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/*
GoToSocial
Copyright (C) GoToSocial Authors admin@gotosocial.org
SPDX-License-Identifier: AGPL-3.0-or-later
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
import {
useRef,
useEffect,
useCallback,
useMemo,
} from "react";
import type {
Checkable,
ChecklistInputHook,
CreateHookNames,
HookOpts,
} from "./types";
import {
useChecklistReducer,
actions,
} from "../../redux/checklist";
const _default: { [k: string]: Checkable } = {};
export default function useCheckListInput(
/* eslint-disable no-unused-vars */
{ name, Name }: CreateHookNames,
{
entries = [],
uniqueKey = "key",
initialValue = false,
}: HookOpts<boolean>
): ChecklistInputHook {
const [state, dispatch] = useChecklistReducer(entries, uniqueKey, initialValue);
const toggleAllRef = useRef<any>(null);
useEffect(() => {
if (toggleAllRef.current != null) {
let some = state.selectedEntries.size > 0;
let all = false;
if (some) {
all = state.selectedEntries.size == Object.values(state.entries).length;
}
toggleAllRef.current.checked = all;
toggleAllRef.current.indeterminate = some && !all;
}
// only needs to update when state.selectedEntries changes, not state.entries
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [state.selectedEntries]);
const reset = useCallback(
() => dispatch(actions.updateAll(initialValue)),
[initialValue, dispatch]
);
const onChange = useCallback(
(key: string, value: Checkable) => dispatch(actions.update({ key, value })),
[dispatch]
);
const updateMultiple = useCallback(
(entries: [key: string, value: Partial<Checkable>][]) => dispatch(actions.updateMultiple(entries)),
[dispatch]
);
return useMemo(() => {
function toggleAll(e) {
let checked = e.target.checked;
if (e.target.indeterminate) {
checked = false;
}
dispatch(actions.updateAll(checked));
}
function selectedValues() {
return Array.from((state.selectedEntries)).map((key) => ({
...state.entries[key] // returned as new object, because reducer state is immutable
}));
}
return Object.assign([
state,
reset,
{ name }
], {
_default,
hasChanged: () => true,
name,
Name: "",
value: state.entries,
onChange,
selectedValues,
reset,
someSelected: state.selectedEntries.size > 0,
updateMultiple,
toggleAll: {
ref: toggleAllRef,
onChange: toggleAll
}
});
}, [state, reset, name, onChange, updateMultiple, dispatch]);
}
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