import { ChatInputCommandInteraction, Collection } from "discord.js";
import { readdirSync } from "node:fs";
import { Command } from "../types/Command";
import { COMMAND_PATH, COMMANDS_PATH } from "../utils/Config";

export class Handler {
  public commands: Collection<string, Command> = new Collection();
  public coolDown: Map<string, number> = new Map();

  public constructor() {
    const commandFiles = readdirSync(COMMANDS_PATH).filter((f) => {
      // ts-node로 dev 실행 시 .ts, 빌드 후엔 .js. 둘 다 허용하고
      // 선언 파일(.d.ts)/소스맵(.js.map)은 제외한다.
      if (f.endsWith(".d.ts")) return false;
      if (f.endsWith(".js.map") || f.endsWith(".ts.map")) return false;
      return f.endsWith(".ts") || f.endsWith(".js");
    });
    for (const commandFile of commandFiles) {
      const mod = require(COMMAND_PATH(commandFile));
      if (typeof mod.default !== "function") continue; // not a command module
      const command = new mod.default() as Command;
      this.commands.set(command.metaData.name, command);
    }
  }

  public runCommand(interaction: ChatInputCommandInteraction) {
    const commandName = interaction.commandName;
    const command = this.commands.get(commandName);

    if (!command) return;
    if (command.slashRun) command.slashRun(interaction);
  }
}