feat: Implement invitations

lib/core/api.dart

@@ -48,5 +48,7 @@ export '../src/internal/services/intent_service.dart' show Intent;
 export '../src/api/users/premium_type.dart' show PremiumType;
 export '../src/api/users/user_decoration.dart' show UserDecoration;
 export '../src/api/users/user_flags/user_flag_contract.dart' show UserFlagContract;
+export '../src/api/client/client_scope.dart' show ClientScope;
+export '../src/api/client/client_permission.dart' show ClientPermission;
 
 typedef Snowflake = String;

lib/core/events.dart

@@ -46,3 +46,5 @@ export '../src/internal/websockets/events/voice_leave_event.dart';
 export '../src/internal/websockets/events/voice_move_event.dart';
 export '../src/internal/websockets/events/voice_state_update_event.dart';
 export '../src/internal/websockets/events/webhook_update_event.dart';
+export '../src/internal/websockets/events/invite_create_event.dart';
+export '../src/internal/websockets/events/invite_delete_event.dart';

lib/src/api/client/client_permission.dart

@@ -0,0 +1,48 @@
+enum ClientPermission {
+  createInstantInvite(1 << 0),
+  kickMembers(1 << 1),
+  banMembers(1 << 2),
+  administrator(1 << 3),
+  manageChannels(1 << 4),
+  manageGuilds(1 << 5),
+  addReactions(1 << 6),
+  viewAuditChannel(1 << 7),
+  prioritySpeaker(1 << 8),
+  stream(1 << 9),
+  viewChannel(1 << 10),
+  sendMessages(1 << 11),
+  sendTtsMessage(1 << 12),
+  manageMessages(1 << 13),
+  embedLinks(1 << 14),
+  attachFiles(1 << 15),
+  readMessageHistory(1 << 16),
+  mentionEveryone(1 << 17),
+  useExternalEmojis(1 << 18),
+  viewGuildInsights(1 << 19),
+  connect(1 << 20),
+  speak(1 << 21),
+  muteMembers(1 << 22),
+  deafenMembers(1 << 23),
+  moveMembers(1 << 24),
+  useVad(1 << 25),
+  changeUsername(1 << 26),
+  managerUsernames(1 << 27),
+  manageRoles(1 << 28),
+  manageWebhooks(1 << 29),
+  manageEmojisAndStickers(1 << 30),
+  useApplicationCommand(1 << 31),
+  requestToSpeak(1 << 32),
+  manageEvents(1 << 33),
+  manageThreads(1 << 34),
+  usePublicThreads(1 << 35),
+  createPublicThreads(1 << 35),
+  usePrivateThreads(1 << 36),
+  createPrivateThreads(1 << 36),
+  useExternalStickers(1 << 37),
+  sendMessageInThreads(1 << 38),
+  startEmbeddedActivities(1 << 39),
+  moderateMembers(1 << 40);
+
+  final int value;
+  const ClientPermission(this.value);
+}

lib/src/api/client/client_scope.dart

@@ -0,0 +1,33 @@
+enum ClientScope {
+  activitiesRead('activities.read'),
+  activitiesWrite('activities.write'),
+  applicationBuildsRead('applications.builds.read'),
+  applicationBuildsUpload('applications.builds.upload'),
+  applicationsCommands('applications.commands'),
+  applicationsCommandsUpdate('applications.commands.update'),
+  applicationsCommandsPermissionsUpdate('applications.commands.permissions.update'),
+  applicationEntitlements('applications.entitlements'),
+  applicationsStoreUpdate('applications.store.update'),
+  bot('bot'),
+  connections('connections'),
+  dmChannelsRead('dm_channels.read'),
+  email('email'),
+  gdmJoin('gdm.join'),
+  guilds('guilds'),
+  guildsJoin('guilds.join'),
+  guildsMembersRead('guilds.members.read'),
+  identify('identify'),
+  messagesRead('messages.read'),
+  relationships('relationships.read'),
+  roleConnectionsWrite('role_connections.write'),
+  rpc('rpc'),
+  rpcActivitiesWrite('rpc.activities.write'),
+  rpcNotificationsRead('rpc.notifications.read'),
+  rpcVoiceRead('rpc.voice.read'),
+  rpcVoiceWrite('rpc.voice.write'),
+  voice('voice'),
+  webhookIncoming('webhook.incoming');
+
+  final String value;
+  const ClientScope(this.value);
+}

lib/src/api/client/mineral_client.dart

@@ -132,6 +132,21 @@ class MineralClient extends MineralService {
       .build();
   }
 
+  Uri createInvitation ({ List<ClientPermission> permissions = const [], List<ClientScope> scope = const [] }) {
+    int _permissions = permissions.fold(0, (acc, element) => acc += element.value);
+
+    return Uri(
+      host: 'discord.com',
+      scheme: 'https',
+      path: '/api/oauth2/authorize',
+      queryParameters: {
+        'client_id': user.id,
+        'permissions': _permissions.toString(),
+        'scope': scope.map((scope) => scope.value).join(' ')
+      }
+    );
+  }
+
   factory MineralClient.from({ required dynamic payload }) {
     return MineralClient(
       User.from(payload['user']),

lib/src/api/guilds/guild.dart

@@ -9,6 +9,7 @@ import 'package:mineral/framework.dart';
 import 'package:mineral/src/api/managers/channel_manager.dart';
 import 'package:mineral/src/api/managers/command_manager.dart';
 import 'package:mineral/src/api/managers/emoji_manager.dart';
+import 'package:mineral/src/api/managers/guild_invite_manager.dart';
 import 'package:mineral/src/api/managers/guild_role_manager.dart';
 import 'package:mineral/src/api/managers/guild_scheduled_event_manager.dart';
 import 'package:mineral/src/api/managers/guild_webhook_manager.dart';
@@ -94,6 +95,7 @@ class Guild {
   GuildWebhookManager _webhooks;
   GuildScheduledEventService _scheduledEvents;
   CommandService _commands;
+  GuildInviteManager _invites;
 
   Guild(
     this._id,
@@ -141,6 +143,7 @@ class Guild {
     this._webhooks,
     this._scheduledEvents,
     this._commands,
+    this._invites,
   );
 
   Snowflake get id => _id;
@@ -189,6 +192,7 @@ class Guild {
   GuildScheduledEventService get scheduledEvents => _scheduledEvents;
   Map<Snowflake, GuildMember> get bots => _members.cache.where((element) => element.isBot);
   CommandService get commands => _commands;
+  GuildInviteManager get invites => _invites;
 
   /// ### Modifies the [name] of this.
   ///
@@ -674,6 +678,7 @@ class Guild {
       GuildWebhookManager.fromManager(webhookManager: webhookManager),
       guildScheduledEventService,
       CommandService(payload['id']),
+      GuildInviteManager(payload['id'])
     );
   }
 }

lib/src/api/invites/invite.dart

@@ -0,0 +1,98 @@
+import 'package:mineral/core.dart';
+import 'package:mineral/core/api.dart';
+import 'package:mineral/framework.dart';
+import 'package:mineral/src/api/invites/invite_target_type.dart';
+import 'package:mineral/src/api/invites/wrapped_inviter.dart';
+import 'package:mineral_ioc/ioc.dart';
+
+class Invite {
+  final int _type;
+  final int _uses;
+  final bool _temporary;
+  final int _maxUses;
+  final int _maxAge;
+  final Snowflake? _inviterId;
+  final Snowflake? _targetUserId;
+  final Snowflake? _guildId;
+  final String? _expiresAt;
+  final String _createdAt;
+  final String _code;
+  final Snowflake? _channelId;
+  final int? _targetType;
+
+  Invite(
+    this._type,
+    this._uses,
+    this._temporary,
+    this._maxUses,
+    this._maxAge,
+    this._inviterId,
+    this._targetUserId,
+    this._guildId,
+    this._expiresAt,
+    this._createdAt,
+    this._code,
+    this._channelId,
+    this._targetType,
+  );
+
+  Guild get guild => ioc.use<MineralClient>().guilds.cache.getOrFail(_guildId);
+
+  int get type => _type;
+
+  int get uses => _uses;
+
+  bool get isTemporary => _temporary;
+
+  int get maxUses => _maxUses;
+
+  DateTime get maxAge => DateTime.fromMillisecondsSinceEpoch(_maxAge);
+
+  DateTime? get expiresAt => _expiresAt != null
+    ? DateTime.parse(_expiresAt!)
+    : null;
+
+  DateTime get createdAt => DateTime.parse(_createdAt);
+
+  String get code => _code;
+
+  GuildChannel? get channel => guild.channels.cache.get(_channelId);
+
+  InviteTargetType get targetType => InviteTargetType.values.firstWhere((element) => element.value == _targetType);
+
+  WrappedInviter? getInviter () => _inviterId != null && _guildId != null
+    ? WrappedInviter(_guildId!, _inviterId!)
+    : null;
+
+  Future<User>? getTargetUser () => _targetUserId != null
+    ? ioc.use<MineralClient>().users.resolve(_targetUserId!)
+    : null;
+
+  String get url => '${Constants.discordInviteHost}/$_code';
+
+  Future<void> delete ({ String? reason }) async {
+    await ioc.use<DiscordApiHttpService>()
+      .destroy(url: '/invites/$_code')
+      .auditLog(reason)
+      .build();
+  }
+
+  @override
+  String toString () => url;
+
+  factory Invite.from(dynamic payload) => Invite(
+    payload['type'],
+    payload['uses'],
+    payload['temporary'],
+    payload['max_uses'],
+    payload['max_age'],
+    payload['inviter']?['id'],
+    payload['target_user']?['id'],
+    payload['guild_id'],
+    payload['expires_at'],
+    payload['created_at'],
+    payload['code'],
+    payload['channel_id'],
+    payload['target_type']
+  );
+}

lib/src/api/invites/invite_target_type.dart

@@ -0,0 +1,7 @@
+enum InviteTargetType {
+  stream(1),
+  embeddedApplication(2);
+
+  final int value;
+  const InviteTargetType(this.value);
+}

lib/src/api/invites/wrapped_inviter.dart

@@ -0,0 +1,16 @@
+import 'package:mineral/core/api.dart';
+import 'package:mineral/framework.dart';
+import 'package:mineral_ioc/ioc.dart';
+
+class WrappedInviter {
+  final Snowflake _guildId;
+  final Snowflake _userId;
+
+  WrappedInviter(this._guildId, this._userId);
+
+  GuildMember? toMember () => ioc.use<MineralClient>().guilds.cache
+    .get(_guildId)?.members.cache
+    .get(_userId);
+
+  Future<User> toUser () async => await ioc.use<MineralClient>().users.resolve(_userId);
+}

lib/src/api/managers/guild_invite_manager.dart

@@ -0,0 +1,48 @@
+import 'dart:convert';
+
+import 'package:http/http.dart';
+import 'package:mineral/core.dart';
+import 'package:mineral/core/api.dart';
+import 'package:mineral/exception.dart';
+import 'package:mineral/framework.dart';
+import 'package:mineral/src/api/invites/invite.dart';
+import 'package:mineral/src/api/managers/cache_manager.dart';
+import 'package:mineral_ioc/ioc.dart';
+
+class GuildInviteManager extends CacheManager<Invite>  {
+  final Snowflake? _guildId;
+
+  GuildInviteManager(this._guildId);
+
+  Future<Map<String, Invite>> sync () async {
+    Response response = await ioc.use<DiscordApiHttpService>()
+      .get(url: '/guilds/$_guildId/invites')
+      .build();
+
+    for (dynamic element in jsonDecode(response.body)) {
+      Invite invite = Invite.from(element);
+      cache.set(invite.code, invite);
+    }
+
+    return cache;
+  }
+
+  Future<Invite> resolve (Snowflake id) async {
+    if(cache.containsKey(id)) {
+      return cache.getOrFail(id);
+    }
+
+    final Response response = await ioc.use<DiscordApiHttpService>()
+      .get(url: '/webhooks/$id')
+      .build();
+
+    if(response.statusCode == 200) {
+      final Invite invite = Invite.from(jsonDecode(response.body));
+
+      cache.putIfAbsent(invite.code, () => invite);
+      return invite;
+    }
+
+    throw ApiException('Unable to fetch invite with code #$id');
+  }
+}

lib/src/api/managers/guild_role_manager.dart

@@ -56,7 +56,7 @@ class GuildRoleManager extends CacheManager<Role>  {
   ///   hoist: true,
   /// );
   /// ```
-  Future<Role> create ({ required String label, Color? color, bool? hoist, String? icon, String? unicode, bool? mentionable, List<Permission>? permissions }) async {
+  Future<Role> create ({ required String label, Color? color, bool? hoist, String? icon, String? unicode, bool? mentionable, List<ClientPermission>? permissions }) async {
     if ((icon != null || unicode != null) && !guild.features.contains(GuildFeature.roleIcons)) {
       throw MissingFeatureException("Guild ${guild.name} has no 'ROLE_ICONS' feature.");
     }

lib/src/api/managers/user_manager.dart

@@ -25,6 +25,6 @@ class UserManager extends CacheManager<User> {
       return user;
     }
 
-    throw ApiException('Unable to fetch channel with id #$id');
+    throw ApiException('Unable to fetch user with id #$id');
   }
 }

lib/src/api/permission_overwrite.dart

@@ -13,8 +13,8 @@ enum PermissionOverwriteType {
 class PermissionOverwrite {
   Snowflake id;
   PermissionOverwriteType type;
-  List<Permission>? allow;
-  List<Permission>? deny;
+  List<ClientPermission>? allow;
+  List<ClientPermission>? deny;
 
   PermissionOverwrite({
     required this.id,

lib/src/api/role.dart

@@ -82,7 +82,7 @@ class Role {
   ///   await role.setPermissions([Permission.kickMembers, Permission.banMembers]);
   /// }
   ///
-  Future<void> setPermissions (List<Permission> permissions, { String? reason }) async {
+  Future<void> setPermissions (List<ClientPermission> permissions, { String? reason }) async {
 
     int _permissions = Helper.reduceRolePermissions(permissions);
     Response response = await ioc.use<DiscordApiHttpService>().patch(url: "/guilds/${manager.guild.id}/roles/$id")