umbrix/lib/utils/placeholders.dart

import 'package:fluentui_system_icons/fluentui_system_icons.dart';
import 'package:flutter/material.dart';
import 'package:gap/gap.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';

// TODO: improve
class SliverBodyPlaceholder extends HookConsumerWidget {
  const SliverBodyPlaceholder(this.children, {super.key});

  final List<Widget> children;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return SliverFillRemaining(
      hasScrollBody: false,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: children,
      ),
    );
  }
}

class SliverLoadingBodyPlaceholder extends HookConsumerWidget {
  const SliverLoadingBodyPlaceholder({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return const SliverFillRemaining(
      hasScrollBody: false,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [CircularProgressIndicator()],
      ),
    );
  }
}

class SliverErrorBodyPlaceholder extends HookConsumerWidget {
  const SliverErrorBodyPlaceholder(
    this.msg, {
    super.key,
    this.icon = FluentIcons.error_circle_24_regular,
  });

  final String msg;
  final IconData? icon;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    return SliverFillRemaining(
      hasScrollBody: false,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          if (icon != null) ...[
            Icon(icon),
            const Gap(16),
          ],
          Text(msg),
        ],
      ),
    );
  }
}