relatica/lib/utils/interaction_availability_util.dart

import '../globals.dart';
import '../models/timeline_entry.dart';
import '../models/timeline_network_info.dart';
import '../models/visibility.dart';
import '../services/setting_service.dart';
import 'known_network_extensions.dart';

class InteractionCapabilityResult {
  final bool canDo;
  final String reason;

  const InteractionCapabilityResult(
      {required this.canDo, required this.reason});
}

extension InteractionAvailabilityExtension on TimelineEntry {
  InteractionCapabilityResult getCanComment() {
    final settingsService = getIt<SettingsService>();
    final nc = settingsService.networkCapabilities
        .getCapabilities(networkInfo.network);

    if (!nc.comment) {
      return InteractionCapabilityResult(
        canDo: false,
        reason:
            "User disabled commenting on ${networkInfo.network.labelName} items. Go into settings to change.",
      );
    }

    return const InteractionCapabilityResult(
      canDo: true,
      reason: "Can comment on item",
    );
  }

  InteractionCapabilityResult getCanReact() {
    final settingsService = getIt<SettingsService>();
    final nc = settingsService.networkCapabilities
        .getCapabilities(networkInfo.network);

    if (!nc.react) {
      return InteractionCapabilityResult(
        canDo: false,
        reason:
            "User disabled reacting on ${networkInfo.network.labelName} items. Go into settings to change.",
      );
    }

    return const InteractionCapabilityResult(
      canDo: true,
      reason: "Can react on item",
    );
  }

  InteractionCapabilityResult getIsReshareable(bool isMine) {
    if (isMine) {
      return const InteractionCapabilityResult(
        canDo: false,
        reason: "Can't reshare your own post",
      );
    }

    if (networkInfo.network == KnownNetworks.bluesky) {
      return const InteractionCapabilityResult(
        canDo: false,
        reason:
            "Resharing of Bluesky posts through the API isn't supported by Friendica.",
      );
    }

    final settingsService = getIt<SettingsService>();
    final nc = settingsService.networkCapabilities
        .getCapabilities(networkInfo.network);

    if (!nc.reshare) {
      return InteractionCapabilityResult(
        canDo: false,
        reason:
            "User disabled resharing ${networkInfo.network.labelName} items. Go into settings to change.",
      );
    }

    if (visibility.type == VisibilityType.public ||
        visibility.type == VisibilityType.unlisted) {
      return const InteractionCapabilityResult(
        canDo: true,
        reason: "Can reshare item",
      );
    }

    return const InteractionCapabilityResult(
      canDo: false,
      reason: "Can't reshare private items",
    );
  }
}