message_widget.dart

// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import 'package:flutter/material.dart';
import 'package:flutter_markdown/flutter_markdown.dart';

class MessageWidget extends StatelessWidget {
  const MessageWidget({
    super.key,
    this.text,
    this.image,
    required this.isFromUser,
  });

  final Image? image;
  final String? text;
  final bool isFromUser;

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisAlignment: isFromUser
          ? MainAxisAlignment.end
          : MainAxisAlignment.start,
      children: [
        Flexible(
          child: Container(
            constraints: const BoxConstraints(maxWidth: 520),
            decoration: BoxDecoration(
              color: isFromUser
                  ? Theme.of(context).colorScheme.primaryContainer
                  : Theme.of(context).colorScheme.surfaceContainerHighest,
              borderRadius: BorderRadius.circular(18),
            ),
            padding: const EdgeInsets.symmetric(vertical: 15, horizontal: 20),
            margin: const EdgeInsets.only(bottom: 8),
            child: Column(
              children: [
                if (text case final text?) MarkdownBody(data: text),
                ?image,
              ],
            ),
          ),
        ),
      ],
    );
  }
}