/*
Copyright 2020 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import { IPreview } from "./IPreview";
import { TagID } from "../models";
import { MatrixEvent } from "matrix-js-sdk/src/models/event";
import { getSenderName, isSelf, shouldPrefixMessagesIn } from "./utils";
import { _t } from "../../../languageHandler";

export class ReactionEventPreview implements IPreview {
    public getTextFor(event: MatrixEvent, tagId?: TagID): string {
        const reaction = event.getRelation().key;
        if (!reaction) return;

        if (isSelf(event) || !shouldPrefixMessagesIn(event.getRoomId(), tagId)) {
            return reaction;
        } else {
            return _t("%(senderName)s: %(reaction)s", {senderName: getSenderName(event), reaction});
        }
    }
}

/*
Copyright 2020 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import { IPreview } from "./IPreview";
import { TagID } from "../models";
import { MatrixEvent } from "matrix-js-sdk/src/models/event";
import { getSenderName, isSelf, shouldPrefixMessagesIn } from "./utils";
import { _t } from "../../../languageHandler";

export class ReactionEventPreview implements IPreview {
    public getTextFor(event: MatrixEvent, tagId?: TagID): string {
        const relation = event.getRelation();
        if (!relation) return null; // invalid reaction (probably redacted)

        const reaction = relation.key;
        if (!reaction) return null; // invalid reaction (unknown format)

        if (isSelf(event) || !shouldPrefixMessagesIn(event.getRoomId(), tagId)) {
            return reaction;
        } else {
            return _t("%(senderName)s: %(reaction)s", {senderName: getSenderName(event), reaction});
        }
    }
}

Fix reaction event crashes in message previews
Fix reaction event crashes in message previews

Fixes https://github.com/vector-im/riot-web/issues/14224