Inventory_Presser_Location_Hours

class Inventory_Presser_Location_Hours extends WP_Widget
{
	const ID_BASE = '_invp_hours';

	/**
	 * __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,
			'Hours',
			array(
				'description' => __( 'Display hours of operation.', '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( empty( $instance['cb_display'] ) || ! is_array( $instance['cb_display'] ) )
		{
			return;
		}

		$cb_showclosed = (isset($instance['cb_showclosed']) && $instance['cb_showclosed'] == 'true');

		/**
		 * Hold the HTML that begins the widget until we're sure we're going to
		 * output something.
		 */
		$html = '';

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

		$title = apply_filters( 'widget_title', $instance['title'] );
		if ( ! empty( $title ) )
		{
			$html .= $args['before_title'] . $title . $args['after_title'];
		}
		$html .= '<div class="invp-hours">';

		// get all locations
		$location_info = get_terms( 'location', array( 'fields' => 'id=>name', 'hide_empty' => false ) );

		// loop through each location
		foreach ( $location_info as $term_id => $name )
		{
			//Does this address even have hours displayed by this instance of this widget?
			if( empty( $instance['cb_display'][$term_id] ) )
			{
				//No
				continue;
			}

			for( $h=1; $h<=Inventory_Presser_Taxonomies::LOCATION_MAX_HOURS; $h++ )
			{
				$hours_uid = get_term_meta( $term_id, 'hours_' . $h . '_uid', true );
				if( ! $hours_uid )
				{
					break;
				}

				//There are hours in is slot $h, has the user configured this widget to display it?
				if( ! in_array( $hours_uid, $instance['cb_display'][$term_id] ) )
				{
					//No
					continue;
				}

				/**
				 * The first time we reach this block, we can be sure we have
				 * some hours content to output in the widget, so dump the
				 * preamble $html.
				 */
				if( ! empty( $html ) )
				{
					echo $html;
					$html = '';
				}


				$hours_title = '';
				if( ! empty( $instance['cb_title'][$term_id] )
					&& is_array( $instance['cb_title'][$term_id] )
					&& in_array( $hours_uid, $instance['cb_title'][$term_id] ) )
				{
					$hours_title = sprintf( '<strong>%s</strong>', get_term_meta( $term_id, 'hours_' . $h . '_title', true ) );
				}
				echo apply_filters( 'invp_hours_title', $hours_title, $hours_uid );

				// get current day number, starting on a monday
				$current_weekday = date('w') - 1;
				$current_weekday = ($current_weekday == -1) ? 6 : $current_weekday;

				$start_of_week = get_option('start_of_week') -1;

				$hours_sets = Inventory_Presser_Taxonomies::get_hours( $term_id );
				$hours_set = array();
				foreach( $hours_sets as $set )
				{
					if( $hours_uid == $set['uid'] )
					{
						$hours_set = $set;
						break;
					}
				}
				$days = Inventory_Presser_Shortcode_Hours_Today::create_days_array_from_hours_array( $hours_set );
				$next_open_day = Inventory_Presser_Shortcode_Hours_Today::find_next_open_day( $days );

				echo '<table>';

				// output a row for each day
				for ($z = $start_of_week; $z < ($start_of_week + 7); $z++)
				{
					$i = ($z > 6) ? $z - 7 : $z;

					// do a check to make sure we want to output this row
					$echo_row = false;

					$open_by_appt = get_term_meta( $term_id, 'hours_' . $h . '_' . INVP::weekdays( $i ) . '_appt', true );
					$open = get_term_meta( $term_id, 'hours_' . $h . '_' . INVP::weekdays( $i ) . '_open', true );
					$close = get_term_meta( $term_id, 'hours_' . $h . '_' . INVP::weekdays( $i ) . '_close', true );

					if( ( 1 == $open_by_appt || ! empty( $open ) && ! empty( $close ) ) || $cb_showclosed )
					{
						$echo_row = true;
					}
					elseif( $i < 6 )
					{
						// check the remaining days, output current day if there are other displayed days following
						for( $r=( $i+1 ); $r<7; $r++ )
						{
							$future_open_by_appt = get_term_meta( $term_id, 'hours_' . $h . '_' . INVP::weekdays( $r ) . '_appt', true );
							$future_open = get_term_meta( $term_id, 'hours_' . $h . '_' . INVP::weekdays( $r ) . '_open', true );
							$future_close = get_term_meta( $term_id, 'hours_' . $h . '_' . INVP::weekdays( $r ) . '_close', true );
							if( 1 == $future_open_by_appt || ( ! empty( $future_open ) && ! empty( $future_close ) ) )
							{
								$echo_row = true;
								break;
							}
						}
						// if there are no remaining days to display, break out of loop
						if( ! $echo_row )
						{
							break;
						}
					}

					// output row
					if( $echo_row )
					{
						/**
						 * Highlight this row if it's today and we have not
						 * passed closing time, or highlight it if we're
						 * not open today or closed for the day and $i is 
						 * $next_open_day
						 */
						$current_row_class = '';
						if( ! empty( $days[$i] ) && 
							( ( $days[$i]->open_right_now() && $current_weekday == $i ) //if it's today and we're open, highlight the row
								|| ( $current_weekday != $i && $next_open_day->weekday-1 == $i && ! $days[$current_weekday]->open_right_now() ) ) )
						{							
							$current_row_class = ' class="day-highlight"';							
						}

						printf(
							'<tr%s><th>%s</th>',
							$current_row_class,
							array_values( INVP::weekdays() )[$i]
						);

						if( 1 == $open_by_appt && ! empty( $open ) && ! empty( $close ) )
						{
							printf(
								'<td colspan="2">%s - %s &amp; %s</td>',
								$open,
								$close,
								__( 'Appointment', 'inventory-presser' )
							);
						}
						elseif( 1 == $open_by_appt )
						{
							printf( '<td colspan="2">%s</td>', __( 'Appointment Only', 'inventory-presser' ) );
						}
						elseif( ! empty( $open ) && ! empty( $close ) )
						{
							printf(
								'<td>%s</td><td>%s</td>',
								$open,
								$close
							);
						}
						else
						{
							echo '<td colspan="2">Closed</td>';
						}
						echo '</tr>';
					}
				}
				echo '</table>';
			}
		}
		//Only output HTML here if $html has been emptied, that means it was echoed
		if( empty( $html ) )
		{
			echo '</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();
		$cb_title = isset($instance['cb_title']) ? $instance['cb_title'] : array();

		// get all locations
		$location_info = get_terms('location', array('fields'=>'id=>name', 'hide_empty'=>false));

		$hours_table = '<table><tbody>';

		// loop through each location, set up form
		foreach ( $location_info as $term_id => $name )
		{
			//Output a checkbox for every set of hours in this location
			for( $h=1; $h<=Inventory_Presser_Taxonomies::LOCATION_MAX_HOURS; $h++ )
			{
				//Are there hours in this slot?
				$hours_uid = get_term_meta( $term_id, 'hours_' . $h . '_uid', true );
				if( ! $hours_uid )
				{
					//No, we're done with this location
					break;
				}

				//Only do this once per location
				if( 1 == $h )
				{
					$hours_table .= sprintf(
						'<tr><td>%s</td><td>%s</td><td>%s</td></tr>',
						$name,
						__( 'Display', 'inventory-presser' ),
						__( 'Title', 'inventory-presser' )
					);
				}

				$title = get_term_meta( $term_id, 'hours_' . $h . '_title', true );
				if( empty( $title ) )
				{
					$title =  __( 'No title entered', 'inventory-presser' );
				}

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

				$cb_title_text = sprintf(
					'<input type="checkbox" id="%s" name="%s" value="%s"%s />',
					$this->get_field_id('cb_title_' . $hours_uid ),
					$this->get_field_name('cb_title['.$term_id.'][]'),
					$hours_uid,
					checked( true, (isset($cb_title[$term_id]) && is_array($cb_title[$term_id]) && in_array($hours_uid, $cb_title[$term_id])), false )
				);

				$hours_table .= sprintf(
					'<tr><td><strong>%s</strong></td><td>%s</td><td>%s</td></tr>',
					$title,
					$cb_display_text,
					$cb_title_text
				);
			}
		}

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

		// Widget admin form
		$title = isset($instance[ 'title' ]) ? $instance[ 'title' ] : __( 'Hours', 'inventory-presser' );
		?>
		<p>
		<label for="<?php echo $this->get_field_id('title'); ?>"><?php _e( 'Main Title', '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('cb_showclosed'); ?>"><?php _e( 'Show All Closed Days', 'inventory-presser' ); ?></label>
		<input type="checkbox" id="<?php echo $this->get_field_id('cb_showclosed'); ?>" name="<?php echo $this->get_field_name('cb_showclosed'); ?>" value="true"<?php checked( (isset($instance[ 'cb_showclosed' ]) && $instance[ 'cb_showclosed' ] == 'true') ); ?>>
		</p>
		<p><?php echo $hours_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['cb_display'] = ( !empty( $new_instance['cb_display'] ) ) ? $new_instance['cb_display'] : array();
		$instance['cb_title'] = ( !empty( $new_instance['cb_title'] ) ) ? $new_instance['cb_title'] : array();
		$instance['cb_showclosed'] = ( !empty( $new_instance['cb_showclosed'] ) ) ? $new_instance['cb_showclosed'] : '';
		return $instance;
	}
}