add some short-circuit methods

lib/src/extensions/activity.dart

@@ -0,0 +1,29 @@
+import 'package:nyxx/nyxx.dart';
+
+const mediaProxyUrl = 'https://media.discordapp.net';
+
+extension ActivityAssetsExtension on Activity {
+  Uri? assetsLargeImageUrl({CdnFormat? format}) {
+    if (assets?.largeImage == null || applicationId == null) {
+      return null;
+    }
+
+    return parseAssetUrl(assets!.largeImage!, applicationId!, format ?? CdnFormat.png);
+  }
+
+  Uri? assetsSmallImageUrl({CdnFormat? format}) {
+    if (assets?.smallImage == null || applicationId == null) {
+      return null;
+    }
+
+    return parseAssetUrl(assets!.smallImage!, applicationId!, format ?? CdnFormat.png);
+  }
+}
+
+Uri parseAssetUrl(String assetUrl, Snowflake applicationId, CdnFormat format) {
+  var isMediaProxy = assetUrl.startsWith('mp:');
+
+  return isMediaProxy
+      ? Uri.parse('$mediaProxyUrl/${assetUrl.substring(3)}')
+      : Uri.https('cdn.discordapp.com', '/app-assets/$applicationId/$assetUrl.${format.extension}');
+}

lib/src/extensions/application.dart

@@ -1,7 +1,8 @@
 import 'package:nyxx/nyxx.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
 
 /// Extensions on [PartialApplication]s.
-extension ApplicationExtensions on PartialApplication {
+extension PartialApplicationExtensions on PartialApplication {
   /// Get a URL users can visit to add this bot to a guild.
   Uri getInviteUri({
     List<String> scopes = const ['bot', 'applications.commands'],
@@ -21,3 +22,11 @@ extension ApplicationExtensions on PartialApplication {
         },
       );
 }
+
+extension ApplicationExtensions on Application {
+  /// The URL of this application's icon image.
+  Uri? iconUrl({CdnFormat? format, int? size}) => icon?.get(format: format, size: size);
+
+  /// The URL of this application's cover image.
+  Uri? coverUrl({CdnFormat? format, int? size}) => coverImage?.get(format: format, size: size);
+}

lib/src/extensions/cdn_asset.dart

@@ -1,6 +1,7 @@
 import 'package:nyxx/nyxx.dart';
 
 extension CdnAssetExtensions on CdnAsset {
+  /// Get the URL for this asset whth the given [format] and [size].
   Uri get({CdnFormat? format, int? size}) => getRequest(this, format ?? defaultFormat, size).prepare(client).url;
 }
 

lib/src/extensions/events/guild.dart

@@ -0,0 +1,6 @@
+import 'package:nyxx/nyxx.dart';
+
+extension GuildDeleteEventExtensions on GuildDeleteEvent {
+  /// Whether the client was removed from the guild, due to a ban or kick.
+  bool get wasRemoved => isUnavailable == false;
+}

lib/src/extensions/guild.dart

@@ -1,5 +1,6 @@
 import 'package:nyxx/nyxx.dart';
 import 'package:nyxx_extensions/src/extensions/managers/guild_manager.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
 
 /// Extensions on [PartialGuild]s.
 extension PartialGuildExtensions on PartialGuild {
@@ -21,4 +22,16 @@ extension GuildExtensions on Guild {
   String get acronym {
     return name.replaceAll(r"'s ", ' ').replaceAllMapped(RegExp(r'\w+'), (match) => match[0]![0]).replaceAll(RegExp(r'\s'), '');
   }
+
+  /// The URL of this guild's icon image.
+  Uri? iconUrl({CdnFormat? format, int? size}) => icon?.get(format: format, size: size);
+
+  /// The URL of this guild's banner image.
+  Uri? bannerUrl({CdnFormat? format, int? size}) => banner?.get(format: format, size: size);
+
+  /// The URL of this guild's splash image.
+  Uri? splashUrl({CdnFormat? format, int? size}) => splash?.get(format: format, size: size);
+
+  /// The URL of this guild's discovery splash image.
+  Uri? discoverySplashUrl({CdnFormat? format, int? size}) => discoverySplash?.get(format: format, size: size);
 }

lib/src/extensions/member.dart

@@ -1,10 +1,31 @@
 import 'package:nyxx/nyxx.dart';
 import 'package:nyxx_extensions/src/utils/permissions.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
 
 /// Extensions on [PartialMember]s.
 extension PartialMemberExtensions on PartialMember {
   /// Compute this member's permissions in [channel].
   ///
   /// {@macro compute_permissions_detail}
   Future<Permissions> computePermissionsIn(GuildChannel channel) async => await computePermissions(channel, await get());
+
+  /// Kick this member from the guild.
+  ///
+  /// External references:
+  ///
+  /// - [MemberManager.delete]
+  /// - Discord API Reference: https://discord.com/developers/docs/resources/guild#remove-guild-member
+  Future<void> kick({String? auditLogReason}) => delete(auditLogReason: auditLogReason);
+}
+
+extension MemberExtensions on Member {
+  /// The URL of this member's avatar image.
+  Uri? avatarUrl({CdnFormat? format, int? size}) => avatar?.get(format: format, size: size);
+
+  /// The URL of this member's banner image.
+  Uri? bannerUrl({CdnFormat? format, int? size}) => banner?.get(format: format, size: size);
+
+  /// The URL of this member's avatar decoration.
+  // Same as in UserExtensions.
+  Uri? get avatarDecorationUrl => avatarDecoration?.get(format: CdnFormat.png);
 }

lib/src/extensions/role.dart

@@ -1,5 +1,6 @@
 import 'package:nyxx/nyxx.dart';
 import 'package:nyxx_extensions/src/utils/formatters.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
 
 /// Extensions on [PartialRole]s.
 extension PartialRoleExtensions on PartialRole {
@@ -29,3 +30,8 @@ extension RoleList on List<Role> {
   /// The roles in this list, sorted from lowest to highest.
   List<Role> get sorted => List.of(this)..sort(compare);
 }
+
+extension RoleExtensions on Role {
+  /// The URL of this role's icon image.
+  Uri? iconUrl({CdnFormat? format, int? size}) => icon?.get(format: format, size: size);
+}

lib/src/extensions/scheduled_event.dart

@@ -1,6 +1,7 @@
 import 'package:nyxx/nyxx.dart';
 import 'package:nyxx_extensions/src/extensions/managers/scheduled_event_manager.dart';
 import 'package:nyxx_extensions/src/utils/endpoint_paginator.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
 
 /// Extensions on [PartialScheduledEvent].
 extension PartialScheduledEventExtensions on PartialScheduledEvent {
@@ -25,3 +26,8 @@ extension PartialScheduledEventExtensions on PartialScheduledEvent {
         withMembers: withMembers,
       );
 }
+
+extension ScheduledEventExtensions on ScheduledEvent {
+  /// The URL of this event's icon image.
+  Uri? coverUrl({CdnFormat? format, int? size}) => coverImage?.get(format: format, size: size);
+}

lib/src/extensions/team.dart

@@ -0,0 +1,7 @@
+import 'package:nyxx/nyxx.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
+
+extension TeamExtensions on Team {
+  /// Returns the URL of the team's icon.
+  Uri? iconUrl({CdnFormat? format, int? size}) => icon?.get(format: format, size: size);
+}

lib/src/extensions/user.dart

@@ -1,4 +1,5 @@
 import 'package:nyxx/nyxx.dart';
+import 'package:nyxx_extensions/src/extensions/cdn_asset.dart';
 import 'package:nyxx_extensions/src/utils/formatters.dart';
 
 /// Extensions on [PartialUser].
@@ -28,3 +29,21 @@ extension PartialUserExtensions on PartialUser {
   /// A mention of this user.
   String get mention => userMention(id);
 }
+
+extension UserExtensions on User {
+  /// The user's unique username, if migrated, else a combination of their username and discriminator.
+  String get tag => discriminator == '0' ? username : '$username#$discriminator';
+
+  /// The URL of this user's avatar image.
+  Uri avatarUrl({CdnFormat? format, int? size}) => avatar.get(format: format, size: size);
+
+  /// The URL of this user's banner image.
+  Uri? bannerUrl({CdnFormat? format, int? size}) => banner?.get(format: format, size: size);
+
+  /// The URL of this user's default avatar image.
+  Uri get defaultAvatarUrl => defaultAvatar.url;
+
+  /// The URL of this user's avatar decoration.
+  // Forcefully add the `.png` extension, otherwise it's converted as a GIF if the hash starts with `a_`, and GIFs are not supported.
+  Uri? get avatarDecorationUrl => avatarDecoration?.get(format: CdnFormat.png);
+}

pubspec.yaml

@@ -10,7 +10,7 @@ environment:
 
 dependencies:
   http: ^1.1.0
-  nyxx: ^6.3.1
+  nyxx: ^6.5.2
 
 dev_dependencies:
   coverage: ^1.0.3