Source: stocks.js

/**
 * Stocks Component<BR>
 * <BR><BR><img src=/tk/lib/components/w/img/stocks.png width=30% style="border:1px lime dashed;padding:20px">
 * <BR><BR><a href="/tk/lib/components/w/html/stocks.html">DEMO</a>
 */
class Stocks extends HTMLElement {
    constructor() {
        wc.group("Stocks.constructor")
	
        super();

        wc.groupEnd();
    };
    
    /**
     * Set observable values here. When Changed, attributeChangedCallback is invoked
     * @observedAttributes
     */
    static get observedAttributes() {
        wc.group("Stocks.observedAttributes");

	this.observables = [];

        wc.groupEnd();
        return this.observables;
    };

    /**
     * Called when this is attached to DOM
     * @connectedCallback. 
     */
    connectedCallback() {
        wc.group("Stocks.connectedCallback")
	
	let self = this;

	// ADD A RANDOM ID IF NONE EXIST
	if (!this.id) {
	    this.id = this.constructor.name.toLowerCase() + "-" + wc.uid();
	}

	// GET PROPERTIES AND INTERESTING ELEMENTS
	this._initialize();

	// ADD COMPONENT MARKTOP
	this.innerHTML = this._template()

	wc.wait4(".wc-stocks-symbols", () => {
	    $(".wc-stocks-symbols").focus();

	    wc.enterKey(".wc-stocks-symbols", () => {
		let symbols = $(".wc-stocks-symbols").val().toUpperCase();

		$(".wc-stocks-panel-0, .wc-stocks-panel-1").slideToggle(300)

		this._process(symbols);
	    });
	});

	// ADD STATS AND OTHER FINAL STUFF
	this._finalize();

	ga('send', {'hitType': 'event','eventCategory': 'wc-connected','eventAction': 'connected','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});

        wc.groupEnd();
    };

    /**
     * Initial Markup
     * @private
     * @_template
     */
    _template() {
        wc.group("Stocks.template");
	
	var temp = "<wc-include href=/tk/lib/components/misc/webpack/src/w/html/parts/stocks/main.html></wc-include>";

        wc.groupEnd();
        return temp;
    };

    /**
     * Called with .setAttribute(...) function call
     * @attributeChangedCallback
     */
    attributeChangedCallback(attr, oldval, newval) {
        wc.group("Stocks.attributeChangedCallback:", attr, oldval, newval);

	this.properties = this.properties || [];

	let obs = Stocks.observedAttributes;

	for (let i = 0; i < obs.length; i++) {
	    if (newval) {
		this.properties[obs[i]] = newval;
	    }
	}
	
	// YOUR CODE FOR CHANGES GO HERE (MAYBE NULL FIRST TIME THROUGH)
	try {
	    switch(attr) 
	    {
		case "header":
		//this.querySelector("h1").innerHTML = newval;
		break;
		
		default:
		break;
	    }
	} catch(e) {
	    wc.warn(e.name + ' > ' + e.message);
	}

        wc.groupEnd();
    };

    /**
     * Stores DOM elements of interest for future use
     * @private
     * @_fetchElements
     */
    _fetchElements() {
	wc.group("Stocks._fetchElements");
	
	this.dom = this.dom || [];
	this.dom.content = this.innerHTML;

	wc.groupEnd();
    };

    /**
     * Component attributes are _fetched and defaults are set if undefined
     * @private
     * @_fetchAttributes
     */
    _fetchAttributes() {
	wc.group("Stocks._fetchAttributes");
	
	this.properties = {
	    uparam	: "",
	    cname	: "Stocks",
	    author	: "Mel M. Heravi, Ph.D.",
	    version	: "1.0"
	};
	
	// SAVE WIDGET SPECIFIC PROPERTIES
	this.propertiesW = [];
	
	// SAVE ALL OTHER PROPERTIES
	let attrs = wc.getAttributes(this)
	
 	for (var key in attrs) {
	    let attr = this.getAttribute(key) || this.properties.key;
	    this.properties[key]  = this.getAttribute(key);
	    this.propertiesW[key] = this.getAttribute(key);
	    wc.log(key + ": " + attrs[key]);
	}

	// SET ALL INITIAL ATTRIBUTES
 	for (var key in this.properties) {
	    switch(key) 
	    {
		case "header":
		break;
		
		default:
		break;
	    }
	}

	wc.log("ATTRIBUTES: ", this.properties);

	wc.groupEnd();
    };

    /**
     * Initialize component
     * @private
     * @_initialize
     */
    _initialize() {
	wc.group("Stocks._initialize:", this.id);

	// FETCH ALL INTERESTING ELEMENTS
	this._fetchElements();

	// FETCH ALL ATTRIBUTES
	this._fetchAttributes();
	
	wc.groupEnd();
    };

    /**
     * Save data for analytics and final wrap up
     * @private
     * @_finalize
     */
    _finalize() {
	wc.group("Stocks._finalize:", this.id);

	this.classList.add("wc");

	// ADD ANALYTICS HERE
	wc.setStats(this, this.properties.cname, this.properties.version);
	
	// SHOW IT NOW (NO FLICKERS) 
	this.style.visibility = "visible";

	wc.groupEnd();
    };

    /**
     * Invoked When component is removed. Usually with a .remove() function call
     * @disconnectedCallback
     */
    disconnectedCallback() {
        wc.group("Stocks.disconnectedCallback")

	ga('send', {'hitType': 'event','eventCategory': 'wc-disconnected','eventAction': 'disconnected','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});

        wc.groupEnd();
    };

    /**
     * Destroy the instance object and artifacts
     * @destroy
     */
    destroy() {
	wc.group("Stocks.destroy");

	// FREE ALL MEMORY
	// you should delete all created objects here
	
	// FREE POINTER
	delete this;
	
	// REMOVE ITEM FROM DOM
	this.parentNode.removeChild(this);

	ga('send', {'hitType': 'event','eventCategory': 'wc-destroyed','eventAction': 'distroy','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});

	wc.groupEnd();
    };

    /**
     * @_publish
     */
    _publish(type) {
	wc.group("Stocks._publish:", type);

	wc.publish("wc-stocks", {
	    time: new Date().getTime(),
	    action: type,
	    id: this.id
	});

	wc.groupEnd();
	return true;
    };

    /**
     * @_request
     */
    _request(e) {
	wc.group("Stocks._request:", this.id, JSON.stringify(e.detail));
	
	switch(e.detail.request) 
	{
	    case "label":
	    let h1 = this.querySelector("h1");
	    h1.innerHTML = e.detail.str;
	    this._publish("labelChanged");
	    break;

	    default:
	    alert("DO NOT HAVE SUCH REQUEST: " + e.detail.request);
	    break;
	}

	wc.groupEnd();
	return true;
    };

    /**
     * @_process
     */
    _process(symbols) {
	wc.group("Stocks._process:", symbols);
	
	let self = this;
	let syms = symbols.split(",").sort();

	$(".wc-stocks-panel-1 table tbody").empty();

	for (var i = 0; i < syms.length; i++) {
	    $(".wc-stocks-panel-1 table tbody").append(`
		<tr id="${syms[i]}">
			<td class="animated c-symbol" data-key="${syms[i]}symbol" id="${syms[i]}symbol">${syms[i]}</td>
			<td class="animated c-price" data-key="${syms[i]}price" id="${syms[i]}price"></td>
			<td class="animated c-change"data-key="${syms[i]}change" id="${syms[i]}change"></td>
			<td class="animated c-bid" data-key="${syms[i]}bid" id="${syms[i]}bid"></td>
			<td class="animated c-ask" data-key="${syms[i]}ask" id="${syms[i]}ask"></td>
			<td class="animated c-volume" data-key="${syms[i]}volume" id="${syms[i]}volume"></td>
			<td class="animated c-updated" data-key="${syms[i]}updated" id="${syms[i]}updated"></td>
			<td class="animated c-high" data-key="${syms[i]}high" id="${syms[i]}high"></td>
			<td class="animated c-low" data-key="${syms[i]}low" id="${syms[i]}low"></td>
			<td class="animated c-open" data-key="${syms[i]}open" id="${syms[i]}open"></td>
			<td class="animated c-close" data-key="${syms[i]}close" id="${syms[i]}close"></td>
		</tr>`);
	}

	tkBindAll(function(e) {
	    if (e.data.oldValue != e.data.newValue) {
		// CHECK PRICE CHANGE
		if ($("#" + e.data.key).hasClass("c-price")) {
		    self._change(e);
		}

		// FLASH ON CHANGE
		self._flash("#" + e.data.key);
	    }
	})

	this._update(symbols);

	wc.groupEnd();
	return true;
    };

    /**
     * @_update
     */
    _update(symbols) {
	wc.group("Stocks._update:", symbols);
	
	let self = this;
	let key = "2b6d2ea54bdc7846b2725d26ecc9307a";
	let syms = symbols.toUpperCase();

	if (this.properties.testing == "true") {
	    var url = `/tk/lib/components/misc/webpack/src/w/html/parts/stocks/symbols.json`

	    function task(data,i) { 
		setTimeout(() => {
		    self._show(data);
		}, 1000*i); 
	    } 
	} else {
	    var url = `https://api.tdameritrade.com/v1/marketdata/quotes?apikey=N6RSFI69A6DPXUVJM22BB8T7HFUMXOIW&symbol=${symbols}`
	}

	$.getJSON(url, function(data) {
	    let s = symbols.split(",");

	    for (var i = 0; i < s.length; i++) {
		let p = s[i];

		self._show(data[p]);
	    }
	}).fail(function(jqXHR, textStatus, errorThrown) {
	    wc.error("incoming Text " + jqXHR.responseText);
	});

	if (this.properties.testing == "false") {
	    setTimeout(() => {
		this._update(symbols)
	    }, 3000);
	}

	wc.groupEnd();
	return true;
    };

    /**
     * @_show
     */
    _show(data) {
	wc.group("Stocks._show:", JSON.stringify(data));
	
	let vol = wc.commify(parseInt(data.totalVolume))
	let tim = moment(data.quoteTimeInLong).format("YYYY-MM-DD HH:mm:ss");

	let prin = data.lastPrice;
	let prio = tkModel[`${data.symbol}price`];

	if (prin > prio) {
	    var cls = "wc-stocks-color-up";
	} else {
	    var cls = "wc-stocks-color-dn";
	}
	
	$(`.wc-stocks-panel-1 table tbody tr#${data.symbol} td.c-price`)
	    .removeClass("wc-stocks-color-up")
	    .removeClass("wc-stocks-color-dn")
	    .removeClass("wc-stocks-color-no")
	    .addClass(cls);

	tkModel[`${data.symbol}price`] = `${parseFloat(data.lastPrice).toFixed(2)}`;
	tkModel[`${data.symbol}change`] = `${parseFloat(data.netChange).toFixed(2)}`;
	tkModel[`${data.symbol}bid`] = `${parseFloat(data.bidPrice).toFixed(2)}`;
	tkModel[`${data.symbol}ask`] = `${parseFloat(data.askPrice).toFixed(2)}`;
	tkModel[`${data.symbol}volume`] = `${vol}`;
	tkModel[`${data.symbol}updated`] = `${tim}`;
	tkModel[`${data.symbol}high`] = `${parseFloat(data.highPrice).toFixed(2)}`;
	tkModel[`${data.symbol}low`] = `${parseFloat(data.lowPrice).toFixed(2)}`;
	tkModel[`${data.symbol}open`] = `${parseFloat(data.openPrice).toFixed(2)}`;
	tkModel[`${data.symbol}close`] = `${parseFloat(data.closePrice).toFixed(2)}`;
	
	//$("table th, table td").addClass("shadow");
	
	wc.groupEnd();
    }

    /**
     * @_flash
     */
    _flash(ele) {
	//wc.group("Stocks._flash:", ele);

	$(ele).removeClass("flash");

	setTimeout(() => {
	    $(ele).addClass("flash");
	}, 0);

	//wc.groupEnd();
    }

    /**
     * @_change
     */
    _change(e) {
	wc.group("Stocks._change:", e);

	let tds = $("#" + e.data.key).closest("tr").find("td");

	if (typeof e.data.oldValue === "undefined") {
	    // FIRST TIME THROUGH - GRAY COLOR
	    $(tds).css("color", this.noColor)
	} else {
	    // SET UP/DOWN COLORS
	    if (e.data.newValue > e.data.oldValue) {
		$(tds).css("color", this.dnColor)
	    } else {
		$(tds).css("color", this.upColor)
	    }
	}
	
	wc.groupEnd();
    }
}

window.customElements.define('wc-stocks', Stocks);