import { ICaseTransformer, ICaseTransformContext } from '../interfaces';
/**
 * Abstract base class for case transformation strategies
 */
export declare abstract class BaseCaseTransformer implements ICaseTransformer {
    protected readonly caseStyle: string;
    protected readonly description: string;
    constructor(caseStyle: string, description: string);
    /**
     * Transform a string to the target case style
     * Must be implemented by subclasses
     */
    abstract transform(input: string): string;
    /**
     * Transform a string with context information
     * Default implementation calls transform() and logs the result
     * @param input - The input string to transform
     * @param context - The transformation context
     * @returns The transformed string
     */
    transformWithContext(input: string, context: ICaseTransformContext): string;
    /**
     * Detect if a string matches this case style
     * Must be implemented by subclasses
     */
    abstract detect(input: string): boolean;
    /**
     * Get the case style name
     */
    getCaseStyle(): string;
    /**
     * Get the case style description
     */
    getDescription(): string;
    /**
     * Validate input string
     * @param input - The input string to validate
     * @returns True if the input is valid
     */
    protected isValidInput(input: string): boolean;
    /**
     * Handle empty or invalid input
     * @param input - The input string
     * @returns The input as-is if invalid, or transformed if valid
     */
    protected handleInvalidInput(input: string): string;
    /**
     * Get transformation context information
     * @param context - The transformation context
     * @returns Context information string
     */
    protected getContextInfo(context: ICaseTransformContext): string;
    /**
     * Log transformation activity (for debugging)
     * @param input - The input string
     * @param output - The output string
     * @param context - The transformation context
     */
    protected logTransformation(input: string, output: string, context: ICaseTransformContext): void;
}
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