Add AutoJump back / Fixed! (#384)

* Add AutoJump back / Fixed!

Fixed Issue with not jumping to latest message in channel. 
Fixed Issue with not loading message(s) properly when jumping.

* Update index.tsx

---------

Co-authored-by: thororen1234 <78185467+thororen1234@users.noreply.github.com>

src/equicordplugins/autoJump/index.tsx

@@ -0,0 +1,80 @@
+/*
+ * Vencord, a Discord client mod
+ * Copyright (c) 2024 Vendicated and contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { NavContextMenuPatchCallback } from "@api/ContextMenu";
+import { EquicordDevs } from "@utils/constants";
+import definePlugin from "@utils/types";
+import { Menu, ChannelStore, NavigationRouter, FluxDispatcher, MessageActions, MessageStore } from "@webpack/common";
+
+interface ChannelSelectEvent {
+    type: "CHANNEL_SELECT";
+    channelId: string | null;
+    guildId: string | null;
+}
+
+let lastChan = "0";
+
+function jumpToPresent(channelId, { limit }: { limit?: number } = {}) {
+    MessageActions.trackJump(channelId, null, "Present");
+
+    const jump = { present: true };
+    
+    if (MessageStore.hasPresent(channelId)) {
+        FluxDispatcher.dispatch({
+            type: "LOAD_MESSAGES_SUCCESS_CACHED",
+            jump,
+            channelId,
+            limit
+        });
+    } else {
+        MessageActions.fetchMessages({
+            channelId,
+            limit,
+            jump
+        });
+    }
+}
+
+function autoJump(channel: any) {
+    const guildId = channel.guild_id ?? "@me";
+    const channelId = channel.id;
+
+    if (channelId === lastChan) return;
+
+    NavigationRouter.transitionTo(`/channels/${guildId}/${channelId}`);
+    lastChan = channelId;
+
+    jumpToPresent(channelId, { limit: 100 });
+}
+
+const MenuPatch: NavContextMenuPatchCallback = (children, { channel }) => {
+    children.push(
+        <Menu.MenuItem
+            id="auto-jump"
+            label="Jump to Last Message"
+            action={() => autoJump(channel)}
+        />
+    );
+};
+
+export default definePlugin({
+    name: "AutoJump",
+    description: "Automatically jumps to the last message in selected channel & adds a context-menu option to jump to the last message.",
+    authors: [EquicordDevs.omaw],
+    contextMenus: {
+        "channel-context": MenuPatch,
+        "user-context": MenuPatch,
+        "thread-context": MenuPatch
+    },
+    flux: {
+        async CHANNEL_SELECT({ guildId, channelId }: ChannelSelectEvent) {
+            if (!guildId || !channelId) return;
+            const channel = ChannelStore.getChannel(channelId);
+            if (!channel || lastChan === channel.id) return;
+            autoJump(channel);
+        }
+    }
+});