/**
 * Unbound Code Storage - API Key and Config Management
 *
 * Stores API key securely in system keychain when available,
 * falls back to file-based storage for cross-platform compatibility
 */
export interface UnboundConfig {
    model?: string;
    baseUrl?: string;
    logLevel?: string;
    lastUsed?: string;
    apiKey?: string;
    useVertex?: boolean;
    vertexPrimaryModel?: string;
    vertexSmallModel?: string;
    isConfigured?: boolean;
}
export declare class UnboundStorage {
    private readonly SERVICE_NAME;
    private readonly ACCOUNT_NAME;
    private readonly CONFIG_DIR;
    private readonly CONFIG_FILE;
    constructor();
    /**
     * Generate machine-specific encryption key
     */
    private getMachineKey;
    /**
     * Encrypt sensitive data
     */
    private encrypt;
    /**
     * Decrypt sensitive data
     */
    private decrypt;
    private ensureConfigDir;
    private readConfig;
    private writeConfig;
    /**
     * Store API key securely (keychain preferred, file fallback)
     */
    setApiKey(apiKey: string, silent?: boolean): Promise<void>;
    /**
     * Get stored API key (keychain preferred, file fallback)
     */
    getApiKey(): Promise<string | null>;
    /**
     * Get stored model
     */
    getModel(): Promise<string>;
    /**
     * Store model preference
     */
    setModel(model: string): Promise<void>;
    /**
     * Get full configuration
     */
    getFullConfig(): Promise<UnboundConfig>;
    /**
     * Update configuration
     */
    updateConfig(updates: Partial<UnboundConfig>): Promise<void>;
    /**
     * Clear all stored data including keychain and config file
     */
    clearConfig(): Promise<void>;
    clearConfigDueToInvalidKey(): Promise<void>;
    /**
     * Check if API key is stored
     */
    hasApiKey(): Promise<boolean>;
    /**
     * Check if API key is stored (sync version for backward compatibility)
     */
    hasApiKeySync(): boolean;
    /**
     * Get vertex configuration
     */
    getVertexConfig(): Promise<{
        useVertex: boolean;
        model?: string;
        smallModel?: string;
    }>;
    /**
     * Store vertex configuration
     */
    setVertexConfig(vertexConfig: {
        useVertex: boolean;
        model?: string;
        smallModel?: string;
    }): Promise<void>;
    /**
     * Check if user has completed initial configuration
     */
    isConfigured(): Promise<boolean>;
    /**
     * Mark configuration as complete
     */
    markAsConfigured(): Promise<void>;
    /**
     * Get startup display configuration
     */
    getStartupConfig(): Promise<{
        hasApiKey: boolean;
        model: string;
        useVertex: boolean;
        vertexPrimaryModel?: string;
        vertexSmallModel?: string;
        baseUrl: string;
    }>;
}
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