<?php

namespace App\Form\Model;

use App\BusProNet\Model\Address;
use App\BusProNet\Model\Insurance;
use App\BusProNet\Model\PersonalData;
use App\BusProNet\Model\Pickup;
use App\BusProNet\Model\Service;
use App\Validator\Constraints as AppAssert;
use Symfony\Component\Validator\Constraints as Assert;

#[AppAssert\Participant(groups: ['booking_edit', 'booking_create_step_2'])]
class ParticipantDto
{
    /**
     * List of dynamic participant fields that can be conditionally hidden/shown.
     */
    public const DYNAMIC_FIELDS = [
        'assignedRoomId',
        'remarksRoom',
        'courses',
        'additionalServices',
        'board',
        'rentals',
        'rentalInsurance',
        'skiPass',
        'transportationOutbound',
        'transportationInbound',
        'pickupOutbound',
        'pickupInbound',
        'parking',
        'licensePlate',
        'bulkInsuranceBooking',
        'insurance',
    ];

    public ?int $index = null;
    public ?int $addressId = null;
    public ?int $personId = null;
    public ?string $status = null;
    public bool $mutable = false;

    #[Assert\NotBlank(message: 'Bitte angeben', groups: ['booking_edit', 'booking_create_step_2'])]
    public ?string $firstName = null;

    #[Assert\NotBlank(message: 'Bitte angeben', groups: ['booking_edit', 'booking_create_step_2'])]
    public ?string $lastName = null;
    public ?string $title = null;
    public ?string $gender = null;
    public ?string $nationality = null;

    public ?string $height = null;
    public ?string $shoeSize = null;
    public ?string $weight = null;

    #[Assert\NotNull(message: 'Bitte angeben', groups: ['booking_edit', 'booking_create_step_2'])]
    public ?\DateTimeImmutable $dateOfBirth = null;

    #[Assert\NotBlank(message: 'Bitte angeben', groups: ['booking_edit', 'booking_create_step_2'])]
    #[Assert\Email(message: 'Bitte eine gültige E-Mail Adresse angeben', mode: 'strict', groups: ['booking_edit', 'booking_create_step_2'])]
    public ?string $email = null;

    public ?string $mobile = null;

    #[Assert\Valid(groups: ['booking_edit', 'booking_create_step_2'])]
    #[Assert\NotNull(message: 'Bitte Adresse angeben', groups: ['applicant_address'])]
    public ?Address $address = null;

    #[Assert\NotNull(message: 'Bitte ein Zimmer auswählen', groups: ['booking_create_step_2'])]
    public ?int $assignedRoomId = null;

    public ?string $remarksRoom = null;

    public array $courses = [];
    public array $additionalServices = [];
    public ?Service $skiPass = null;
    public array $board = [];
    public array $rentals = [];
    public ?Service $rentalInsurance = null;

    // Rental insurance checkbox state (boolean: true if rental insurance requested)
    public bool $rentalInsuranceSelected = false;

    // Transportation services with improved naming (outbound/inbound)
    public ?Service $transportationOutbound = null;
    public ?Service $transportationInbound = null;

    // Pickup locations for each direction
    public ?Pickup $pickupOutbound = null;
    public ?Pickup $pickupInbound = null;

    // Parking service for self-organized transportation (boolean: true if parking requested)
    public bool $parking = false;

    // Parking service object for pricing calculation (new, contains actual service with pricing)
    public ?Service $parkingService = null;

    // License plate for participants with parking (optional, visible only when parking is selected)
    public ?string $licensePlate = null;

    // Selected insurance for this participant (individual insurance selection per participant)
    public ?Insurance $insurance = null;

    // Bulk insurance booking flag (applicant only: when checked, assigns same insurance type to all participants)
    public bool $bulkInsuranceBooking = false;

    /**
     * @var array<array{type: string, message: string}> Notification messages for user feedback
     */
    public array $notifications = [];

    public function __construct()
    {
        $this->address = new Address();
    }

    public static function fromPersonalData(PersonalData $personalData): static
    {
        $instance = new static();

        $instance->status = $personalData->status;
        $instance->addressId = $personalData->addressId;
        $instance->personId = $personalData->personId;
        $instance->mutable = $personalData->mutable;
        $instance->firstName = $personalData->firstName;
        $instance->lastName = $personalData->name;
        $instance->gender = $personalData->gender;
        $instance->nationality = $personalData->nationality;
        $instance->email = $personalData->communication?->email;
        $instance->mobile = $personalData->communication?->mobile;
        $instance->dateOfBirth = $personalData->dateOfBirth;
        $instance->height = $personalData->height;
        $instance->weight = $personalData->weight;
        $instance->shoeSize = $personalData->shoeSize;

        return $instance;
    }

    public function isApplicant(): bool
    {
        return 0 === $this->index;
    }

    public function isCanceled(): bool
    {
        return 'S' === $this->status;
    }

    public function isOption(): bool
    {
        return 'O' === $this->status;
    }

    /**
     * Calculates the participant's age in complete years.
     *
     * Uses the same logic as existing age evaluators in the system
     * for consistency across age-related calculations.
     *
     * @param \DateTimeImmutable|null $referenceDate The date to calculate age at (defaults to current date)
     *
     * @return int|null The calculated age in complete years, or null if no birth date
     */
    public function getAge(?\DateTimeImmutable $referenceDate = null): ?int
    {
        if (null === $this->dateOfBirth) {
            return null;
        }

        $referenceDate = $referenceDate ?? new \DateTimeImmutable();

        return $this->dateOfBirth->diff($referenceDate)->y;
    }

    /**
     * Checks if the participant has selected an insurance.
     *
     * @return bool True if an insurance is selected
     */
    public function hasInsurance(): bool
    {
        return null !== $this->insurance;
    }

    /**
     * Gets the insurance label for display purposes.
     *
     * @return string|null The insurance label or null if no insurance selected
     */
    public function getInsuranceLabel(): ?string
    {
        return $this->insurance?->label;
    }

    /**
     * Gets the insurance price for pricing calculations.
     *
     * @return float The insurance price (0.0 if no insurance selected)
     */
    public function getInsurancePrice(): float
    {
        return $this->insurance?->price ?? 0.0;
    }

    /**
     * Adds a notification message for user feedback.
     *
     * @param string $type    The notification type (info, warning, success)
     * @param string $message The notification message
     */
    public function addNotification(string $type, string $message): void
    {
        $this->notifications[] = [
            'type' => $type,
            'message' => $message,
        ];
    }
}