<?php

declare( strict_types=1 );

namespace Org\Wplake\Advanced_Views\Field_Provider\Acf\Fields;

defined( 'ABSPATH' ) || exit;

use Org\Wplake\Advanced_Views\Post_Type\Layouts\Acf\Groups\Field_Settings;
use Org\Wplake\Advanced_Views\Post_Type\Layouts\Acf\Groups\Layout_Settings;
use Org\Wplake\Advanced_Views\Field_Provider\Core\Field_Meta;
use Org\Wplake\Advanced_Views\Field_Provider\Core\Fields\Markup_Field_Base;
use Org\Wplake\Advanced_Views\Post_Type\Layouts\Fields\Markup_Field_Data;
use Org\Wplake\Advanced_Views\Post_Type\Layouts\Fields\Variable_Field_Data;
use Org\Wplake\Advanced_Views\Template\Library_Pattern\Patterns\Map_Pattern;
use function Org\Wplake\Advanced_Views\Vendors\WPLake\Typed\arr;
use function Org\Wplake\Advanced_Views\Vendors\WPLake\Typed\string;

class Map_Field extends Markup_Field_Base {
	protected function print_map_marker_attributes(
		string $field_id,
		string $item_id,
		Markup_Field_Data $markup_field_data
	): void {
		$token_factory = $markup_field_data->get_token_factory();

		printf(
			'class="%s"',
			esc_html(
				$this->get_item_class(
					'map-marker',
					$markup_field_data->get_view_data(),
					$markup_field_data->get_field_data()
				)
			),
		);

		$lat_var = $token_factory->variable( $item_id )
									->add_item_path( 'lat' );
		$lng_var = $token_factory->variable( $item_id )
									->add_item_path( 'lng' );

		$token_factory->format()
						->attributes(
							array(
								'data-lat' => $lat_var,
								'data-lng' => $lng_var,
							)
						);
	}

	/**
	 * @return array<string, mixed>
	 */
	protected function get_template_args_for_google( Variable_Field_Data $variable_field_data ): array {
		$args = ! $variable_field_data->get_field_meta()->is_multiple() ?
			array(
				'value' => '',
				'lat'   => 0,
				'lng'   => 0,
			) :
			array(
				'value' => array(),
			);

		// common args.
		$args = array_merge(
			$args,
			array(
				// set default values, so if the field has no markers, and showWhenEmpty flag,
				// then it can show the map in right position.
				'zoom'       => $variable_field_data->get_field_meta()->get_zoom(),
				'center_lat' => $variable_field_data->get_field_meta()->get_center_lat(),
				'center_lng' => $variable_field_data->get_field_meta()->get_center_lng(),
			)
		);

		$value = arr( $variable_field_data->get_value() );

		if ( 0 === count( $value ) ) {
			return $args;
		}

		if ( ! $variable_field_data->get_field_meta()->is_multiple() ) {
			$lat = string( $value, 'lat' );

			$args['value'] = strlen( $lat ) > 0;
			$args['zoom']  = string( $value, 'zoom', '16' );
			$args['lat']   = $lat;
			$args['lng']   = string( $value, 'lng' );
		} else {
			// the plugin doesn't support zoom, so use the default from the ACF field settings.
			$args['zoom'] = $variable_field_data->get_field_meta()->get_zoom();

			$args['value'] = array();

			foreach ( $value as $item ) {
				$item = arr( $item );

				$args['value'][] = array(
					'lat' => string( $item, 'lat' ),
					'lng' => string( $item, 'lng' ),
				);
			}
		}

		return $args;
	}

	/**
	 * @return array<string, mixed>
	 */
	protected function get_template_args_for_os( Variable_Field_Data $variable_field_data ): array {
		$args = array(
			'value' => $variable_field_data->get_field_data()->is_map_with_address ?
				array() :
				false,
			'map'   => '',
		);

		switch ( $variable_field_data->get_field_meta()->get_return_format() ) {
			case 'leaflet':
			case 'osm':
				// used formatted value, as output already made by the plugin, and we just need to show it.
				$args = array_merge(
					$args,
					array(
						// todo it doesn't work if return format is not set to 'leaflet js' (e.g. the default 'Raw data' value).
						'map' => $variable_field_data->get_formatted_value(),
					)
				);
				break;
		}

		// if withAddress, will be filled in the Pro class.
		if ( ! $variable_field_data->get_field_data()->is_map_with_address ) {
			$markers       = is_array( $variable_field_data->get_value() ) &&
							key_exists( 'markers', $variable_field_data->get_value() ) &&
							is_array( $variable_field_data->get_value()['markers'] ) ?
				$variable_field_data->get_value()['markers'] :
				array();
			$args['value'] = array() !== $markers;
		}

		return $args;
	}

	/**
	 * @return array<string, mixed>
	 */
	protected function get_validation_args( Variable_Field_Data $variable_field_data ): array {
		if ( 'open_street_map' !== $variable_field_data->get_field_meta()->get_type() ) {
			$args = ! $variable_field_data->get_field_meta()->is_multiple() ?
				array(
					'value' => '',
					'lat'   => 0,
					'lng'   => 0,
				) :
				array( 'value' => array() );

			// common args.
			$args = array_merge(
				$args,
				array(// set default values, so if the field has no markers, and showWhenEmpty flag,
					// then it can show the map in right position.
					'zoom'       => $variable_field_data->get_field_meta()->get_zoom(),
					'center_lat' => $variable_field_data->get_field_meta()->get_center_lat(),
					'center_lng' => $variable_field_data->get_field_meta()->get_center_lng(),
				)
			);

			$validation_args = array(
				'lat' => '1',
				'lng' => '1',
			);

			if ( ! $variable_field_data->get_field_meta()->is_multiple() ) {
				$validation_args = array_merge( $args, $validation_args );

				return array_merge(
					$validation_args,
					array(
						'value' => '1',
						'zoom'  => '1',
					)
				);
			}

			return array_merge(
				$args,
				array(
					'value' => array( $validation_args ),
				)
			);
		}

		return array(
			'value' => $variable_field_data->get_field_data()->is_map_with_address ?
				array() :
				true,
			'map'   => '<iframe src="https://www.openstreetmap.org/export/embed.html?bbox=5.390371665521,50.7343356,14.857431134479,56.3593356&amp;marker=53.5500279,10.0136948" height="400" width="425" frameborder="0" scrolling="no" marginheight="0" marginwidth="0"></iframe>',
		);
	}

	public function print_markup( string $field_id, Markup_Field_Data $markup_field_data ): void {
		$token_factory = $markup_field_data->get_token_factory();
		$field_meta    = $markup_field_data->get_field_meta();
		$field_data    = $markup_field_data->get_field_data();

		if ( 'open_street_map' === $field_meta->get_type() ) {
			$var = $token_factory->variable( $field_id )
								->add_item_path( 'map' );

			$token_factory->to_echo( $var )
							->set_is_raw( true )
							->print();

			return;
		}

		$attributes_map = array(
			'data-zoom'       => 'zoom',
			'data-center-lat' => 'center_lat',
			'data-center-lng' => 'center_lng',
		);

		printf(
			'<div class="%s" style="width:100%%;height:400px;"',
			esc_html(
				$this->get_field_class( 'map', $markup_field_data )
			),
		);
		foreach ( $attributes_map as $attribute => $key ) {
			$var = $token_factory->variable( $field_id )
								->add_item_path( $key );

			$token_factory->format()
			->attribute( $attribute, $var );
		}
		echo '>';

		$token_factory->format()
			->new_line();
		$markup_field_data->increment_and_print_tabs();

		if ( $field_meta->is_multiple() ) {
			$this->print_item_loop( $field_id, $markup_field_data );
		} elseif ( $field_data->is_visible_when_empty ) {
			$this->print_conditional_item( $field_id, $field_id, $markup_field_data );
		} else {
			$this->print_inner_item( $field_id, $field_id, $markup_field_data );
		}

		$token_factory->format()
			->new_line();
		$markup_field_data->decrement_and_print_tabs();

		echo '</div>';
	}

	protected function print_item_loop( string $field_id, Markup_Field_Data $markup_field_data ): void {
		$token_factory = $markup_field_data->get_token_factory();

		$source_var = $token_factory->variable( $field_id )
										->add_item_path( 'value' );
		$item_var   = $token_factory->variable( 'marker' );

		$loop_body = $token_factory->html(
			function () use ( $field_id, $item_var, $markup_field_data, $token_factory ) {
				$token_factory->format()
								->new_line();

				$markup_field_data->increment_and_print_tabs();

				$this->print_inner_item( $field_id, $item_var->get_name(), $markup_field_data );

				$token_factory->format()
								->new_line();
				$markup_field_data->decrement_and_print_tabs();
			}
		);

		$token_factory->loop()
						->set_source_variable( $source_var )
						->set_item_variable( $item_var )
						->set_body( $loop_body )
						->print();
	}

	protected function print_conditional_item( string $field_id, string $item_id, Markup_Field_Data $markup_field_data ): void {
		$token_factory = $markup_field_data->get_token_factory();
		$value_var     = $token_factory->variable( $field_id )
										->add_item_path( 'value' );

		$if_body = $token_factory->html(
			function () use ( $field_id, $item_id, $markup_field_data, $token_factory ) {
				$token_factory->format()
								->new_line();
				$markup_field_data->increment_and_print_tabs();

				$this->print_inner_item( $field_id, $item_id, $markup_field_data );

				$token_factory->format()
								->new_line();
				$markup_field_data->decrement_and_print_tabs();
			}
		);

		$if = $token_factory->if();

		$if->new_if_branch()
			->set_condition( $value_var )
			->set_body( $if_body );

		$if->print();
	}

	protected function print_inner_item( string $field_id, string $item_id, Markup_Field_Data $markup_field_data ): void {
		echo '<div ';
		$this->print_map_marker_attributes( $field_id, $item_id, $markup_field_data );
		echo '></div>';
	}

	/**
	 * @return array<string, mixed>
	 */
	public function get_template_variables( Variable_Field_Data $variable_field_data ): array {
		return 'open_street_map' !== $variable_field_data->get_field_meta()->get_type() ?
			$this->get_template_args_for_google( $variable_field_data ) :
			$this->get_template_args_for_os( $variable_field_data );
	}

	/**
	 * @return array<string, mixed>
	 */
	public function get_validation_template_variables( Variable_Field_Data $variable_field_data ): array {
		return $this->get_validation_args( $variable_field_data );
	}

	public function is_with_field_wrapper(
		Layout_Settings $layout_settings,
		Field_Settings $field_settings,
		Field_Meta $field_meta
	): bool {
		return $layout_settings->is_with_unnecessary_wrappers ||
				'open_street_map' === $field_meta->get_type();
	}

	/**
	 * @return string[]
	 */
	public function get_conditional_fields( Field_Meta $field_meta ): array {
		return array_merge(
			parent::get_conditional_fields( $field_meta ),
			array(
				Field_Settings::FIELD_MAP_MARKER_ICON,
				Field_Settings::FIELD_MAP_MARKER_ICON_TITLE,
				Field_Settings::FIELD_MAP_ADDRESS_FORMAT,
				Field_Settings::FIELD_IS_MAP_WITH_ADDRESS,
				Field_Settings::FIELD_IS_MAP_WITHOUT_GOOGLE_MAP,
			)
		);
	}

	public function get_front_assets( Field_Settings $field_settings ): array {
		$front_assets = array();

		if ( false === $field_settings->is_map_without_google_map ) {
			$front_assets[] = Map_Pattern::NAME;
		}

		return array_merge( parent::get_front_assets( $field_settings ), $front_assets );
	}
}