Migrate Starboard to new Plugin structure

backend/src/plugins/Starboard/events/StarboardReactionAddEvt.ts

@@ -0,0 +1,74 @@
+import { starboardEvt } from "../types";
+import { Message } from "eris";
+import { UnknownUser, resolveMember, noop } from "src/utils";
+import { saveMessageToStarboard } from "../util/saveMessageToStarboard";
+
+export const StarboardReactionAddEvt = starboardEvt({
+  event: "messageReactionAdd",
+
+  async listener(meta) {
+    const pluginData = meta.pluginData;
+
+    let msg = meta.args.message as Message;
+    const userId = meta.args.userID;
+    const emoji = meta.args.emoji;
+
+    if (!msg.author) {
+      // Message is not cached, fetch it
+      try {
+        msg = await msg.channel.getMessage(msg.id);
+      } catch (e) {
+        // Sometimes we get this event for messages we can't fetch with getMessage; ignore silently
+        return;
+      }
+    }
+
+    // No self-votes!
+    if (msg.author.id === userId) return;
+
+    const user = await resolveMember(pluginData.client, pluginData.guild, userId);
+    if (user instanceof UnknownUser) return;
+    if (user.bot) return;
+
+    const config = pluginData.config.getMatchingConfig({ member: user, channelId: msg.channel.id });
+    const applicableStarboards = Object.values(config.boards)
+      .filter(board => board.enabled)
+      // Can't star messages in the starboard channel itself
+      .filter(board => board.channel_id !== msg.channel.id)
+      // Matching emoji
+      .filter(board => {
+        return board.star_emoji.some((boardEmoji: string) => {
+          if (emoji.id) {
+            // Custom emoji
+            const customEmojiMatch = boardEmoji.match(/^<?:.+?:(\d+)>?$/);
+            if (customEmojiMatch) {
+              return customEmojiMatch[1] === emoji.id;
+            }
+
+            return boardEmoji === emoji.id;
+          } else {
+            // Unicode emoji
+            return emoji.name === boardEmoji;
+          }
+        });
+      });
+
+    for (const starboard of applicableStarboards) {
+      // Save reaction into the database
+      await pluginData.state.starboardReactions.createStarboardReaction(msg.id, userId).catch(noop);
+
+      // If the message has already been posted to this starboard, we don't need to do anything else
+      const starboardMessages = await pluginData.state.starboardMessages.getMatchingStarboardMessages(
+        starboard.channel_id,
+        msg.id,
+      );
+      if (starboardMessages.length > 0) continue;
+
+      const reactions = await pluginData.state.starboardReactions.getAllReactionsForMessageId(msg.id);
+      const reactionsCount = reactions.length;
+      if (reactionsCount >= starboard.stars_required) {
+        await saveMessageToStarboard(pluginData, msg, starboard);
+      }
+    }
+  },
+});