82 lines
3.3 KiB
TypeScript
82 lines
3.3 KiB
TypeScript
import {Collection} from "discord.js";
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import glob from "glob";
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import {Command, NamedCommand} from "./command";
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// Internally, it'll keep its original capitalization. It's up to you to convert it to title case when you make a help command.
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export const categories = new Collection<string, string[]>();
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/** Returns the cache of the commands if it exists and searches the directory if not. */
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export const loadableCommands = (async () => {
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const commands = new Collection<string, Command>();
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// Include all .ts files recursively in "src/commands/".
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const files = await globP("src/commands/**/*.ts");
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// Extract the usable parts from "src/commands/" if:
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// - The path is 1 to 2 subdirectories (a or a/b, not a/b/c)
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// - Any leading directory isn't "modules"
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// - The filename doesn't end in .test.ts (for jest testing)
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// - The filename cannot be the hardcoded top-level "template.ts", reserved for generating templates
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const pattern = /src\/commands\/(?!template\.ts)(?!modules\/)(\w+(?:\/\w+)?)(?:test\.)?\.ts/;
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const lists: {[category: string]: string[]} = {};
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for (const path of files) {
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const match = pattern.exec(path);
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if (match) {
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const commandID = match[1]; // e.g. "utilities/info"
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const slashIndex = commandID.indexOf("/");
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const isMiscCommand = slashIndex !== -1;
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const category = isMiscCommand ? commandID.substring(0, slashIndex) : "miscellaneous";
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const commandName = isMiscCommand ? commandID.substring(slashIndex + 1) : commandID; // e.g. "info"
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// If the dynamic import works, it must be an object at the very least. Then, just test to see if it's a proper instance.
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const command = (await import(`../commands/${commandID}`)).default as unknown;
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if (command instanceof NamedCommand) {
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command.name = commandName;
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if (commands.has(commandName)) {
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console.warn(
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`Command "${commandName}" already exists! Make sure to make each command uniquely identifiable across categories!`
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);
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} else {
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commands.set(commandName, command);
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}
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for (const alias of command.aliases) {
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if (commands.has(alias)) {
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console.warn(
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`Top-level alias "${alias}" from command "${commandID}" already exists either as a command or alias!`
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);
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} else {
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commands.set(alias, command);
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}
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}
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if (!(category in lists)) lists[category] = [];
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lists[category].push(commandName);
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console.log(`Loading Command: ${commandID}`);
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} else {
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console.warn(`Command "${commandID}" has no default export which is a NamedCommand instance!`);
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}
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}
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}
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for (const category in lists) {
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categories.set(category, lists[category]);
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}
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return commands;
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})();
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function globP(path: string) {
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return new Promise<string[]>((resolve, reject) => {
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glob(path, (error, files) => {
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if (error) {
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reject(error);
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} else {
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resolve(files);
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}
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});
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});
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}
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