLeft,
        margin: EdgeInsets.only(
          left: 16.h,
          top: 18.v,
          bottom: 25.v,
        ),
        onTap: () => onTapArrowleftone(context),
      ),
      title: Padding(
        padding: EdgeInsets.only(left: 12.h),
        child: Row(
          children: [
            Padding(
              padding: EdgeInsets.only(
                left: 12.h,
                top: 2.v,
              ),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  AppbarSubtitle(
                    text: 'username',
                  ),
                  SizedBox(height: 3.v),
                  Text("Был в сети вчера", style: theme.textTheme.bodySmall!)
                ],
              ),
            )
          ],
        ),
      ),
    );
  }

  /// Navigates to the previous screen.
  onTapArrowleftone(BuildContext context) {
    GoRouter.of(context).pop();
  }
}