import type { AgentSessionRuntime } from "@earendil-works/pi-coding-agent";
import type { AutocompleteConfig } from "../../config.js";
import type { InputEditor } from "../../input-editor.js";
export type AppAutocompleteControllerHost = {
    runtime(): AgentSessionRuntime | undefined;
    inputEditor(): InputEditor;
    autocompleteConfig(): AutocompleteConfig;
    isRunning(): boolean;
    render(): void;
};
export type AutocompleteHistoryMessage = {
    role: "user" | "assistant";
    text: string;
};
type AutocompleteRunner = typeof completeInputWithPi;
export type AppAutocompleteControllerOptions = {
    completeInputWithPi?: AutocompleteRunner;
    debounceMs?: number;
};
export declare class AppAutocompleteController {
    private readonly host;
    private timer;
    private lastObservedKey;
    private requestSeq;
    private suggestion;
    private activeAbortController;
    private readonly completeInputWithPi;
    private readonly debounceOverrideMs;
    constructor(host: AppAutocompleteControllerHost, options?: AppAutocompleteControllerOptions);
    observeInput(): void;
    suggestionText(): string | undefined;
    acceptSuggestion(): boolean;
    dispose(): void;
    private runAutocomplete;
    private currentTarget;
    private targetKey;
    private sameTarget;
    private currentDebounceMs;
    private clearTimer;
    private cancelInFlight;
}
export declare function completeInputWithPi(runtime: AgentSessionRuntime, draft: string, config: AutocompleteConfig, signal?: AbortSignal): Promise<string>;
export declare function autocompleteHistoryFromMessages(messages: readonly unknown[], includeRecentMessages: number): AutocompleteHistoryMessage[];
export declare function buildAutocompletePrompt(input: {
    cwd: string;
    draft: string;
    history: readonly AutocompleteHistoryMessage[];
    maxPromptTokens?: number;
}): string;
export declare function autocompletePromptTokenEstimate(prompt: string, systemPrompt?: string): number;
export declare function cleanupCompletion(output: string, draft: string, config?: Pick<AutocompleteConfig, "maxTokens">): string;
export {};