Implement new model, hooks and reconcilation code for new GYU notification settings

src/hooks/useAsyncRefreshMemo.ts

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { DependencyList, useCallback, useEffect, useState } from "react";
+
+type Fn<T> = () => Promise<T>;
+
+/**
+ * Works just like useMemo or our own useAsyncMemo, but additionally exposes a method to refresh the cached value
+ * as if the dependency had changed
+ * @param fn function to memoize
+ * @param deps React hooks dependencies for the function
+ * @param initialValue initial value
+ * @return tuple of cached value and refresh callback
+ */
+export function useAsyncRefreshMemo<T>(fn: Fn<T>, deps: DependencyList, initialValue: T): [T, () => void];
+export function useAsyncRefreshMemo<T>(fn: Fn<T>, deps: DependencyList, initialValue?: T): [T | undefined, () => void];
+export function useAsyncRefreshMemo<T>(fn: Fn<T>, deps: DependencyList, initialValue?: T): [T | undefined, () => void] {
+    const [value, setValue] = useState<T | undefined>(initialValue);
+    const refresh = useCallback(() => {
+        let discard = false;
+        fn()
+            .then((v) => {
+                if (!discard) {
+                    setValue(v);
+                }
+            })
+            .catch((err) => console.error(err));
+        return () => {
+            discard = true;
+        };
+    }, deps); // eslint-disable-line react-hooks/exhaustive-deps
+    useEffect(refresh, [refresh]);
+    return [value, refresh];
+}

src/hooks/useNotificationSettings.tsx

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { IPushRules, MatrixClient } from "matrix-js-sdk/src/matrix";
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+
+import { NotificationSettings } from "../models/notificationsettings/NotificationSettings";
+import { PushRuleDiff } from "../models/notificationsettings/PushRuleDiff";
+import { reconcileNotificationSettings } from "../models/notificationsettings/reconcileNotificationSettings";
+import { toNotificationSettings } from "../models/notificationsettings/toNotificationSettings";
+
+async function applyChanges(cli: MatrixClient, changes: PushRuleDiff): Promise<void> {
+    await Promise.all(changes.deleted.map((change) => cli.deletePushRule("global", change.kind, change.rule_id)));
+    await Promise.all(changes.added.map((change) => cli.addPushRule("global", change.kind, change.rule_id, change)));
+    await Promise.all(
+        changes.updated.map(async (change) => {
+            if (change.enabled !== undefined) {
+                await cli.setPushRuleEnabled("global", change.kind, change.rule_id, change.enabled);
+            }
+            if (change.actions !== undefined) {
+                await cli.setPushRuleActions("global", change.kind, change.rule_id, change.actions);
+            }
+        }),
+    );
+}
+
+type UseNotificationSettings = {
+    model: NotificationSettings | null;
+    hasPendingChanges: boolean;
+    reconcile: (model: NotificationSettings) => void;
+};
+
+export function useNotificationSettings(cli: MatrixClient): UseNotificationSettings {
+    const supportsIntentionalMentions = useMemo(() => cli.supportsIntentionalMentions(), [cli]);
+
+    const pushRules = useRef<IPushRules | null>(null);
+    const [model, setModel] = useState<NotificationSettings | null>(null);
+    const [hasPendingChanges, setPendingChanges] = useState<boolean>(false);
+    const updatePushRules = useCallback(async () => {
+        const rules = await cli.getPushRules();
+        const model = toNotificationSettings(rules, supportsIntentionalMentions);
+        const pendingChanges = reconcileNotificationSettings(rules, model, supportsIntentionalMentions);
+        pushRules.current = rules;
+        setPendingChanges(
+            pendingChanges.updated.length > 0 || pendingChanges.added.length > 0 || pendingChanges.deleted.length > 0,
+        );
+        setModel(model);
+    }, [cli, supportsIntentionalMentions]);
+
+    useEffect(() => {
+        updatePushRules().catch((err) => console.error(err));
+    }, [cli, updatePushRules]);
+
+    const reconcile = useCallback(
+        (model: NotificationSettings) => {
+            if (pushRules.current !== null) {
+                setModel(model);
+                const changes = reconcileNotificationSettings(pushRules.current, model, supportsIntentionalMentions);
+                applyChanges(cli, changes)
+                    .then(updatePushRules)
+                    .catch((err) => console.error(err));
+            }
+        },
+        [cli, updatePushRules, supportsIntentionalMentions],
+    );
+
+    return { model, hasPendingChanges, reconcile };
+}

src/hooks/usePushers.ts

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { IPusher, MatrixClient } from "matrix-js-sdk/src/matrix";
+
+import { useAsyncRefreshMemo } from "./useAsyncRefreshMemo";
+
+export function usePushers(client: MatrixClient): [IPusher[], () => void] {
+    return useAsyncRefreshMemo<IPusher[]>(() => client.getPushers().then((it) => it.pushers), [client], []);
+}

src/hooks/useThreepids.ts

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { MatrixClient } from "matrix-js-sdk/src/matrix";
+import { IThreepid } from "matrix-js-sdk/src/@types/threepids";
+
+import { useAsyncRefreshMemo } from "./useAsyncRefreshMemo";
+
+export function useThreepids(client: MatrixClient): [IThreepid[], () => void] {
+    return useAsyncRefreshMemo<IThreepid[]>(() => client.getThreePids().then((it) => it.threepids), [client], []);
+}

src/models/notificationsettings/NotificationSettings.ts

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { RoomNotifState } from "../../RoomNotifs";
+
+export type RoomDefaultNotificationLevel = RoomNotifState.AllMessages | RoomNotifState.MentionsOnly;
+
+export type NotificationSettings = {
+    globalMute: boolean;
+    defaultLevels: {
+        room: RoomDefaultNotificationLevel;
+        dm: RoomDefaultNotificationLevel;
+    };
+    sound: {
+        people: string | undefined;
+        mentions: string | undefined;
+        calls: string | undefined;
+    };
+    activity: {
+        invite: boolean;
+        status_event: boolean;
+        bot_notices: boolean;
+    };
+    mentions: {
+        user: boolean;
+        keywords: boolean;
+        room: boolean;
+    };
+    keywords: string[];
+};
+
+export const DefaultNotificationSettings: NotificationSettings = {
+    globalMute: false,
+    defaultLevels: {
+        room: RoomNotifState.AllMessages,
+        dm: RoomNotifState.AllMessages,
+    },
+    sound: {
+        people: "default",
+        mentions: "default",
+        calls: "ring",
+    },
+    activity: {
+        invite: true,
+        status_event: false,
+        bot_notices: true,
+    },
+    mentions: {
+        user: true,
+        room: true,
+        keywords: true,
+    },
+    keywords: [],
+};

src/models/notificationsettings/PushRuleDiff.ts

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { IAnnotatedPushRule, PushRuleAction, PushRuleKind, RuleId } from "matrix-js-sdk/src/matrix";
+
+export type PushRuleDiff = {
+    updated: PushRuleUpdate[];
+    added: IAnnotatedPushRule[];
+    deleted: PushRuleDeletion[];
+};
+
+export type PushRuleDeletion = {
+    rule_id: RuleId | string;
+    kind: PushRuleKind;
+};
+
+export type PushRuleUpdate = {
+    rule_id: RuleId | string;
+    kind: PushRuleKind;
+    enabled?: boolean;
+    actions?: PushRuleAction[];
+};

src/models/notificationsettings/PushRuleMap.ts

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+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { IAnnotatedPushRule, IPushRules, PushRuleKind, RuleId } from "matrix-js-sdk/src/matrix";
+
+export type PushRuleMap = Map<RuleId | string, IAnnotatedPushRule>;
+
+export function buildPushRuleMap(rulesets: IPushRules): PushRuleMap {
+    const rules = new Map<RuleId | string, IAnnotatedPushRule>();
+
+    for (const kind of Object.values(PushRuleKind)) {
+        for (const rule of rulesets.global[kind] ?? []) {
+            if (rule.rule_id.startsWith(".")) {
+                rules.set(rule.rule_id, { ...rule, kind });
+            }
+        }
+    }
+
+    return rules;
+}