/**
 * Agent widget renderer.
 * Spec: §5.12 — Widget
 *
 * Read-only view of `listAgentStatuses` + `readCostSummary`. Pure rendering
 * functions are exported separately from the component factory so they can
 * be unit-tested against fixture data without touching the filesystem.
 */
import { listAgentStatuses, readCostSummary } from "./engine/status.js";
import type { AgentStatusFile } from "@pi-orca/core";
export interface AgentWidgetItem {
    agentId: string;
    templateName: string;
    status: AgentStatusFile["status"];
    exitReason?: AgentStatusFile["exitReason"];
    model: string;
    isolation: AgentStatusFile["isolation"];
    inputTokens: number;
    outputTokens: number;
    totalCost: number;
    labels: Record<string, any>;
    cleanupBlockedReason?: string;
}
export interface AgentWidgetTotals {
    inputTokens: number;
    outputTokens: number;
    totalCost: number;
}
/** Render a token count compactly: 25140 → "25.1k". */
export declare function formatTokenCount(n: number): string;
/** Render a USD cost: 0.123 → "$0.123", 1.5 → "$1.50". */
export declare function formatCost(n: number): string;
/**
 * Format a single agent line.
 *
 * Layout (per spec §5.12, simplified for terminal width):
 *   "  ◉ <id>  <template>  ↑<in> ↓<out>  <$cost>  [labels]"
 *
 * Orphaned and other non-running statuses get a hint line:
 *   "  ⚠ <id>  <template>  ORPHANED — /agents recover to restore"
 */
export declare function formatAgentLine(item: AgentWidgetItem, width: number): string;
/**
 * Compute totals across agents. If `summary` is provided (read from
 * `cost-summary.yaml`), prefer it — it includes terminated agents whose
 * status files may have been pruned. Otherwise sum from items.
 */
export declare function computeTotals(items: AgentWidgetItem[], summary?: AgentWidgetTotals | null): AgentWidgetTotals;
/**
 * Render the full widget body.
 */
export declare function renderAgentLines(items: AgentWidgetItem[], width: number, summary?: AgentWidgetTotals | null): string[];
export declare function statusToWidgetItem(agentId: string, s: AgentStatusFile): AgentWidgetItem;
type WidgetComponent = {
    render(width: number): string[];
    invalidate(): void;
};
type WidgetFactory = (_tui: any, _theme: any) => WidgetComponent;
/**
 * Create a widget factory bound to a parent session path.
 *
 * @param parentSessionPath - Session path whose `.orca/agents/` is enumerated
 * @param fetchOverrides - Test injection for the two reads
 * @returns Factory compatible with `ctx.ui.setWidget()`
 */
export declare function createAgentWidgetFactory(parentSessionPath: string, fetchOverrides?: {
    list?: typeof listAgentStatuses;
    summary?: typeof readCostSummary;
}): WidgetFactory;
export {};
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