<?php

declare(strict_types=1);

namespace Magdev\WcLicensedProductClient\Dto;

enum LicenseState: string
{
    case Active = 'active';
    case Inactive = 'inactive';
    case Expired = 'expired';
    case Revoked = 'revoked';
}

final readonly class LicenseStatus
{
    public function __construct(
        public bool $valid,
        public LicenseState $status,
        public string $domain,
        public ?\DateTimeImmutable $expiresAt,
        public int $activationsCount,
        public int $maxActivations,
    ) {
    }

    public static function fromArray(array $data): self
    {
        // Validate required fields
        if (!isset($data['valid']) || !is_bool($data['valid'])) {
            throw new \InvalidArgumentException('Invalid response: missing or invalid valid field');
        }
        if (!isset($data['status']) || !is_string($data['status'])) {
            throw new \InvalidArgumentException('Invalid response: missing or invalid status field');
        }
        if (!isset($data['domain']) || !is_string($data['domain'])) {
            throw new \InvalidArgumentException('Invalid response: missing or invalid domain field');
        }
        if (!isset($data['activations_count']) || !is_int($data['activations_count'])) {
            throw new \InvalidArgumentException('Invalid response: missing or invalid activations_count field');
        }
        if (!isset($data['max_activations']) || !is_int($data['max_activations'])) {
            throw new \InvalidArgumentException('Invalid response: missing or invalid max_activations field');
        }

        $expiresAt = null;
        if (isset($data['expires_at']) && $data['expires_at'] !== null) {
            try {
                $expiresAt = new \DateTimeImmutable($data['expires_at']);
            } catch (\Exception $e) {
                throw new \InvalidArgumentException(
                    'Invalid response: invalid date format for expires_at',
                    0,
                    $e
                );
            }
        }

        try {
            $status = LicenseState::from($data['status']);
        } catch (\ValueError $e) {
            throw new \InvalidArgumentException(
                'Invalid response: unknown license status value',
                0,
                $e
            );
        }

        return new self(
            valid: $data['valid'],
            status: $status,
            domain: $data['domain'],
            expiresAt: $expiresAt,
            activationsCount: $data['activations_count'],
            maxActivations: $data['max_activations'],
        );
    }

    public function isLifetime(): bool
    {
        return $this->expiresAt === null;
    }

    public function hasAvailableActivations(): bool
    {
        return $this->activationsCount < $this->maxActivations;
    }
}