import { LspTransport } from './transport.js';
/**
 * LSP protocol types
 */
export interface Location {
    uri: string;
    range: {
        start: {
            line: number;
            character: number;
        };
        end: {
            line: number;
            character: number;
        };
    };
}
export interface Diagnostic {
    range: {
        start: {
            line: number;
            character: number;
        };
        end: {
            line: number;
            character: number;
        };
    };
    severity?: number;
    code?: string | number;
    source?: string;
    message: string;
}
export interface Hover {
    contents: string | {
        kind: string;
        value: string;
    };
    range?: {
        start: {
            line: number;
            character: number;
        };
        end: {
            line: number;
            character: number;
        };
    };
}
export interface WorkspaceEdit {
    changes?: Record<string, Array<{
        range: {
            start: {
                line: number;
                character: number;
            };
            end: {
                line: number;
                character: number;
            };
        };
        newText: string;
    }>>;
    documentChanges?: any[];
}
/**
 * Detect LSP language ID from file path.
 */
export declare function detectLanguage(filePath: string): string | null;
/**
 * Convert file path to LSP URI (file:///...).
 */
export declare function pathToUri(filePath: string): string;
/**
 * Convert LSP URI to file path.
 */
export declare function uriToPath(uri: string): string;
/**
 * LSP Client — communicates with an LSP server via JSON-RPC 2.0.
 *
 * Supports:
 * - initialize/initialized handshake
 * - textDocument/didOpen, didClose, didChange
 * - textDocument/definition, references, hover, rename
 * - textDocument/publishDiagnostics notifications
 */
export declare class LspClient {
    readonly transport: LspTransport;
    serverCapabilities: Record<string, any> | null;
    initialized: boolean;
    private fileVersions;
    private fileDiagnostics;
    private workspaceRoot;
    constructor(transport: LspTransport);
    /**
     * Initialize the LSP session with the server.
     */
    initialize(workspaceRoot: string): Promise<void>;
    /**
     * Open a file in the LSP server.
     */
    openFile(filePath: string, content: string): void;
    /**
     * Close a file in the LSP server.
     */
    closeFile(filePath: string): void;
    /**
     * Navigate to the definition of a symbol.
     */
    gotoDefinition(filePath: string, line: number, character: number): Promise<Location[]>;
    /**
     * Find all references to a symbol.
     */
    findReferences(filePath: string, line: number, character: number): Promise<Location[]>;
    /**
     * Get hover information for a symbol.
     */
    hover(filePath: string, line: number, character: number): Promise<Hover | null>;
    /**
     * Rename a symbol across the workspace.
     */
    rename(filePath: string, line: number, character: number, newName: string): Promise<WorkspaceEdit | null>;
    /**
     * Get diagnostics for a file (collected from publishDiagnostics notifications).
     */
    getDiagnostics(filePath: string): Diagnostic[];
    /**
     * Clear diagnostics for a file.
     */
    clearDiagnostics(filePath: string): void;
    /**
     * Shutdown the LSP session gracefully.
     */
    close(): Promise<void>;
}