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

import { blockedIps } from "../cache/blockedIps.js";
import { database } from "../db/database.js";
import { announceOnBluesky } from "../modules/announceOnBluesky.js";
import { announceOnDiscord } from "../modules/announceOnDiscord.js";
import { announceOnFacebook } from "../modules/announceOnFacebook.js";
import { announceOnMastodon } from "../modules/announceOnMastodon.js";
import { announceOnReddit } from "../modules/announceOnReddit.js";
import { announceOnThreads } from "../modules/announceOnThreads.js";
import { announceOnTwitter } from "../modules/announceOnTwitter.js";
import { generateAnnouncements } from "../modules/generateAnnouncements.js";
import { getIpFromRequest } from "../modules/getIpFromRequest.js";
import { isAnnouncementType, isValidString } from "../utils/typeguards.js";
import type { FastifyPluginAsync } from "fastify";

const oneDay = 24 * 60 * 60 * 1000;

/**
 * Mounts the entry routes for the application. These routes
 * should not require CORS, as they are used by external services
 * such as our uptime monitor.
 * @param server - The Fastify server instance.
 */
export const announcementRoutes: FastifyPluginAsync = async(server) => {
  server.get("/announcements", async(_request, reply) => {
    const announcements = await database.getInstance().announcements.findMany({
      orderBy: {
        createdAt: "desc",
      },
      take: 10,
    });
    return await reply.
      status(200).
      type("application/json").
      send(
        announcements.map((announcement) => {
          return {
            content:   announcement.content,
            createdAt: announcement.createdAt,
            title:     announcement.title,
            type:      announcement.type,
          };
        }),
      );
  });

  // eslint-disable-next-line @typescript-eslint/naming-convention -- Fastify requires Body instead of body.
  server.post<{ Body: { content: string; type: string } }>(
    "/announcement",

    // eslint-disable-next-line max-statements -- This is a long function.
    async(request, reply) => {
      const token = request.headers.authorization;
      if (token === undefined || token !== process.env.ANNOUNCEMENT_TOKEN) {
        blockedIps.push({
          ip:  getIpFromRequest(request),
          ttl: new Date(Date.now() + oneDay),
        });
        return await reply.status(401).send({
          error:
            // eslint-disable-next-line stylistic/max-len -- Big boi string.
            "This endpoint requires a special auth token. If you believe you should have access, please contact Naomi. To protect our services, your IP has been blocked from all routes for 24 hours.",
        });
      }

      const { content, type } = request.body;
      if (!isValidString(content) || !isValidString(type)) {
        return await reply.status(400).send({
          error: "Missing required fields.",
        });
      }

      if (!isAnnouncementType(type)) {
        return await reply.status(400).send({
          error: `Invalid announcement type. Available types: products, community, company.`,
        });
      }

      const announcement = await generateAnnouncements(content);

      if (announcement === null) {
        return await reply.status(201).send({
          message: `Failed to generate announcements.`,
        });
      }

      const {
        bluesky,
        discord,
        facebook,
        mastodon,
        reddit,
        threads,
        twitter,
      } = announcement.response;
      const { title: discordTitle, content: discordContent } = discord;
      const { title: redditTitle, content: redditContent } = reddit;

      await database.getInstance().announcements.create({
        data: {
          content: discordContent,
          title:   discordTitle,
          type:    type,
        },
      });

      const discordPost = await announceOnDiscord(
        discordTitle,
        discordContent,
        type,
      );
      const redditPost = await announceOnReddit(
        redditTitle,
        redditContent,
        type,
      );
      const blueskyPost = await announceOnBluesky(bluesky);
      const twitterPost = await announceOnTwitter(twitter);
      const facebookPost = await announceOnFacebook(facebook);
      const mastodonPost = await announceOnMastodon(mastodon);
      const threadsPost = await announceOnThreads(threads);
      return await reply.status(201).send({
        cost:    announcement.cost,
        message: `Announcement processed. Discord: ${discordPost}, Reddit: ${redditPost}, Bluesky: ${blueskyPost}, Twitter: ${twitterPost}, Facebook: ${facebookPost}, Mastodon: ${mastodonPost}, Threads: ${threadsPost}`,
        rawPost: announcement.response,
      });
    },
  );
};