From 31855578335d2d3070faaaf53c866321a632603b Mon Sep 17 00:00:00 2001
From: DevAndromeda <46562212+DevAndromeda@users.noreply.github.com>
Date: Sun, 28 Nov 2021 14:10:27 +0545
Subject: [PATCH] fix(Player): handle emitted errors by default

---
 src/Player.ts | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/Player.ts b/src/Player.ts
index 0b90b08..9cbd4fd 100644
--- a/src/Player.ts
+++ b/src/Player.ts
@@ -29,6 +29,7 @@ class Player extends EventEmitter<PlayerEvents> {
     public readonly queues = new Collection<Snowflake, Queue>();
     public readonly voiceUtils = new VoiceUtils();
     public readonly extractors = new Collection<string, ExtractorModel>();
+    public requiredEvents = ["error", "connectionError"] as string[];
 
     /**
      * Creates new Discord Player
@@ -552,12 +553,25 @@ class Player extends EventEmitter<PlayerEvents> {
     scanDeps() {
         const line = "-".repeat(50);
         const depsReport = generateDependencyReport();
-        const extractorReport = this.extractors.map((m) => {
-            return `${m.name} :: ${m.version || "0.1.0"}`;
-        }).join("\n");
+        const extractorReport = this.extractors
+            .map((m) => {
+                return `${m.name} :: ${m.version || "0.1.0"}`;
+            })
+            .join("\n");
         return `${depsReport}\n${line}\nLoaded Extractors:\n${extractorReport || "None"}`;
     }
 
+    emit<U extends keyof PlayerEvents>(eventName: U, ...args: Parameters<PlayerEvents[U]>): boolean {        
+        if (this.requiredEvents.includes(eventName) && !super.eventNames().includes(eventName)) {
+            // eslint-disable-next-line no-console
+            console.error(...args);
+            process.emitWarning(`[DiscordPlayerWarning] Unhandled "${eventName}" event! Events ${this.requiredEvents.map(m => `"${m}"`).join(", ")} must have event listeners!`);
+            return false;
+        } else {
+            return super.emit(eventName, ...args);
+        }
+    }
+
     /**
      * Resolves queue
      * @param {GuildResolvable|Queue} queueLike Queue like object