import type { InstallerEventEmitter } from '../events.js';
/**
 * Configuration passed to adapter constructors.
 */
export interface AdapterConfig {
    /** Event emitter to subscribe to */
    emitter: InstallerEventEmitter;
    /**
     * Callback to send events back to the machine.
     * Used for user responses (confirmations, credentials, etc.)
     */
    sendEvent: (event: {
        type: string;
        [key: string]: unknown;
    }) => void;
    /** Enable verbose debug output (stack traces, etc.) */
    debug?: boolean;
}
/**
 * Interface all UI adapters must implement.
 *
 * Adapters are event subscribers that translate machine events
 * into framework-specific UI rendering. They don't control flow—
 * they react to it.
 */
export interface InstallerAdapter {
    /**
     * Start the adapter.
     * - Subscribe to emitter events
     * - Initialize UI framework (show intro, enter fullscreen, etc.)
     */
    start(): Promise<void>;
    /**
     * Stop the adapter.
     * - Unsubscribe from all events
     * - Clean up UI (exit fullscreen, restore terminal, etc.)
     */
    stop(): Promise<void>;
    /** The emitter this adapter subscribes to */
    readonly emitter: InstallerEventEmitter;
}