import { Collection } from "@discordjs/collection";
import type { ChatMessage } from "@twurple/chat";
import { commands } from "../../commands/collection.ts";
import type { ICommand } from "../../commands/interface.ts";
import { Config } from "../../config/config.ts";
import { BaseEvent } from "../base-event.ts";
import type { EventName } from "../registry.ts";

const Cooldowns = new Collection<string, number>();

export default class MessageEvent extends BaseEvent {
  name: EventName = "message";

  triggered = async (
    channel: string,
    user: string,
    text: string,
    msg: ChatMessage,
  ) => {
    await checkMessage(channel, user, text, msg);
  };
}

async function checkMessage(
  channel: string,
  user: string,
  text: string,
  msg: ChatMessage,
) {
  // logInfo(`message seen: ${channel} - ${user} - ${text}`);
  const prefix = Config.prefix;
  if (!text.startsWith(prefix)) return;

  const commandName = text
    .slice(prefix.length)
    .trim()
    .split(/ +/g)[0]
    .toLowerCase();
  // logInfo(`available commands: ${commands.toJSON()}`);
  // logInfo(`searching for command: ${commandName}`);
  const command = commands.get(commandName);
  if (!command) return;
  if (!command.checkPerms(msg.userInfo)) return;

  const timeLeft = checkCooldown(command);
  if (timeLeft > 0) {
    // return chatClient.say(
    //   channel,
    //   `@${user}, you must wait ${timeLeft} more seconds to use the command again`,
    // );
  }

  await command.triggered(channel, user, text, msg);
}

function checkCooldown(command: ICommand): number {
  const now = Date.now();
  if (command.cooldown > 0) {
    const cooldownTime = Cooldowns.get(command.name);
    if (cooldownTime) {
      if (cooldownTime < now) {
        const timeLeft = 0; // TODO!!!
        return timeLeft;
      } else {
        Cooldowns.set(command.name, now + command.cooldown * 1000);
      }
    }
  }
  return 0;
}