part of "../chat_widget.dart";

class LinkPreviw extends StatefulWidget {
  final String link;
  final AsyncSnapshot snapshot;
  const LinkPreviw({
    super.key,
    required this.snapshot,
    required this.link,
  });

  @override
  State<LinkPreviw> createState() => _LinkPreviwState();
}

class _LinkPreviwState extends State<LinkPreviw> {
  final ValueNotifier<bool> _errorChecker = ValueNotifier<bool>(false);

  @override
  void dispose() {
    _errorChecker.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () async {
        await launchUrl(Uri.parse(widget.link),
            mode: LaunchMode.externalApplication);
      },
      child: Container(
        clipBehavior: Clip.antiAlias,
        decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(4),
            color: context.color.tertiaryColor),
        child: Padding(
          padding: const EdgeInsets.all(3.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              ValueListenableBuilder(
                  valueListenable: _errorChecker,
                  builder: (context, value, child) {
                    if (value == true) {
                      return const SizedBox.shrink();
                    }

                    return AspectRatio(
                      aspectRatio: 1 / 0.5,
                      child: Image.network(
                        (widget.snapshot.data as Metadata).image!,
                        fit: BoxFit.cover,
                        errorBuilder: (context, error, stackTrace) {
                          WidgetsBinding.instance
                              .addPostFrameCallback((timeStamp) {
                            _errorChecker.value = true;
                          });
                          return const SizedBox.shrink();
                        },
                      ),
                    );
                  }),
              Text((widget.snapshot.data as Metadata).title ?? "")
                  .color(context.color.primaryColor.withOpacity(0.9))
                  .size(context.font.small),
              Text((widget.snapshot.data as Metadata).desc ?? "")
                  .setMaxLines(lines: 1)
                  .color(context.color.primaryColor.withOpacity(0.8))
                  .size(context.font.smaller)
            ],
          ),
        ),
      ),
    );
  }
}