[feature] Allow import/export/creation of domain allows via admin panel (#2264)

* it's happening!

* aaa

* fix silly whoopsie

* it's working pa! it's working ma!

* model report parameters

* shuffle some more stuff around

* getting there

* oo hoo

* finish tidying up for now

* aaa

* fix use form submit errors

* peepee poo poo

* aaaaa

* ffff

* they see me typin', they hatin'

* boop

* aaa

* oooo

* typing typing tappa tappa

* almost done typing

* weee

* alright

* push it push it real good doo doo doo doo doo doo

* thingy no worky

* almost done

* mutation modifers not quite right

* hmm

* it works

* view blocks + allows nicely

* it works!

* typia install

* the old linterino

* linter plz

web/source/settings/lib/form/check-list.tsx

@@ -0,0 +1,219 @@
+/*
+	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 {
+	useReducer,
+	useRef,
+	useEffect,
+	useCallback,
+	useMemo,
+} from "react";
+
+import { PayloadAction, createSlice } from "@reduxjs/toolkit";
+
+import type {
+	Checkable,
+	ChecklistInputHook,
+	CreateHookNames,
+	HookOpts,
+} from "./types";
+
+// https://immerjs.github.io/immer/installation#pick-your-immer-version
+import { enableMapSet } from "immer";
+enableMapSet();
+
+interface ChecklistState {
+	entries: { [k: string]: Checkable },
+	selectedEntries: Set<string>,
+}
+
+const initialState: ChecklistState = {
+	entries: {},
+	selectedEntries: new Set(),
+};
+
+const { reducer, actions } = createSlice({
+	name: "checklist",
+	initialState, // not handled by slice itself
+	reducers: {
+		updateAll: (state, { payload: checked }: PayloadAction<boolean>) => {
+			const selectedEntries = new Set<string>();
+			const entries = Object.fromEntries(
+				Object.values(state.entries).map((entry) => {
+					if (checked) {
+						// Cheekily add this to selected
+						// entries while we're here.
+						selectedEntries.add(entry.key);
+					}
+
+					return [entry.key, { ...entry, checked } ];
+				})
+			);
+			
+			return { entries, selectedEntries };
+		},
+		update: (state, { payload: { key, value } }: PayloadAction<{key: string, value: Checkable}>) => {
+			if (value.checked !== undefined) {
+				if (value.checked === true) {
+					state.selectedEntries.add(key);
+				} else {
+					state.selectedEntries.delete(key);
+				}
+			}
+
+			state.entries[key] = {
+				...state.entries[key],
+				...value
+			};
+		},
+		updateMultiple: (state, { payload }: PayloadAction<Array<[key: string, value: Checkable]>>) => {
+			payload.forEach(([key, value]) => {
+				if (value.checked !== undefined) {
+					if (value.checked === true) {
+						state.selectedEntries.add(key);
+					} else {
+						state.selectedEntries.delete(key);
+					}
+				}
+
+				state.entries[key] = {
+					...state.entries[key],
+					...value
+				};
+			});
+		}
+	}
+});
+
+function initialHookState({
+	entries,
+	uniqueKey,
+	initialValue,
+}: {
+	entries: Checkable[],
+	uniqueKey: string,
+	initialValue: boolean,
+}): ChecklistState {
+	const selectedEntries = new Set<string>();
+	const mappedEntries = Object.fromEntries(
+		entries.map((entry) => {
+			const key = entry[uniqueKey];
+			const checked = entry.checked ?? initialValue;
+			
+			if (checked) {
+				selectedEntries.add(key);
+			} else {
+				selectedEntries.delete(key);
+			}
+		
+			return [ key, { ...entry, key, checked } ];
+		})
+	);
+
+	return {
+		entries: mappedEntries,
+		selectedEntries
+	};
+}
+
+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] = useReducer(
+		reducer,
+		initialState,
+		(_) => initialHookState({ entries, uniqueKey, initialValue }) // initial state
+	);
+
+	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]
+	);
+
+	const onChange = useCallback(
+		(key, value) => dispatch(actions.update({ key, value })),
+		[]
+	);
+
+	const updateMultiple = useCallback(
+		(entries) => dispatch(actions.updateMultiple(entries)),
+		[]
+	);
+
+	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]);
+}