<?php

namespace Blocksy\Extensions\WoocommerceExtra;

class CustomThankYouPage {
	private $post_type = 'ct_thank_you_page';

	public function __construct() {
		add_action('init', [$this, 'register_post_type']);

		add_filter(
			'blocksy:editor:post_types_for_rest_field',
			function ($post_types) {
				$post_types[] = $this->post_type;
				return $post_types;
			}
		);

		add_filter('blocksy:editor:post_meta_options', function ($options, $post_type) {
			if ($post_type !== $this->post_type) {
				return $options;
			}

			global $post;

			$post_id = $post->ID;

			return blocksy_akg(
				'options',
				blc_theme_functions()->blocksy_get_variables_from_file(
					dirname(
						__FILE__
					) . '/options.php',
					['options' => []]
				)
			);
		}, 10, 2);

		add_action(
			'wp',
			function () {
				global $wp;

				if (empty(get_query_var('order-received'))) {
					return;
				}

				$order_id = absint(get_query_var('order-received'));

				$order = wc_get_order($order_id);

				if (
					! $order
					||
					! is_a($order, 'WC_Order')
					||
					$order->get_status() === 'failed'
				) {
					return;
				}

				$matching_thank_you_pages = $this->get_mathing_thank_you_page($order);

				if (empty($matching_thank_you_pages)) {
					return;
				}

				$renderer = new \Blocksy\CustomPostTypeRenderer($matching_thank_you_pages[0]->ID);
				$renderer->pre_output();
			}
		);

		add_filter('render_block', function ($block_content, $block) {
			if (
				$block['blockName'] !== 'woocommerce/classic-shortcode'
				||
				! isset($block['attrs']['shortcode'])
				||
				$block['attrs']['shortcode'] !== 'checkout'
			) {
				return $block_content;
			}

			return $this->blc_render_custom_ty_content($block_content);
		}, 10, 2);

		add_filter('do_shortcode_tag', function($output, $tag, $attr) {
			if ('woocommerce_checkout' !== $tag) {
				return $output;
			}

			return $this->blc_render_custom_ty_content($output);
		}, 10, 3);

		add_action('woocommerce_product_data_tabs', [$this, 'blc_add_product_tab']);
		add_action('woocommerce_product_data_panels', [$this, 'render_thank_you_product_tab']);
		add_action('woocommerce_process_product_meta', [$this, 'blc_save_ty_for_product']);

		add_filter('manage_ct_thank_you_page_posts_columns', function ($columns) {
			$columns['ct_categories'] = __('Categories', 'blocksy-companion');

			$available_gateways = (new \WC_Payment_Gateways())->get_available_payment_gateways();
			$available_gateways = wp_list_pluck($available_gateways, 'title');

			if (! empty($available_gateways)) {
				$columns['gateways'] = __('Payment Gateways', 'blocksy-companion');
			}

			$shipping_zones = \WC_Shipping_Zones::get_zones();

			if (! empty($shipping_zones)) {
				$columns['shippings'] = __('Shipping Methods', 'blocksy-companion');
			}

			return $columns;
		});

		add_action(
			'manage_ct_thank_you_page_posts_custom_column',
			function ($column, $post_id) {
				$atts = blocksy_get_post_options($post_id);

				if ($column === 'ct_categories') {
					$custom_ty_categories = blocksy_akg(
						'custom_ty_categories',
						$atts,
						[]
					);

					foreach ($custom_ty_categories as $id => $enabled) {
						if ($enabled) {
							$term = get_term_by('id', $id, 'product_cat');

							if (! $term) {
								continue;
							}

							echo esc_html($term->name) . '<br>';
						}
					}
				}

				if ($column === 'gateways') {
					$custom_ty_gateways = blocksy_akg(
						'custom_ty_gateways',
						$atts,
						[]
					);

					$available_gateways = (new \WC_Payment_Gateways())->get_available_payment_gateways();
					$available_gateways = wp_list_pluck($available_gateways, 'title');

					foreach ($custom_ty_gateways as $id => $enabled) {
						if (
							$enabled
							&&
							isset($available_gateways[$id])
						) {
							echo esc_html($available_gateways[$id]) . '<br>';
						}
					}
				}

				if ($column === 'shippings') {
					$custom_ty_shippings = blocksy_akg(
						'custom_ty_shippings',
						$atts,
						[]
					);

					$shipping_zones = \WC_Shipping_Zones::get_zones();

					if (! empty($shipping_zones)) {
						$shipping_options = call_user_func_array(
							'array_merge',
							array_map(
								function($zone) {
									$zone_name = $zone['zone_name'];

									return array_map(
										function($shipping_method) use ($zone_name) {
											return array(
												'value' => blc_safe_sprintf('%s - %s', $zone_name, $shipping_method->get_title()),
												'key' => $shipping_method->get_instance_id(),
											);
										},
										$zone['shipping_methods']
									);
								},
								$shipping_zones
							)
						);

						foreach ($custom_ty_shippings as $id => $enabled) {
							if ($enabled) {
								$maybe_shipping_method = array_search(
									$id,
									array_column($shipping_options, 'key')
								);

								if ($maybe_shipping_method === false) {
									continue;
								}

								echo esc_html($shipping_options[$maybe_shipping_method]['value']) . '<br>';
							}
						}
					}
				}
			}, 10, 2
		);
	}

	public function blc_render_custom_ty_content($fallback) {
		if (empty(get_query_var('order-received'))) {
			return $fallback;
		}

		$order_id = absint(get_query_var('order-received'));

		$order = wc_get_order($order_id);

		if (
			! $order
			||
			! is_a($order, 'WC_Order')
			||
			$order->get_status() === 'failed'
		) {
			return $fallback;
		}

		$matching_thank_you_pages = $this->get_mathing_thank_you_page($order);

		if (empty($matching_thank_you_pages)) {
			return $fallback;
		}

		$result = '';

		$renderer = new \Blocksy\CustomPostTypeRenderer($matching_thank_you_pages[0]->ID);

		$result .= $renderer->get_content();

		remove_action( 'woocommerce_thankyou', 'woocommerce_order_details_table', 10 );

		ob_start();
		do_action('woocommerce_thankyou', $order->get_id());
		$result .= ob_get_clean();

		return $result;
	}

	public function blc_save_ty_for_product($post_id) {
		if (
			empty($_POST['woocommerce_meta_nonce'])
			||
			! wp_verify_nonce(sanitize_key($_POST['woocommerce_meta_nonce']), 'woocommerce_save_data')
		) {
			return;
		}

		$thank_you_page_id = isset($_POST['ct_thank_you_page_id']) ? absint($_POST['ct_thank_you_page_id']) : 0;

		if (! $thank_you_page_id) {
			delete_post_meta($post_id, '_ct_thank_you_page_id');
			return;
		}

		update_post_meta($post_id, '_ct_thank_you_page_id', $thank_you_page_id);
	}


	public function blc_add_product_tab($tabs) {
		$tabs['ct-custom-thank-you'] = array(
			'label'    => __('Thank you Page', 'blocksy-companion'),
			'target'   => 'ct_custom_thank_you',
			'class'    => [],
			'priority' => 120,
		);

		return $tabs;
	}

	public function render_thank_you_product_tab() {
		blocksy_render_view_e(
			dirname(__FILE__) . '/select.php',
			[]
		);
	}

	public function get_post_type() {
		return $this->post_type;
	}

	public function get_mathing_thank_you_page($order) {
		$categories = $this->get_order_categories($order);
		$custom_ty_per_product = $this->get_custom_ty_per_product($order);
		$shipping_methods = $order->get_shipping_methods();
		$payment_method = $order->get_payment_method();

		$shipping_methods_ids = array_map(function($method) {
			return $method->get_instance_id();
		}, $shipping_methods);

		$all_ty_pages = get_posts([
			'numberposts' => -1,
			'post_type' => $this->post_type,
			'fields' => 'ids'
		]);

		if (empty($all_ty_pages)) {
			return [];
		}

		$matching_thank_you_pages = [];

		$matching_thank_you_pages = array_filter(
			$all_ty_pages,
			function($ty_page) use ($categories, $payment_method, $shipping_methods) {
				$atts = blocksy_get_post_options($ty_page);

				$selected_categories = blocksy_akg(
					'custom_ty_categories',
					$atts,
					[]
				);

				$found_category = false;
				foreach ($categories as $cat) {
					if (
						isset($selected_categories[$cat])
						&&
						$selected_categories[$cat]
					) {
						$found_category = true;
					}
				}

				if ($found_category) {
					return true;
				}

				$selected_payment_methods = blocksy_akg(
					'custom_ty_gateways',
					$atts,
					[]
				);

				if (
					isset($selected_payment_methods[$payment_method])
					&&
					$selected_payment_methods[$payment_method]
				) {
					return true;
				}

				$selected_shipping_methods = blocksy_akg(
					'custom_ty_shippings',
					$atts,
					[]
				);

				$found_shipping_method = false;

				foreach ($shipping_methods as $shipping_method) {
					if (
						isset($selected_shipping_methods[$shipping_method->get_instance_id()])
						&&
						$selected_shipping_methods[$shipping_method->get_instance_id()]
					) {
						$found_shipping_method = true;
					}
				}

				if ($found_shipping_method) {
					return true;
				}

				return false;
			}
		);


		if (empty(
			array_merge(
				$matching_thank_you_pages,
				$custom_ty_per_product
			)
		)) {
			return [];
		}

		$matching_thank_you_pages = get_posts(
			[
				'numberposts' => -1,
				'post_type' => $this->post_type,
				'post__in' => array_merge(
					$matching_thank_you_pages,
					$custom_ty_per_product
				)
			]
		);

		usort($matching_thank_you_pages, function($a, $b) {
			$a_atts = blocksy_get_post_options($a->ID);
			$b_atts = blocksy_get_post_options($b->ID);

			$a_priority = blocksy_default_akg('priority', $a_atts, 0);
			$b_priority = blocksy_default_akg('priority', $b_atts, 0);

			return $b_priority - $a_priority;
		});

		return $matching_thank_you_pages;
	}

	public function get_custom_ty_per_product($order) {
		$items = $order->get_items();

		$custom_ty = [];

		foreach ($items as $key => $item) {
			$product_name = $item['name'];
			$product_id = $item['product_id'];

			$custom_type_meta = get_post_meta($product_id, '_ct_thank_you_page_id', true);

			if (
				$custom_type_meta
				&&
				$custom_type_meta !== '0'
			) {
				$custom_ty[] = $custom_type_meta;
			}
		}

		return array_unique($custom_ty);
	}

	public function get_order_categories($order) {
		$items = $order->get_items();

		$categories = [];

		foreach ($items as $key => $item) {
			$product_name = $item['name'];
			$product_id = $item['product_id'];
			$terms = get_the_terms($product_id, 'product_cat');

			foreach ($terms as $term) {
				$categories[] = $term->term_id;
			}
		}

		return array_unique($categories);
	}

	public function register_post_type() {
		$actions = [
			'edit_post',
			'read_post',
			'delete_post',
			'edit_posts',
			'edit_others_posts',
			'publish_posts',
			'read_private_posts',
			'read',
			'delete_posts',
			'delete_private_posts',
			'delete_published_posts',
			'delete_others_posts',
			'edit_private_posts',
			'edit_published_posts'
		];

		$capabilities = [];

		foreach ($actions as $action) {
			$capabilities[$action] = blc_get_capabilities()->get_wp_capability_by(
				'custom_post_type',
				[
					'post_type' => $this->post_type,
					'action' => $action
				]
			);
		}

		register_post_type($this->post_type, [
			'labels' => [
				'name' => __('Thank You Pages', 'blocksy-companion'),
				'singular_name' => __('Thank You Page', 'blocksy-companion'),
				'add_new' => __('Add New', 'blocksy-companion'),
				'add_new_item' => __('Add New Thank You Page', 'blocksy-companion'),
				'edit_item' => __('Edit Thank You Page', 'blocksy-companion'),
				'new_item' => __('New Thank You Page', 'blocksy-companion'),
				'all_items' => __('Thank You Pages', 'blocksy-companion'),
				'view_item' => __('View Thank You Page', 'blocksy-companion'),
				'search_items' => __('Search Thank You Pages', 'blocksy-companion'),
				'not_found' => __('Nothing found', 'blocksy-companion'),
				'not_found_in_trash' => __('Nothing found in Trash', 'blocksy-companion'),
				'parent_item_colon' => '',
			],

			'show_in_admin_bar' => false,
			'public' => true,
			'show_ui' => true,
			'show_in_menu' => current_user_can('manage_options') ? 'woocommerce-marketing' : false,
			'publicly_queryable' => true,
			'show_in_nav_menus' => false,
			'can_export' => true,
			'query_var' => true,
			'has_archive' => false,
			'hierarchical' => false,
			'show_in_rest' => true,
			'exclude_from_search' => true,

			'supports' => [
				'title',
				'editor',
				'custom-fields'
			],

			'capabilities' => $capabilities
		]);
	}
}
