it works

src/plugins/findReply/index.tsx

@@ -0,0 +1,109 @@
+/*
+ * Vencord, a modification for Discord's desktop app
+ * Copyright (c) 2023 Vendicated and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { addButton, removeButton } from "@api/MessagePopover";
+import { Devs } from "@utils/constants";
+import definePlugin, { OptionType } from "@utils/types";
+import { findByPropsLazy } from "@webpack";
+import { ChannelStore, MessageStore, Toasts } from "@webpack/common";
+import Message from "discord-types/general/Message";
+
+
+const jumper = findByPropsLazy("jumpToMessage");
+const FindReplyIcon = () => {
+    return <svg viewBox="0 0 20 20" fill="currentColor" aria-hidden="true" width="18" height="18">
+        <path d="M 7 2 L 7 12 L 4 12 L 9 18 L 14 12 L 11 12 L 11 2" />
+    </svg>;
+};
+
+export default definePlugin({
+    name: "FindReply",
+    description: "Jumps to the earliest reply to a message in a channel (lets you follow past conversations more easily).",
+    authors: [Devs.newwares],
+    start() {
+        addButton("vc-findreply", message => {
+            if (!message.id) return null;
+            return {
+                label: "Jump to Reply",
+                icon: FindReplyIcon,
+                message,
+                channel: ChannelStore.getChannel(message.channel_id),
+                onClick: async () => {
+                    const messages: Array<Message & { deleted?: boolean; }> = [...MessageStore.getMessages(message.channel_id)?._array ?? []].filter(m => !m.deleted).sort((a, b) => {
+                        return b.timestamp.toString().localeCompare(a.timestamp.toString());
+                    }); // Need to deep copy Message array when sorting
+                    console.log(messages);
+                    let reply: Message | null = null;
+                    for (const other of messages) {
+                        if (other.timestamp.toString().localeCompare(message.timestamp.toString()) <= 0) continue;
+                        if (other.messageReference?.message_id === message.id) {
+                            reply = other;
+                            break;
+                        }
+                        if (Vencord.Settings.plugins.FindReply.includePings) {
+                            if (other.content?.includes(`<@${message.author.id}>`)) {
+                                reply = other;
+                                break;
+                            }
+                        }
+                        if (Vencord.Settings.plugins.FindReply.includeAuthor) {
+                            if (messages.find(m => m.id === other.messageReference?.message_id)?.author.id === message.author.id) {
+                                reply = other;
+                                break;
+                            }
+                        }
+
+                    }
+                    if (reply) {
+                        const channelId = reply.channel_id;
+                        const messageId = reply.id;
+                        jumper.jumpToMessage({
+                            channelId,
+                            messageId,
+                            flash: true,
+                            jumpType: "INSTANT"
+                        });
+                    } else {
+                        Toasts.show({
+                            id: Toasts.genId(),
+                            message: "Couldn't find a reply.",
+                            type: Toasts.Type.FAILURE
+                        });
+                    }
+                }
+            };
+        });
+    },
+    stop() {
+        removeButton("vc-findreply");
+    },
+    options: {
+        includePings: {
+            type: OptionType.BOOLEAN,
+            description: "Will also search for messages that @ the author directly",
+            default: false,
+            restartNeeded: false
+        },
+        includeAuthor: {
+            type: OptionType.BOOLEAN,
+            description: "Will also search for messages that reply to the author in general, not just that exact message",
+            default: false,
+            restartNeeded: false
+        }
+    }
+});