<?php

namespace FQP\Form;

use FQP;

class Step1 extends FQP\FormAbstract {

    public static function get_fields() {
        return [];
    }

    public static function sanitize_data( &$data ) {
        if ( !is_array( $data ) ) {
            $data = [];
        }

        $errors = [];

        $entry_types = FQP\DB::get_entry_types();
        $backing_types = FQP\DB::get_backing_types();

        if ( ! array_key_exists( 'entry_type', $data ) || !array_key_exists( $data['entry_type'], $entry_types ) ) {
            $errors[] = esc_html( fqp__( 'Please select type of legal entity.' ) );
        }

        if ( 'y' == @$entry_types[$data['entry_type']]['hasBacking'] ) {
            if ( ! array_key_exists( 'backing_type', $data ) || !array_key_exists( $data['backing_type'], $backing_types ) ) {
                $errors[] = esc_html( fqp__( 'Please select type of financial backing.' ) );
            }
        } else {
            unset( $data['backing_type'] );
        }

        if ( !empty( $data['partners'] ) ) {
            $partners = array_column( FQP\DB::get_partners( true ), 'ID' );
            foreach ( array_keys( $data['partners'] ) as $partner_id ) {
                if ( !in_array( $partner_id, $partners ) ) {
                    unset( $data[$partner_id] );
                }
            }
        }

        return ( empty( $errors ) ) ? true : $errors;
    }

    public static function get_filter_fields() {
        $fields = [ 'entry_type' => [], 'backing_type' => [], 'partners' => [] ];
        return $fields;
    }

}