// ==UserScript==
// @name         SAP Note Enhancer
// @namespace    https://github.com/dellagustin/SAP_Note_Enhancer
// @version      1.1.0
// @description  Highlights correction instruction code from SAP Notes showed in the New Note Framework
// @author       Guilherme Dellagustin (i827833)
// @downloadURL  https://raw.githubusercontent.com/dellagustin/SAP_Note_Enhancer/firefox_gm_user_script/greasemonkey/sap_note_enhancer.user.js
// @match        https://*/*/bc/bsp/sno/ui/main.do
// @run-at       document-end
// @resource     css_SAP_Note_Enhancer https://raw.githubusercontent.com/dellagustin/SAP_Note_Enhancer/firefox_gm_user_script/extensionFiles/sap_note_enhancer.css
// @grant        GM_addStyle
// @grant        GM_getResourceText
// @require      http://code.jquery.com/jquery-2.1.4.min.js
// @require      https://raw.githubusercontent.com/dellagustin/SAP_Note_Enhancer/firefox_gm_user_script/extensionFiles/prismABAP.js
// @require      https://raw.githubusercontent.com/dellagustin/SAP_Note_Enhancer/firefox_gm_user_script/extensionFiles/string_operations.js
// @require      https://raw.githubusercontent.com/dellagustin/SAP_Note_Enhancer/firefox_gm_user_script/extensionFiles/common_ci_operations.js
// ==/UserScript==

var newCSS = GM_getResourceText ("css_SAP_Note_Enhancer");
GM_addStyle (newCSS);

function forEachCorrectionInstruction(callback) {
	$('div.urTxtStd > p').each(function(index) {
		var myElement = $( this );

		if( myElement.text().search('KORREKTURANLEITUNG') >= 0 || myElement.text().search('Correction Inst.') >= 0)
		{
			callback(myElement);
		}
	});
}

function getPakID() {
	var pakID = '';

	// pakid is necessary to create the links to other correction instructions.
	// the only way to get A (not THE) pakid is from the link to the current
	// CI that is present in the note.
	// This may not be the correct pakid for every CI, but as it seems to be
	// related to software component, there is a big chance it is correct.
	$('a').each(function(){
		var linkElement = $(this);

		if(linkElement.attr('href')) {
			var pakIdParam = linkElement.attr('href').match(/(_CPAKID|pv_pakid)=\d*/i);

			pakIdParam && pakIdParam[0] && (pakID = pakIdParam[0].match(/\d+/)[0]);

			if(pakID !== '') {
				return false;
			}
		}
	});

	return pakID;
}

$( document ).ready(function() {

	forEachCorrectionInstruction(function(myElement) {

		var newHtmlForElement = myElement.html();

		newHtmlForElement = replaceAll(newHtmlForElement,	'<br>',	'\n');

		newHtmlForElement = '<div class="ci_block"><pre class="language-abap"><code>' + newHtmlForElement + '</code></pre><div>';

		// Prevents Highlighting of non ABAP comments
    newHtmlForElement = replaceAll(newHtmlForElement,	'*\n&gt;&gt;&gt;',	'*\n</code><code class="language-none">&gt;&gt;&gt;');
		newHtmlForElement = replaceAll(newHtmlForElement,	'&lt;&lt;&lt;\n\n*&amp;',	'&lt;&lt;&lt;</code><code class="language-abap">\n\n*&amp;');

		myElement.html(newHtmlForElement);
	});
});

document.addEventListener('DOMContentLoaded', function(){
	// Look for the packid
	var ciPakID = getPakID();

	if(ciPakID !== '') {
		// Add links to CIs in CI header
		forEachCorrectionInstruction(function(myElement) {
			var newHtmlForElement = myElement.html();

			newHtmlForElement = newHtmlForElement.replace(/\*\$\s.*\$\*/g, function(headerLine) {
				var ciNoteNumber;

				// Not really a replace, it just get the note number
				replaceNoteInCIHeaderLine(headerLine, function(sapNoteNumber) { ciNoteNumber = sapNoteNumber; });

				return headerLine.replace(/\d{10}\s\d{10}/, function(correctionInstruction) {
					var ciNumbers = correctionInstruction.match(/\d{10}/g);

					if(window.location && window.location.hostname.match('\.sap\.corp$')) {
						correctionInstruction =
							'<a href="javascript:startGui(\'/sap/bc/bsp/spn/sno_corr/NNF_Gui_change_corr_inst.sap?'+
							// pv_numm is not really necessary, but with pass it when we have it to mimic the standard
							// note framework as much as possible.
							(ciNoteNumber ? 'pv_numm=' + ciNoteNumber : '') + '&pv_insta=' + ciNumbers[0] +
							'&pv_pakid=' + ciPakID + '&pv_aleid=' + ciNumbers[1] + '\')">' + correctionInstruction + '</a>';
					}
					else {
						correctionInstruction =
							'<a href="/sap/bc/bsp/spn/sno_corr/corr_inst_details.htm?_CINSTA=' + ciNumbers[0] +
							'&_CALEID=' + ciNumbers[1] + '&_CPAKID=' + ciPakID + '">' + correctionInstruction + '</a>';
					}

					return correctionInstruction
				});
			});

			myElement.html(newHtmlForElement);
		});
	}

	forEachCorrectionInstruction(commonCIPostProcessing);
});