<?php

class DisplayFeaturedImageGenesisWidgetsBlocksFields {

	/**
	 * Get the fields for the block.
	 *
	 * @param $block
	 *
	 * @return array
	 */
	public function fields( $block ) {
		$output = array();
		foreach ( $this->get_all_fields( $block ) as $key => $value ) {
			if ( ! empty( $value['args']['id'] ) ) {
				$key = $value['args']['id'];
			}
			$output[ $key ] = $this->get_individual_field_attributes( $value, $block );
		}

		return $output;
	}

	/**
	 * @param $block
	 *
	 * @return array
	 */
	private function get_all_fields( $block ) {
		$fields     = "{$block}_fields";
		$attributes = array_merge(
			include 'fields/blocks-attributes.php',
			$this->$fields()
		);

		return $attributes;
	}

	/**
	 * @return array
	 */
	protected function cpt_fields() {
		$form = new DisplayFeaturedImageGenesisWidgetsForm( $this, array() );

		return array_merge(
			include 'fields/cpt-post_type.php',
			include 'fields/text.php',
			include 'fields/image.php',
			include 'fields/archive.php'
		);
	}

	/**
	 * @return array
	 */
	protected function author_fields() {
		$form = new DisplayFeaturedImageGenesisWidgetsForm( $this, array() );
		$user = array(
			array(
				'method' => 'select',
				'args'   => include 'fields/author-user.php',
			),
		);

		return array_merge(
			$user,
			include 'fields/author-image.php',
			include 'fields/author-gravatar.php',
			include 'fields/author-description.php',
			include 'fields/author-archive.php'
		);
	}

	/**
	 * Get an array of attributes for an individual field.
	 *
	 * @param $field
	 * @param $block
	 *
	 * @return array
	 */
	private function get_individual_field_attributes( $field, $block ) {
		$method     = empty( $field['method'] ) ? 'text' : $field['method'];
		$field_type = $this->get_field_type( $method );
		if ( empty( $field['args']['label'] ) ) {
			return $field;
		}
		$defaults   = include "fields/{$block}-defaults.php";
		$attributes = array(
			'type'    => $field_type,
			'default' => $defaults[ $field['args']['id'] ],
			'label'   => $field['args']['label'],
			'method'  => $method,
		);
		if ( in_array( 'number', array( $field_type, $method ), true ) ) {
			$attributes['min'] = $field['args']['min'];
			$attributes['max'] = $field['args']['max'];
		} elseif ( 'select' === $method ) {
			$attributes['options'] = $this->convert_choices_for_select( $field['args']['choices'] );
		}

		return $attributes;
	}

	/**
	 * Define the type of field for our script.
	 *
	 * @param $method
	 *
	 * @return string
	 */
	private function get_field_type( $method ) {
		$type = 'string';
		if ( 'number' === $method ) {
			return $method;
		}
		if ( 'checkbox' === $method ) {
			return 'boolean';
		}

		return $type;
	}

	/**
	 * Convert a standard PHP array to what the block editor needs.
	 *
	 * @param $options
	 *
	 * @return array
	 */
	private function convert_choices_for_select( $options ) {
		$output = array();
		foreach ( $options as $value => $label ) {
			$output[] = array(
				'value' => $value,
				'label' => $label,
			);
		}

		return $output;
	}
}