<?php
/**
 * WPForms integration.
 *
 * @package Abstract_One_CRM_Form_Integration
 */

defined( 'ABSPATH' ) || exit;

/**
 * Class AOLI_Form_Handler_WPForms
 */
class AOLI_Form_Handler_WPForms {

	/**
	 * Constructor.
	 */
	public function __construct() {
		add_action( 'wpforms_process_complete', array( $this, 'handle_submission' ), 10, 4 );
	}

	/**
	 * Handle WPForms submission.
	 *
	 * @param array $fields    Submitted fields.
	 * @param array $entry     Entry data.
	 * @param array $form_data Form configuration.
	 * @param int   $entry_id  Entry ID.
	 */
	public function handle_submission( $fields, $entry, $form_data, $entry_id ) {
		unset( $entry, $entry_id );

		if ( empty( $form_data['id'] ) || ! is_array( $fields ) ) {
			return;
		}

		$values = array();
		foreach ( $fields as $field_id => $field ) {
			$key = ! empty( $field['id'] ) ? (string) $field['id'] : (string) $field_id;
			$values[ $key ] = isset( $field['value'] ) ? $field['value'] : '';
		}

		AOLI_Form_Processor::process( 'wpforms', (string) $form_data['id'], $values );
	}

	/**
	 * Get available WPForms forms.
	 *
	 * @return array<int, string>
	 */
	public static function get_forms() {
		if ( ! function_exists( 'wpforms' ) && ! post_type_exists( 'wpforms' ) ) {
			return array();
		}

		$posts = get_posts(
			array(
				'post_type'      => 'wpforms',
				'post_status'    => 'publish',
				'posts_per_page' => -1,
				'orderby'        => 'title',
				'order'          => 'ASC',
			)
		);

		$forms = array();
		foreach ( $posts as $post ) {
			$forms[ $post->ID ] = $post->post_title;
		}

		return $forms;
	}

	/**
	 * Get form field names.
	 *
	 * @param int $form_id Form ID.
	 * @return array<string, string>
	 */
	public static function get_form_fields( $form_id ) {
		$form_id = absint( $form_id );
		if ( ! $form_id ) {
			return array();
		}

		$form_post = get_post( $form_id );
		if ( ! $form_post || 'wpforms' !== $form_post->post_type ) {
			return array();
		}

		$content = json_decode( $form_post->post_content, true );
		if ( empty( $content['fields'] ) || ! is_array( $content['fields'] ) ) {
			return array();
		}

		$fields = array();
		foreach ( $content['fields'] as $field ) {
			if ( empty( $field['id'] ) || empty( $field['label'] ) ) {
				continue;
			}
			$fields[ (string) $field['id'] ] = $field['label'];
		}

		return $fields;
	}
}