/**
 * VSCode Detector for OpenCode Diff Plugin
 *
 * Detects if VSCode is running and if the extension is active.
 * Used to determine whether to show diffs in VSCode or fall back to TUI.
 */
/**
 * Detection method that was successful
 */
export type DetectionMethod = 'vscode-dir' | 'cli' | 'process' | 'none';
/**
 * Result of VSCode detection
 */
export interface VSCodeDetectionResult {
    /** Whether VSCode is detected as running */
    isRunning: boolean;
    /** Which detection method succeeded */
    method: DetectionMethod;
    /** Additional details about the detection */
    details?: string;
    /** Whether the VSCode extension is active */
    extensionActive?: boolean;
}
/**
 * Default timeout for detection operations in milliseconds
 */
export declare const DEFAULT_DETECTION_TIMEOUT_MS = 2000;
/**
 * VSCode Detector
 *
 * Detects VSCode presence and status using multiple methods:
 * 1. Check for .vscode/ directory in workspace root (fastest)
 * 2. Run `code --status` CLI command (reliable if CLI installed)
 * 3. Check for VSCode process (platform-specific fallback)
 */
export declare class VSCodeDetector {
    private workspaceRoot;
    private timeoutMs;
    /**
     * Create a new VSCodeDetector
     * @param workspaceRoot - The workspace root directory to check for .vscode/
     * @param timeoutMs - Timeout for detection operations (default: 2000ms)
     */
    constructor(workspaceRoot?: string, timeoutMs?: number);
    /**
     * Check if VSCode process is running
     * Tries multiple detection methods in order of reliability
     * @returns Promise<boolean> - true if VSCode is detected as running
     */
    isVSCodeRunning(): Promise<boolean>;
    /**
     * Check if the VSCode extension is active
     * This checks if the extension's state file exists and is recent
     * @returns Promise<boolean> - true if extension appears to be active
     */
    isVSCodeExtensionActive(): Promise<boolean>;
    /**
     * Check if .vscode/ directory exists in the workspace root
     * This is a fast synchronous check
     * @returns boolean - true if .vscode/ directory exists
     */
    isVSCodeWorkspace(): boolean;
    /**
     * Comprehensive VSCode detection
     * Tries multiple methods in order and returns detailed results
     * @param timeoutMs - Optional override for timeout (uses constructor value if not provided)
     * @returns Promise<VSCodeDetectionResult> - detailed detection result
     */
    detect(timeoutMs?: number): Promise<VSCodeDetectionResult>;
    /**
     * Detects if VSCode has crashed or is unresponsive
     * @param timeoutMs - Timeout for detection
     * @returns Promise<boolean> - true if VSCode appears crashed
     */
    hasVSCodeCrashed(timeoutMs?: number): Promise<boolean>;
    /**
     * Gets the age of the last VSCode extension activity
     * @returns Age in milliseconds, or null if no state file
     */
    getLastActivityAge(): number | null;
    /**
     * Checks if VSCode extension appears to be healthy
     * @returns boolean - true if extension appears healthy
     */
    isExtensionHealthy(): boolean;
    /**
     * Detect VSCode via CLI command
     * @param timeoutMs - Timeout for the command
     * @returns Promise<boolean> - true if VSCode CLI responds
     */
    private detectViaCli;
    /**
     * Detect VSCode by checking running processes
     * Platform-specific implementation for macOS, Linux, and Windows
     * @param timeoutMs - Timeout for the command
     * @returns Promise<boolean> - true if VSCode process is found
     */
    private detectViaProcess;
    /**
     * Detect VSCode process on macOS
     * @param timeoutMs - Timeout for the command
     * @returns Promise<boolean> - true if VSCode process is found
     */
    private detectMacOSProcess;
    /**
     * Detect VSCode process on Linux
     * @param timeoutMs - Timeout for the command
     * @returns Promise<boolean> - true if VSCode process is found
     */
    private detectLinuxProcess;
    /**
     * Detect VSCode process on Windows
     * @param timeoutMs - Timeout for the command
     * @returns Promise<boolean> - true if VSCode process is found
     */
    private detectWindowsProcess;
    /**
     * Update the workspace root for detection
     * @param workspaceRoot - New workspace root directory
     */
    setWorkspaceRoot(workspaceRoot: string): void;
    /**
     * Update the timeout for detection operations
     * @param timeoutMs - New timeout in milliseconds
     */
    setTimeout(timeoutMs: number): void;
    /**
     * Get the current workspace root
     * @returns string - Current workspace root directory
     */
    getWorkspaceRoot(): string;
    /**
     * Get the current timeout setting
     * @returns number - Current timeout in milliseconds
     */
    getTimeout(): number;
}
export default VSCodeDetector;
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