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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 React, { useMemo } from "react";
import {
InteractionPolicyValue,
PolicyValueAuthor,
PolicyValueFollowers,
PolicyValueMentioned,
PolicyValuePublic,
} from "../../../../lib/types/interaction";
import { useTextInput } from "../../../../lib/form";
import { Action, BasicValue, PolicyFormSub, Visibility } from "./types";
// Based on the given visibility, action, and states,
// derives what the initial basic Select value should be.
function useBasicValue(
forVis: Visibility,
forAction: Action,
always: InteractionPolicyValue[],
withApproval: InteractionPolicyValue[],
): BasicValue {
// Check if "always" value is just the author
// (and possibly mentioned accounts when dealing
// with replies -- still counts as "just_me").
const alwaysJustAuthor = useMemo(() => {
if (
always.length === 1 &&
always[0] === PolicyValueAuthor
) {
return true;
}
if (
forAction === "reply" &&
always.length === 2 &&
always.includes(PolicyValueAuthor) &&
always.includes(PolicyValueMentioned)
) {
return true;
}
return false;
}, [forAction, always]);
// Check if "always" includes the widest
// possible audience for this visibility.
const alwaysWidestAudience = useMemo(() => {
return (
(forVis === "private" && always.includes(PolicyValueFollowers)) ||
always.includes(PolicyValuePublic)
);
}, [forVis, always]);
// Check if "withApproval" includes the widest
// possible audience for this visibility.
const withApprovalWidestAudience = useMemo(() => {
return (
(forVis === "private" && withApproval.includes(PolicyValueFollowers)) ||
withApproval.includes(PolicyValuePublic)
);
}, [forVis, withApproval]);
return useMemo(() => {
// Simplest case: if "always" includes the
// widest possible audience for this visibility,
// then we don't need to check anything else.
if (alwaysWidestAudience) {
return "anyone";
}
// Next simplest case: there's no "with approval"
// URIs set, so check if it's always just author.
if (withApproval.length === 0 && alwaysJustAuthor) {
return "just_me";
}
// Third simplest case: always is just us, and with
// approval is addressed to the widest possible audience.
if (alwaysJustAuthor && withApprovalWidestAudience) {
return "anyone_with_approval";
}
// We've exhausted the
// simple possibilities.
return "something_else";
}, [
withApproval.length,
alwaysJustAuthor,
alwaysWidestAudience,
withApprovalWidestAudience,
]);
}
// Derive wording for the basic label for
// whatever visibility and action we're handling.
function useBasicLabel(visibility: Visibility, action: Action) {
return useMemo(() => {
let visPost = "";
switch (visibility) {
case "public":
visPost = "a public post";
break;
case "unlisted":
visPost = "an unlisted post";
break;
case "private":
visPost = "a followers-only post";
break;
}
switch (action) {
case "favourite":
return "Who can like " + visPost + "?";
case "reply":
return "Who else can reply to " + visPost + "?";
case "reblog":
return "Who can boost " + visPost + "?";
}
}, [visibility, action]);
}
// Return whatever the "basic" options should
// be in the basic Select for this visibility.
function useBasicOptions(visibility: Visibility) {
return useMemo(() => {
const audience = visibility === "private"
? "My followers"
: "Anyone";
return (
<>
<option value="anyone">{audience}</option>
<option value="anyone_with_approval">{audience} (approval required)</option>
<option value="just_me">Just me</option>
{ visibility !== "private" &&
<option value="something_else">Something else...</option>
}
</>
);
}, [visibility]);
}
export function useBasicFor(
forVis: Visibility,
forAction: Action,
currentAlways: InteractionPolicyValue[],
currentWithApproval: InteractionPolicyValue[],
): PolicyFormSub {
// Determine who's currently *basically* allowed
// to do this action for this visibility.
const defaultValue = useBasicValue(
forVis,
forAction,
currentAlways,
currentWithApproval,
);
return {
field: useTextInput("basic", { defaultValue: defaultValue }),
label: useBasicLabel(forVis, forAction),
options: useBasicOptions(forVis),
};
}
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