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fluxer_app/src/stores/LocalPresenceStore.tsx

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+/*
+ * 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 {makeAutoObservable} from 'mobx';
+import type {StatusType} from '~/Constants';
+import {StatusTypes} from '~/Constants';
+import {
+	type CustomStatus,
+	customStatusToKey,
+	type GatewayCustomStatusPayload,
+	normalizeCustomStatus,
+	toGatewayCustomStatus,
+} from '~/lib/customStatus';
+import IdleStore from '~/stores/IdleStore';
+import MobileLayoutStore from '~/stores/MobileLayoutStore';
+import UserSettingsStore from '~/stores/UserSettingsStore';
+
+type Presence = Readonly<{
+	status: StatusType;
+	since: number;
+	afk: boolean;
+	mobile: boolean;
+	custom_status: GatewayCustomStatusPayload | null;
+}>;
+
+class LocalPresenceStore {
+	status: StatusType = StatusTypes.ONLINE;
+
+	since: number = 0;
+
+	customStatus: CustomStatus | null = null;
+
+	constructor() {
+		makeAutoObservable(this, {}, {autoBind: true});
+	}
+
+	updatePresence(): void {
+		const userStatus = UserSettingsStore.status;
+		const idleSince = IdleStore.getIdleSince();
+
+		const effectiveStatus = userStatus === StatusTypes.ONLINE && idleSince > 0 ? StatusTypes.IDLE : userStatus;
+
+		const normalizedCustomStatus = normalizeCustomStatus(UserSettingsStore.getCustomStatus());
+		this.customStatus = normalizedCustomStatus ? {...normalizedCustomStatus} : null;
+		this.status = effectiveStatus;
+		this.since = idleSince;
+	}
+
+	getStatus(): StatusType {
+		return this.status;
+	}
+
+	getPresence(): Presence {
+		const isMobile = MobileLayoutStore.isMobileLayout();
+		const idleSince = IdleStore.getIdleSince();
+		const afkTimeout = UserSettingsStore.getAfkTimeout();
+
+		const timeSinceLastActivity = idleSince > 0 ? Date.now() - idleSince : 0;
+		const afk = !isMobile && timeSinceLastActivity > afkTimeout * 1000;
+
+		return {
+			status: this.status,
+			since: this.since,
+			afk,
+			mobile: isMobile,
+			custom_status: toGatewayCustomStatus(this.customStatus),
+		};
+	}
+
+	get presenceFingerprint(): string {
+		return `${this.status}|${customStatusToKey(this.customStatus)}`;
+	}
+}
+
+export default new LocalPresenceStore();