MediaWiki:Gadget/Twinkle/twinkledelimages.js

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// If TwinkleConfig aint exist.
if( typeof( TwinkleConfig ) == 'undefined' ) {
    TwinkleConfig = {};
}

/**
TwinkleConfig.summaryAd (string)
If ad should be added or not to summary, default [[WP:TWINKLE|TWINKLE]]
*/
if( typeof( TwinkleConfig.summaryAd ) == 'undefined' ) {
    TwinkleConfig.summaryAd = " using [[WP:TW|TW]]";
}

/**
TwinkleConfig.deletionSummaryAd (string)
If ad should be added or not to deletion summary, default [[WP:TWINKLE|TWINKLE]]
*/
if( typeof( TwinkleConfig.deletionSummaryAd ) == 'undefined' ) {
    TwinkleConfig.deletionSummaryAd = " using [[WP:TW|TW]]";
}

/**
TwinkleConfig.deliChunks (integer)
How many images should be processed at a time
*/
if( typeof( TwinkleConfig.deliChunks ) == 'undefined' ) {
    TwinkleConfig.deliChunks = 500;
}

/**
TwinkleConfig.deliMax (integer)
How many images should be processed maximum
*/
if( typeof( TwinkleConfig.deliMax ) == 'undefined' ) {
    TwinkleConfig.deliMax = 5000;
}
function twinkledeli() {
    if( wgNamespaceNumber < 0 || wgCurRevisionId == false ) {
        return;
    }
    if( userIsInGroup( 'sysop' ) ) {

        addPortletLink( 'p-cactions', "javascript:twinkledeli.callback()", "Deli-batch", "tw-deli", "Delete image found on page", "");
    }
}
addOnloadHook(twinkledeli);

twinkledeli.unlinkCache = {};
twinkledeli.callback = function twinklesdeliCallback() {
    var Window = new SimpleWindow( 800, 400 );
    Window.setTitle( "Batch image deletion" );

    var form = new QuickForm( twinkledeli.callback.evaluate );
    form.append( {
            type: 'checkbox',
            list: [
                { 
                    label: 'Delete images',
                    name: 'delete_image',
                    value: 'delete',
                    checked: true
                },
                {
                    label: 'Remove image instances to the image',
                    name: 'unlink_image',
                    value: 'unlink',
                    checked: true
                }
            ]
        } );
    form.append( {
            type: 'textarea',
            name: 'reason',
            label: 'Reason: '
        } );
    if( wgNamespaceNumber == Namespace.CATEGORY ) {
        var query = {
            'action': 'query',
            'generator': 'categorymembers',
            'gcmtitle': wgPageName,
            'gcmnamespace': Namespace.IMAGE,
            'gcmlimit' : TwinkleConfig.deliMax, 
            'prop': [ 'imageinfo', 'categories', 'revisions' ],
            'grvlimit': 1,
            'grvprop': [ 'user' ]
        };
    } else {
        var query = {
            'action': 'query',
            'generator': 'images',
            'titles': wgPageName,
            'prop': [ 'imageinfo', 'categories', 'revisions' ],
            'grvlimit': 1,
            'grvprop': [ 'user' ]
        };
    }
    var wikipedia_api = new Wikipedia.api( 'Grabbing images', query, function( self ) {
            var xmlDoc = self.responseXML;
            var snapshot = xmlDoc.evaluate('//page[@imagerepository="local"]', xmlDoc, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null );
            var list = [];
            for ( var i = 0; i < snapshot.snapshotLength; ++i ) {
                var object = snapshot.snapshotItem(i);
                var image = xmlDoc.evaluate( '@title', object, null, XPathResult.STRING_TYPE, null ).stringValue;
                var user = xmlDoc.evaluate( 'imageinfo/ii/@user', object, null, XPathResult.STRING_TYPE, null ).stringValue;
                var last_edit = xmlDoc.evaluate( 'revisions/rev/@user', object, null, XPathResult.STRING_TYPE, null ).stringValue;

                var disputed = xmlDoc.evaluate( 'boolean(categories/cl[@title="Category:Contested candidates for speedy deletion"])', object, null, XPathResult.BOOLEAN_TYPE, null ).booleanValue || user == last_edit;
                list.push( {label:(i+1) + ": " + image + ' (' + user + ')[' + last_edit + ']' + ( disputed ? ' DISPUTED' : '' ), value:image, checked:!disputed });
            }
            self.params.form.append( {
                    type: 'checkbox',
                    name: 'images',
                    list: list
                }
            )
            self.params.form.append( { type:'submit' } );

            var result = self.params.form.render();
            self.params.Window.setContent( result );


        }  );

    wikipedia_api.params = { form:form, Window:Window };
    wikipedia_api.post();
    var root = document.createElement( 'div' );
    Status.init( root );
    Window.setContent( root );
    Window.display();
}

twinkledeli.currentDeleteCounter = 0;
twinkledeli.currentUnlinkCounter = 0;
twinkledeli.currentdeletor;
twinkledeli.callback.evaluate = function twinkledeliCallbackEvaluate(event) {
    wgPageName = wgPageName.replace( /_/g, ' ' ); // for queen/king/whatever and country!
    var images = event.target.getChecked( 'images' );
    var reason = event.target.reason.value;
    var delete_image = event.target.delete_image.checked;
    var unlink_image = event.target.unlink_image.checked;
    if( ! reason ) {
        return;
    }
    Status.init( event.target );
    function toCall( work ) {
        if( work.length == 0 && twinkledeli.currentDeleteCounter <= 0 && twinkledeli.currentUnlinkCounter <= 0 ) {
            Status.info( 'work done' );
            window.clearInterval( twinkledeli.currentdeletor );
            Wikipedia.removeCheckpoint();
            return;
        } else if( twinkledeli.currentDeleteCounter <= 0 && twinkledeli.currentUnlinkCounter <= 0 ) {
            twinkledeli.unlinkCache = []; // Clear the cache
            var images = work.shift();
            twinkledeli.currentDeleteCounter = images.length; // can be less than the number of elements in deliChunks
            for( var i = 0; i < images.length; ++i ) {
                var image = images[i];
                var query = {
                    'action': 'query',
                    'titles': image
                }
                var wikipedia_api = new Wikipedia.api( 'Checking if image ' + image + ' exists', query, twinkledeli.callbacks.main );
                wikipedia_api.params = { image:image, reason:reason, unlink_image:unlink_image, delete_image:delete_image };
                wikipedia_api.post();
            }
        }
    }
    var work = images.chunk( TwinkleConfig.deliChunks );
    Wikipedia.addCheckpoint();
    twinkledeli.currentdeletor = window.setInterval( toCall, 1000, work );
}
twinkledeli.callbacks = {
    main: function( self ) {
        var xmlDoc = self.responseXML;
        var normal = xmlDoc.evaluate( '//normalized/n/@to', xmlDoc, null, XPathResult.STRING_TYPE, null ).stringValue;
        if( normal ) {
            self.params.image = normal;
        }
        var exists = xmlDoc.evaluate( 'boolean(//pages/page[@title="' + self.params.image.replace( /"/g, '\\"') + '" and not(@missing)])', xmlDoc, null, XPathResult.BOOLEAN_TYPE, null ).booleanValue;

        if( ! exists ) {
            self.statelem.error( "It seems that the page doesn't exists, perhaps it has already been deleted" );
            return;
        }
        if( self.params.unlink_image ) {
            var query = {
                'action': 'query',
                'list': 'imageusage',
                'titles': self.params.image,
                'iulimit': userIsInGroup( 'sysop' ) ? 5000 : 500 // 500 is max for normal users, 5000 for bots and sysops
            };
            var wikipedia_api = new Wikipedia.api( 'Grabbing image links', query, twinkledeli.callbacks.unlinkImageInstancesMain );
            wikipedia_api.params = self.params;
            wikipedia_api.post();
        }
        if( self.params.delete_image ) {
            var query = { 
                'title': self.params.image, 
                'action': 'delete'
            };
            var wikipedia_wiki = new Wikipedia.wiki( 'Deleting image ' + self.params.image, query, twinkledeli.callbacks.deleteImage, function( self ) { 
                    --twinkledeli.currentDeleteCounter;
                    var link = document.createElement( 'a' );
                    link.setAttribute( 'href', wgArticlePath.replace( '$1', self.query['title'] ) );
                    link.setAttribute( 'title', self.query['title'] );
                    link.appendChild( document.createTextNode( self.query['title'] ) );
                    self.statelem.info( [ 'completed (' , link , ')' ] );

                } );
            wikipedia_wiki.params = self.params;
            wikipedia_wiki.followRedirect = false;
            wikipedia_wiki.get();        
        }
    },
    deleteImage: function( self ) {
        var form = this.responseXML.getElementById( 'deleteconfirm' );
        if( ! form ) { // Hell, image deletion is b0rked :(
            form = this.responseXML.getElementsByTagName( 'form' )[0];
            var postData = {
                'wpDeleteReasonList': 'other',
                'wpReason': "Deleted because \"" + self.params.reason + "\"." + TwinkleConfig.deletionSummaryAd,
                'wpEditToken': form.wpEditToken.value
            }
            self.post( postData );
        } else {

            var postData = {
                'wpWatch': form.wpWatch.checked ? '' : undefined,
                'wpDeleteReasonList': 'other',
                'wpReason': "Deleted because \"" + self.params.reason + "\"." + TwinkleConfig.deletionSummaryAd,
                'wpEditToken': form.wpEditToken.value
            }
            self.post( postData );
        }
    },
    unlinkImageInstancesMain: function( self ) {
        var xmlDoc = self.responseXML;
        var snapshot = xmlDoc.evaluate('//imageusage/iu/@title', xmlDoc, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null );

        if( snapshot.snapshotLength == 0 ) {
            --twinklebatchdelete.currentUnlinkCounter;
            return;
        }

        var statusIndicator = new Status('Unlinking instances image', '0%');

        var total = snapshot.snapshotLength * 2;

        var onsuccess = function( self ) {
            var obj = self.params.obj;
            var total = self.params.total;
            var now = parseInt( 100 * ++(self.params.current)/total ) + '%';
            obj.update( now );
            self.statelem.unlink();
            if( self.params.current >= total ) {
                obj.info( now + ' (completed)' );
                --twinklebatchdelete.currentUnlinkCounter;
                Wikipedia.removeCheckpoint();

            }
        }
        var onloaded = onsuccess;

        var onloading = function( self ) {}


        Wikipedia.addCheckpoint();
        if( snapshot.snapshotLength == 0 ) {
            statusIndicator.info( '100% (completed)' );
            --twinklebatchdelete.currentUnlinkCounter;
            Wikipedia.removeCheckpoint();
            return;
        }
        self.params.total = total;
        self.params.obj = statusIndicator;
        self.params.current =   0;

        for ( var i = 0; i < snapshot.snapshotLength; ++i ) {
            var title = snapshot.snapshotItem(i).value;
            var query = {
                'title': title,
                'action': 'submit'
            }
            var wikipedia_wiki = new Wikipedia.wiki( "Unlinking on " + title, query, twinkledeli.callbacks.unlinkImageInstances );
            var params = clone( self.params );
            params.title = title;

            wikipedia_wiki.params = params;
            wikipedia_wiki.onloading = onloading;
            wikipedia_wiki.onloaded = onloaded;
            wikipedia_wiki.onsuccess = onsuccess;
            wikipedia_wiki.get();
        }
    },
    unlinkImageInstances: function( self ) {
        var image = self.params.image.replace( /^Image:/, '' );
        var form = self.responseXML.getElementById('editform');
        var text;

        if( self.params.title in twinkledeli.unlinkCache ) {
            text = twinkledeli.unlinkCache[ self.params.title ];
        } else {
            text = form.wpTextbox1.value;
        }
        var old_text = text;
        var wikiPage = new Mediawiki.Page( text );
        wikiPage.commentOutImage( image , 'Commented out because image was deleted' );

        text = wikiPage.getText();
        twinkledeli.unlinkCache[ self.params.title ] = text;
        if( text == old_text ) {
            // Nothing to do, return
            self.onsuccess( self );
            Wikipedia.actionCompleted( self );
            return;
        }
        var postData = {
            'wpMinoredit': form.wpMinoredit.checked ? '' : undefined,
            'wpWatchthis': undefined,
            'wpStarttime': form.wpStarttime.value,
            'wpEdittime': form.wpEdittime.value,
            'wpAutoSummary': form.wpAutoSummary.value,
            'wpEditToken': form.wpEditToken.value,
            'wpSection': '',
            'wpSummary': 'Removing instance of image ' + image + " that has been deleted because \"" + self.params.reason + "\")" + "; " + TwinkleConfig.deletionSummaryAd,
            'wpTextbox1': text
        };
        self.post( postData );
    }
}