import { Request, Response } from "express";
import CalendarService from "../service/club/calendarService";
import CalendarTypeService from "../service/configuration/calendarTypeService";
import { calendar } from "../entity/club/calendar";
import InternalException from "../exceptions/internalException";
import CalendarFactory from "../factory/admin/club/calendar";
import { CalendarHelper } from "../helpers/calendarHelper";
import SettingHelper from "../helpers/settingsHelper";
import sharp from "sharp";
import ico from "sharp-ico";
import { FileSystemHelper } from "../helpers/fileSystemHelper";

/**
 * @description get all calendar items by types or nscdr
 * @summary passphrase is passed as value pair like `type:passphrase`
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getCalendarItemsByTypes(req: Request, res: Response): Promise<any> {
  let types = Array.isArray(req.query.types) ? req.query.types : [req.query.types];
  let nscdr = req.query.nscdr == "true";
  let output = (req.query.output as "ics" | "json") ?? "ics";

  if (output != "ics" && output != "json") {
    throw new InternalException("set output query value to `ics` or `json` (defaults to `ics`)");
  }

  types = types.filter((t) => t);

  let items: Array<calendar> = [];
  if (types.length != 0) {
    let typeIds = await CalendarTypeService.getByTypes((types as Array<string>).map((t) => t.split(":")[0]));
    typeIds = typeIds.filter(
      (ti) =>
        ti.passphrase == null ||
        ti.passphrase == "" ||
        ti.passphrase == (types as Array<string>).find((t) => t.includes(ti.type)).split(":")[1]
    );
    items = await CalendarService.getByTypes(
      typeIds.map((t) => t.id),
      nscdr
    );
  } else {
    items = await CalendarService.getByTypeNSCDR();
  }

  if (output == "json") {
    res.json(CalendarFactory.mapToBase(items));
  } else {
    let { error, value } = CalendarHelper.buildICS(items);

    res.type("ics").send(value);
  }
}

/**
 * @description get configuration of UI
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getApplicationConfig(req: Request, res: Response): Promise<any> {
  let config = {
    "club.name": SettingHelper.getSetting("club.name"),
    "club.imprint": SettingHelper.getSetting("club.imprint"),
    "club.privacy": SettingHelper.getSetting("club.privacy"),
    "club.website": SettingHelper.getSetting("club.website"),
    "app.custom_login_message": SettingHelper.getSetting("app.custom_login_message"),
    "app.show_link_to_calendar": SettingHelper.getSetting("app.show_link_to_calendar"),
  };

  res.json(config);
}

/**
 * @description get application Manifest
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getApplicationManifest(req: Request, res: Response): Promise<any> {
  const backendUrl = `${req.protocol}://${req.get("host")}`;
  const frontenUrl = `${req.get("referer")}`;

  const manifest = {
    id: "ff_admin_webapp",
    lang: "de",
    name: SettingHelper.getSetting("club.name"),
    short_name: SettingHelper.getSetting("club.name"),
    theme_color: "#990b00",
    display: "standalone",
    orientation: "portrait-primary",
    start_url: frontenUrl,
    icons: [
      {
        src: `${backendUrl}/api/public/favicon.ico`,
        sizes: "48x48",
        type: "image/ico",
      },
      {
        src: `${backendUrl}/api/public/icon.png?width=512&height=512`,
        sizes: "512x512",
        type: "image/png",
      },
    ],
  };

  res.set({
    "Access-Control-Allow-Origin": "*",
    "Content-Type": "application/manifest+json",
  });

  res.json(manifest);
}

/**
 * @description get application Logo
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getApplicationLogo(req: Request, res: Response): Promise<any> {
  let setLogo = SettingHelper.getSetting("club.logo");

  res.set({
    "Access-Control-Allow-Origin": "*",
    "Cross-Origin-Resource-Policy": "cross-origin",
    "Cross-Origin-Embedder-Policy": "credentialless",
    "Timing-Allow-Origin": "*",
  });

  if (setLogo != "" && FileSystemHelper.getFilesInDirectory("/app", ".png").includes("admin-icon.png")) {
    res.sendFile(FileSystemHelper.formatPath("/app/admin-logo.png"));
  } else {
    res.sendFile(FileSystemHelper.readAssetFile("admin-logo.png", true));
  }
}

/**
 * @description get application Favicon
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getApplicationFavicon(req: Request, res: Response): Promise<any> {
  let icon = FileSystemHelper.readAssetFile("icon.png", true);
  let setLogo = SettingHelper.getSetting("club.icon");

  if (setLogo != "" && FileSystemHelper.getFilesInDirectory("/app", ".png").includes("admin-icon.png")) {
    icon = FileSystemHelper.formatPath("/app/admin-icon.png");
  }

  let image = await sharp(icon)
    .resize(48, 48, {
      fit: "inside",
    })
    .png()
    .toBuffer();

  let buffer = ico.encode([image]);

  res.set({
    "Access-Control-Allow-Origin": "*",
    "Cross-Origin-Resource-Policy": "cross-origin",
    "Cross-Origin-Embedder-Policy": "credentialless",
    "Timing-Allow-Origin": "*",
    "Content-Type": "image/x-icon",
  });

  res.send(buffer);
}

/**
 * @description get application Icon
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getApplicationIcon(req: Request, res: Response): Promise<any> {
  const width = parseInt((req.query.width as string) ?? "512");
  const height = parseInt((req.query.height as string) ?? "512");

  let icon = FileSystemHelper.readAssetFile("icon.png", true);
  let setLogo = SettingHelper.getSetting("club.icon");

  if (setLogo != "" && FileSystemHelper.getFilesInDirectory("/app", ".png").includes("admin-icon.png")) {
    icon = FileSystemHelper.formatPath("/app/admin-icon.png");
  }

  let image = await sharp(icon)
    .resize(width, height, {
      fit: "inside",
    })
    .png()
    .toBuffer();

  res.set({
    "Access-Control-Allow-Origin": "*",
    "Cross-Origin-Resource-Policy": "cross-origin",
    "Cross-Origin-Embedder-Policy": "credentialless",
    "Timing-Allow-Origin": "*",
    "Content-Type": "image/png",
  });

  res.send(image);
}