/// Chat file tile
///
/// @author Pierre Hubert
import 'package:comunic/models/conversation_message.dart';
import 'package:comunic/ui/widgets/network_image_widget.dart';
import 'package:filesize/filesize.dart';
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';

class ConversationFileWidget extends StatefulWidget {
  final int messageID;
  final ConversationMessageFile file;
  final Color defaultBackgroundColor;

  const ConversationFileWidget({
    Key key,
    @required this.defaultBackgroundColor,
    @required this.messageID,
    @required this.file,
  })  : assert(messageID != null),
        assert(file != null),
        super(key: key);

  @override
  _ConversationFileWidgetState createState() => _ConversationFileWidgetState();
}

class _ConversationFileWidgetState extends State<ConversationFileWidget> {
  ConversationMessageFile get file => widget.file;

  @override
  Widget build(BuildContext context) => Container(
        width: 150,
        height: 100,
        child: _buildContent(),
      );

  Widget _buildContent() {
    switch (file.fileType) {
      // Images
      case ConversationMessageFileType.IMAGE:
        return Center(
          child: NetworkImageWidget(
            url: file.url,
            thumbnailURL: file.thumbnail,
            allowFullScreen: true,
          ),
        );

      // The file is not downloadable, we open it in the browser
      default:
        return Container(
          color: widget.defaultBackgroundColor,
          child: Center(
            child: MaterialButton(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.center,
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Spacer(flex: 2),
                  Icon(file.icon, color: Colors.white),
                  Spacer(),
                  Text(file.name, textAlign: TextAlign.center),
                  Spacer(),
                  Text(
                    filesize(file.size),
                    style: TextStyle(fontSize: 10),
                  ),
                  Spacer(flex: 2),
                ],
              ),
              onPressed: () => launch(file.url),
            ),
          ),
        );
        break;
    }
  }
}