Vencord/src/api/Commands/index.ts
2022-10-12 22:22:21 +02:00

100 lines
3.3 KiB
TypeScript

import { makeCodeblock } from "../../utils/misc";
import { generateId, sendBotMessage } from "./commandHelpers";
import { ApplicationCommandInputType, ApplicationCommandType, Argument, Command, CommandContext, Option, CommandReturnValue } from "./types";
export * from "./types";
export * from "./commandHelpers";
export let BUILT_IN: Command[];
export const commands = {} as Record<string, Command>;
// hack for plugins being evaluated before we can grab these from webpack
const OptPlaceholder = Symbol("OptionalMessageOption") as any as Option;
const ReqPlaceholder = Symbol("RequiredMessageOption") as any as Option;
/**
* Optional message option named "message" you can use in commands.
* Used in "tableflip" or "shrug"
* @see {@link RequiredMessageOption}
*/
export let OptionalMessageOption: Option = OptPlaceholder;
/**
* Required message option named "message" you can use in commands.
* Used in "me"
* @see {@link OptionalMessageOption}
*/
export let RequiredMessageOption: Option = ReqPlaceholder;
export const _init = function (cmds: Command[]) {
try {
BUILT_IN = cmds;
OptionalMessageOption = cmds.find(c => c.name === "shrug")!.options![0];
RequiredMessageOption = cmds.find(c => c.name === "me")!.options![0];
} catch (e) {
console.error("Failed to load CommandsApi");
}
return cmds;
} as never;
export const _handleCommand = function (cmd: Command, args: Argument[], ctx: CommandContext) {
if (!cmd.isVencordCommand)
return cmd.execute(args, ctx);
const handleError = (err: any) => {
// TODO: cancel send if cmd.inputType === BUILT_IN_TEXT
const msg = `An Error occurred while executing command "${cmd.name}"`;
const reason = err instanceof Error ? err.stack || err.message : String(err);
console.error(msg, err);
sendBotMessage(ctx.channel.id, {
content: `${msg}:\n${makeCodeblock(reason)}`,
author: {
username: "Vencord"
}
});
};
try {
const res = cmd.execute(args, ctx);
return res instanceof Promise ? res.catch(handleError) : res;
} catch (err) {
return handleError(err);
}
} as never;
function modifyOpt(opt: Option | Command) {
opt.displayName ||= opt.name;
opt.displayDescription ||= opt.description;
opt.options?.forEach((opt, i, opts) => {
// See comment above Placeholders
if (opt === OptPlaceholder) opts[i] = OptionalMessageOption;
else if (opt === ReqPlaceholder) opts[i] = RequiredMessageOption;
modifyOpt(opts[i]);
});
}
export function registerCommand(command: Command, plugin: string) {
if (BUILT_IN.some(c => c.name === command.name))
throw new Error(`Command '${command.name}' already exists.`);
command.isVencordCommand = true;
command.id ??= generateId();
command.applicationId ??= "-1"; // BUILT_IN;
command.type ??= ApplicationCommandType.CHAT_INPUT;
command.inputType ??= ApplicationCommandInputType.BUILT_IN_TEXT;
command.plugin ||= plugin;
modifyOpt(command);
commands[command.name] = command;
BUILT_IN.push(command);
}
export function unregisterCommand(name: string) {
const idx = BUILT_IN.findIndex(c => c.name === name);
if (idx === -1)
return false;
BUILT_IN.splice(idx, 1);
delete commands[name];
return true;
}