/*
 * https://github.com/morethanwords/tweb
 * Copyright (C) 2019-2021 Eduard Kuzmenko
 * https://github.com/morethanwords/tweb/blob/master/LICENSE
 */

import type {PeerPhotoSize} from '../lib/appManagers/appAvatarsManager';
import getPreviewURLFromBytes from '../helpers/bytes/getPreviewURLFromBytes';
import {renderImageFromUrlPromise} from '../helpers/dom/renderImageFromUrl';
import replaceContent from '../helpers/dom/replaceContent';
import setInnerHTML from '../helpers/dom/setInnerHTML';
import {recordPromise} from '../helpers/recordPromise';
import sequentialDom from '../helpers/sequentialDom';
import {UserProfilePhoto, ChatPhoto, User, Chat} from '../layer';
import getPeerColorById from '../lib/appManagers/utils/peers/getPeerColorById';
import getPeerPhoto from '../lib/appManagers/utils/peers/getPeerPhoto';
import {NULL_PEER_ID, REPLIES_PEER_ID} from '../lib/mtproto/mtproto_config';
import wrapAbbreviation from '../lib/richTextProcessor/wrapAbbreviation';
import rootScope from '../lib/rootScope';
import getPeerInitials from './wrappers/getPeerInitials';
import {wrapTopicIcon} from './wrappers/messageActionTextNewUnsafe';
import makeError from '../helpers/makeError';
import noop from '../helpers/noop';
import liteMode from '../helpers/liteMode';

export async function putAvatar(
  div: HTMLElement,
  peerId: PeerId,
  photo: UserProfilePhoto.userProfilePhoto | ChatPhoto.chatPhoto,
  size: PeerPhotoSize,
  img = new Image(),
  onlyThumb = false
) {
  const r = await rootScope.managers.acknowledged.appAvatarsManager.loadAvatar(peerId, photo, size);
  const loadPromise = r.result;
  const cached = r.cached;

  img.classList.add('avatar-photo');

  let renderThumbPromise: Promise<void>;
  let callback: () => void;
  let thumbImage: HTMLImageElement;
  if(cached) {
    // смотри в misc.ts: renderImageFromUrl
    callback = () => {
      replaceContent(div, img);
      div.dataset.color = '';
    };
  } else {
    const animate = liteMode.isAvailable('animations');
    if(animate) {
      img.classList.add('fade-in');
    }

    let isFullLoaded = false;
    if(size === 'photo_big') { // let's load small photo first
      const res = await putAvatar(div, peerId, photo, 'photo_small');
      renderThumbPromise = res.loadThumbPromise || res.loadPromise;
      thumbImage = res.thumbImage;
    } else if(photo.stripped_thumb) {
      thumbImage = new Image();
      div.classList.add('avatar-relative');
      thumbImage.classList.add('avatar-photo', 'avatar-photo-thumbnail');
      const url = getPreviewURLFromBytes(photo.stripped_thumb);
      renderThumbPromise = renderImageFromUrlPromise(thumbImage, url).then(() => {
        if(isFullLoaded) {
          return;
        }

        replaceContent(div, thumbImage);
      });
    }

    callback = () => {
      isFullLoaded = true;

      if(thumbImage) {
        div.append(img);
      } else {
        replaceContent(div, img);
      }

      setTimeout(() => {
        if(div.childElementCount) {
          sequentialDom.mutateElement(img, () => {
            div.dataset.color = '';

            if(animate) {
              img.classList.remove('fade-in');
            }

            thumbImage?.remove();
          });
        }
      }, animate ? 200 : 0);
    };
  }

  const renderPromise = loadPromise
  .then((url) => renderImageFromUrlPromise(img, url/* , !cached */))
  .then(callback);

  renderThumbPromise && await renderThumbPromise.catch(noop);

  return {
    cached,
    loadPromise: renderPromise,
    loadThumbPromise: cached ? renderPromise : renderThumbPromise || Promise.resolve(),
    thumbImage
  };
}

function set(
  div: HTMLElement,
  innerHTML: Parameters<typeof setInnerHTML>[1],
  color: string,
  icon?: string,
  isForum?: boolean,
  isTopic?: boolean
) {
  setInnerHTML(div, innerHTML);
  div.dataset.color = color;
  div.classList.remove('tgico-saved', 'tgico-deletedaccount', 'tgico-reply_filled', 'is-forum', 'is-topic');
  icon && div.classList.add(icon);
  isForum && div.classList.add('is-forum');
  isTopic && div.classList.add('is-topic');
}

// peerId === peerId || title
export default async function putPhoto({
  div,
  peerId,
  isDialog = false,
  title = '',
  onlyThumb = false,
  isBig,
  threadId,
  wrapOptions = {}
}: {
  div: HTMLElement,
  peerId: PeerId,
  isDialog?: boolean,
  title?: string,
  onlyThumb?: boolean,
  isBig?: boolean,
  threadId?: number,
  wrapOptions?: WrapSomethingOptions
}) {
  const myId = rootScope.myId;

  if(peerId === myId && isDialog) {
    set(div, '', '', 'tgico-saved');
    return;
  }

  const managers = rootScope.managers;

  if(threadId) {
    const topic = await managers.dialogsStorage.getForumTopic(peerId, threadId);
    set(div, '', '', undefined, undefined, true);

    if(wrapOptions.customEmojiSize) {
      div.style.setProperty('--size', wrapOptions.customEmojiSize.width + 'px');
    }

    return wrapTopicIcon({
      ...wrapOptions,
      topic,
      lazyLoadQueue: false
    }).then((icon) => {
      div.replaceChildren(icon);
    });
  }

  const peer = await managers.appPeersManager.getPeer(peerId);
  if(peerId !== NULL_PEER_ID && peerId.isUser() && (peer as User.user)?.pFlags?.deleted) {
    set(div, '', getPeerColorById(peerId), 'tgico-deletedaccount');
    return;
  }

  const isForum = !!(peer as Chat.channel)?.pFlags?.forum;
  const size: PeerPhotoSize = isBig ? 'photo_big' : 'photo_small';
  const photo = getPeerPhoto(peer);
  const avatarAvailable = !!photo;
  const avatarRendered = !!div.firstElementChild && !(div.firstElementChild as HTMLElement).classList.contains('emoji');
  if(!avatarAvailable || !avatarRendered || !(await managers.appAvatarsManager.isAvatarCached(peerId, size))) {
    let color = '';
    if(peerId && (peerId !== myId || !isDialog)) {
      color = getPeerColorById(peerId);
    }

    if(peerId === REPLIES_PEER_ID) {
      set(div, '', color, 'tgico-reply_filled');
      return;
    }

    const abbr = title ? wrapAbbreviation(title) : getPeerInitials(peer);
    set(div, abbr, color, '', isForum);
    // return Promise.resolve(true);
  }

  if(avatarAvailable/*  && false */) {
    const promise = putAvatar(div, peerId, photo, size, undefined, onlyThumb);
    // recordPromise(promise, 'putAvatar-' + peerId);
    return promise;
  }
}