<?php

namespace FQP\Form;

use FQP;

class Step2 extends FQP\FormAbstract {

    protected static $fields = [
        'prefix'             => [],
        'first_name'         => [ 'type' => 'text',  'attribs' => [ 'placeholder' => 'First Name', 'required' => true ] ],
        'last_name'          => [ 'type' => 'text',  'attribs' => [ 'placeholder' => 'Last Name',  'required' => true ] ],
        'street'             => [ 'type' => 'text',  'attribs' => [ 'placeholder' => 'Street',     'required' => true ] ],
        'zip'                => [ 'type' => 'text',  'attribs' => [ 'placeholder' => 'Zip',        'required' => true ] ],
        'city'               => [ 'type' => 'text',  'attribs' => [ 'placeholder' => 'City',       'required' => true ] ],
        'email'              => [ 'type' => 'email', 'attribs' => [ 'placeholder' => 'Email',      'required' => true ] ],
        'phone'              => [ 'type' => 'phone', 'attribs' => [ 'placeholder' => 'Phone',      'required' => true ] ],
    ];

    public static function get_fields() {
        if ( empty( static::$fields['prefix'] ) ) {
            $multi_options = [];
            if ( 'en' == FQP\FQP::get_curr_lang() ) {
                $multi_options = [ 'Mr' => 'Mr', 'Ms' => 'Ms', 'Mrs' => 'Mrs' ];
            } else {
                foreach ( [ 'Mr', 'Ms' ] as $text ) {
                    $text = fqp__( $text );
                    $multi_options[$text] = $text;
                }
            }
            $prefix = [
                'type'          => 'radio',
                'multi_options' => $multi_options,
                'attribs'       => [ 'required' => true ],
            ];
            static::$fields['prefix'] = $prefix;
        }

        return static::$fields;
    }

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

        $errors = [];

        $fields = [
            'prefix'     => fqp__('Prefix'),
            'first_name' => fqp__('First Name'),
            'last_name'  => fqp__('Last Name'),
            'street'     => fqp__('Street'),
            'zip'        => fqp__('Zip'),
            'city'       => fqp__('City'),
            'email'      => fqp__('Email'),
            'phone'      => fqp__('Phone'),
        ];

        $field_messages = [
            'required'     => fqp__('%s is required'),
            'wrong_format' => fqp__('%s is in wrong format'),
        ];

        foreach ( $fields as $name => $title ) {
            if ( !array_key_exists( $name, $data ) || empty( $data[$name] ) ) {
                $errors[] = esc_html( sprintf( $field_messages['required'],  $title ) );
            } else if ( in_array( $name, [ 'email' ] ) ) {
                if ( !preg_match( FQP\FQP::EMAIL_REGEX, $data[$name] ) ) {
                    $errors[] = esc_html( sprintf( $field_messages['wrong_format'], $title ) );
                }
            } else if ( in_array( $name, [ 'zip' ] ) && ! empty( $data[$name] ) ) {
                if ( !preg_match( FQP\FQP::NUMERIC_REGEX, $data[$name] ) ) {
                    $errors[] = esc_html( sprintf( $field_messages['wrong_format'], $title ) );
                }
            }
        }

        if ( $data['phone'] ) {
            $phoneUtil = \libphonenumber\PhoneNumberUtil::getInstance();
            try {
                $number = $phoneUtil->parse( $data['phone'], 'CH' );
                if ( !$phoneUtil->isValidNumber( $number ) ) {
                    $errors[] = esc_html( sprintf( $field_messages['wrong_format'],  $fields['phone'] ) );
                }
            } catch ( \libphonenumber\NumberParseException $e ) {
                $errors[] = esc_html( sprintf( $field_messages['wrong_format'],  $fields['phone'] ) );
            }
        }

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

}