'use strict';
const Base = require('./Base');
const MessageMedia = require('./MessageMedia');
const Location = require('./Location');
const { MessageTypes } = require('../util/Constants');
/**
* Represents a Message on WhatsApp
* @extends {Base}
*/
class Message extends Base {
constructor(client, data) {
super(client);
if(data) this._patch(data);
}
_patch(data) {
/**
* ID that represents the message
* @type {object}
*/
this.id = data.id;
/**
* Indicates if the message has media available for download
* @type {boolean}
*/
this.hasMedia = data.clientUrl ? true : false;
/**
* Message content
* @type {string}
*/
this.body = this.hasMedia ? data.caption || '' : data.body || '';
/**
* Message type
* @type {MessageTypes}
*/
this.type = data.type;
/**
* Unix timestamp for when the message was created
* @type {number}
*/
this.timestamp = data.t;
/**
* ID for the Chat that this message was sent to, except if the message was sent by the current user.
* @type {string}
*/
this.from = typeof (data.from) === 'object' ? data.from._serialized : data.from;
/**
* ID for who this message is for.
*
* If the message is sent by the current user, it will be the Chat to which the message is being sent.
* If the message is sent by another user, it will be the ID for the current user.
* @type {string}
*/
this.to = typeof (data.to) === 'object' ? data.to._serialized : data.to;
/**
* If the message was sent to a group, this field will contain the user that sent the message.
* @type {string}
*/
this.author = typeof (data.author) === 'object' ? data.author._serialized : data.author;
/**
* Indicates if the message was forwarded
* @type {boolean}
*/
this.isForwarded = data.isForwarded;
/**
* Indicates if the message was a broadcast
* @type {boolean}
*/
this.broadcast = data.broadcast;
/**
* Indicates if the message was sent by the current user
* @type {boolean}
*/
this.fromMe = data.id.fromMe;
/**
* Indicates if the message was sent as a reply to another message.
* @type {boolean}
*/
this.hasQuotedMsg = data.quotedMsg ? true : false;
/**
* Location information contained in the message, if the message is type "location"
* @type {Location}
*/
this.location = data.type === MessageTypes.LOCATION ? new Location(data.lat, data.lng, data.loc) : undefined;
/**
* Indicates the mentions in the message body.
* @type {Array<string>}
*/
this.mentionedIds = [];
if (data.mentionedJidList) {
this.mentionedIds = data.mentionedJidList;
}
return super._patch(data);
}
_getChatId() {
return this.fromMe ? this.to : this.from;
}
/**
* Returns the Chat this message was sent in
* @returns {Promise<Chat>}
*/
getChat() {
return this.client.getChatById(this._getChatId());
}
/**
* Returns the Contact this message was sent from
* @returns {Promise<Contact>}
*/
getContact() {
return this.client.getContactById(this.author || this.from);
}
/**
* Returns the Contacts mentioned in this message
* @returns {Promise<Array<Contact>>}
*/
async getMentions() {
return await Promise.all(this.mentionedIds.map(async m => await this.client.getContactById(m)));
}
/**
* Returns the quoted message, if any
* @returns {Promise<Message>}
*/
async getQuotedMessage() {
if (!this.hasQuotedMsg) return undefined;
const quotedMsg = await this.client.pupPage.evaluate((msgId) => {
let msg = window.Store.Msg.get(msgId);
return msg.quotedMsgObj().serialize();
}, this.id._serialized);
return new Message(this.client, quotedMsg);
}
/**
* Sends a message as a reply to this message. If chatId is specified, it will be sent
* through the specified Chat. If not, it will send the message
* in the same Chat as the original message was sent.
*
* @param {string|MessageMedia|Location} content
* @param {?string} chatId
* @param {object} options
* @returns {Promise<Message>}
*/
async reply(content, chatId, options={}) {
if (!chatId) {
chatId = this._getChatId();
}
options = {
...options,
quotedMessageId: this.id._serialized
};
return this.client.sendMessage(chatId, content, options);
}
/**
* Downloads and returns the attatched message media
* @returns {Promise<MessageMedia>}
*/
async downloadMedia() {
if (!this.hasMedia) {
return undefined;
}
const {data, mimetype, filename} = await this.client.pupPage.evaluate(async (msgId) => {
const msg = window.Store.Msg.get(msgId);
const buffer = await window.WWebJS.downloadBuffer(msg.clientUrl);
const decrypted = await window.Store.CryptoLib.decryptE2EMedia(msg.type, buffer, msg.mediaKey, msg.mimetype);
const data = await window.WWebJS.readBlobAsync(decrypted._blob);
return {
data: data.split(',')[1],
mimetype: msg.mimetype,
filename: msg.filename
};
}, this.id._serialized);
return new MessageMedia(mimetype, data, filename);
}
/**
* Deletes a message from the chat
* @param {?boolean} everyone If true and the message is sent by the current user, will delete it for everyone in the chat.
*/
async delete(everyone) {
await this.client.pupPage.evaluate((msgId, everyone) => {
let msg = window.Store.Msg.get(msgId);
if(everyone && msg.id.fromMe && msg.canRevoke()) {
return window.Store.Cmd.sendRevokeMsgs(msg.chat, [msg], true);
}
return window.Store.Cmd.sendDeleteMsgs(msg.chat, [msg], true);
}, this.id._serialized, everyone);
}
}
module.exports = Message;