initial commit

fluxer_app/src/utils/invite/GuildInviteActionState.ts

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {GuildFeatures} from '~/Constants';
+import type {Guild, GuildRecord} from '~/records/GuildRecord';
+import type {Invite} from '~/records/MessageRecord';
+import AuthenticationStore from '~/stores/AuthenticationStore';
+import GuildMemberStore from '~/stores/GuildMemberStore';
+import PresenceStore from '~/stores/PresenceStore';
+import {isGuildInvite} from '~/types/InviteTypes';
+
+const normalizeFeatures = (features?: Iterable<string> | null): Array<string> => {
+	if (!features) return [];
+	if (Array.isArray(features)) return features;
+	return Array.from(features);
+};
+
+export interface GuildInviteActionState {
+	guildId: string | null;
+	isMember: boolean;
+	presenceCount: number;
+	memberCount: number;
+	isInvitesDisabled: boolean;
+	features: Array<string>;
+}
+
+export enum GuildInvitePrimaryAction {
+	JoinCommunity = 'join',
+	GoToCommunity = 'go',
+	InvitesDisabled = 'disabled',
+}
+
+export const getGuildInviteActionState = (params: {
+	invite?: Invite | null;
+	guild?: GuildRecord | Guild | null;
+}): GuildInviteActionState => {
+	const inviteGuild = params.invite && isGuildInvite(params.invite) ? params.invite.guild : null;
+	const guildRecord = params.guild ?? inviteGuild ?? null;
+	const guildId = guildRecord?.id ?? null;
+	const currentUserId = AuthenticationStore.currentUserId;
+	const isMember = Boolean(guildId && currentUserId && GuildMemberStore.getMember(guildId, currentUserId));
+	const presenceCount =
+		guildId && isMember
+			? PresenceStore.getPresenceCount(guildId)
+			: params.invite && isGuildInvite(params.invite)
+				? params.invite.presence_count
+				: 0;
+	const memberCount =
+		guildId && isMember
+			? GuildMemberStore.getMemberCount(guildId)
+			: params.invite && isGuildInvite(params.invite)
+				? params.invite.member_count
+				: 0;
+	const features = normalizeFeatures(guildRecord?.features ?? inviteGuild?.features);
+
+	return {
+		guildId,
+		isMember,
+		presenceCount,
+		memberCount,
+		features,
+		isInvitesDisabled: features.includes(GuildFeatures.INVITES_DISABLED),
+	};
+};
+
+export const getGuildInvitePrimaryAction = (state: GuildInviteActionState): GuildInvitePrimaryAction => {
+	if (state.isInvitesDisabled && !state.isMember) {
+		return GuildInvitePrimaryAction.InvitesDisabled;
+	}
+	if (state.isMember) {
+		return GuildInvitePrimaryAction.GoToCommunity;
+	}
+	return GuildInvitePrimaryAction.JoinCommunity;
+};
+
+export const isGuildInviteActionDisabled = (state: GuildInviteActionState): boolean =>
+	state.isInvitesDisabled && !state.isMember;