import semver from "semver";

import { KeySequence } from "@hooks/stores";
import { getLocale, locales, type LocalizedString } from "@localizations/runtime.js";
import { m } from "@localizations/messages.js";
import { CLOUD_BACKWARDS_COMPATIBLE_VERSION, CLOUD_ENABLE_VERSIONED_UI } from "@/ui.config";

const isInvalidDate = (date: Date) => date instanceof Date && isNaN(date.getTime());

export const formatters = {
  date: (date: Date, options?: Intl.DateTimeFormatOptions) =>
    isInvalidDate(date)
      ? "Invalid Date"
      : new Intl.DateTimeFormat(getLocale() || "en-US", {
          year: "numeric",
          month: "long",
          day: "numeric",
          ...(options || {}),
        }).format(date),

  bytes: (bytes: number, decimals = 2) => {
    if (!+bytes) return "0 Bytes";

    const k = 1024;
    const dm = decimals < 0 ? 0 : decimals;
    const sizes = ["Bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];

    const i = Math.floor(Math.log(bytes) / Math.log(k));

    return `${parseFloat((bytes / Math.pow(k, i)).toFixed(dm))} ${sizes[i]}`;
  },

  hertz: (hz: number, decimals = 2) => {
    if (!+hz) return "0 Hz";

    const k = 1000; // The scaling factor for Hertz is 1000
    const dm = decimals < 0 ? 0 : decimals;
    const sizes = ["Hz", "kHz", "MHz", "GHz", "THz", "PHz", "EHz", "ZHz", "YHz"];

    const i = Math.floor(Math.log(hz) / Math.log(k));

    return `${parseFloat((hz / Math.pow(k, i)).toFixed(dm))} ${sizes[i]}`;
  },

  timeAgo: (date: Date, options?: Intl.RelativeTimeFormatOptions) => {
    const relativeTimeFormat = new Intl.RelativeTimeFormat(getLocale() || "en-US", {
      numeric: "auto",
      ...(options || {}),
    });

    // Note, do not translate the unit names in DIVISIONS, as they must match Intl.RelativeTimeFormatUnit
    const DIVISIONS: {
      amount: number;
      name: Intl.RelativeTimeFormatUnit;
    }[] = [
      { amount: 60, name: "seconds" },
      { amount: 60, name: "minutes" },
      { amount: 24, name: "hours" },
      { amount: 7, name: "days" },
      { amount: 4.34524, name: "weeks" },
      { amount: 12, name: "months" },
      { amount: Number.POSITIVE_INFINITY, name: "years" },
    ];

    let duration = (date.valueOf() - new Date().valueOf()) / 1000;

    for (const division of DIVISIONS) {
      if (Math.abs(duration) < division.amount) {
        return relativeTimeFormat.format(Math.round(duration), division.name);
      }
      duration /= division.amount;
    }
  },

  price: (price: number | bigint | string, options?: Intl.NumberFormatOptions) => {
    const opts: Intl.NumberFormatOptions = {
      style: "currency",
      currency: "USD",
      ...(options || {}),
    };

    // Convert the price to a number for comparison
    const numericPrice = typeof price === "string" ? parseFloat(price) : Number(price);

    // Check if the price is less than 1 and not zero, then adjust minimumFractionDigits
    if (numericPrice > 0 && numericPrice < 1) {
      opts.minimumFractionDigits = Math.max(2, -Math.floor(Math.log10(numericPrice)));
    } else {
      opts.minimumFractionDigits = 0;
    }

    return new Intl.NumberFormat(getLocale() || "en-US", opts).format(numericPrice);
  },

  truncateMiddle: (str: string | null | undefined, maxLength: number): string => {
    if (!str) return "";
    if (str.length <= maxLength) {
      return str;
    }

    const halfLength = Math.floor(maxLength / 2);
    const firstPart = str.slice(0, halfLength - 1);
    const lastPart = str.slice(-halfLength + 2);

    return `${firstPart}...${lastPart}`;
  },
};

export function someIterable<T>(iterable: Iterable<T>, predicate: (item: T) => boolean): boolean {
  for (const item of iterable) {
    if (predicate(item)) return true;
  }

  return false;
}

export const VIDEO = new Blob(
  [
    new Uint8Array([
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      111, 50, 109, 112, 52, 49, 0, 0, 0, 8, 102, 114, 101, 101, 0, 0, 2, 239, 109, 100, 97, 116,
      33, 16, 5, 32, 164, 27, 255, 192, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      55, 167, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 112, 33, 16, 5, 32, 164, 27, 255, 192, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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      0, 0, 0, 0, 55, 167, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 112, 0, 0, 2, 194, 109, 111, 111, 118, 0, 0, 0, 108, 109, 118, 104, 100,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 232, 0, 0, 0, 47, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 1, 236, 116, 114, 97, 107, 0, 0, 0, 92, 116, 107, 104, 100, 0,
      0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 47, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 36, 101, 100, 116,
      115, 0, 0, 0, 28, 101, 108, 115, 116, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 47, 0, 0, 0, 0, 0, 1,
      0, 0, 0, 0, 1, 100, 109, 100, 105, 97, 0, 0, 0, 32, 109, 100, 104, 100, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 172, 68, 0, 0, 8, 0, 85, 196, 0, 0, 0, 0, 0, 45, 104, 100, 108, 114, 0,
      0, 0, 0, 0, 0, 0, 0, 115, 111, 117, 110, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 83, 111, 117,
      110, 100, 72, 97, 110, 100, 108, 101, 114, 0, 0, 0, 1, 15, 109, 105, 110, 102, 0, 0, 0, 16,
      115, 109, 104, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 36, 100, 105, 110, 102, 0, 0, 0, 28, 100,
      114, 101, 102, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 12, 117, 114, 108, 32, 0, 0, 0, 1, 0, 0, 0,
      211, 115, 116, 98, 108, 0, 0, 0, 103, 115, 116, 115, 100, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 87,
      109, 112, 52, 97, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 16, 0, 0, 0, 0,
      172, 68, 0, 0, 0, 0, 0, 51, 101, 115, 100, 115, 0, 0, 0, 0, 3, 128, 128, 128, 34, 0, 2, 0, 4,
      128, 128, 128, 20, 64, 21, 0, 0, 0, 0, 1, 244, 0, 0, 1, 243, 249, 5, 128, 128, 128, 2, 18, 16,
      6, 128, 128, 128, 1, 2, 0, 0, 0, 24, 115, 116, 116, 115, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2,
      0, 0, 4, 0, 0, 0, 0, 28, 115, 116, 115, 99, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 2, 0,
      0, 0, 1, 0, 0, 0, 28, 115, 116, 115, 122, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1, 115, 0,
      0, 1, 116, 0, 0, 0, 20, 115, 116, 99, 111, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 44, 0, 0, 0, 98,
      117, 100, 116, 97, 0, 0, 0, 90, 109, 101, 116, 97, 0, 0, 0, 0, 0, 0, 0, 33, 104, 100, 108,
      114, 0, 0, 0, 0, 0, 0, 0, 0, 109, 100, 105, 114, 97, 112, 112, 108, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 45, 105, 108, 115, 116, 0, 0, 0, 37, 169, 116, 111, 111, 0, 0, 0, 29, 100, 97, 116,
      97, 0, 0, 0, 1, 0, 0, 0, 0, 76, 97, 118, 102, 53, 54, 46, 52, 48, 46, 49, 48, 49,
    ]),
  ],
  { type: "video/mp4" },
);

export function canAutoPlayVideo(
  muted = true,
  timeout = 250,
  inline = false,
): Promise<{ result: boolean; error: Error | null }> {
  const videoElm = document.createElement("video");
  videoElm.muted = muted;
  if (muted) {
    videoElm.setAttribute("muted", "muted");
  }

  if (inline) {
    videoElm.setAttribute("playsinline", "playsinline");
  }

  videoElm.src = URL.createObjectURL(VIDEO);

  return new Promise(resolve => {
    const playResult = videoElm.play();

    const timeoutId = setTimeout(() => {
      sendOutput(false, new Error(`Timeout ${timeout} ms has been reached`));
    }, timeout);

    const sendOutput = (result: boolean, error: Error | null = null) => {
      videoElm.remove();
      videoElm.src = "";

      clearTimeout(timeoutId);
      resolve({ result, error });
    };

    if (playResult !== undefined) {
      playResult
        .then(() => {
          sendOutput(true);
        })
        .catch(playError => {
          sendOutput(false, playError);
        });
    } else {
      sendOutput(true);
    }
  });
}

export function isMac() {
  return !!/mac/i.exec(navigator.platform);
}

export function isWindows() {
  return !!/win/i.exec(navigator.platform);
}

export function isIOS() {
  return (
    !!/ipad/i.exec(navigator.platform) ||
    !!/iphone/i.exec(navigator.platform) ||
    !!/ipod/i.exec(navigator.platform)
  );
}

export function isAndroid() {
  /* Android sets navigator.platform to Linux :/ */
  return !!navigator.userAgent.match("Android ");
}

export function isChromeOS() {
  /* ChromeOS sets navigator.platform to Linux :/ */
  return !!navigator.userAgent.match(" CrOS ");
}

/**
 * Linux desktop browsers, excluding Android and ChromeOS.
 *
 * Used to gate H.265 support: many Linux browsers advertise H.265 in
 * `RTCRtpReceiver.getCapabilities()` and in their SDP offers but cannot
 * actually decode the stream (Chrome on NVIDIA proprietary, Brave/Chromium
 * on Wayland, Firefox on most Linux setups), leaving users stuck on the
 * "Loading video stream..." screen. See jetkvm/kvm#1413.
 */
export function isLinuxDesktop() {
  const uaData = (navigator as Navigator & {
    userAgentData?: { platform?: string };
  }).userAgentData;

  if (uaData?.platform) return uaData.platform === "Linux";

  return /\bLinux\b/.test(navigator.userAgent) && !isAndroid() && !isChromeOS();
}

export function normalizeSortOrders(macros: KeySequence[]): KeySequence[] {
  return macros.map((macro, index) => ({
    ...macro,
    sortOrder: index + 1,
  }));
}

// Retrieves a localized message by its key, with optional inputs and options.
function getLocalizedMessage(
  messageKey: string, // name of the message in a localization file (e.g. "some_action_error")
  inputs?: Record<string, unknown>, // replaces variables in the message (e.g. {error: err.message})
  options?: Record<string, unknown>, // used to override the locale (e.g. {locale: "de"})
): LocalizedString | undefined {
  try {
    type MessageFn = (
      inputs?: Record<string, unknown>,
      options?: Record<string, unknown>,
    ) => LocalizedString;
    const fn = (m as unknown as Record<string, MessageFn | undefined>)[messageKey];
    return fn ? fn(inputs, options) : undefined;
  } catch {
    return undefined;
  }
}

type LocaleCode = (typeof locales)[number];

export function map_locale_code_to_name(
  currentLocale: LocaleCode,
  locale: string,
): [string, string] {
  if (locale === "") {
    return [m.locale_auto(), ""];
  }

  // Use the locale directly with the message function
  // The key pattern is locale_{locale} where underscores replace hyphens
  const messageKey = `locale_${locale.replace("-", "_")}` as const;
  const localizedName = getLocalizedMessage(messageKey, undefined, { locale: currentLocale });
  const nativeName = getLocalizedMessage(messageKey, undefined, { locale });

  if (localizedName && nativeName) {
    return [localizedName, nativeName];
  }

  // Fallback if locale is not found or function not available
  return [locale, ""];
}

export function deleteCookie(name: string, domain?: string, path = "/") {
  const domainPart = domain ? `; domain=${domain}` : "";
  // max-age=0 removes the cookie immediately in modern browsers
  document.cookie = `${name}=; path=${path}; max-age=0${domainPart}`;
  // fallback: set an expires in the past for older agents
  document.cookie = `${name}=; path=${path}; expires=Thu, 01 Jan 1970 00:00:00 GMT${domainPart}`;
}

export function sleep(ms: number): Promise<void> {
  return new Promise(resolve => setTimeout(resolve, ms));
}

/**
 * Builds a versioned cloud URL for a device.
 * Uses the device's app version to construct /v/{version}/devices/{id}{path}
 * Falls back to CLOUD_BACKWARDS_COMPATIBLE_VERSION for older or invalid versions.
 */
export function buildCloudUrl(deviceId: string, appVersion: string | undefined, path = ""): string {
  let uri = `/devices/${deviceId}${path}`;
  if (CLOUD_ENABLE_VERSIONED_UI) {
    const version =
      appVersion &&
      semver.valid(appVersion) &&
      semver.gte(appVersion, CLOUD_BACKWARDS_COMPATIBLE_VERSION)
        ? appVersion
        : CLOUD_BACKWARDS_COMPATIBLE_VERSION;
    uri = `/v/${version}${uri}`;
  }
  return new URL(uri, window.location.origin).href;
}