<?php

declare(strict_types=1);

namespace App\Framework\Exception;

/**
 * Database-spezifische Exception mit vorgefertigten Error Codes
 */
class DatabaseException extends FrameworkException
{
    // === Factory Methods für häufige Database Errors ===

    public static function connectionFailed(
        ?string $details = null,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation('database.connect', 'Database')
            ->withData(['details' => $details]);

        $message = $details ? "Database connection failed: $details" : null;

        return static::create(
            ErrorCode::DB_CONNECTION_FAILED,
            $message,
            $context,
            $previous
        );
    }

    public static function queryFailed(
        string $sql,
        ?string $error = null,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation('database.query', 'Database')
            ->withData(['sql' => $sql, 'error' => $error])
            ->withDebug(['query_length' => strlen($sql)]);

        return static::create(
            ErrorCode::DB_QUERY_FAILED,
            "Query execution failed: $error",
            $context,
            $previous
        );
    }

    public static function constraintViolation(
        string $constraint,
        ?string $table = null,
        ?array $data = null,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation('database.constraint', 'Database')
            ->withData([
                'constraint' => $constraint,
                'table' => $table,
                'violation_data' => $data,
            ]);

        return static::create(
            ErrorCode::DB_CONSTRAINT_VIOLATION,
            "Database constraint violation: $constraint" . ($table ? " on table $table" : ''),
            $context,
            $previous
        );
    }

    public static function transactionFailed(
        ?string $details = null,
        ?array $operations = null,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation('database.transaction', 'Database')
            ->withData(['details' => $details, 'operations' => $operations]);

        return static::create(
            ErrorCode::DB_TRANSACTION_FAILED,
            "Transaction failed: $details",
            $context,
            $previous
        );
    }

    public static function poolExhausted(
        int $maxConnections,
        int $currentConnections,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation('database.pool', 'Database')
            ->withData([
                'max_connections' => $maxConnections,
                'current_connections' => $currentConnections,
                'usage_percentage' => round(($currentConnections / $maxConnections) * 100, 2),
            ]);

        return static::create(
            ErrorCode::DB_POOL_EXHAUSTED,
            "Connection pool exhausted ($currentConnections/$maxConnections)",
            $context,
            $previous
        );
    }

    public static function timeout(
        float $timeoutSeconds,
        string $operation = 'query',
        ?string $details = null,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation("database.$operation", 'Database')
            ->withData([
                'timeout_seconds' => $timeoutSeconds,
                'operation' => $operation,
                'details' => $details,
            ]);

        return static::create(
            ErrorCode::DB_TIMEOUT,
            "Database operation '$operation' timed out after {$timeoutSeconds}s",
            $context,
            $previous
        );
    }

    public static function migrationFailed(
        string $migrationName,
        ?string $error = null,
        ?string $version = null,
        ?\Throwable $previous = null
    ): static {
        $context = ExceptionContext::forOperation('database.migration', 'Database')
            ->withData([
                'migration' => $migrationName,
                'version' => $version,
                'error' => $error,
            ]);

        return static::create(
            ErrorCode::DB_MIGRATION_FAILED,
            "Migration '$migrationName' failed: $error",
            $context,
            $previous
        );
    }
}