import type { Component } from "@caupulican/pi-tui";
import type { LaneRecord } from "../../../core/autonomy/lane-tracker.ts";
import { type GoalState } from "../../../core/goals/goal-state.ts";
import type { TaskStepsState } from "../../../core/tasks/task-state.ts";
import type { Theme } from "../theme/theme.ts";
export type ActivityLaneKind = "runtime" | "tool" | "task" | "worker" | "goal" | "queue" | "notice";
export type ActivityLaneStatus = "active" | "waiting" | "success" | "warning" | "failure" | "neutral";
export interface ActivityLaneItem {
    id: string;
    kind: ActivityLaneKind;
    label: string;
    status: ActivityLaneStatus;
    /** Short aggregation key (e.g. "bash", "python", "agent") for the concurrency slot. */
    tag?: string;
}
export interface ActivityLaneCanonicalSnapshot {
    goalState?: GoalState;
    taskState?: TaskStepsState;
    laneRecords: readonly LaneRecord[];
}
export interface ActivityLaneProjection {
    active: ActivityLaneItem[];
    terminal: ActivityLaneItem[];
}
export declare const BACKGROUND_TOOL_ACTIVITY_ID_PREFIX = "background-tool:";
export declare function backgroundToolActivityId(taskId: string): string;
export declare function isBackgroundToolActivityItem(item: Pick<ActivityLaneItem, "id" | "kind">): boolean;
export declare function projectActivityLane(snapshot: ActivityLaneCanonicalSnapshot): ActivityLaneProjection;
export declare function renderActivityLaneLine(theme: Theme, items: readonly ActivityLaneItem[], width: number): string[];
export declare class ActivityLaneComponent implements Component {
    private readonly theme;
    private readonly requestRender;
    private readonly terminalHoldMs;
    private sessionKey;
    private readonly canonical;
    private readonly live;
    private readonly transient;
    private readonly transientTimers;
    private readonly seenTerminalKeys;
    private transientSequence;
    constructor(theme: Theme, requestRender: () => void, terminalHoldMs?: number);
    private rememberTerminal;
    private addTransient;
    private applyProjection;
    replaceCanonical(sessionKey: string, snapshot: ActivityLaneCanonicalSnapshot): void;
    updateCanonical(sessionKey: string, snapshot: ActivityLaneCanonicalSnapshot): void;
    start(item: Omit<ActivityLaneItem, "status">): void;
    wait(item: Omit<ActivityLaneItem, "status">): void;
    update(id: string, label: string): void;
    remove(id: string): void;
    removeByPrefix(prefix: string): void;
    finish(id: string, status: "success" | "failure" | "neutral", fallback?: Omit<ActivityLaneItem, "status">): void;
    announce(label: string, status?: "success" | "warning" | "failure" | "neutral"): void;
    private clearTransient;
    getItems(): ActivityLaneItem[];
    render(width: number): string[];
    invalidate(): void;
    dispose(): void;
}
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