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// Copyright (C) 2026 Max Boksem. See NOTICE for additional terms under GPLv3 section 7.
import { useState, useEffect, useCallback, useMemo } from "react";
import {
getGroupHierarchy,
getPinnedGroups,
pinGroup as pinGroupApi,
unpinGroup as unpinGroupApi,
} from "@/lib/tauri";
import { superCategoryNames } from "@/lib/group-hierarchy";
import type { GroupHierarchyEntry, PinnedGroup } from "@/lib/types";
export const useGroupHierarchy = (providerId: string | null, contentType: string) => {
const [entries, setEntries] = useState<GroupHierarchyEntry[]>([]);
const [pinnedGroups, setPinnedGroups] = useState<PinnedGroup[]>([]);
const [loaded, setLoaded] = useState(false);
const load = useCallback(async () => {
if (!providerId) return;
return Promise.all([
getGroupHierarchy(providerId, contentType),
getPinnedGroups(providerId, contentType),
])
.then(([h, p]) => {
setEntries(h);
setPinnedGroups(p);
})
.catch((err) => console.error("Failed to load group hierarchy:", err))
.finally(() => setLoaded(true));
}, [providerId, contentType]);
useEffect(() => {
load();
}, [load]);
const superCategories = useMemo(() => superCategoryNames(entries), [entries]);
const topLevelGroups = useMemo(
() => entries.filter((e) => !e.superCategory).map((e) => e.groupName),
[entries]
);
const getGroupsForCategory = useCallback(
(category: string) =>
entries.filter((e) => e.superCategory === category).map((e) => e.groupName),
[entries]
);
const hasHierarchy = superCategories.length > 0;
const pinGroup = useCallback(
async (groupName: string) => {
if (!providerId) return;
const nextOrder =
pinnedGroups.length > 0 ? pinnedGroups[pinnedGroups.length - 1].sortOrder + 100 : 0;
await pinGroupApi(providerId, contentType, groupName, nextOrder);
await load();
},
[providerId, contentType, pinnedGroups, load]
);
const unpinGroup = useCallback(
async (groupName: string) => {
if (!providerId) return;
await unpinGroupApi(providerId, contentType, groupName);
await load();
},
[providerId, contentType, load]
);
const isPinned = useCallback(
(groupName: string) => pinnedGroups.some((p) => p.groupName === groupName),
[pinnedGroups]
);
return {
entries,
pinnedGroups,
loaded,
superCategories,
topLevelGroups,
hasHierarchy,
getGroupsForCategory,
pinGroup,
unpinGroup,
isPinned,
reload: load,
};
};
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