Inventory_Presser_Location_Phones

class Inventory_Presser_Location_Phones extends WP_Widget
{
	const ID_BASE = '_invp_phone';

	/**
	 * formats
	 * 
	 * Defines the formats for the widget's display.
	 *
	 * @return array
	 */
	function formats()
	{
		return array(
			'small_left_label' => array(
				'selector'    => __( 'Small, left label', 'inventory-presser' ),
				'uses_labels' => true,
				'before'      => '<table>',
				'repeater'    => '<tr><th>%1$s</th><td class="phone-link"><a href="tel:+%2$s">%3$s</a></td><tr>',
				'after'       => '</table>',
			),
			'large_no_label' => array(
				'selector'    => __( 'Large, no label', 'inventory-presser' ),
				'uses_labels' => false,
				'before'      => '',
				'repeater'    => '<h2><a href="tel:+%1$s">%2$s</a></h2>',
				'after'       => '',
			),
			'large_table_left' => array(
				'selector'    => __( 'Large tabled, left label', 'inventory-presser' ),
				'uses_labels' => true,
				'before'      => '<table>',
				'repeater'    => '<tr><th>%1$s</th><td class="phone-link"><a href="tel:+%2$s">%3$s</a></td><tr>',
				'after'       => '</table>',
			),
			'large_left_label' => array(
				'selector'    => __( 'Large, small left label', 'inventory-presser' ),
				'uses_labels' => true,
				'before'      => '<table>',
				'repeater'    => '<tr><th>%1$s</th><td><h2><a href="tel:+%2$s">%3$s</a></h2></td><tr>',
				'after'       => '</table>',
			),
			'large_right_label' => array(
				'selector'    => __( 'Large, small right label', 'inventory-presser' ),
				'uses_labels' => true,
				'before'      => '<table>',
				'repeater'    => '<tr><td><h2><a href="tel:+%2$s">%3$s</a></h2></td><th>%1$s</th><tr>',
				'after'       => '</table>',
			),
			'single_line_labels' => array(
				'selector'    => __( 'Single line with labels', 'inventory-presser' ),
				'uses_labels' => true,
				'before'      => '',
				'repeater'    => '<span>%1$s:</span> <a href="tel:+%2$s">%3$s</a>',
				'after'       => '',
			),
			'single_line_no_labels' => array(
				'selector'    => __( 'Single line no labels', 'inventory-presser' ),
				'uses_labels' => false,
				'before'      => '',
				'repeater'    => '<span><a href="tel:+%1$s">%2$s</a></span>',
				'after'       => '',
			),
		);
	}
	
	/**
	 * __construct
	 *
	 * Calls the parent class' contructor and adds a hook that will delete the
	 * option that stores this widget's data when the plugin's delete all data
	 * method is run.
	 * 
	 * @return void
	 */
	function __construct()
	{
		parent::__construct(
			self::ID_BASE,
			__( 'Phone Number', 'inventory-presser' ),
			array( 'description' => __( 'Display one or more phone numbers.', 'inventory-presser' ), )
		);

		add_action( 'invp_delete_all_data', array( $this, 'delete_option' ) );
	}
	
	/**
	 * delete_option
	 * 
	 * Deletes the option that stores this widget's data.
	 *
	 * @return void
	 */
	public function delete_option()
	{
		delete_option( 'widget_' . self::ID_BASE );
	}

	/**
	 * widget
	 * 
	 * Outputs the widget front-end HTML
	 *
	 * @param  array $args
	 * @param  array $instance
	 * @return void
	 */
	public function widget( $args, $instance )
	{
		if( ! is_array( $instance['cb_display'] ) || empty( $instance['cb_display'] ) )
		{
			return;
		}

		// before and after widget arguments are defined by themes
		echo $args['before_widget'];

		$title = apply_filters( 'widget_title', $instance['title'] );
		if( ! empty( $title ) )
		{
			echo $args['before_title'] . $title . $args['after_title'];
		}

		$format_slugs = array_keys( $this->formats() );
		$format = in_array($instance['format'], $format_slugs) ? $instance['format'] : $format_slugs[0];

		printf(
			'<div class="invp-%s">%s',
			$format,
			$this->formats()[$format]['before']
		);

		// loop through each location
		$location_info = get_terms( 'location', array( 'fields' => 'id=>name', 'hide_empty' => false ) );
		foreach( $location_info as $term_id => $name )
		{
			//Does this address even have a phone number displayed by this instance of this widget?
			if( empty( $instance['cb_display'][$term_id] ) )
			{
				//No
				continue;
			}

			for( $p=1; $p<=Inventory_Presser_Taxonomies::LOCATION_MAX_PHONES; $p++ )
			{
				$phone_uid = get_term_meta( $term_id, 'phone_' . $p . '_uid', true );
				if( ! $phone_uid )
				{
					break;
				}

				//There is a phone number is slot $p, has the user configured this widget to display it?
				if( in_array( $phone_uid, $instance['cb_display'][$term_id] ) )
				{
					//Yes, output this number
					$number = get_term_meta( $term_id, 'phone_' . $p . '_number', true );
					if( $this->formats()[$format]['uses_labels'] )
					{
						$description = get_term_meta( $term_id, 'phone_' . $p . '_description', true );
						printf( $this->formats()[$format]['repeater'], $description, INVP::prepare_phone_number_for_link( $number ), $number );
					}
					else
					{
						printf( $this->formats()[$format]['repeater'], INVP::prepare_phone_number_for_link( $number ), $number );
					}
				}
			}
		}

		echo $this->formats()[$format]['after']
			. '</div>'
			. $args['after_widget'];
	}

	/**
	 * form
	 * 
	 * Outputs the widget settings form that is shown in the dashboard.
	 *
	 * @param  array $instance
	 * @return void
	 */
	public function form( $instance )
	{
		$cb_display = isset($instance['cb_display']) ? $instance['cb_display'] : array();
		// get all locations
		$location_info = get_terms('location', array('fields'=>'id=>name', 'hide_empty'=>false));
		$phones_table = '<table><tbody>';

		// loop through each location, set up form
		foreach( $location_info as $term_id => $name )
		{
			//Output a checkbox for every phone number in this location
			for( $p=1; $p<=Inventory_Presser_Taxonomies::LOCATION_MAX_PHONES; $p++ )
			{
				//Is there a phone number in this slot?
				$phone_uid = get_term_meta( $term_id, 'phone_' . $p . '_uid', true );
				if( ! $phone_uid )
				{
					//No, we're done with this location
					break;
				}

				//Only do this once per location
				if( 1 == $p )
				{
					$phones_table .= sprintf('<tr><td colspan="3"><strong>%s</strong></td></tr>', $name);
				}

				$number = get_term_meta( $term_id, 'phone_' . $p . '_number', true );
				$description = get_term_meta( $term_id, 'phone_' . $p . '_description', true );
				$checkbox_id = $this->get_field_id( 'cb_display_' . $phone_uid );

				$cb_display_text = sprintf(
					'<input type="checkbox" id="%s" name="%s" value="%s"%s />',
					$checkbox_id,
					$this->get_field_name( 'cb_display[' . $term_id . '][]' ),
					$phone_uid,
					checked( (isset($cb_display[$term_id]) && is_array($cb_display[$term_id]) && in_array($phone_uid, $cb_display[$term_id])), true, false )
				);

				$phones_table .= sprintf(
					'<tr><td>%s</td><td><label for="%s">%s</label></td><td><label for="%s">%s</label></td></tr>',
					$cb_display_text,
					$checkbox_id,
					$description,
					$checkbox_id,
					$number
				);
			}
		}

		$phones_table .= '</tbody></table>';

		// Widget admin form
		$title = isset($instance['title']) ? $instance['title'] : '';
		?>
		<p>
			<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title (optional):', 'inventory-presser' ); ?></label>
			<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
		</p>
		<p>
			<label for="<?php echo $this->get_field_id('format'); ?>"><?php _e( 'Display Format:', 'inventory-presser' ); ?></label>
			<select class="widefat" id="<?php echo $this->get_field_id('format'); ?>" name="<?php echo $this->get_field_name('format'); ?>">
			<?php
			$format = isset($instance['format']) ? $instance['format'] : current( array_keys( $this->formats() ) );
			foreach ($this->formats() as $key => $format_array) {
				printf(
					'<option value="%s"%s>%s</option>',
					$key,
					selected( $format == $key, true, false ),
					$format_array['selector']
				);
			}
			?>
			</select>
		</p>
		<p><?php echo $phones_table; ?></p>
		<?php
	}

	/**
	 * update
	 *
	 * Saves the widget settings when a dashboard user clicks the Save button.
	 * 
	 * @param  array $new_instance
	 * @param  array $old_instance
	 * @return array The updated array full of settings
	 */
	public function update( $new_instance, $old_instance )
	{
		$instance = array();
		$instance['title'] = ( !empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';
		$instance['format'] = ( !empty( $new_instance['format'] ) ) ? $new_instance['format'] : current( array_keys( $this->formats() ) );
		$instance['cb_display'] = ( !empty( $new_instance['cb_display'] ) ) ? $new_instance['cb_display'] : array();
		return $instance;
	}
}