chore(server): moved errors to dedicated file

server/src/helpers/errors.ts

@@ -13,3 +13,28 @@ export class BadRequestError extends Error {
 }
 
 export const isBadRequestError = (error: any) => error instanceof BadRequestError
+
+export class QueueError extends Error {
+	constructor(message: string) {
+		super(message)
+		this.name = 'QueueError'
+	}
+}
+
+export class AlreadyInQueue extends QueueError {
+	item: any
+	silent: boolean
+	constructor(dwObj: any, silent: boolean) {
+		super(`${dwObj.artist} - ${dwObj.title} is already in queue.`)
+		this.name = 'AlreadyInQueue'
+		this.item = dwObj
+		this.silent = silent
+	}
+}
+
+export class NotLoggedIn extends QueueError {
+	constructor() {
+		super(`You must be logged in to start a download.`)
+		this.name = 'NotLoggedIn'
+	}
+}