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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { makeCodeblock } from "../../utils/misc";
import { sendBotMessage } from "./commandHelpers";
import { ApplicationCommandInputType, ApplicationCommandOptionType, ApplicationCommandType, Argument, Command, CommandContext, Option } from "./types";
export * from "./commandHelpers";
export * from "./types";
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${makeCodeblock(reason)}`,
author: {
username: "Vencord"
}
});
};
try {
const res = cmd.execute(args, ctx);
return res instanceof Promise ? res.catch(handleError) : res;
} catch (err) {
return handleError(err);
}
} as never;
/**
* Prepare a Command Option for Discord by filling missing fields
* @param opt
*/
export function prepareOption<O extends Option | Command>(opt: O): O {
opt.displayName ||= opt.name;
opt.displayDescription ||= opt.description;
opt.options?.forEach((opt, i, opts) => {
// See comment above Placeholders
if (opt === OptPlaceholder) opts[i] = OptionalMessageOption;
else if (opt === ReqPlaceholder) opts[i] = RequiredMessageOption;
opt.choices?.forEach(x => x.displayName ||= x.name);
prepareOption(opts[i]);
});
return opt;
}
// Yes, Discord registers individual commands for each subcommand
// TODO: This probably doesn't support nested subcommands. If that is ever needed,
// investigate
function registerSubCommands(cmd: Command, plugin: string) {
cmd.options?.forEach(o => {
if (o.type !== ApplicationCommandOptionType.SUB_COMMAND)
throw new Error("When specifying sub-command options, all options must be sub-commands.");
const subCmd = {
...cmd,
...o,
type: ApplicationCommandType.CHAT_INPUT,
name: `${cmd.name} ${o.name}`,
displayName: `${cmd.name} ${o.name}`,
subCommandPath: [{
name: o.name,
type: o.type,
displayName: o.name
}],
rootCommand: cmd
};
registerCommand(subCmd as any, plugin);
});
}
export function registerCommand<C extends Command>(command: C, plugin: string) {
if (!BUILT_IN) {
console.warn(
"[CommandsAPI]",
`Not registering ${command.name} as the CommandsAPI hasn't been initialised.`,
"Please restart to use commands"
);
return;
}
if (BUILT_IN.some(c => c.name === command.name))
throw new Error(`Command '${command.name}' already exists.`);
command.isVencordCommand = true;
command.id ??= `-${BUILT_IN.length + 1}`;
command.applicationId ??= "-1"; // BUILT_IN;
command.type ??= ApplicationCommandType.CHAT_INPUT;
command.inputType ??= ApplicationCommandInputType.BUILT_IN_TEXT;
command.plugin ||= plugin;
prepareOption(command);
if (command.options?.[0]?.type === ApplicationCommandOptionType.SUB_COMMAND) {
registerSubCommands(command, plugin);
return;
}
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;
}
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