<?php

declare(strict_types=1);

namespace App\Entity;

use App\Repository\AuditLogRepository;
use DateTimeImmutable;
use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;

#[ORM\Entity(repositoryClass: AuditLogRepository::class)]
#[ORM\Table(name: 'audit_logs')]
#[ORM\Index(name: 'idx_audit_entity', columns: ['entityType', 'entityId'])]
#[ORM\Index(name: 'idx_audit_created_at', columns: ['createdAt'])]
#[ORM\HasLifecycleCallbacks]
class AuditLog
{
    #[ORM\Id]
    #[ORM\Column(type: Types::STRING, length: 36)]
    private ?string $id = null;

    #[ORM\Column(type: Types::STRING, length: 50)]
    private string $entityType;

    #[ORM\Column(type: Types::STRING, length: 36)]
    private string $entityId;

    #[ORM\Column(type: Types::STRING, length: 20)]
    private string $action;

    #[ORM\Column(type: Types::JSON, nullable: true)]
    private ?array $diff = null;

    #[ORM\Column(type: Types::JSON, nullable: true)]
    private ?array $snapshot = null;

    #[ORM\Column(type: Types::STRING, length: 36, nullable: true)]
    private ?string $actorProfileId = null;

    #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
    private DateTimeImmutable $createdAt;

    public function __construct(
        string $entityType,
        string $entityId,
        string $action,
        ?array $diff = null,
        ?array $snapshot = null,
        ?string $actorProfileId = null,
    ) {
        $this->entityType     = $entityType;
        $this->entityId       = $entityId;
        $this->action         = $action;
        $this->diff           = $diff;
        $this->snapshot       = $snapshot;
        $this->actorProfileId = $actorProfileId;
    }

    #[ORM\PrePersist]
    public function initializeAuditLog(): void
    {
        if (!isset($this->createdAt)) {
            $this->createdAt = new DateTimeImmutable();
        }

        if (null === $this->id) {
            $this->id = $this->generateCuid();
        }
    }

    public function getId(): ?string
    {
        return $this->id;
    }

    public function getEntityType(): string
    {
        return $this->entityType;
    }

    public function getEntityId(): string
    {
        return $this->entityId;
    }

    public function getAction(): string
    {
        return $this->action;
    }

    public function getDiff(): ?array
    {
        return $this->diff;
    }

    public function getSnapshot(): ?array
    {
        return $this->snapshot;
    }

    public function getActorProfileId(): ?string
    {
        return $this->actorProfileId;
    }

    public function getCreatedAt(): DateTimeImmutable
    {
        return $this->createdAt;
    }

    private function generateCuid(): string
    {
        // Keep the same lightweight CUID-like strategy used across the project.
        return 'cl'.substr(strtolower(base_convert(bin2hex(random_bytes(12)), 16, 36)), 0, 24);
    }
}