<?php

declare(strict_types=1);

namespace KTXC\Security\Event;

use KTXC\Models\Firewall\FirewallRuleObject;
use KTXF\Event\Event;

abstract class FirewallRuleEvent extends Event implements SecurityEventInterface
{
    final protected function __construct(
        private readonly string $ruleId,
        private readonly string $ruleScope,
        private readonly string $ruleType,
        private readonly string $ruleAction,
        private readonly string $ruleValue,
        private readonly ?string $reason,
        private readonly string $origin,
        private readonly ?string $expiresAt,
        private readonly array $details,
        ?string $tenantId,
        ?string $identityId,
    ) {
        if ($ruleId === '') {
            throw new \InvalidArgumentException('Firewall rule events require a rule ID.');
        }
        foreach ([
            'scope' => $ruleScope,
            'type' => $ruleType,
            'action' => $ruleAction,
            'value' => $ruleValue,
            'origin' => $origin,
        ] as $field => $value) {
            if ($value === '') {
                throw new \InvalidArgumentException("Firewall rule events require a rule {$field}.");
            }
        }
        foreach ([
            'scope' => $ruleScope,
            'type' => $ruleType,
            'action' => $ruleAction,
            'value' => $ruleValue,
            'origin' => $origin,
        ] as $field => $value) {
            if ($value === '') {
                throw new \InvalidArgumentException("Firewall rule events require a rule {$field}.");
            }
        }

        parent::__construct(
            static::class,
            [
                'ruleId' => $ruleId,
                'ruleScope' => $ruleScope,
                'ruleType' => $ruleType,
                'ruleAction' => $ruleAction,
                'ruleValue' => $ruleValue,
                'reason' => $reason,
                'origin' => $origin,
                'expiresAt' => $expiresAt,
                ...$details,
            ],
            $tenantId,
            $identityId,
        );
    }

    public static function fromRule(
        FirewallRuleObject $rule,
        ?string $actorId = null,
        array $change = [],
    ): static {
        $metadata = $rule->getMetadata() ?? [];
        $details = [...$metadata, ...$change];
        foreach ([
            'ruleId',
            'ruleScope',
            'ruleType',
            'ruleAction',
            'ruleValue',
            'reason',
            'origin',
            'expiresAt',
        ] as $reservedKey) {
            unset($details[$reservedKey]);
        }

        return new static(
            ruleId: (string) $rule->getId(),
            ruleScope: (string) $rule->getScope(),
            ruleType: (string) $rule->getType(),
            ruleAction: (string) $rule->getAction(),
            ruleValue: (string) $rule->getValue(),
            reason: $rule->getReason(),
            origin: (string) ($metadata['origin'] ?? 'manual'),
            expiresAt: $rule->getExpiresAt()?->format(\DateTimeInterface::ATOM),
            details: $details,
            tenantId: $rule->getTenantId(),
            identityId: $actorId ?? $rule->getCreatedBy(),
        );
    }

    public function getRuleId(): string
    {
        return $this->ruleId;
    }

    public function getRuleScope(): string
    {
        return $this->ruleScope;
    }

    public function getRuleType(): string
    {
        return $this->ruleType;
    }

    public function getRuleAction(): string
    {
        return $this->ruleAction;
    }

    public function getRuleValue(): string
    {
        return $this->ruleValue;
    }

    public function getOrigin(): string
    {
        return $this->origin;
    }

    public function getExpiresAt(): ?string
    {
        return $this->expiresAt;
    }

    public function getDetails(): array
    {
        return $this->details;
    }

    public function getUserId(): ?string
    {
        return null;
    }

    public function getReason(): ?string
    {
        return $this->reason;
    }

    public function getSeverity(): SecurityEventSeverity
    {
        return SecurityEventSeverity::INFO;
    }
}