<?php

declare(strict_types=1);

namespace App\BusProNet\Model;

use App\Validator\Constraints as AppAssert;
use Symfony\Component\Validator\Constraints as Assert;

/**
 * Represents communication information including email, phone, and newsletter preferences.
 *
 * This class handles contact information for users and participants in the booking system.
 * It provides validation constraints for required fields and methods to convert
 * communication data to API payload format.
 */
class Communication
{
    #[Assert\When(
        expression: 'this.isPhoneNewlyEntered()',
        constraints: [new AppAssert\PhoneNumber()],
        groups: ['personal_data'],
    )]
    public ?string $phone = null;

    #[Assert\NotBlank(message: 'Bitte angeben', groups: ['personal_data'])]
    #[Assert\When(
        expression: 'this.isMobileNewlyEntered()',
        constraints: [new AppAssert\PhoneNumber()],
        groups: ['personal_data'],
    )]
    public ?string $mobile = null;

    // The numbers as loaded from BusPro, which go back unchanged and are exempt from PhoneNumber.
    public ?string $loadedPhone = null;
    public ?string $loadedMobile = null;

    #[Assert\NotBlank(message: 'Bitte angeben', groups: ['personal_identity'])]
    #[Assert\Email(message: 'Bitte eine gültige Adresse angeben', mode: 'strict', groups: ['personal_identity'])]
    public ?string $email = null;

    public bool $newsletter = false;

    public function rememberLoadedNumbers(): void
    {
        $this->loadedPhone = $this->phone;
        $this->loadedMobile = $this->mobile;
    }

    public function isPhoneNewlyEntered(): bool
    {
        return AppAssert\PhoneNumber::isNewlyEntered($this->phone, $this->loadedPhone);
    }

    public function isMobileNewlyEntered(): bool
    {
        return AppAssert\PhoneNumber::isNewlyEntered($this->mobile, $this->loadedMobile);
    }

    /**
     * Converts the communication data to API payload format.
     *
     * Transforms the communication object into an array structure suitable
     * for API communication with the BusProNet system.
     *
     * @return array<string, string> The payload array for API transmission
     */
    public function toPayload(): array
    {
        return [
            'email' => $this->email,
            'telefonmobil' => $this->mobile,
            'telefonprivat' => $this->phone,
            'newsletter' => $this->newsletter ? 'True' : 'False',
        ];
    }
}