import { acceptHMRUpdate, defineStore } from "pinia";
import { API } from "./api";
import { Credentials, DoorSaved, SiteConfigModel } from "./model";
import { Door } from "./rects/door";

declare global {
  interface Navigator {
    readonly msMaxTouchPoints: number;
  }
}

type State = {
  on_initialized: (() => void)[];
  is_touch_device: boolean;
  is_admin: boolean;
  site_config: SiteConfigModel;
  calendar_background_image: string | undefined;
  calendar_aspect_ratio: number;
  user_doors: Door[];
  next_door_target: number | null;
};

export const advent22Store = defineStore({
  id: "advent22",

  state: (): State => ({
    on_initialized: [],
    is_touch_device:
      window.matchMedia("(any-hover: none)").matches ||
      "ontouchstart" in window ||
      navigator.maxTouchPoints > 0 ||
      navigator.msMaxTouchPoints > 0,
    is_admin: false,
    site_config: {
      title: document.title,
      subtitle: "",
      content: "",
      footer: "",
    },
    calendar_background_image: undefined,
    calendar_aspect_ratio: 1,
    user_doors: [],
    next_door_target: null,
  }),

  actions: {
    init(): void {
      this.update().then(() => this.on_initialized.forEach((fn) => fn()));
    },

    update(): Promise<void> {
      return new Promise((resolve, reject) => {
        API.request("user/favicon");
        this.advent22
          .api_get_blob("user/favicon")
          .then((favicon_src) => {
            const link: HTMLLinkElement =
              document.querySelector("link[rel*='icon']") ||
              document.createElement("link");
            link.rel = "shortcut icon";
            link.type = "image/x-icon";
            link.href = favicon_src;

            if (link.parentElement === null)
              document.getElementsByTagName("head")[0].appendChild(link);
          })
          .catch(() => {});

        Promise.all([
          this.update_is_admin(),
          this.advent22.api_get<SiteConfigModel>("user/site_config"),
          this.advent22.api_get_blob("user/background_image"),
          this.advent22.api_get<DoorSaved[]>("user/doors"),
          this.advent22.api_get<number | null>("user/next_door"),
        ])
          .then(
            ([
              is_admin,
              site_config,
              background_image,
              user_doors,
              next_door,
            ]) => {
              is_admin; // discard value

              document.title = site_config.title;

              if (site_config.subtitle !== "")
                document.title += " – " + site_config.subtitle;

              this.site_config = site_config;

              this.calendar_background_image = background_image;

              this.user_doors.length = 0;
              for (const door_saved of user_doors) {
                this.user_doors.push(Door.load(door_saved));
              }

              if (next_door !== null)
                this.next_door_target = Date.now() + next_door;

              resolve();
            },
          )
          .catch(reject);
      });
    },

    when_initialized(callback: () => void): void {
      if (this.is_initialized) {
        callback();
      } else {
        this.on_initialized.push(callback);
      }
    },

    update_is_admin(): Promise<boolean> {
      return new Promise((resolve, reject) => {
        this.advent22
          .api_get<boolean>("admin/is_admin")
          .then((is_admin) => {
            this.is_admin = is_admin;
            resolve(is_admin);
          })
          .catch(reject);
      });
    },

    login(creds: Credentials): Promise<boolean> {
      API.creds = { username: creds[0], password: creds[1] };
      return this.update_is_admin();
    },

    logout(): Promise<boolean> {
      return this.login(["", ""]);
    },

    toggle_touch_device(): void {
      this.is_touch_device = !this.is_touch_device;
    },

    set_calendar_aspect_ratio(rect: DOMRectReadOnly): void {
      const result = rect.width / rect.height;

      // filter suspicious results
      if (result !== 0 && isFinite(result) && !isNaN(result))
        this.calendar_aspect_ratio = result;
    },
  },
});

if (import.meta.webpackHot) {
  import.meta.webpackHot.accept(
    acceptHMRUpdate(advent22Store, import.meta.webpackHot),
  );
}