/* global plupload, pluploadL10n, ajaxurl, post_id, wpUploaderInit, deleteUserSetting, setUserSetting, getUserSetting, shortform */

var topWin = window.dialogArguments || opener || parent || top, uploader, uploader_init;

// Progress and success handlers for media multi uploads.

function fileQueued( fileObj ) {

	// Get rid of unused form.

	jQuery( '.media-blank' ).remove();

	var items = jQuery( '#media-items' ).children(), postid = post_id || 0;

	// Collapse a single item.

	if ( items.length == 1 ) {

		items.removeClass( 'open' ).find( '.slidetoggle' ).slideUp( 200 );

	}

	// Create a progress bar containing the filename.

	jQuery( '<div class="media-item">' )

		.attr( 'id', 'media-item-' + fileObj.id )

		.addClass( 'child-of-' + postid )

		.appendTo( jQuery( '#media-items' ) );

	// Disable submit.

	jQuery( '#insert-gallery' ).prop( 'disabled', true );

}

function uploadStart() {

	try {

		if ( typeof topWin.tb_remove != 'undefined' )

			topWin.jQuery( '#TB_overlay' ).unbind( 'click', topWin.tb_remove );

	} catch( e ){}

	return true;

}

function uploadProgress( up, file ) {

	var item = jQuery( '#media-item-' + file.id );

	jQuery( '.bar', item ).width( ( 200 * file.loaded ) / file.size );

	jQuery( '.percent', item ).html( file.percent + '%' );

}

// Check to see if a large file failed to upload.

function fileUploading( up, file ) {

	var hundredmb = 100 * 1024 * 1024,

		max = parseInt( up.settings.max_file_size, 10 );

	if ( max > hundredmb && file.size > hundredmb ) {

		setTimeout( function() {

			if ( file.status < 3 && file.loaded === 0 ) { // Not uploading.

				wpFileError( file, pluploadL10n.big_upload_failed.replace( '%1$s', '<a class="uploader-html" href="#">' ).replace( '%2$s', '</a>' ) );

				up.stop();  // Stop the whole queue.

				up.removeFile( file );

				up.start(); // Restart the queue.

			}

		}, 10000 ); // Wait for 10 seconds for the file to start uploading.

	}

}

function updateMediaForm() {

	var items = jQuery( '#media-items' ).children();

	// Just one file, no need for collapsible part.

	if ( items.length == 1 ) {

		items.addClass( 'open' ).find( '.slidetoggle' ).show();

		jQuery( '.insert-gallery' ).hide();

	} else if ( items.length > 1 ) {

		items.removeClass( 'open' );

		// Only show Gallery/Playlist buttons when there are at least two files.

		jQuery( '.insert-gallery' ).show();

	}

	// Only show Save buttons when there is at least one file.

	if ( items.not( '.media-blank' ).length > 0 )

		jQuery( '.savebutton' ).show();

	else

		jQuery( '.savebutton' ).hide();

}

function uploadSuccess( fileObj, serverData ) {

	var item = jQuery( '#media-item-' + fileObj.id );

	// On success serverData should be numeric,

	// fix bug in html4 runtime returning the serverData wrapped in a <pre> tag.

	if ( typeof serverData === 'string' ) {

		serverData = serverData.replace( /^<pre>(\d+)<\/pre>$/, '$1' );

		// If async-upload returned an error message, place it in the media item div and return.

		if ( /media-upload-error|error-div/.test( serverData ) ) {

			item.html( serverData );

			return;

		}

	}

	item.find( '.percent' ).html( pluploadL10n.crunching );

	prepareMediaItem( fileObj, serverData );

	updateMediaForm();

	// Increment the counter.

	if ( post_id && item.hasClass( 'child-of-' + post_id ) ) {

		jQuery( '#attachments-count' ).text( 1 * jQuery( '#attachments-count' ).text() + 1 );

	}

}

function setResize( arg ) {

	if ( arg ) {

		if ( window.resize_width && window.resize_height ) {

			uploader.settings.resize = {

				enabled: true,

				width: window.resize_width,

				height: window.resize_height,

				quality: 100

			};

		} else {

			uploader.settings.multipart_params.image_resize = true;

		}

	} else {

		delete( uploader.settings.multipart_params.image_resize );

	}

}

function prepareMediaItem( fileObj, serverData ) {

	var f = ( typeof shortform == 'undefined' ) ? 1 : 2, item = jQuery( '#media-item-' + fileObj.id );

	if ( f == 2 && shortform > 2 )

		f = shortform;

	try {

		if ( typeof topWin.tb_remove != 'undefined' )

			topWin.jQuery( '#TB_overlay' ).click( topWin.tb_remove );

	} catch( e ){}

	if ( isNaN( serverData ) || !serverData ) {

		// Old style: Append the HTML returned by the server -- thumbnail and form inputs.

		item.append( serverData );

		prepareMediaItemInit( fileObj );

	} else {

		// New style: server data is just the attachment ID, fetch the thumbnail and form html from the server.

		item.load( 'async-upload.php', {attachment_id:serverData, fetch:f}, function(){prepareMediaItemInit( fileObj );updateMediaForm();});

	}

}

function prepareMediaItemInit( fileObj ) {

	var item = jQuery( '#media-item-' + fileObj.id );

	// Clone the thumbnail as a "pinkynail" -- a tiny image to the left of the filename.

	jQuery( '.thumbnail', item ).clone().attr( 'class', 'pinkynail toggle' ).prependTo( item );

	// Replace the original filename with the new (unique) one assigned during upload.

	jQuery( '.filename.original', item ).replaceWith( jQuery( '.filename.new', item ) );

	// Bind Ajax to the new Delete button.

	jQuery( 'a.delete', item ).on( 'click', function(){

		// Tell the server to delete it. TODO: Handle exceptions.

		jQuery.ajax({

			url: ajaxurl,

			type: 'post',

			success: deleteSuccess,

			error: deleteError,

			id: fileObj.id,

			data: {

				id : this.id.replace(/[^0-9]/g, '' ),

				action : 'trash-post',

				_ajax_nonce : this.href.replace(/^.*wpnonce=/,'' )

			}

		});

		return false;

	});

	// Bind Ajax to the new Undo button.

	jQuery( 'a.undo', item ).on( 'click', function(){

		// Tell the server to untrash it. TODO: Handle exceptions.

		jQuery.ajax({

			url: ajaxurl,

			type: 'post',

			id: fileObj.id,

			data: {

				id : this.id.replace(/[^0-9]/g,'' ),

				action: 'untrash-post',

				_ajax_nonce: this.href.replace(/^.*wpnonce=/,'' )

			},

			success: function( ){

				var type,

					item = jQuery( '#media-item-' + fileObj.id );

				if ( type = jQuery( '#type-of-' + fileObj.id ).val() )

					jQuery( '#' + type + '-counter' ).text( jQuery( '#' + type + '-counter' ).text()-0+1 );

				if ( post_id && item.hasClass( 'child-of-'+post_id ) )

					jQuery( '#attachments-count' ).text( jQuery( '#attachments-count' ).text()-0+1 );

				jQuery( '.filename .trashnotice', item ).remove();

				jQuery( '.filename .title', item ).css( 'font-weight','normal' );

				jQuery( 'a.undo', item ).addClass( 'hidden' );

				jQuery( '.menu_order_input', item ).show();

				item.css( {backgroundColor:'#ceb'} ).animate( {backgroundColor: '#fff'}, { queue: false, duration: 500, complete: function(){ jQuery( this ).css({backgroundColor:''}); } }).removeClass( 'undo' );

			}

		});

		return false;

	});

	// Open this item if it says to start open (e.g. to display an error).

	jQuery( '#media-item-' + fileObj.id + '.startopen' ).removeClass( 'startopen' ).addClass( 'open' ).find( 'slidetoggle' ).fadeIn();

}

// Generic error message.

function wpQueueError( message ) {

	jQuery( '#media-upload-error' ).show().html( '<div class="error"><p>' + message + '</p></div>' );

}

// File-specific error messages.

function wpFileError( fileObj, message ) {

	itemAjaxError( fileObj.id, message );

}

function itemAjaxError( id, message ) {

	var item = jQuery( '#media-item-' + id ), filename = item.find( '.filename' ).text(), last_err = item.data( 'last-err' );

	if ( last_err == id ) // Prevent firing an error for the same file twice.

		return;

	item.html( '<div class="error-div">' +

				'<a class="dismiss" href="#">' + pluploadL10n.dismiss + '</a>' +

				'<strong>' + pluploadL10n.error_uploading.replace( '%s', jQuery.trim( filename )) + '</strong> ' +

				message +

				'</div>' ).data( 'last-err', id );

}

function deleteSuccess( data ) {

	var type, id, item;

	if ( data == '-1' )

		return itemAjaxError( this.id, 'You do not have permission. Has your session expired?' );

	if ( data == '0' )

		return itemAjaxError( this.id, 'Could not be deleted. Has it been deleted already?' );

	id = this.id;

	item = jQuery( '#media-item-' + id );

	// Decrement the counters.

	if ( type = jQuery( '#type-of-' + id ).val() )

		jQuery( '#' + type + '-counter' ).text( jQuery( '#' + type + '-counter' ).text() - 1 );

	if ( post_id && item.hasClass( 'child-of-'+post_id ) )

		jQuery( '#attachments-count' ).text( jQuery( '#attachments-count' ).text() - 1 );

	if ( jQuery( 'form.type-form #media-items' ).children().length == 1 && jQuery( '.hidden', '#media-items' ).length > 0 ) {

		jQuery( '.toggle' ).toggle();

		jQuery( '.slidetoggle' ).slideUp( 200 ).siblings().removeClass( 'hidden' );

	}

	// Vanish it.

	jQuery( '.toggle', item ).toggle();

	jQuery( '.slidetoggle', item ).slideUp( 200 ).siblings().removeClass( 'hidden' );

	item.css( {backgroundColor:'#faa'} ).animate( {backgroundColor:'#f4f4f4'}, {queue:false, duration:500} ).addClass( 'undo' );

	jQuery( '.filename:empty', item ).remove();

	jQuery( '.filename .title', item ).css( 'font-weight','bold' );

	jQuery( '.filename', item ).append( '<span class="trashnotice"> ' + pluploadL10n.deleted + ' </span>' ).siblings( 'a.toggle' ).hide();

	jQuery( '.filename', item ).append( jQuery( 'a.undo', item ).removeClass( 'hidden' ) );

	jQuery( '.menu_order_input', item ).hide();

	return;

}

function deleteError() {

}

function uploadComplete() {

	jQuery( '#insert-gallery' ).prop( 'disabled', false );

}

function switchUploader( s ) {

	if ( s ) {

		deleteUserSetting( 'uploader' );

		jQuery( '.media-upload-form' ).removeClass( 'html-uploader' );

		if ( typeof( uploader ) == 'object' )

			uploader.refresh();

	} else {

		setUserSetting( 'uploader', '1' ); // 1 == html uploader.

		jQuery( '.media-upload-form' ).addClass( 'html-uploader' );

	}

}

function uploadError( fileObj, errorCode, message, up ) {

	var hundredmb = 100 * 1024 * 1024, max;

	switch ( errorCode ) {

		case plupload.FAILED:

			wpFileError( fileObj, pluploadL10n.upload_failed );

			break;

		case plupload.FILE_EXTENSION_ERROR:

			wpFileExtensionError( up, fileObj, pluploadL10n.invalid_filetype );

			break;

		case plupload.FILE_SIZE_ERROR:

			uploadSizeError( up, fileObj );

			break;

		case plupload.IMAGE_FORMAT_ERROR:

			wpFileError( fileObj, pluploadL10n.not_an_image );

			break;

		case plupload.IMAGE_MEMORY_ERROR:

			wpFileError( fileObj, pluploadL10n.image_memory_exceeded );

			break;

		case plupload.IMAGE_DIMENSIONS_ERROR:

			wpFileError( fileObj, pluploadL10n.image_dimensions_exceeded );

			break;

		case plupload.GENERIC_ERROR:

			wpQueueError( pluploadL10n.upload_failed );

			break;

		case plupload.IO_ERROR:

			max = parseInt( up.settings.filters.max_file_size, 10 );

			if ( max > hundredmb && fileObj.size > hundredmb ) {

				wpFileError( fileObj, pluploadL10n.big_upload_failed.replace( '%1$s', '<a class="uploader-html" href="#">' ).replace( '%2$s', '</a>' ) );