hdckit/dist/hdc/Tracker.js

A pure Node.js client for the OpenHarmony Device Connector

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const Emitter_1 = __importDefault(require("licia/Emitter"));
const util_1 = require("./util");
const contain_1 = __importDefault(require("licia/contain"));
class Tracker extends Emitter_1.default {
    constructor(command) {
        super();
        this.command = command;
        this.targetList = [];
        this.ended = false;
        this.read();
        const socket = this.command.connection.socket;
        socket.on('end', () => {
            if (!this.ended) {
                this.ended = true;
                this.emit('error', new Error('Connection closed'));
            }
        });
        socket.on('error', (err) => this.emit('error', err));
    }
    end() {
        this.ended = true;
        this.command.connection.end();
    }
    async read() {
        if (this.ended) {
            return;
        }
        this.command.send('list targets');
        const data = await this.command.connection.readValue();
        const targets = (0, util_1.readTargets)(data.toString());
        this.update(targets);
        setTimeout(() => this.read(), 1000);
    }
    update(newList) {
        for (let i = 0, len = newList.length; i < len; i++) {
            const target = newList[i];
            if ((0, contain_1.default)(this.targetList, target)) {
                continue;
            }
            else {
                this.emit('add', target);
            }
        }
        for (let i = 0, len = this.targetList.length; i < len; i++) {
            const target = this.targetList[i];
            if (!(0, contain_1.default)(newList, target)) {
                this.emit('remove', target);
            }
        }
        this.targetList = newList;
    }
}
exports.default = Tracker;