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/***************************************************************************************************
 MoveToDraft
 -------------
 Version 2.3.1
 -------------
 A script to move unsourced articles to draft space, including cleanup and author notification.
 - Moves page to draftspace
 - Checks if any files used are non-free
 - Checks if any redirects pointed to the page
 - Comments out non-free files, turn categories into links, add afc draft template, add redirects
 - Adds notification message on author talk page
 - Updates talk page banners
 - Logs draftification in user subpage
  
***************************************************************************************************/
// <nowiki>
$( function($) {
	
var moveToDraft = function moveToDraft() {

/* ========== Config ============================================================================ */
var config = {};
// Script info
config.script = {
	// Advert to append to edit summaries
	advert:  ' ([[User:Evad37/MoveToDraft.js|via script]])',
	version: '2.3.1'
};
// MediaWiki configuration values
config.mw = mw.config.get( [
	'wgArticleId',
	'wgPageName',
	'wgUserGroups',
	'wgUserName',
	'wgMonthNames'
] );
// Wikitext strings
config.wikitext = {
	'rationale':	window.m2d_rationale || 'Undersourced, incubate in draftspace',
	'editsummary':	window.m2d_editsummary || window.m2d_rationale || '[[WP:AFC|AFC]] draft',
	'notification_heading': '[[Draft:$1|$1]] moved to draftspace',
	'notification':	window.m2d_notification || "An article you recently created, [[Draft:$1|$1]], does not have enough sources and citations as written to remain published. It needs more citations from [[WP:RS|reliable]], [[WP:IS|independent sources]]. <small>([[WP:42|?]])</small> Information that can't be referenced should be removed ([[WP:V|verifiability]] is of [[WP:5|central importance]] on Wikipedia). I've moved your draft to [[Wikipedia:Draftspace|draftspace]] (with a prefix of \"<code>Draft:</code>\" before the article title) where you can incubate the article with minimal disruption. When you feel the article meets Wikipedia's [[WP:GNG|general notability guideline]] and thus is ready for mainspace, please click on the \"Submit your draft for review!\" button at the top of the page. ~~~~",
	'logMsg':		'#[[$1]] moved to [[$2]] at ~~~~~'
};
// Page data -- to be retreived later from api
config.pagedata = {};

// Helper functions
// - prettify an encoded page title (or at least replace underscores with spaces)
var getPageText = function(p) {
	var t = mw.Title.newFromText( decodeURIComponent(p) );
	if (t) {
		return t.getPrefixedText();
	} else {
		return p.replace(/_/g, " ");
	}
};

/* ========== API =============================================================================== */
var API = new mw.Api( {
    ajax: {
        headers: { 
			'Api-User-Agent': 'MoveToDraft/' + config.script.version + 
				' ( https://en.wikipedia.org/wiki/User:Evad37/MoveToDraft )'
		}
    }
} );

/* ========== Tasks ============================================================================= */

// Grab page data - initial author, current wikitext, any redirects, if Draft: page already exists
var grabPageData = function() {
	
	var patt_isRedirect = /^\s*#redirect/i;
	
	var checkedPageTriageStatus = false;
	
	// Function to check if all done
	var checkPageData = function() {
		if (
			config.pagedata.author != null &&
			config.pagedata.oldwikitext != null &&
			config.pagedata.redirects != null &&
			checkedPageTriageStatus
		) {
			//all done - go to next screen
			screen1();
		}
	};

	/* ---------- Initial author ---------------------------------------------------------------- */
	
	/* Try making an api call for just the first revision - but if that is a redirect, then get 'max'
	  number of revisions, and look for first non-redirect revision - use this as the initial author,
	  not the creator of the redirect.
	*/
	var processMaxRvAuthorQuery = function (result) {
		var revisions = result.query.pages[config.mw.wgArticleId].revisions;
		for ( var i=1; i<revisions.length; i++ ) {
			if ( !patt_isRedirect.test(revisions[i]['*']) ) {
				config.pagedata.author = revisions[i].user;
				break;
			}
		}
		//Check that we actually found an author (i.e. not all revisions were redirects
		if ( config.pagedata.author == null ) {
			API.abort();
			var retry = confirm("Could not retrieve page author:\n"+extraJs.makeErrorMsg(c, r)+"\n\nTry again?");
			if ( retry ) {
				screen0();
			} else {
				$("#M2D-modal").remove();
			}
		}
		
		checkPageData();
	};
	
	var processAuthorQuery = function (result) {
		// Check if page is currently a redirect
		if ( result.query.pages[config.mw.wgArticleId].redirect ) {
			API.abort();
			alert("Error: " + config.mw.wgPageName + " is a redirect");
			return;
		}
		// Check if first revision is a redirect
		rvwikitext = result.query.pages[config.mw.wgArticleId].revisions[0]['*'];
		if ( patt_isRedirect.test(rvwikitext) ) {
			// query to look for first non-redirect revision
			API.get( {
				action: 'query',
				pageids: config.mw.wgArticleId,
				prop: 'revisions',
				rvprop: ['user', 'content'],
				rvlimit: 'max',
				rvdir: 'newer'
			} )
			.done( processMaxRvAuthorQuery )
			.fail( function(c,r) {
				if ( r.textStatus === 'abort' ) { return; }
				
				API.abort();
				var retry = confirm("Could not retrieve page author:\n"+extraJs.makeErrorMsg(c, r)+"\n\nTry again?");
				if ( retry ) {
					screen0();
				} else {
					$("#M2D-modal").remove();
				}
			} );
			return;
		}
		
		config.pagedata.author = result.query.pages[config.mw.wgArticleId].revisions[0].user;
		checkPageData();
	};
	
	//Get author
	API.get( {
		action: 'query',
		pageids: config.mw.wgArticleId,
		prop: ['revisions', 'info'],
		rvprop: ['user', 'content'],
		rvlimit: 1,
		rvdir: 'newer'
	} )
	.done( processAuthorQuery )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		API.abort();
		var retry = confirm("Could not retrieve page author:\n"+extraJs.makeErrorMsg(c, r)+"\n\nTry again?");
		if ( retry ) {
			screen0();
		} else {
			$("#M2D-modal").remove();
		}
	} );

	/* ---------- Current wikitext -------------------------------------------------------------- */

	API.get( {
		action: 'query',
		pageids: config.mw.wgArticleId,
		prop: 'revisions',
		rvprop: 'content'
	} )
	.done( function(result) {
		config.pagedata.oldwikitext = result.query.pages[config.mw.wgArticleId].revisions[0]['*'];
		checkPageData();
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		API.abort();
		var retry = confirm("Could not retrieve page wikitext:\n"+ extraJs.makeErrorMsg(c, r)+"\n\nTry again?");
		if ( retry ) {
			screen0();
		} else {
			$("#M2D-modal").remove();
		}
	} );
	
	//TODO(?): also get proposed Draft: page (to check if it is empty or not)
	
	/* ---------- Redirects --------------------------------------------------------------------- */
	var redirectTitles = [];
	
	var processRedirectsQuery = function(result) {
		if ( !result.query || !result.query.pages ) {
			// No results
			config.pagedata.redirects = false;
			checkPageData();
			return;
		}
		// Gather redirect titles into array
		$.each(result.query.pages, function(_id, info) {
			redirectTitles.push(info.title);
		});
		// Continue query if needed
		if ( result.continue ) {
			doRedirectsQuery($.extend(redirectsQuery, result.continue));
			return;
		}
		
		// Check if redirects were found
		if ( redirectTitles.length === 0 ) {
			config.pagedata.redirects = false;
			checkPageData();
			return;
		}
		
		// Set redirects
		config.pagedata.redirects = ( redirectTitles.length === 0 ) ? false : redirectTitles;
		checkPageData();
	};
	
	var redirectsQuery = {
		action: 'query',
		pageids: config.mw.wgArticleId,
		generator: 'redirects',
		grdlimit: 500
	};
	var doRedirectsQuery = function(q) {
		API.get( q )
		.done( processRedirectsQuery )
		.fail( function(c,r) {
			if ( r.textStatus === 'abort' ) { return; }
			
			API.abort();
			var retry = confirm("Could not retrieve redirects:\n" + extraJs.makeErrorMsg(c, r) +
				"\n\nTry again? (or Cancel to skip)");
			if ( retry ) {
				screen0();
			} else {
				config.pagedata.redirects = false;
				checkPageData();
			}
		} );
	};
	doRedirectsQuery(redirectsQuery);
	
	/* ---------- Review (Page Triage) status ----------------------------------------------------------------- */

	API.get( {
		action: 'pagetriagelist',
		page_id: config.mw.wgArticleId
	} )
	.done( function(result) {
		if ( !result.pagetriagelist.pages.length ) {
			var keepGoing = confirm('WARNING: Page has already been reviewed by a New Page Patroller. Are you sure you want to draftify this page?');
			if ( !keepGoing ) {
				API.abort();
				$("#M2D-modal").remove();
				return;
			}
		}
		checkedPageTriageStatus = true;
		checkPageData();
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		API.abort();
		var retry = confirm("Could not retrieve page wikitext:\n"+ extraJs.makeErrorMsg(c, r)+"\n\nTry again?");
		if ( retry ) {
			screen0();
		} else {
			$("#M2D-modal").remove();
		}
	} );	
	
};

//Move page
var movePage = function() {
	$("#M2D-task0").css({"color":"#00F", "font-weight":"bold"});
	$("#M2D-status0").html("...");
	
	API.postWithToken( 'csrf', {
		action: 'move',
		fromid: config.mw.wgArticleId,
		to: config.inputdata.newTitle,
		movetalk: 1,
		noredirect: 1,
		reason: config.inputdata.rationale + config.script.advert
	} )
	.done( function() {
		if (
			-1 === $.inArray('sysop', config.mw.wgUserGroups) &&
			-1 === $.inArray('extendedmover', config.mw.wgUserGroups)
		) {
			// Newly created redirect to be tagged for speedy deletion
			tagRedrect();
			return;
		}
		$("#M2D-task0").css({"color":"#000", "font-weight":""});
		$("#M2D-status0").html("Done!");			
		getImageInfo();
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not move page:\n"+ extraJs.makeErrorMsg(c, r)+"\n\nTry again?");
		if ( retry ) {
			movePage();
		} else {
			$("#M2D-modal").remove();
		}
	} );
};

var tagRedrect = function() {
	$("#M2D-status0").html("Done,<br/>Tagging redirect for speedy deletion...");	
	API.postWithToken( 'csrf', {
		action: 'edit',
		title: config.mw.wgPageName,
		prependtext: '{{Db-r2}}\n',
		summary: '[[WP:R2|R2]] speedy deletion request (article moved to draftspace)' + config.script.advert
	} )
	.done( function() {
		$("#M2D-task0").css({"color":"#000", "font-weight":""});
		$("#M2D-status0").append(" Done!");			
		getImageInfo();
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not tag redirect for speedy deletion:\n"+
			extraJs.makeErrorMsg(c, r) + "\n\nTry again?");
		if ( retry ) {
			tagRedrect();
		} else {
			$("#M2D-task0").css({"color":"#F00", "font-weight":""});
			$("#M2D-status0").append(" Skipped");
			getImageInfo();
		}
	} );
};
	
//Find which images are non-free
var getImageInfo = function() {
	$("#M2D-task1").css({"color":"#00F", "font-weight":"bold"});
	$("#M2D-status1").html("...");
	
	processImageInfo = function(result) {
		var nonfreefiles = [];
		if ( result && result.query ) {
			$.each(result.query.pages, function(id, page) {
				if ( id > 0 && page.categories ) {
					nonfreefiles.push(page.title);
				}
			});
		}
		editWikitext(nonfreefiles);
	};
	
	API.get( {
		action: 'query',
		pageids: config.mw.wgArticleId,
		generator: 'images',
		gimlimit: 'max',
		prop: 'categories',
		cllimit: 'max',
		clcategories: 'Category:All non-free media',
	} )
	.done( function(result){
		$("#M2D-task1").css({"color":"#000", "font-weight":""});
		$("#M2D-status1").html("Done!");
		processImageInfo(result);
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not find if there are non-free files:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
		if ( retry ) {
			getImageInfo();
		} else {
			$("#M2D-task1").css({"color":"#F00", "font-weight":""});
			$("#M2D-status1").html("Skipped");
			editWikitext([]);
		}
	} );	

};


//Comment out non-free files, turn categories into links, add afc draft template, list any redirects
var editWikitext = function(nonfreefiles) {
	$("#M2D-task2").css({"color":"#00F", "font-weight":"bold"});
	$("#M2D-status2").html("...");

	var redirectsList = ( !config.pagedata.redirects ) ? '' : '\n'+
		'<!-- Note: The following pages were redirects to [[' + config.mw.wgPageName +
		']] before draftification:\n' +
		'*[[' + config.pagedata.redirects.join(']]\n*[[') + ']]\n-->\n';
		
	var wikitext = "{{subst:AFC draft|" + config.inputdata.authorName + "}}\n" + redirectsList +
		config.pagedata.oldwikitext.replace(/\[\[\s*[Cc]ategory\s*:/g, "[[:Category:");

	// non-free files
	//  (derived from [[WP:XFDC]] - https://en.wikipedia.org/wiki/User:Evad37/XFDcloser.js )
	if ( nonfreefiles.length > 0 ) {
		// Start building regex strings
		normal_regex_str = "(";
		gallery_regex_str = "(";
		free_regex_str = "(";
		for ( var i=0; i<nonfreefiles.length; i++ ) {
			// Take off namespace prefix
			filename = nonfreefiles[i].replace(/^.*?:/, "");
			// For regex matching: first character can be either upper or lower case, special
			// characters need to be escaped, spaces can be either spaces or underscores
			filename_regex_str = "[" + mw.RegExp.escape(filename.slice(0, 1).toUpperCase()) +
			mw.RegExp.escape(filename.slice(0, 1).toLowerCase()) + "]" +
			mw.RegExp.escape(filename.slice(1)).replace(/ /g, "[ _]");
			// Add to regex strings
			normal_regex_str += "\\[\\[\\s*(?:[Ii]mage|[Ff]ile)\\s*:\\s*" + filename_regex_str +
			"\\s*\\|?.*?(?:(?:\\[\\[.*?\\]\\]).*?)*\\]\\]";
			gallery_regex_str += "^\\s*(?:[Ii]mage|[Ff]ile):\\s*" + filename_regex_str + ".*?$";
			free_regex_str += "\\|\\s*(?:[\\w\\s]+\\=)?\\s*(?:(?:[Ii]mage|[Ff]ile):\\s*)?" +
			filename_regex_str;
			
			if ( i+1 === nonfreefiles.length ) {
				normal_regex_str += ")(?![^<]*?-->)";
				gallery_regex_str += ")(?![^<]*?-->)";
				free_regex_str += ")(?![^<]*?-->)";
			} else {
				normal_regex_str += "|";
				gallery_regex_str += "|";
				free_regex_str += "|";				
			}
		}

		// Check for normal file usage, i.e. [[File:Foobar.png|...]]
		var normal_regex = new RegExp( normal_regex_str, "g");
		wikitext = wikitext.replace(normal_regex, "<!-- Commented out: $1 -->");
		
		// Check for gallery usage, i.e. instances that must start on a new line, eventually
		// preceded with some space, and must include File: or Image: prefix
		var gallery_regex = new RegExp( gallery_regex_str, "mg" );
		wikitext = wikitext.replace(gallery_regex, "<!-- Commented out: $1 -->");
		
		// Check for free usages, for example as template argument, might have the File: or Image:
		// prefix excluded, but must be preceeded by an |
		var free_regex = new RegExp( free_regex_str, "mg" );
		wikitext = wikitext.replace(free_regex, "<!-- Commented out: $1 -->");
	}

	API.postWithToken( 'csrf', {
		action: 'edit',
		pageid: config.mw.wgArticleId,
		text: wikitext,
		summary: config.wikitext.editsummary + config.script.advert
	} )
	.done( function(){
		$("#M2D-task2").css({"color":"#000", "font-weight":""});
		$("#M2D-status2").html("Done!");
		notifyAuthor();
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not edit draft artice:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
		if ( retry ) {
			editWikitext(nonfreefiles);
		} else {
			$("#M2D-task2").css({"color":"#F00", "font-weight":""});
			$("#M2D-status2").html("Skipped");
			notifyAuthor();
		}
	} );
	
};

var notifyAuthor = function() {
	if ( !config.inputdata.notifyEnable ) {
		updateTalk();
		return;
	}
	$("#M2D-task3").css({"color":"#00F", "font-weight":"bold"});
	$("#M2D-status3").html("...");
	
	API.postWithToken( 'csrf', {
		action: 'edit',
		title: 'User talk:' + config.inputdata.authorName,
		section: 'new',
		sectiontitle: config.inputdata.notifyMsgHead,
		text: config.inputdata.notifyMsg,
	} )	
	.done( function(){
		$("#M2D-task3").css({"color":"#000", "font-weight":""});
		$("#M2D-status3").html("Done!");
		updateTalk();
	} )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not edit author talk page:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
		if ( retry ) {
			notifyAuthor();
		} else {
			$("#M2D-task3").css({"color":"#F00", "font-weight":""});
			$("#M2D-status3").html("Skipped");
			updateTalk();
		}
	} );
};

var updateTalk = function() {
	$("#M2D-task4").css({"color":"#00F", "font-weight":"bold"});
	$("#M2D-status4").html("...");

	//if page exists, do a regex search/repace for class/importances parameters
	var processTalkWikitext = function(result) {
		var talk_id = result.query.pageids[0];
		if ( talk_id < 0 ) {
			$("#M2D-task4").css({"color":"#000", "font-weight":""});
			$("#M2D-status4").html("Done (talk page does not exist)");
			draftifyLog();
			return;
		}
		var old_talk_wikitext = result.query.pages[talk_id].revisions[0]['*'];
		var new_talk_wikitext = old_talk_wikitext.replace(/(\|\s*(?:class|importance)\s*=\s*)[^\|}]*(?=[^}]*}})/g, "$1");
		if ( new_talk_wikitext === old_talk_wikitext ) {
			$("#M2D-task4").css({"color":"#000", "font-weight":""});
			$("#M2D-status4").html("Done (no changes needed)");
			draftifyLog();
			return;
		}

		API.postWithToken( 'csrf', {
			action: 'edit',
			pageid: talk_id,
			section: '0',
			text: new_talk_wikitext,
			summary: 'Remove class/importance from project banners' + config.script.advert
		} )
		.done( function(){
			$("#M2D-task4").css({"color":"#000", "font-weight":""});
			$("#M2D-status4").html("Done!");
			draftifyLog();
		} )
		.fail( function(c,r) {
			if ( r.textStatus === 'abort' ) { return; }
			
			var retry = confirm("Could not edit draft's talk page:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
			if ( retry ) {
				updateTalk();
			} else {
				$("#M2D-task4").css({"color":"#F00", "font-weight":""});
				$("#M2D-status4").html("Skipped");
				draftifyLog();
			}
		} );		
		
	};	
	
	//get talk page wikitext (section 0)
	API.get( {
		action: 'query',
		titles: config.inputdata.newTitle.replace("Draft:", "Draft talk:"),
		prop: 'revisions',
		rvprop: 'content',
		rvsection: '0',
		indexpageids: 1
	} )
	.done( processTalkWikitext )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not find draft's talk page:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
		if ( retry ) {
			updateTalk();
		} else {
			$("#M2D-task4").css({"color":"#F00", "font-weight":""});
			$("#M2D-status4").html("Skipped");
			draftifyLog();
		}
	} );
	
};

var draftifyLog = function() {
	$("#M2D-task5").css({"color":"#00F", "font-weight":"bold"});
	$("#M2D-status5").html("...");
	
	var logpage = 'User:' + config.mw.wgUserName + '/Draftify_log';
	var monthNames = config.mw.wgMonthNames.slice(1);
	var now = new Date();
	var heading = '== ' + monthNames[now.getUTCMonth()] + ' ' + now.getUTCFullYear() + ' ==';
	var headingPatt = RegExp(heading);
	
	var processLogWikitext = function(result) {
		var logpage_wikitext = '';
		
		var id = result.query.pageids[0];
		if ( id < 0 ) {
			var createlog = confirm('Log draftification (at ' +  logpage + ') ?');
			if ( !createlog ) {
				$("#M2D-task5").css({"color":"#F00", "font-weight":""});
				$("#M2D-status5").empty().append("Skipped");
				$("#M2D-finished, #M2D-abort").toggle();
				return;
			}
			logpage_wikitext = 'This is a log of pages moved to draftspace using the [[User:Evad37/MoveToDraft|MoveToDraft]] script.'; 
		} else {
			logpage_wikitext = result.query.pages[id].revisions[0]['*'].trim();
		}
		
		if ( !headingPatt.test(logpage_wikitext) ) {
			logpage_wikitext += '\n\n' + heading;
		}
		logpage_wikitext += '\n' + config.inputdata.logMsg;
		
		API.postWithToken( 'csrf', {
			action: 'edit',
			title: logpage,
			text: logpage_wikitext,
			summary: 'Logging [['+config.inputdata.newTitle+']]' + config.script.advert
		} )	
		.done( function(){
			$("#M2D-task5").css({"color":"#000", "font-weight":""});
			$("#M2D-status5").html("Done!");
			$("#M2D-finished, #M2D-abort").toggle();
		} )
		.fail( function(c,r) {
			if ( r.textStatus === 'abort' ) { return; }
			
			var retry = confirm("Could not edit log page:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
			if ( retry ) {
				draftifyLog();
			} else {
				$("#M2D-task5").css({"color":"#F00", "font-weight":""});
				$("#M2D-status5").html("Skipped");
				$("#M2D-finished, #M2D-abort").toggle();
			}
		} );
	};
	
	//get log page wikitext
	API.get( {
		action: 'query',
		titles: logpage,
		prop: 'revisions',
		rvprop: 'content',
		indexpageids: 1
	} )
	.done( processLogWikitext )
	.fail( function(c,r) {
		if ( r.textStatus === 'abort' ) { return; }
		
		var retry = confirm("Could not find log page:\n"+ extraJs.makeErrorMsg(c, r)+"\n\n[Okay] to try again, or [Cancel] to skip");
		if ( retry ) {
			draftifyLog();
		} else {
			$("#M2D-task5").css({"color":"#F00", "font-weight":""});
			$("#M2D-status5").html("Skipped");
			$("#M2D-finished, #M2D-abort").toggle();
		}
	} );
};

// --- Interface screens ---
//0) Initial screen
var screen0 = function() {
	$("#M2D-interface-header, #M2D-interface-content, #M2D-interface-footer").empty();
	$("#M2D-interface-header").text("Move To Draft...");
	$("#M2D-interface-content").text("Loading...");
	grabPageData();
};

//1) User inputs
var screen1 = function() {
	$("#M2D-interface-header, #M2D-interface-content, #M2D-interface-footer").empty();
	$("#M2D-interface-header").text("Move To Draft: options");
	
	$("#M2D-interface-content").append(
		$('<div>').css('margin-bottom','0.5em').append(
			$('<label>').attr('for','M2D-option-newtitle').append(
				'Move to ',
				$('<b>').text('Draft:')
			),
			$('<input>').attr({'type':'text', 'name':'M2D-option-newtitle', 'id':'M2D-option-newtitle'})
		),

		$('<div>').css('margin-bottom','0.5em').append(
			$('<label>').attr({'for':'M2D-option-movelog', 'id':'M2D-option-movelog-label'})
				.css('display','block').text('Move log reason:'),
			$('<textarea>').attr({'rows':'1', 'name':'M2D-option-movelog', 'id':'M2D-option-movelog'})
				.css('width','99%')
		),
		
		$('<div>').css('margin-bottom','0.5em').append(
			$('<label>').attr({'for':'M2D-option-author', 'id':'M2D-option-author-label'}).text('Author:'),
			$('<input>').attr({'type':'text', 'name':'M2D-option-author', 'id':'M2D-option-author'})
		),
		
		$('<label>').attr({'for':'M2D-option-message-enable'}).append(
			$('<input>').attr({'type':'checkbox', 'id':'M2D-option-message-enable'})
				.prop('checked', true),
			'Notify author'
		),
		$('<label>').attr({'for':'M2D-option-message-head', 'id':'M2D-option-message-head-label'})
			.css({'display':'block', 'margin-top':'0.5em'}).text('Notification heading'),
		$('<textarea>').attr({'id':'M2D-option-message-head', 'rows':'1'})
			.css({'width':'99%', 'margin-bottom':'0.5em'}),
		$('<label>').attr({'for':'M2D-option-message', 'id':'M2D-option-message-label'})
			.css('display','block').text('Notification message:'),
		$('<textarea>').attr({'id':'M2D-option-message', 'rows':'6'})
			.css('width','99%')
	);
	
	$('#M2D-option-movelog').val(config.wikitext.rationale);
	$('#M2D-option-newtitle').val(getPageText(config.mw.wgPageName)).change(function() {
		$('#M2D-option-message-head').val(
			$('#M2D-option-message-head').val().trim()
			.replace(/\[\[Draft\:.*?\|/, "[[Draft:" + $('#M2D-option-newtitle').val().trim() + "|")
		);
		$('#M2D-option-message').val(
			$('#M2D-option-message').val().trim()
			.replace(/\[\[Draft\:.*?\|/, "[[Draft:" + $('#M2D-option-newtitle').val().trim() + "|")
		);
	});
	$('#M2D-option-author').val(config.pagedata.author);
	$('#M2D-option-message-enable').change(function() {
		$('#M2D-option-message-head').prop('disabled', !this.checked);
		$('#M2D-option-message').prop('disabled', !this.checked);
	});
	$('#M2D-option-message-head').val(config.wikitext.notification_heading.replace(/\$1/g, getPageText(config.mw.wgPageName)));
	$('#M2D-option-message').val(config.wikitext.notification.replace(/\$1/g, getPageText(config.mw.wgPageName)));
	
	$("#M2D-interface-footer").append(
		$('<button>').attr('id', 'M2D-next').text('Continue'),
		$('<button>').attr('id', 'M2D-cancel').css('margin-left','3em').text('Cancel')
	);

	$("#M2D-cancel").click(function(){
		$("#M2D-modal").remove();
	});

		
	$("#M2D-next").click(function(){
		//Gather inputs
		config.inputdata = {
			rationale:		$('#M2D-option-movelog').val().trim(),
			newTitle: 		"Draft:" + $('#M2D-option-newtitle').val().trim(),
			authorName: 	$('#M2D-option-author').val().trim(),
			notifyEnable:		$('#M2D-option-message-enable').prop('checked'),
			notifyMsgHead:	$('#M2D-option-message-head').val().trim(),
			notifyMsg:		$('#M2D-option-message').val().trim()
		};
		config.inputdata.logMsg = config.wikitext.logMsg
			.replace(/\$1/g, getPageText(config.mw.wgPageName))
			.replace(/\$2/g, config.inputdata.newTitle);

		//Verify inputs
		var errors=[];
		if ( config.inputdata.newTitle.length === 0 ) {
			errors.push("Invalid draft title");
		}
		if ( config.inputdata.authorName.length === 0 ) {
			errors.push("Invalid user name");
		}
		if ( config.inputdata.rationale.length === 0 ) {
			errors.push("Move log reason is empty");
		}
		if ( config.inputdata.notifyEnable ) {
			if ( config.inputdata.notifyMsgHead.length === 0 ) {
				errors.push("Notification heading is empty");
			}
			if ( config.inputdata.notifyMsg.length === 0 ) {
				errors.push("Notification message is empty");
			}
		}
		if ( errors.length >= 1 ) {
			alert("Error:\n\n" + errors.join(";\n"));
			return;
		}
		
		//start process off
		screen2();
	});

};

//2) Progress indicators	
var screen2 = function() {
	$("#M2D-interface-header, #M2D-interface-content, #M2D-interface-footer").empty();
	$("#M2D-interface-header").text("Move To Draft: In progress...");
	$("#M2D-interface-content").append(
		$('<ul>').attr('id', 'M2D-tasks').css("color", "#888").append(
			$('<li>').attr('id', 'M2D-task0').append(
				'Moving page... ',
				$('<span>').attr('id','M2D-status0').text('waiting')
			),
			$('<li>').attr('id', 'M2D-task1').append(
				'Checking images... ',
				$('<span>').attr('id','M2D-status1').text('waiting')
			),	
			$('<li>').attr('id', 'M2D-task2').append(
				'Editing page wikitext... ',
				$('<span>').attr('id','M2D-status2').text('waiting')
			),
			config.inputdata.notifyEnable ?
				$('<li>').attr('id', 'M2D-task3').append(
					'Notifying author... ',
					$('<span>').attr('id','M2D-status3').text('waiting')
				)
				: '',
			$('<li>').attr('id', 'M2D-task4').append(
				'Updating talk page banners... ',
				$('<span>').attr('id','M2D-status4').text('waiting')
			),
			$('<li>').attr('id', 'M2D-task5').append(
				'Logging... ',
				$('<span>').attr('id','M2D-status5').text('waiting')
			)
		)
	);
	
	$("#M2D-interface-footer").append(
		$('<button>').attr('id', 'M2D-abort').text('Abort uncompleted tasks'),
		$('<span>').attr('id', 'M2D-finished').hide().append(
			'Finished!',
			$('<button>').attr('id', 'M2D-close').text('Close')
		)
	);

	$("#M2D-close").click( function(){
		$("#M2D-modal").remove();
		window.location.reload();
	} );
	$("M2D-abort").click( function(){
		API.abort();
		$("#M2D-modal").remove();
		window.location.reload();
	} );
		
	//Start task 0. The rest are done sequentially as each task is completed (or skipped).
	movePage();
};

// --- Add link to 'More' menu (or user-specified portlet) which starts everything ---
mw.util.addPortletLink( (window.m2d_portlet||'p-cactions'), '#', 'Move to draft', 'ca-m2d', null, null, "#ca-move");
$('#ca-m2d').on('click', function(e) {
	e.preventDefault();
	// Add interface shell
	$('body').prepend('<div id="M2D-modal">'+
		'<div id="M2D-interface">'+
			'<h4 id="M2D-interface-header"></h4>'+
			'<hr>'+
			'<div id="M2D-interface-content"></div>'+
			'<hr>'+
			'<div id="M2D-interface-footer"></div>'+
		'</div>'+
	'</div>');
	
	// Interface styling
	$("#M2D-modal").css({
		"position": "fixed",
		"z-index": "1",
		"left": "0",
		"top": "0",
		"width": "100%",
		"height": "100%",
		"overflow": "auto",
		"background-color": "rgba(0,0,0,0.4)"
	});
	$("#M2D-interface").css({
		"background-color": "#f0f0f0",
		"margin": "15% auto",
		"padding": "2px 20px",
		"border": "1px solid #888",
		"width": "80%",
		"max-width": "60em",
		"font-size": "90%"
	});
	$("#M2D-interface-content").css("min-height", "7em");
	$("#M2D-interface-footor").css("min-height", "3em");
		
	// Initial interface content
	screen0();
});


// End of function moveToDraft
};

/* ========== Setup ============================================================================= */
// Only operate in article namespace
if( mw.config.get('wgNamespaceNumber') !== 0 ) {
	return;
}

// Only operate for existing pages
if ( mw.config.get('wgCurRevisionId') === 0 ) {
	return;
}
/* 
// Load Morebits gadget if not already available
if ( window.Morebits == null ) {
	importScript('MediaWiki:Gadget-morebits.js');
	importStylesheet( 'MediaWiki:Gadget-morebits.css' );
}
*/
// Load extra.js if not already available
if ( window.extraJs == null ) {
	importScript('User:Evad37/extra.js');
}
// Load resource loader modules
mw.loader.using( ['mediawiki.util', 'mediawiki.api', 'mediawiki.Title', 'mediawiki.RegExp'], moveToDraft() );


});
// </nowiki>