code splitting

src/errors.ts

@@ -0,0 +1,41 @@
+import { Command } from "./Command.js";
+import { GuildMember } from "discord.js";
+import { Parameter } from "./Parameter.js";
+import { ParameterType } from "./types.js";
+
+export class PermissionsError extends Error {
+    private command: Command;
+    private user: GuildMember | null;
+    constructor(command: Command, user?: GuildMember | null) {
+        super();
+        this.command = command;
+        this.user = user || null;
+    }
+    toString() {
+        return `User ${this.user?.user.tag} doesn't have enough permissions to run "${this.command.name}" command`;
+    }
+}
+
+export class ParameterTypeError extends TypeError {
+    private stringContent: string;
+    private type: ParameterType;
+    constructor(s: string, type: ParameterType) {
+        super();
+        this.stringContent = s;
+        this.type = type;
+    }
+    toString() {
+        return `Parameter "${this.stringContent}" cannot be converted to ${this.type}`;
+    }
+}
+
+export class MissingParameterError extends ReferenceError {
+    private argument: Parameter;
+    constructor(a: Parameter) {
+        super();
+        this.argument = a;
+    }
+    toString() {
+        return `Your request is missing a "${this.argument.name}" parameter which is not optional`;
+    }
+}