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<?php
/**
 * Tutor taxonomies
 *
 * @package Tutor\Taxonomies
 * @author Themeum <support@themeum.com>
 * @link https://themeum.com
 * @since 1.0.0
 */

namespace TUTOR;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Manage taxonomies
 *
 * @since 1.0.0
 */
class Taxonomies {

/**
	 * Register hooks
	 *
	 * @since 1.0.0
	 */
	public function __construct() {
		add_action( 'course-category_add_form_fields', array( $this, 'add_category_fields' ) );
		add_action( 'course-category_edit_form_fields', array( $this, 'edit_category_fields' ) );

add_action( 'created_term', array( $this, 'save_category_fields' ), 10, 3 );
		add_action( 'edit_term', array( $this, 'save_category_fields' ), 10, 3 );

add_filter( 'manage_edit-course-category_columns', array( $this, 'course_category_columns' ) );
		add_filter( 'manage_course-category_custom_column', array( $this, 'course_category_column' ), 10, 3 );
	}

/**
	 * Add category fields
	 *
	 * @return void
	 */
	public function add_category_fields() {
		?>
		<div class="form-field term-thumbnail-wrap">
			<label><?php esc_html_e( 'Thumbnail', 'tutor' ); ?></label>
			<div id="course-category_thumbnail" style="float: left; margin-right: 10px;"><img src="<?php echo esc_url( tutor_placeholder_img_src() ); ?>" width="60px" height="60px" /></div>
			<div style="line-height: 60px;">
				<input type="hidden" id="course-category_thumbnail_id" name="course_category_thumbnail_id" />
				<button type="button" class="upload_image_button button"><?php esc_html_e( 'Upload/Add image', 'tutor' ); ?></button>
				<button type="button" class="remove_image_button button"><?php esc_html_e( 'Remove image', 'tutor' ); ?></button>
			</div>
			<script type="text/javascript">

// Only show the "remove image" button when needed
				if ( ! jQuery( '#course-category_thumbnail_id' ).val() ) {
					jQuery( '.remove_image_button' ).hide();
				}

// Uploading files
				var file_frame;

jQuery( document ).on( 'click', '.upload_image_button', function( event ) {

event.preventDefault();

// If the media frame already exists, reopen it.
					if ( file_frame ) {
						file_frame.open();
						return;
					}

// Create the media frame.
					file_frame = wp.media.frames.downloadable_file = wp.media({
						title: '<?php esc_html_e( 'Choose an image', 'tutor' ); ?>',
						button: {
							text: '<?php esc_html_e( 'Use image', 'tutor' ); ?>'
						},
						multiple: false
					});

// When an image is selected, run a callback.
					file_frame.on( 'select', function() {
						var attachment           = file_frame.state().get( 'selection' ).first().toJSON();
						var attachment_thumbnail = attachment.sizes.thumbnail || attachment.sizes.full;

jQuery( '#course-category_thumbnail_id' ).val( attachment.id );
						jQuery( '#course-category_thumbnail' ).find( 'img' ).attr( 'src', attachment_thumbnail.url );
						jQuery( '.remove_image_button' ).show();
					});

// Finally, open the modal.
					file_frame.open();
				});

jQuery( document ).on( 'click', '.remove_image_button', function() {
					jQuery( '#course-category_thumbnail' ).find( 'img' ).attr( 'src', '<?php echo esc_js( tutor_placeholder_img_src() ); ?>' );
					jQuery( '#course-category_thumbnail_id' ).val( '' );
					jQuery( '.remove_image_button' ).hide();
					return false;
				});

</script>
			<div class="clear"></div>
		</div>
		<?php
	}

/**
	 * Edit category fields
	 *
	 * @since 1.0.0
	 *
	 * @param mixed $term term.
	 *
	 * @return void
	 */
	public function edit_category_fields( $term ) {

$thumbnail_id = absint( get_term_meta( $term->term_id, 'thumbnail_id', true ) );

if ( $thumbnail_id ) {
			$image = wp_get_attachment_thumb_url( $thumbnail_id );
		} else {
			$image = tutor_placeholder_img_src();
		}
		?>

<div class="form-field term-thumbnail-wrap">
					<div id="course-category_thumbnail" style="float: left; margin-right: 10px;"><img src="<?php echo esc_url( $image ); ?>" width="60px" height="60px" /></div>
					<div style="line-height: 60px;">
						<input type="hidden" id="course-category_thumbnail_id" name="course_category_thumbnail_id" value="<?php echo esc_attr( $thumbnail_id ); ?>" />
						<button type="button" class="upload_image_button button"><?php esc_html_e( 'Upload/Add image', 'tutor' ); ?></button>
						<button type="button" class="remove_image_button button"><?php esc_html_e( 'Remove image', 'tutor' ); ?></button>
					</div>
					<script type="text/javascript">

// Only show the "remove image" button when needed
						if ( ! jQuery( '#course-category_thumbnail_id' ).val() ) {
							jQuery( '.remove_image_button' ).hide();
						}

// Uploading files
						var file_frame;

jQuery( document ).on( 'click', '.upload_image_button', function( event ) {

event.preventDefault();

// If the media frame already exists, reopen it.
							if ( file_frame ) {
								file_frame.open();
								return;
							}

// Create the media frame.
							file_frame = wp.media.frames.downloadable_file = wp.media({
								title: '<?php esc_html_e( 'Choose an image', 'tutor' ); ?>',
								button: {
									text: '<?php esc_html_e( 'Use image', 'tutor' ); ?>'
								},
								multiple: false
							});

// When an image is selected, run a callback.
							file_frame.on( 'select', function() {
								var attachment           = file_frame.state().get( 'selection' ).first().toJSON();
								var attachment_thumbnail = attachment.sizes.thumbnail || attachment.sizes.full;

jQuery( '#course-category_thumbnail_id' ).val( attachment.id );
								jQuery( '#course-category_thumbnail' ).find( 'img' ).attr( 'src', attachment_thumbnail.url );
								jQuery( '.remove_image_button' ).show();
							});

// Finally, open the modal.
							file_frame.open();
						});

jQuery( document ).on( 'click', '.remove_image_button', function() {
							jQuery( '#course-category_thumbnail' ).find( 'img' ).attr( 'src', '<?php echo esc_js( tutor_placeholder_img_src() ); ?>' );
							jQuery( '#course-category_thumbnail_id' ).val( '' );
							jQuery( '.remove_image_button' ).hide();
							return false;
						});

</script>
					<div class="clear"></div>
				</div>

</td>
		</tr>
		<?php
	}

/**
	 * Save Course Category Thumbnail
	 *
	 * @since 1.0.0
	 *
	 * @param int    $term_id term id.
	 * @param string $tt_id tt id.
	 * @param string $taxonomy taxonomy.
	 *
	 * @return void
	 */
	public function save_category_fields( $term_id, $tt_id = '', $taxonomy = '' ) {
		$thumbnail_id = Input::post( 'course_category_thumbnail_id', 0, Input::TYPE_INT );
		if ( Input::has( 'course_category_thumbnail_id' ) && 'course-category' === $taxonomy ) {
			update_term_meta( $term_id, 'thumbnail_id', absint( $thumbnail_id ) );
		}
	}

/**
	 * Course category edit columns
	 *
	 * @since 1.0.0
	 *
	 * @param array $columns columns.
	 *
	 * @return array
	 */
	public function course_category_columns( $columns ) {
		$new_columns = array();

if ( isset( $columns['cb'] ) ) {
			$new_columns['cb'] = $columns['cb'];
			unset( $columns['cb'] );
		}

$new_columns['thumb'] = __( 'Image', 'tutor' );

$columns           = array_merge( $new_columns, $columns );
		$columns['handle'] = '';

return $columns;
	}

/**
	 * Course category columns
	 *
	 * @param array $columns columns.
	 * @param mixed $column column name.
	 * @param int   $id term id.
	 *
	 * @return mixed
	 */
	public function course_category_column( $columns, $column, $id ) {
		if ( 'thumb' === $column ) {
			$thumbnail_id = get_term_meta( $id, 'thumbnail_id', true );

if ( $thumbnail_id ) {
				$image = wp_get_attachment_thumb_url( $thumbnail_id );
			} else {
				$image = tutor_placeholder_img_src();
			}

// Prevent esc_url from breaking spaces in urls for image embeds. Ref: https://core.trac.wordpress.org/ticket/23605 .
			$image    = str_replace( ' ', '%20', $image );
			$columns .= '<img src="' . esc_url( $image ) . '" alt="' . __( 'Thumbnail', 'tutor' ) . '" class="wp-post-image" height="48" width="48" />';
		}
		if ( 'handle' === $column ) {
			$columns .= '<input type="hidden" name="term_id" value="' . $id . '" />';
		}
		return $columns;
	}
}