refactor(events:guildEmojiUpdate): split up into add, delete, update events

src/gateway/handlers/guildEmojiUpdate.ts

@@ -1,14 +1,53 @@
-import cache from '../../models/cache.ts'
+import { Emoji } from "../../structures/emoji.ts"
 import { Guild } from '../../structures/guild.ts'
+import { EmojiPayload } from "../../types/emoji.ts"
 import { GuildEmojiUpdatePayload } from '../../types/gateway.ts'
 import { Gateway, GatewayEventHandler } from '../index.ts'
 
-export const guildEmojiUpdate: GatewayEventHandler = (
+export const guildEmojiUpdate: GatewayEventHandler = async (
   gateway: Gateway,
   d: GuildEmojiUpdatePayload
 ) => {
-  const guild: Guild = cache.get('guild', d.guild_id)
+  const guild: Guild | undefined = await gateway.client.guilds.get(d.guild_id)
   if (guild !== undefined) {
-    // const emojis = guild.emojis
+    const emojis = await guild.emojis.collection()
+    const deleted: Emoji[] = []
+    const added: Emoji[] = []
+    const updated: Array<{ before: Emoji, after: Emoji }> = []
+    const _updated: EmojiPayload[] = []
+
+    for (const raw of d.emojis) {
+      const has = emojis.get(raw.id)
+      if (has === undefined) {
+        await guild.emojis.set(raw.id, raw)
+        const emoji = await guild.emojis.get(raw.id) as Emoji
+        added.push(emoji)
+      } else _updated.push(raw)
+    }
+
+    for (const emoji of emojis.values()) {
+      const find = _updated.find(e => emoji.id === e.id)
+      if (find === undefined) {
+        await guild.emojis.delete(emoji.id)
+        deleted.push(emoji)
+      } else {
+        const before = await guild.emojis.get(find.id) as Emoji
+        await guild.emojis.set(find.id, find)
+        const after = await guild.emojis.get(find.id) as Emoji
+        updated.push({ before, after })
+      }
+    }
+
+    for (const emoji of deleted) {
+      gateway.client.emit('guildEmojiDelete', emoji)
+    }
+
+    for (const emoji of added) {
+      gateway.client.emit('guildEmojiAdd', emoji)
+    }
+
+    for (const emoji of updated) {
+      gateway.client.emit('guildEmojiUpdate', emoji.before, emoji.after)
+    }
   }
 }

src/types/gateway.ts

@@ -186,7 +186,7 @@ export interface GuildBanRemovePayload {
 
 export interface GuildEmojiUpdatePayload {
   guild_id: string
-  emojis: []
+  emojis: EmojiPayload[]
 }
 
 export interface GuildIntegrationsUpdatePayload {