import "reflect-metadata";
import type { ArgSchema } from "@/args";
import { MODULE_COMMANDS_KEY } from "@/base/ModuleBase";

export interface CommandMeta {
  name: string;
  aliases?: string[];
  description: string;
  args?: ArgSchema;
}

export const COMMAND_META_KEY = Symbol("fluxer:command");

export function Command(meta: CommandMeta): MethodDecorator {
  return (_target, methodName) => {
    if (typeof methodName !== "string") return;
    const commands: Array<{ methodName: string; meta: CommandMeta }> =
      Reflect.getMetadata(MODULE_COMMANDS_KEY, _target.constructor) ?? [];
    commands.push({ methodName, meta });
    Reflect.defineMetadata(MODULE_COMMANDS_KEY, commands, _target.constructor);
  };
}