<?php

declare(strict_types=1);

namespace App\Framework\Exception;

class FrameworkException extends \RuntimeException
{
    protected ExceptionContext $context;

    protected ?ErrorCode $errorCode;

    protected ?int $retryAfter;

    public function __construct(
        string $message,
        ExceptionContext $context,
        int $code = 0,
        ?\Throwable $previous = null,
        ?ErrorCode $errorCode = null,
        ?int $retryAfter = null
    ) {
        parent::__construct($message, $code, $previous);
        $this->context = $context;
        $this->errorCode = $errorCode;
        $this->retryAfter = $retryAfter ?? $errorCode?->getRetryAfterSeconds();
    }

    public function getContext(): ExceptionContext
    {
        return $this->context;
    }

    public function __clone(): void
    {
        // Allow cloning of the exception for immutable modifications
    }

    public function withContext(ExceptionContext $context): self
    {
        return new static(
            $this->getMessage(),
            $context,
            $this->getCode(),
            $this->getPrevious(),
            $this->errorCode,
            $this->retryAfter
        );
    }

    public function withOperation(string $operation, ?string $component = null): self
    {
        return $this->withContext(
            $this->context->withOperation($operation, $component)
        );
    }

    public function withData(array $data): self
    {
        return $this->withContext(
            $this->context->withData($data)
        );
    }

    public function withDebug(array $debug): self
    {
        return $this->withContext(
            $this->context->withDebug($debug)
        );
    }

    public function withMetadata(array $metadata): self
    {
        return $this->withContext(
            $this->context->withMetadata($metadata)
        );
    }

    public function toArray(): array
    {
        $array = [
            'class' => static::class,
            'message' => $this->getMessage(),
            'code' => $this->getCode(),
            'file' => $this->getFile(),
            'line' => $this->getLine(),
            'context' => $this->context->toArray(),
            'trace' => $this->getTraceAsString(),
        ];

        // ErrorCode-spezifische Daten hinzufügen wenn vorhanden
        if ($this->errorCode) {
            $array['error_code'] = $this->errorCode->value;
            $array['error_category'] = $this->errorCode->getCategory();
            $array['description'] = $this->errorCode->getDescription();
            $array['recovery_hint'] = $this->errorCode->getRecoveryHint();
            $array['is_recoverable'] = $this->errorCode->isRecoverable();
            $array['retry_after'] = $this->retryAfter;
        }

        return $array;
    }

    // === Factory Methods ===

    /**
     * Einfache Exception ohne ErrorCode - für schnelle Verwendung
     */
    public static function simple(
        string $message,
        ?\Throwable $previous = null,
        int $code = 0
    ): static {
        return new static(
            message: $message,
            context: ExceptionContext::empty(),
            code: $code,
            previous: $previous
        );
    }

    /**
     * Exception mit ErrorCode und automatischer Beschreibung
     */
    public static function create(
        ErrorCode $errorCode,
        ?string $message = null,
        ?ExceptionContext $context = null,
        ?\Throwable $previous = null,
        int $code = 0
    ): static {
        $finalMessage = $message ?? $errorCode->getDescription();
        $finalContext = $context ?? ExceptionContext::empty();

        return new static(
            message: $finalMessage,
            context: $finalContext,
            code: $code,
            previous: $previous,
            errorCode: $errorCode
        );
    }

    /**
     * Exception mit Operation Context
     */
    public static function forOperation(
        string $operation,
        ?string $component = null,
        ?string $message = null,
        ?ErrorCode $errorCode = null,
        ?\Throwable $previous = null,
        int $code = 0
    ): static {
        $context = ExceptionContext::forOperation($operation, $component);
        $finalMessage = $message ?? $errorCode?->getDescription() ?? "Operation failed: $operation";

        return new static(
            message: $finalMessage,
            context: $context,
            code: $code,
            previous: $previous,
            errorCode: $errorCode
        );
    }

    /**
     * Exception mit vollständigem Context und Daten
     */
    public static function fromContext(
        string $message,
        ExceptionContext $context,
        ?ErrorCode $errorCode = null,
        ?\Throwable $previous = null,
        int $code = 0
    ): static {
        return new static(
            message: $message,
            context: $context,
            code: $code,
            previous: $previous,
            errorCode: $errorCode
        );
    }

    // === ErrorCode Getter Methods ===

    public function getErrorCode(): ?ErrorCode
    {
        return $this->errorCode;
    }

    public function getRetryAfter(): ?int
    {
        return $this->retryAfter;
    }

    public function isRecoverable(): bool
    {
        return $this->errorCode?->isRecoverable() ?? false;
    }

    public function getRecoveryHint(): ?string
    {
        return $this->errorCode?->getRecoveryHint();
    }

    // === ErrorCode Utility Methods ===

    /**
     * Prüft ob Exception von bestimmtem Error Code Typ ist
     */
    public function isErrorCode(ErrorCode $errorCode): bool
    {
        return $this->errorCode === $errorCode;
    }

    /**
     * Prüft ob Exception zu bestimmter Kategorie gehört
     */
    public function isCategory(string $category): bool
    {
        return $this->errorCode?->getCategory() === strtoupper($category);
    }

    /**
     * Setzt ErrorCode nachträglich
     */
    public function withErrorCode(ErrorCode $errorCode): self
    {
        $new = clone $this;
        $new->errorCode = $errorCode;
        $new->retryAfter = $errorCode->getRetryAfterSeconds();

        return $new;
    }

    /**
     * Setzt Custom Retry-Zeit
     */
    public function withRetryAfter(int $seconds): self
    {
        $new = clone $this;
        $new->retryAfter = $seconds;

        return $new;
    }

    /**
     * Get exception data from context
     */
    public function getData(): array
    {
        return $this->context->data;
    }

    /**
     * String-Representation für Logging
     */
    public function __toString(): string
    {
        $errorCodePart = $this->errorCode ? '[' . $this->errorCode->value . ']' : '';

        return sprintf(
            '%s %s: %s in %s:%d',
            static::class,
            $errorCodePart,
            $this->getMessage(),
            $this->getFile(),
            $this->getLine()
        );
    }
}