discordeno/src/helpers/interactions/send_interaction_response.ts

import { applicationId, eventHandlers } from "../../bot.ts";
import { cache } from "../../cache.ts";
import { rest } from "../../rest/rest.ts";
import type { DiscordenoInteractionResponse } from "../../types/discordeno/interaction_response.ts";
import { endpoints } from "../../util/constants.ts";
import { snakelize, validateComponents } from "../../util/utils.ts";

/**
 * Send a response to a users slash command. The command data will have the id and token necessary to respond.
 * Interaction `tokens` are valid for **15 minutes** and can be used to send followup messages.
 *
 * NOTE: By default we will suppress mentions. To enable mentions, just pass any mentions object.
 */
export async function sendInteractionResponse(id: bigint, token: string, options: DiscordenoInteractionResponse) {
  // TODO: add more options validations
  if (options.data?.components) validateComponents(options.data?.components);

  // If the user wants this as a private message mark it ephemeral
  if (options.private) {
    options.data = { ...options.data, flags: 64 };
  }

  // If no mentions are provided, force disable mentions
  if (!options.data?.allowedMentions) {
    options.data = { ...options.data, allowedMentions: { parse: [] } };
  }

  // If its already been executed, we need to send a followup response
  if (cache.executedSlashCommands.has(token)) {
    return await rest.runMethod("post", endpoints.WEBHOOK(applicationId, token), snakelize(options.data));
  }

  // Expire in 15 minutes
  cache.executedSlashCommands.add(token);
  setTimeout(() => {
    eventHandlers.debug?.("loop", `Running setTimeout in send_interaction_response file.`);
    cache.executedSlashCommands.delete(token);
  }, 900000);

  return await rest.runMethod("post", endpoints.INTERACTION_ID_TOKEN(id, token), snakelize(options));
}