/*
 * Copyright (c) 2020 WildFireChat. All rights reserved.
 */

import MediaMessageContent from "./mediaMessageContent";
import MessageContentMediaType from "./messageContentMediaType";
import MessageContentType from "./messageContentType";

export default class ImageMessageContent extends MediaMessageContent {
  // base64 encoded, 不包含头部:data:image/png;base64,
  thumbnail;
  imageWidth;
  imageHeight;

  constructor(fileOrLocalPath, remotePath, thumbnail) {
    super(MessageContentType.Image, MessageContentMediaType.Image, fileOrLocalPath, remotePath);
    this.thumbnail = thumbnail;
  }

  digest() {
    return "[图片]";
  }

  encode() {
    let payload = super.encode();
    payload.mediaType = MessageContentMediaType.Image;
    payload.binaryContent = this.thumbnail;
    if (this.imageWidth) {
      let obj = {
        w: this.imageWidth,
        h: this.imageHeight,
      };
      payload.content = JSON.stringify(obj);
    }
    return payload;
  }

  decode(payload) {
    super.decode(payload);
    this.thumbnail = payload.binaryContent;
    if (payload.content) {
      let obj = JSON.parse(payload.content);
      this.imageWidth = obj["w"];
      this.imageHeight = obj["h"];
    }
  }
}