/**
 * @copyright nhcarrigan
 * @license Naomi's Public License
 * @author Naomi Carrigan
 */

import { AtpAgent } from "@atproto/api";

/**
 * Forwards an announcement to our Bluesky account.
 * @param content - The main body of the announcement.
 * @returns A message indicating the success or failure of the operation.
 */
// eslint-disable-next-line max-lines-per-function, max-statements -- This is a big function.
export const announceOnBluesky = async(
  content: Array<string>,
): Promise<string> => {
  if (process.env.BSKY_APP_PASSWORD === undefined) {
    return "Bluesky credentials are not set.";
  }
  const [ firstPost, ...restOfPosts ] = content;
  const failedReplies: Array<string> = [];
  if (firstPost === undefined) {
    return "No posts to send to Bluesky.";
  }
  const agent = new AtpAgent({
    service: "https://bsky.social",
  });
  await agent.login({
    identifier: "nhcarrigan.com",
    password:   process.env.BSKY_APP_PASSWORD,
  });
  const blueskyRequest = await agent.post({
    text: firstPost,
  }).catch((error: unknown) => {
    return error instanceof Error
      ? error.message
      : String(error);
  });
  if (typeof blueskyRequest === "string") {
    return `Failed to send initial post to Bluesky. ${blueskyRequest}`;
  }
  const rootUri = blueskyRequest.uri;
  const rootCid = blueskyRequest.cid;
  let parentUri = rootUri;
  let parentCid = rootCid;
  for (const post of restOfPosts) {
    // eslint-disable-next-line no-await-in-loop -- We need to do this sequentially.
    const blueskyResponse = await agent.post({
      reply: {
        parent: {
          cid: parentCid,
          uri: parentUri,
        },
        root: {
          cid: rootCid,
          uri: rootUri,
        },
      },
      text: post,
    }).catch((error: unknown) => {
      return error instanceof Error
        ? error.message
        : String(error);
    });
    if (typeof blueskyResponse === "string") {
      failedReplies.push(post);
      continue;
    }
    parentUri = blueskyResponse.uri;
    parentCid = blueskyResponse.cid;
  }
  return `Successfully sent initial post to Bluesky. ${failedReplies.length > 0
    ? `Failed to send ${failedReplies.length.toString()} replies: ${failedReplies.join(", ")}`
    : `All ${(content.length - 1).toString()} replies were sent successfully.`}`;
};