/**
 * conversation-viewer.ts — Live and historical conversation overlay.
 *
 * The viewer deliberately keeps rendering state separate from the transcript:
 * blocks are formatted data, while Markdown/ANSI lines are a bounded cache.
 */
import type { AgentSession, ExtensionAPI, ExtensionContext } from "@earendil-works/pi-coding-agent";
import { type Component, type TUI, type TuiMouseEvent } from "@earendil-works/pi-tui";
import type { AgentRecord } from "../types.js";
import type { Theme } from "./agent-widget.js";
import { type AgentActivity } from "./agent-widget.js";
import { type ViewerKeybindings } from "./viewer-keys.js";
export declare const VIEWPORT_HEIGHT_PCT = 70;
/** The live fields needed by the viewer; historical viewers use a static source. */
export type ConversationSource = Pick<AgentSession, "messages" | "subscribe">;
export declare function createStaticConversationSource(messages: AgentSession["messages"]): ConversationSource;
/** Optional operations are appended so all existing constructor call sites stay valid. */
export interface ConversationViewerOperations {
    pi: ExtensionAPI;
    ctx: ExtensionContext;
    readOnly?: boolean;
}
export declare class ConversationViewer implements Component {
    private tui;
    private session;
    private record;
    private activity;
    private theme;
    private done;
    /** Abort the agent shown here. Omitted means read-only history. */
    private onStop?;
    /** Send a steering message to the agent. */
    private onSteer?;
    /** Optional clipboard/nvim operation context, appended for compatibility. */
    private operations?;
    private blocks;
    private showTools;
    private selectedMessageIdx;
    private hasFocusedBlock;
    private cachedWidth;
    private cachedLines;
    private cachedMessageStarts;
    private cachedMessageBlocks;
    private cacheVersion;
    private cachedVersion;
    private sessionRefreshQueued;
    private selectedBlockId;
    private scrollOffset;
    private autoScroll;
    private unsubscribe;
    private lastInnerW;
    private closed;
    private stopArmed;
    private hoveredPreview;
    private hoveredClose;
    private keys;
    private composer;
    private searchMode;
    private searchQuery;
    private searchMatches;
    private currentMatchIdx;
    /** Follow-up drafts, newest first, matching pi editor history semantics. */
    private steerHistory;
    private steerHistoryIndex;
    private steerHistoryDraft;
    private timeline;
    constructor(tui: TUI, session: ConversationSource, record: AgentRecord, activity: AgentActivity | undefined, theme: Theme, done: (result: undefined) => void, 
    /** Abort the agent shown here. Omitted means read-only history. */
    onStop?: (() => void) | undefined, 
    /** User keybindings from ctx.ui.custom(). */
    keybindings?: ViewerKeybindings, 
    /** Send a steering message to the agent. */
    onSteer?: ((message: string) => void) | undefined, 
    /** Optional clipboard/nvim operation context, appended for compatibility. */
    operations?: ConversationViewerOperations | undefined);
    handleInput(data: string): void;
    handleMouse(event: TuiMouseEvent): {
        handled?: boolean;
        capture?: boolean;
        render?: boolean;
    } | undefined;
    private headerActionGeometry;
    private isPreviewButtonHit;
    private isCloseButtonHit;
    render(width: number): string[];
    invalidate(): void;
    private scheduleSessionRefresh;
    private handleTimelineChange;
    dispose(): void;
    private viewportHeight;
    private chromeLines;
    private invocationLine;
    private buildContentLines;
    private currentMessageIndex;
    /** Keep the selected transcript block and the tool focus as one target. */
    private setFocusFromMessageIndex;
    private currentBlockGlobalIndex;
    private activeHeaderLine;
    private currentBlock;
    private messageIndexForOffset;
    private jumpToMessage;
    private moveToolFocus;
    private focusNearbyTool;
    private scrollTargetIntoView;
    private focusedToolBlock;
    private openFocusedToolPreview;
    private scrollBy;
    private scrollToTop;
    private scrollToBottom;
    private enterSearch;
    private handleSearchInput;
    private recomputeMatches;
    private gotoMatch;
    private scrollToMatch;
    private copyCurrentMessage;
    private viewCurrentInNvim;
    private editCurrentInNvim;
    private isReadOnly;
    private isLive;
    private isStoppable;
    private canSteer;
    private openComposer;
    /** Recall the newest prior steer, preserving the draft for future editing. */
    private recallSteerDraft;
}
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