import type { TSESTree } from "@typescript-eslint/utils";
import { Effect } from "effect";
import type { ModulePathValidationResult, SuggestionWithScore } from "../../core/index.js";
import type { FilesystemError, FilesystemService } from "../index.js";
/**
 * Finds similar module paths in directory
 *
 * @param requestedPath - Requested module path
 * @param currentFilePath - Current file path
 * @param fsService - Filesystem service
 * @returns Effect with similar module paths
 *
 * @purity SHELL (uses SHELL service + CORE algorithms)
 * @effect Filesystem I/O
 * @complexity O(n log n) where n = number of files
 */
export declare const findSimilarModulePaths: (requestedPath: string, currentFilePath: string, fsService: FilesystemService) => Effect.Effect<readonly SuggestionWithScore[], FilesystemError>;
/**
 * Validates module path and generates suggestions
 *
 * @param node - Import declaration or require call node
 * @param requestedPath - Requested module path
 * @param currentFilePath - Current file path
 * @param fsService - Filesystem service
 * @returns Effect with validation result
 *
 * @purity SHELL (uses SHELL service + CORE algorithms)
 * @effect Filesystem I/O
 * @complexity O(n log n) where n = number of files
 */
export declare const validateModulePath: (node: TSESTree.ImportDeclaration | TSESTree.CallExpression, requestedPath: string, currentFilePath: string, fsService: FilesystemService) => Effect.Effect<ModulePathValidationResult, FilesystemError>;
/**
 * Checks if module path exists
 *
 * @param modulePath - Module path to check
 * @param currentFilePath - Current file path
 * @param fsService - Filesystem service
 * @returns Effect with boolean result
 *
 * @purity SHELL (uses SHELL service)
 * @effect Filesystem I/O
 * @complexity O(1)
 */
export declare const modulePathExists: (modulePath: string, currentFilePath: string, fsService: FilesystemService) => Effect.Effect<boolean, FilesystemError>;
/**
 * Calculates minimum similarity score based on input length
 *
 * @param inputLength - Length of user input
 * @returns Minimum score threshold
 *
 * @pure true
 * @purity CORE
 * @effect None
 * @invariant result ∈ [0.33, 0.35]
 * @complexity O(1)
 * @throws Never
 *
 * FORMAT THEOREM: minScore = inputLength ≥ 10 ? 0.33 : 0.35
 */
export declare function calculateMinScore(inputLength: number): number;
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