Ebay Include Shipping

Show the true total including shipping on Ebay
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// ==UserScript==
// @name		Ebay Include Shipping
// @namespace	ebay_include_shipping
// @description	Show the true total including shipping on Ebay
// @homepageURL	https://github.com/daraeman/ebay_include_shipping
// @author		daraeman
// @version		1.0.4
// @date		2018-07-20
// @include		/https?:\/\/www\.ebay\.com\/*/
// @require		https://code.jquery.com/jquery-3.2.1.slim.min.js
// @require		https://cdnjs.cloudflare.com/ajax/libs/big.js/5.0.3/big.min.js
// ==/UserScript==

(function( $, Big ) {

	const debug = true;
	const debug_error = true;
	let page;

	log( "Ebay Include Shipping" );

	function getPage() {
		log( "getPage" );
		if ( $( "body.s-page" ).length )
			page = "search";
	}

	function doPage() {
		log( "doPage" );
		if ( page === "search" )
			doSearchPage();
	}

	function doSearchPage() {
		log( "doSearchPage" );

		$( ".srp-results .s-item" ).each( ( i, node ) => {
			let el = $( node );
			log( "el", el );
			let item_text = getItemPriceEl( el ).text().trim();
			log( "item_text", item_text );
			let currency = item_text[0];
			log( "currency", currency );
			let price_string = item_text.substr( 1 );
			log( "price_string", price_string );
			if ( / to /.test( price_string ) ) {
				log( "multiple prices detected [%s], skipping", price_string );
				return;
			}
			let item_price;
			try {
				item_price = new Big( price_string );
				log( "item_price", item_price );
			} catch ( error ) {
				error( "error while parsing number [%s]", item_price );
				return;
			}
			let shipping_string = getShippingPriceEl( el ).text();
			log( "shipping_string", shipping_string );
			let shipping_text = ( /shipping/.test( shipping_string ) ) ? shipping_string.trim().substr( 2 ).replace( /shipping/, "" ).trim() : "";	
			log( "shipping_text", shipping_text );	
			if ( shipping_text ) {
				let shipping_price = new Big( shipping_text );
				addSearchItemShippingPrice( el, item_price.plus( shipping_price ), currency );
			}
		});
	}

	function getItemPriceEl( parent, post_add ) {
		log( "doSearchPage", parent, post_add );
		let selector = ( post_add ) ? ".s-item__price:not( .ebay_include_shipping )" : ".s-item__price";
		return parent.find( selector );
	}

	function getShippingPriceEl( parent ) {
		log( "doSearchPage", parent );
		return parent.find( ".s-item__shipping" );
	}

	function getShippingPriceParentEl( el ) {
		log( "getShippingPriceParentEl", el );
		return el.parent();
	}

	function addSearchItemShippingPrice( el, price, currency ) {
		log( "addSearchItemShippingPrice", el, price, currency );
		let price_parent_el = getShippingPriceParentEl( el );
		log( "price_parent_el", price_parent_el );
		let item_price_el = getItemPriceEl( el, true );
		log( "item_price_el", item_price_el );
		let item_price = item_price_el.text();
		log( "item_price", item_price );
		item_price_el.html( '<span class="ebay_include_shipping">'+ currency + price.toFixed( 2 ).toString() +' incl. shipping</span><br>' );
		item_price_el.find( "span" ).css( {
			"font-size": "20px",
		});
		let shipping_price_el = getShippingPriceEl( el );
		log( "shipping_price_el", shipping_price_el );
		item_price_el.append( '<span class="ebay_include_shipping">(' + item_price.trim() + shipping_price_el.text().trim().replace( "+", " + " ) +")</span>" );
		item_price_el.find( "span" ).last().css({
			"display": "inline-block",
			"margin-top": "4px",
			"font-size": "13px",
			"font-weight": 400,
		});
		shipping_price_el.hide();
	}

	function log() {
		if ( debug )
			console.log( ...arguments );
	}

	function error() {
		if ( debug_error )
			console.error( ...arguments );
	}

	function init() {
		log( "init" );
		getPage();
		doPage();
	}

	init();

})( jQuery, Big );