/**
 * Yonexus Server - Pairing notification provider factory.
 *
 * Selects the notification provider from config (`notifyProvider`).
 * Discord is the default for backward compatibility.
 */

import type { YonexusServerConfig } from "../core/config.js";
import type { PairingNotificationService } from "./types.js";
import { createDiscordNotificationService } from "./discord.js";
import { createFabricNotificationService } from "./fabric.js";

export function createNotificationService(
  config: YonexusServerConfig
): PairingNotificationService {
  if (config.notifyProvider === "fabric") {
    if (!config.fabric) {
      throw new Error(
        'Yonexus.Server: notifyProvider is "fabric" but fabric config is missing'
      );
    }
    return createFabricNotificationService(config.fabric);
  }

  // Default / "discord"
  return createDiscordNotificationService({
    botToken: config.notifyBotToken ?? "",
    adminUserId: config.adminUserId ?? ""
  });
}