<?php
/**
 * Customizer Control: repeater.
 *
 * @package     Kirki
 * @subpackage  Controls
 * @copyright   Copyright (c) 2016, Aristeides Stathopoulos
 * @license     http://opensource.org/licenses/https://opensource.org/licenses/MIT
 * @since       2.0
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'Kirki_Controls_Repeater_Control' ) ) {

	/**
	 * Repeater control
	 */
	class Kirki_Controls_Repeater_Control extends Kirki_Customize_Control {

		/**
		 * The control type.
		 *
		 * @access public
		 * @var string
		 */
		public $type = 'repeater';

		/**
		 * The fields that each container row will contain.
		 *
		 * @access public
		 * @var array
		 */
		public $fields = array();

		/**
		 * Will store a filtered version of value for advenced fields (like images).
		 *
		 * @access protected
		 * @var array
		 */
		protected $filtered_value = array();

		/**
		 * The row label
		 *
		 * @access public
		 * @var array
		 */
		public $row_label = array();

		/**
		 * Constructor.
		 * Supplied `$args` override class property defaults.
		 * If `$args['settings']` is not defined, use the $id as the setting ID.
		 *
		 * @param WP_Customize_Manager $manager Customizer bootstrap instance.
		 * @param string               $id      Control ID.
		 * @param array                $args    {@see WP_Customize_Control::__construct}.
		 */
		public function __construct( $manager, $id, $args = array() ) {

			parent::__construct( $manager, $id, $args );

			// Set up defaults for row labels.
			$this->row_label = array(
				'type' => 'text',
				'value' => $this->l10n['row'],
				'field' => false,
			);

			// Validating args for row labels.
			if ( isset( $args['row_label'] ) && is_array( $args['row_label'] ) && ! empty( $args['row_label'] ) ) {

				// Validating row label type.
				if ( isset( $args['row_label']['type'] ) && ( 'text' === $args['row_label']['type'] || 'field' === $args['row_label']['type'] ) ) {
					$this->row_label['type'] = $args['row_label']['type'];
				}

				// Validating row label type.
				if ( isset( $args['row_label']['value'] ) && ! empty( $args['row_label']['value'] ) ) {
					$this->row_label['value'] = esc_attr( $args['row_label']['value'] );
				}

				// Validating row label field.
				if ( isset( $args['row_label']['field'] ) && ! empty( $args['row_label']['field'] ) && isset( $args['fields'][ esc_attr( $args['row_label']['field'] ) ] ) ) {
					$this->row_label['field'] = esc_attr( $args['row_label']['field'] );
				} else {

					// If from field is not set correctly, making sure standard is set as the type.
					$this->row_label['type'] = 'text';
				}
			}

			if ( empty( $this->button_label ) ) {
				$this->button_label = $this->l10n['add-new'] . ' ' . $this->row_label['value'];
			}

			if ( empty( $args['fields'] ) || ! is_array( $args['fields'] ) ) {
				$args['fields'] = array();
			}

			// An array to store keys of fields that need to be filtered.
			$media_fields_to_filter = array();

			foreach ( $args['fields'] as $key => $value ) {
				if ( ! isset( $value['default'] ) ) {
					$args['fields'][ $key ]['default'] = '';
				}

				if ( ! isset( $value['label'] ) ) {
					$args['fields'][ $key ]['label'] = '';
				}
				$args['fields'][ $key ]['id'] = $key;

				// We check if the filed is an uploaded media ( image , file, video, etc.. ).
				if ( isset( $value['type'] ) && ( 'image' === $value['type'] || 'cropped_image' === $value['type'] || 'upload' === $value['type'] ) ) {

					// We add it to the list of fields that need some extra filtering/processing.
					$media_fields_to_filter[ $key ] = true;
				}

				// If the field is a dropdown-pages field then add it to args.
				if ( isset( $value['type'] ) && ( 'dropdown-pages' === $value['type'] ) ) {

					$dropdown = wp_dropdown_pages(
						array(
							'name'              => '',
							'echo'              => 0,
							'show_option_none'  => esc_attr( $this->l10n['select-page'] ),
							'option_none_value' => '0',
							'selected'          => '',
						)
					);

					// Hackily add in the data link parameter.
					$dropdown = str_replace( '<select', '<select data-field="' . esc_attr( $args['fields'][ $key ]['id'] ) . '"' . $this->get_link(), $dropdown );

					$args['fields'][ $key ]['dropdown'] = $dropdown;
				}
			}

			$this->fields = $args['fields'];

			// Now we are going to filter the fields.
			// First we create a copy of the value that would be used otherwise.
			$this->filtered_value = $this->value();

			if ( is_array( $this->filtered_value ) && ! empty( $this->filtered_value ) ) {

				// We iterate over the list of fields.
				foreach ( $this->filtered_value as &$filtered_value_field ) {

					if ( is_array( $filtered_value_field ) && ! empty( $filtered_value_field ) ) {

						// We iterate over the list of properties for this field.
						foreach ( $filtered_value_field as $key => &$value ) {

							// We check if this field was marked as requiring extra filtering (in this case image, cropped_images, upload).
							if ( array_key_exists( $key, $media_fields_to_filter ) ) {

								// What follows was made this way to preserve backward compatibility.
								// The repeater control use to store the URL for images instead of the attachment ID.
								// We check if the value look like an ID (otherwise it's probably a URL so don't filter it).
								if ( is_numeric( $value ) ) {

									// "sanitize" the value.
									$attachment_id = (int) $value;

									// Try to get the attachment_url.
									$url = wp_get_attachment_url( $attachment_id );

									$filename = basename( get_attached_file( $attachment_id ) );

									// If we got a URL.
									if ( $url ) {

										// 'id' is needed for form hidden value, URL is needed to display the image.
										$value = array(
											'id'  => $attachment_id,
											'url' => $url,
											'filename' => $filename,
										);
									}
								}
							}
						}
					}
				}
			}
		}

		/**
		 * Refresh the parameters passed to the JavaScript via JSON.
		 *
		 * @access public
		 */
		public function to_json() {
			parent::to_json();

			$fields = $this->fields;

			$this->json['fields'] = $fields;
			$this->json['row_label'] = $this->row_label;

			// If filtered_value has been set and is not empty we use it instead of the actual value.
			if ( is_array( $this->filtered_value ) && ! empty( $this->filtered_value ) ) {
				$this->json['value'] = $this->filtered_value;
			}
		}

		/**
		 * Enqueue control related scripts/styles.
		 *
		 * @access public
		 */
		public function enqueue() {

			// If we have a color picker field we need to enqueue the Wordpress Color Picker style and script.
			if ( is_array( $this->fields ) && ! empty( $this->fields ) ) {
				foreach ( $this->fields as $field ) {
					if ( isset( $field['type'] ) && 'color' === $field['type'] ) {
						wp_enqueue_script( 'wp-color-picker' );
						wp_enqueue_style( 'wp-color-picker' );
						break;
					}
				}

				foreach ( $this->fields as $field ) {
					if ( isset( $field['type'] ) && 'dropdown-pages' === $field['type'] ) {
						wp_enqueue_script( 'kirki-dropdown-pages' );
						break;
					}
				}
			}

			wp_enqueue_script( 'kirki-repeater' );
		}

		/**
		 * Render the control's content.
		 * Allows the content to be overriden without having to rewrite the wrapper in $this->render().
		 *
		 * @access protected
		 */
		protected function render_content() {
			?>
			<?php if ( '' !== $this->tooltip ) : ?>
				<a href="#" class="tooltip hint--left" data-hint="<?php echo esc_html( $this->tooltip ); ?>"><span class='dashicons dashicons-info'></span></a>
			<?php endif; ?>
			<label>
				<?php if ( ! empty( $this->label ) ) : ?>
					<span class="customize-control-title"><?php echo esc_html( $this->label ); ?></span>
				<?php endif; ?>
				<?php if ( ! empty( $this->description ) ) : ?>
					<span class="description customize-control-description"><?php echo wp_kses_post( $this->description ); ?></span>
				<?php endif; ?>
				<input type="hidden" {{{ data.inputAttrs }}} value="" <?php echo wp_kses_post( $this->get_link() ); ?> />
			</label>

			<ul class="repeater-fields"></ul>

			<?php if ( isset( $this->choices['limit'] ) ) : ?>
				<p class="limit"><?php printf( esc_html( $this->l10n['limit-rows'] ), esc_html( $this->choices['limit'] ) ); ?></p>
			<?php endif; ?>
			<button class="button-secondary repeater-add"><?php echo esc_html( $this->button_label ); ?></button>

			<?php

			$this->repeater_js_template();

		}

		/**
		 * An Underscore (JS) template for this control's content (but not its container).
		 * Class variables for this control class are available in the `data` JS object.
		 *
		 * @access public
		 */
		public function repeater_js_template() {
			?>
			<script type="text/html" class="customize-control-repeater-content">
				<# var field; var index = data.index; #>
				<# data.kirki_config = '<?php echo esc_attr( $this->kirki_config ); ?>'; #>

				<li class="repeater-row minimized" data-row="{{{ index }}}">

					<div class="repeater-row-header">
						<span class="repeater-row-label"></span>
						<i class="dashicons dashicons-arrow-down repeater-minimize"></i>
					</div>
					<div class="repeater-row-content">
						<# _.each( data, function( field, i ) { #>

							<div class="repeater-field repeater-field-{{{ field.type }}}">

								<# if ( 'text' === field.type || 'url' === field.type || 'link' === field.type || 'email' === field.type || 'tel' === field.type || 'date' === field.type ) { #>

									<# if ( 'link' === field.type ) { #>
										<# field.type = 'url' #>
									<# } #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{ field.label }}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{ field.description }}</span>
										<# } #>
										<input type="{{field.type}}" name="" value="{{{ field.default }}}" data-field="{{{ field.id }}}">
									</label>

								<# } else if ( 'hidden' === field.type ) { #>

									<input type="hidden" data-field="{{{ field.id }}}" <# if ( field.default ) { #> value="{{{ field.default }}}" <# } #> />

								<# } else if ( 'checkbox' === field.type ) { #>

									<label>
										<input type="checkbox" value="true" data-field="{{{ field.id }}}" <# if ( field.default ) { #> checked="checked" <# } #> /> {{ field.label }}
										<# if ( field.description ) { #>
											{{ field.description }}
										<# } #>
									</label>

								<# } else if ( 'select' === field.type ) { #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{ field.label }}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{ field.description }}</span>
										<# } #>
										<select data-field="{{{ field.id }}}">
											<# _.each( field.choices, function( choice, i ) { #>
												<option value="{{{ i }}}" <# if ( field.default == i ) { #> selected="selected" <# } #>>{{ choice }}</option>
											<# }); #>
										</select>
									</label>

								<# } else if ( 'dropdown-pages' === field.type ) { #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{{ data.label }}}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{{ field.description }}}</span>
										<# } #>
										<div class="customize-control-content repeater-dropdown-pages">{{{ field.dropdown }}}</div>
									</label>

								<# } else if ( 'radio' === field.type ) { #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{ field.label }}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{ field.description }}</span>
										<# } #>

										<# _.each( field.choices, function( choice, i ) { #>
											<label>
												<input type="radio" name="{{{ field.id }}}{{ index }}" data-field="{{{ field.id }}}" value="{{{ i }}}" <# if ( field.default == i ) { #> checked="checked" <# } #>> {{ choice }} <br/>
											</label>
										<# }); #>
									</label>

								<# } else if ( 'radio-image' === field.type ) { #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{ field.label }}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{ field.description }}</span>
										<# } #>

										<# _.each( field.choices, function( choice, i ) { #>
											<input type="radio" id="{{{ field.id }}}_{{ index }}_{{{ i }}}" name="{{{ field.id }}}{{ index }}" data-field="{{{ field.id }}}" value="{{{ i }}}" <# if ( field.default == i ) { #> checked="checked" <# } #>>
												<label for="{{{ field.id }}}_{{ index }}_{{{ i }}}">
													<img src="{{ choice }}">
												</label>
											</input>
										<# }); #>
									</label>

								<# } else if ( 'color' === field.type ) { #>

									<# var defaultValue = '';
							        if ( field.default ) {
							            if ( '#' !== field.default.substring( 0, 1 ) ) {
							                defaultValue = '#' + field.default;
							            } else {
							                defaultValue = field.default;
							            }
							            defaultValue = ' data-default-color=' + defaultValue; // Quotes added automatically.
							        } #>
							        <label>
							            <# if ( field.label ) { #>
							                <span class="customize-control-title">{{{ field.label }}}</span>
							            <# } #>
							            <# if ( field.description ) { #>
							                <span class="description customize-control-description">{{{ field.description }}}</span>
							            <# } #>
							            <input class="color-picker-hex" type="text" maxlength="7" placeholder="<?php echo esc_attr( $this->l10n['hex-value'] ); ?>"  value="{{{ field.default }}}" data-field="{{{ field.id }}}" {{ defaultValue }} />

							        </label>

								<# } else if ( 'textarea' === field.type ) { #>

									<# if ( field.label ) { #>
										<span class="customize-control-title">{{ field.label }}</span>
									<# } #>
									<# if ( field.description ) { #>
										<span class="description customize-control-description">{{ field.description }}</span>
									<# } #>
									<textarea rows="5" data-field="{{{ field.id }}}">{{ field.default }}</textarea>

								<# } else if ( field.type === 'image' || field.type === 'cropped_image' ) { #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{ field.label }}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{ field.description }}</span>
										<# } #>
									</label>

									<figure class="kirki-image-attachment" data-placeholder="<?php echo esc_attr( $this->l10n['no-image-selected'] ); ?>" >
										<# if ( field.default ) { #>
											<# var defaultImageURL = ( field.default.url ) ? field.default.url : field.default; #>
											<img src="{{{ defaultImageURL }}}">
										<# } else { #>
											<?php echo esc_attr( $this->l10n['no-image-selected'] ); ?>
										<# } #>
									</figure>

									<div class="actions">
										<button type="button" class="button remove-button<# if ( ! field.default ) { #> hidden<# } #>"><?php echo esc_attr( $this->l10n['remove'] ); ?></button>
										<button type="button" class="button upload-button" data-label=" <?php echo esc_attr( $this->l10n['add-image'] ); ?>" data-alt-label="<?php echo esc_attr( $this->l10n['change-image'] ); ?>" >
											<# if ( field.default ) { #>
												<?php echo esc_attr( $this->l10n['change-image'] ); ?>
											<# } else { #>
												<?php echo esc_attr( $this->l10n['add-image'] ); ?>
											<# } #>
										</button>
										<# if ( field.default.id ) { #>
											<input type="hidden" class="hidden-field" value="{{{ field.default.id }}}" data-field="{{{ field.id }}}" >
										<# } else { #>
											<input type="hidden" class="hidden-field" value="{{{ field.default }}}" data-field="{{{ field.id }}}" >
										<# } #>
									</div>

								<# } else if ( field.type === 'upload' ) { #>

									<label>
										<# if ( field.label ) { #>
											<span class="customize-control-title">{{ field.label }}</span>
										<# } #>
										<# if ( field.description ) { #>
											<span class="description customize-control-description">{{ field.description }}</span>
										<# } #>
									</label>

									<figure class="kirki-file-attachment" data-placeholder="<?php echo esc_attr( $this->l10n['no-file-selected'] ); ?>" >
										<# if ( field.default ) { #>
											<# var defaultFilename = ( field.default.filename ) ? field.default.filename : field.default; #>
											<span class="file"><span class="dashicons dashicons-media-default"></span> {{ defaultFilename }}</span>
										<# } else { #>
											<?php echo esc_attr( $this->l10n['no-file-selected'] ); ?>
										<# } #>
									</figure>

									<div class="actions">
										<button type="button" class="button remove-button<# if ( ! field.default ) { #> hidden<# } #>"></button>
										<button type="button" class="button upload-button" data-label="<?php echo esc_attr( $this->l10n['add-file'] ); ?>" data-alt-label="<?php echo esc_attr( $this->l10n['change-file'] ); ?>" >
											<# if ( field.default ) { #>
												<?php echo esc_attr( $this->l10n['change-file'] ); ?>
											<# } else { #>
												<?php echo esc_attr( $this->l10n['add-file'] ); ?>
											<# } #>
										</button>
										<# if ( field.default.id ) { #>
											<input type="hidden" class="hidden-field" value="{{{ field.default.id }}}" data-field="{{{ field.id }}}" >
										<# } else { #>
											<input type="hidden" class="hidden-field" value="{{{ field.default }}}" data-field="{{{ field.id }}}" >
										<# } #>
									</div>

								<# } else if ( 'custom' === field.type ) { #>

									<# if ( field.label ) { #>
										<span class="customize-control-title">{{ field.label }}</span>
									<# } #>
									<# if ( field.description ) { #>
										<span class="description customize-control-description">{{ field.description }}</span>
									<# } #>
									<div data-field="{{{ field.id }}}">{{{ field.default }}}</div>

								<# } #>

							</div>
						<# }); #>
						<button type="button" class="button-link repeater-row-remove"><?php echo esc_attr( $this->l10n['remove'] ); ?></button>
					</div>
				</li>
			</script>
			<?php
		}
	}
}
