/**
 * ConfigPathResolver - Resolves configuration file paths with fallback mechanism
 *
 * Priority:
 * 1. User config: ~/.mage-db-sync/config/
 * 2. Package config: <npm-install-path>/config/ (fallback)
 */
export declare class ConfigPathResolver {
    private static userConfigDir;
    private static packageConfigDir;
    /**
     * Get the user config directory path
     */
    static getUserConfigDir(): string;
    /**
     * Set the package config directory (npm installation path)
     */
    static setPackageConfigDir(npmPath: string): void;
    /**
     * Get the package config directory path
     */
    static getPackageConfigDir(): string;
    /**
     * Ensure user config directory exists
     */
    static ensureUserConfigDir(): void;
    /**
     * Resolve config file path with fallback
     *
     * Checks in order:
     * 1. ~/.mage-db-sync/config/{relativePath}
     * 2. <npm-install-path>/config/{relativePath}
     *
     * @param relativePath - Relative path within config directory (e.g., 'settings.json', 'databases/staging.json')
     * @returns Full path to config file, or null if not found
     */
    static resolveConfigPath(relativePath: string): string | null;
    /**
     * Resolve config file path with fallback, throws if not found
     *
     * @param relativePath - Relative path within config directory
     * @returns Full path to config file
     * @throws Error if config file not found
     */
    static resolveConfigPathOrThrow(relativePath: string): string;
    /**
     * Get all possible locations for a config file
     */
    static getConfigLocations(relativePath: string): string[];
    /**
     * Check if config exists in user directory
     */
    static existsInUserConfig(relativePath: string): boolean;
    /**
     * Check if config exists in package directory
     */
    static existsInPackageConfig(relativePath: string): boolean;
    /**
     * Get the location where a config file was found
     */
    static getConfigLocation(relativePath: string): 'user' | 'package' | null;
    /**
     * Copy sample file to target with fallback support (preserving symlinks)
     */
    static copySampleFile(sampleRelativePath: string, targetRelativePath: string): boolean;
}
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