gotosocial/web/source/settings/lib/form/field-array.tsx
tobi 486585890d
[feature] Move + alias account via settings panel ()
* [feature] Move + alias account via settings panel

* lint

* type a bit more diligently
2024-01-16 18:28:56 +01:00

86 lines
2.1 KiB
TypeScript

/*
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, useMemo } from "react";
import getFormMutations from "./get-form-mutations";
import type {
CreateHookNames,
HookOpts,
FieldArrayInputHook,
HookedForm,
} from "./types";
function parseFields(entries: HookedForm[], length: number): HookedForm[] {
const fields: HookedForm[] = [];
for (let i = 0; i < length; i++) {
if (entries[i] != undefined) {
fields[i] = Object.assign({}, entries[i]);
} else {
fields[i] = {};
}
}
return fields;
}
export default function useFieldArrayInput(
{ name }: CreateHookNames,
{
initialValue,
length = 0,
}: HookOpts,
): FieldArrayInputHook {
const _default: HookedForm[] = Array(length);
const fields = useRef<HookedForm[]>(_default);
const value = useMemo(
() => parseFields(initialValue, length),
[initialValue, length],
);
function hasUpdate() {
return Object.values(fields.current).some((fieldSet) => {
const { updatedFields } = getFormMutations(fieldSet, { changedOnly: true });
return updatedFields.length > 0;
});
}
return {
_default,
name,
Name: "",
value,
ctx: fields.current,
maxLength: length,
hasChanged: hasUpdate,
selectedValues() {
if (hasUpdate()) {
return Object.values(fields.current).map((fieldSet) => {
return getFormMutations(fieldSet, { changedOnly: false }).mutationData;
});
} else {
return [];
}
}
};
}