<?php
defined( 'ABSPATH' ) || exit;

/**
 * Gravity Forms: forms from GFAPI::get_forms(), answers from `gform_after_submission`.
 * Multi-part fields (Name, Address, Checkboxes) are one field, read as text via the
 * field's own get_value_export().
 */
class Beon_Notify_Source_Gravity_Forms extends Beon_Notify_Form_Source {

	public function key() {
		return 'gf';
	}

	public function name() {
		return 'Gravity Forms';
	}

	public function active() {
		return class_exists( 'GFAPI' );
	}

	public function forms() {
		$forms = array();

		foreach ( (array) GFAPI::get_forms() as $form ) {
			$fields = array();

			foreach ( (array) ( $form['fields'] ?? array() ) as $field ) {
				$type = (string) $this->prop( $field, 'type' );
				if ( $this->skip_type( $type ) || in_array( $type, array( 'page', 'captcha' ), true ) ) {
					continue;
				}

				$id = (string) $this->prop( $field, 'id' );

				$fields[] = array(
					'key'   => $id,
					/* translators: %s: field id */
					'label' => wp_strip_all_tags( (string) $this->prop( $field, 'label' ) ) ?: sprintf( __( 'Field %s', 'beon-chat' ), $id ),
					'type'  => $type,
				);
			}

			$forms[ (string) $form['id'] ] = array(
				'title'  => (string) ( $form['title'] ?? '' ),
				'fields' => $fields,
			);
		}

		return $forms;
	}

	public function listen() {
		add_action( 'gform_after_submission', array( $this, 'on_submit' ), 10, 2 );
	}

	public function on_submit( $entry, $form ) {
		if ( 'spam' === ( $entry['status'] ?? '' ) ) {
			return;
		}

		$answers = array();
		foreach ( (array) ( $form['fields'] ?? array() ) as $field ) {
			$id = (string) $this->prop( $field, 'id' );

			if ( is_object( $field ) && method_exists( $field, 'get_value_export' ) ) {
				$value = $field->get_value_export( $entry, $id, true );
			} else {
				$value = $entry[ $id ] ?? '';
			}

			$answers[ $id ] = $this->text( $value );
		}

		Beon_Notify_Forms::submitted( $this->key(), (string) ( $form['id'] ?? '' ), $answers, (string) ( $form['title'] ?? '' ), $entry );
	}

	/** GF_Field objects and plain arrays (older add-ons) alike. */
	private function prop( $field, $name ) {
		if ( is_object( $field ) ) {
			return $field->$name ?? '';
		}

		return is_array( $field ) ? ( $field[ $name ] ?? '' ) : '';
	}
}