<?php

// * ---------------------------------------------------------------------------    
// 
//       __ __  __
//     /  /   /   /     __/__/__
//     \ /   /   /  __   /  /  __  (/__
//      /   /   / /  /  /  /  /__) /  /
//     /   /   / (__/__/_ /__/____/  /_/
//             \
//               SOLUTIONS
// 
// 
//	=Components - Flexible - Grid
//
// 	Setup and include the grid ACF options
//
// ---------------------------------------------------------------------------- *


class Mttr_Component_Grid {

	var $data;
	var $styles = '';
	var $component_name = 'c-grid';


	// ------------------------------------------------
	//	Initial setup
	// ------------------------------------------------
	function __construct( $hook = false, $priority = 10, $data = array() ) {

		if ( empty( $data ) ) {
		
			$data = $this->get_data( get_the_ID() );

		}

		// Render the component
		if ( !empty( $hook ) ) {

			$this->data = $data;

			// Output the styles in the head
			add_action( 'wp_enqueue_scripts', function() {

				$this->render_styles( $this->styles );

			}, $priority );

			add_action( $hook, function() {

				$this->render_component( $this->data );

			}, $priority );

		// Setup the component
		} else {

			// Set up the ACF fields
			$this->add_acf_fields();

		}

	}




	// ------------------------------------------------
	//	Begin rendering the component styles
	// ------------------------------------------------
	function render_styles() {

		wp_add_inline_style( mttr_theme_main_css_slug(), $this->styles );

	}




	// ------------------------------------------------
	//	Add the ACF fields
	// ------------------------------------------------
	function add_acf_fields() {

		$fields = array (

			'key' => 'mttr_flex_layouts_grid',
			'name' => 'grid',
			'label' => 'Grid',
			'display' => 'block',
			'sub_fields' => array (
				array (
					'key' => 'mttr_flex_layouts_grid_style',
					'label' => 'Style',
					'name' => 'style',
					'type' => 'select',
					'instructions' => '',
					'required' => 0,
					'conditional_logic' => 0,
					'wrapper' => array (
						'width' => 100,
						'class' => '',
						'id' => '',
					),
					'choices' => mttr_get_acf_flexible_content_feature_options(),
					'default_value' => array (
					),
					'allow_null' => 0,
					'multiple' => 0,
					'ui' => 0,
					'ajax' => 0,
					'placeholder' => '',
					'disabled' => 0,
					'readonly' => 0,
				),
				array (
					'key' => 'mttr_flex_layouts_grid_style_items_posts',
					'label' => 'Posts',
					'name' => 'posts',
					'type' => 'post_object',
					'instructions' => '',
					'required' => 0,
					'conditional_logic' => 0,
					'wrapper' => array (
						'width' => '',
						'class' => '',
						'id' => '',
					),
					'post_type' => array (
					),
					'taxonomy' => array (
					),
					'allow_null' => 0,
					'multiple' => 1,
					'return_format' => 'id',
					'ui' => 1,
				),
				array (
					'key' => 'mttr_flex_layouts_grid_style_latest',
					'label' => 'Latest Posts',
					'name' => 'latest_posts',
					'type' => 'true_false',
					'instructions' => '',
					'required' => 0,
					'conditional_logic' => 0,
					'wrapper' => array (
						'width' => 50,
						'class' => '',
						'id' => '',
					),
					'message' => 'Display Latest Posts',
					'default_value' => 0,
				),
				array (
					'key' => 'mttr_flex_layouts_grid_style_post_type',
					'label' => 'Post Type',
					'name' => 'post_type',
					'type' => 'select',
					'instructions' => '',
					'required' => 1,
					'conditional_logic' => array (
						array (
							array (
								'field' => 'mttr_flex_layouts_grid_style_latest',
								'operator' => '==',
								'value' => '1',
							),
						),
					),
					'wrapper' => array (
						'width' => 25,
						'class' => '',
						'id' => '',
					),
					'choices' => mttr_flex_layouts_grid_style_post_type_choices(),
					'default_value' => array (
						'standard' => apply_filters( 'mttr_flex_layouts_grid_style_post_type_standard', 'standard' ),
					),
					'allow_null' => 0,
					'multiple' => 0,
					'ui' => 0,
					'ajax' => 0,
					'placeholder' => '',
					'disabled' => 0,
					'readonly' => 0,
				),
				array (
					'key' => 'mttr_flex_layouts_grid_style_post_num',
					'label' => 'Number of Posts',
					'name' => 'per_page',
					'type' => 'text',
					'instructions' => '',
					'required' => 0,
					'conditional_logic' => array (
						array (
							array (
								'field' => 'mttr_flex_layouts_grid_style_latest',
								'operator' => '==',
								'value' => '1',
							),
						),
					),
					'wrapper' => array (
						'width' => 25,
						'class' => '',
						'id' => '',
					),
					'default_value' => '',
					'placeholder' => '',
					'prepend' => '',
					'append' => '',
					'maxlength' => '',
					'readonly' => 0,
					'disabled' => 0,
				),
			),
			'min' => '',
			'max' => '',

		);

		mttr_add_acf_flexible_content_option( 'grid', apply_filters( 'mttr_setup_flex_grid_acf_fields_array', $fields ) );

	}




	// ------------------------------------------------
	//	Get the component location
	// ------------------------------------------------
	function get_component_template_location() {

		return 'components/content/grid/_c.grid-tpl';

	}



	// ------------------------------------------------
	//	Get the component classname
	// ------------------------------------------------
	function get_class_name( $style ) {

		// Setup the content
		$classname = 'Mttr_Component_' . ucwords( str_replace( '-', ' ', esc_attr( $style ) ) );
		$classname = ucwords( str_replace( ' ', '_', $classname ) );

		return $classname;

	}



	// ------------------------------------------------
	//	Get the data
	// ------------------------------------------------
	function get_data() {

		$latest_posts = get_sub_field( 'latest_posts' );
		$per_page = get_sub_field( 'per_page' );
		$style = get_sub_field( 'style' );

		// Base array to add items to
		$items = array();
		$listing_data = false;

		if ( class_exists( $this->get_class_name( $style ) ) ) {

			$classname = $this->get_class_name( $style );
			$class = new $classname();

			// Get the listing modifiers etc
			$listing_data = $class->get_listing_data();
			$listing_data['id'] = 'c-grid-' . esc_attr( $style ) . '-' . rand( 0000, 9999 );


			// Get latest posts
			if ( $latest_posts ) {

				$post_type = get_sub_field( 'post_type' );
				$per_page = get_sub_field( 'per_page' );

				// If no per page set, use the default posts per page
				if ( empty( $per_page ) ) {

					$per_page = get_option( 'posts_per_page' );

				}

				// Setup the query
				$q = new WP_Query( 

					array( 

						'post_type' => $post_type,
						'post_status' => 'publish',
						'posts_per_page' => intval( $per_page ),

					) 

				);

				// Check that the class we're looking for exists and we have posts
				if ( $q->have_posts() ) {

					$counter = 1;

					while ( $q->have_posts() ) {

						$q->the_post();
						
						// Cache data in a var
						$data = $class->get_data( get_the_ID() );

						// Add a unique identifier for the components
						$data['data']['id'] = $listing_data['id'] . '-' . $counter;
						$items[] = $data;

						// Add the styles
						if ( method_exists( $class, 'get_styles' ) ) {

							$this->add_styles( $class->get_styles( $data['data'] ) );

						}

						$counter++;

					}

				}

				// Reset the postdata
				wp_reset_postdata();


			// We have specified posts, look for those!
			} else {

				$posts = get_sub_field( 'posts' );

				if ( $posts ) {

					$counter = 1;

					// Loop through each post
					foreach( $posts as $post ) {

						// Cache data in a var
						$data = $class->get_data( $post );

						// Add a unique identifier for the components
						$data['data']['id'] = $listing_data['id'] . '-' . $counter;
						$items[] = $data;

						// Add the styles
						if ( method_exists( $class, 'get_styles' ) ) {

							$this->add_styles( $class->get_styles( $data['data'] ) );

						}

						$counter++;

					}

				}

			}

		}

		// Return the listing data and the items
		return array(

			'listing' => $listing_data,
			'items' => array(

				'data' => $items

			)

		);

	}



	// ------------------------------------------------
	//	Add style
	// ------------------------------------------------
	function add_styles( $styles ) {

		$this->styles = $this->styles . $styles;

	}



	// ------------------------------------------------
	//	Render the actual component
	// ------------------------------------------------
	function render_component( $data ) {

		mttr_get_template( $this->get_component_template_location(), $data );

	}


}

// Initialise the component
add_action( 'init', function() {

	new Mttr_Component_Grid();
	
}, 4 );