import { ChatAgentService, ChatService, ChatSessionMetadata } from '@theia/ai-chat';
import { Event } from '@theia/core';
import { HoverService } from '@theia/core/lib/browser';
import { MarkdownRenderer } from '@theia/core/lib/browser/markdown-rendering/markdown-renderer';
import * as React from '@theia/core/shared/react';
import { ChatSessionItemAction } from './chat-session-item-action-contribution';
/** Minimal view of the unread state that React components can subscribe to. */
export interface UnreadStateProvider {
    isUnread(sessionId: string): boolean;
    readonly onUnreadChanged: Event<string>;
}
export interface ChatSessionItemProps {
    session: ChatSessionMetadata;
    /** Whether the session is restored from disk (true) or actively loaded in the chat service (false). */
    isRestored: boolean;
    chatService: ChatService;
    chatAgentService: ChatAgentService;
    hoverService: HoverService;
    markdownRenderer: MarkdownRenderer;
    unreadState: UnreadStateProvider;
    onClick: () => void;
    /** Actions shown in the item's action bar on hover/focus, already filtered and sorted. */
    actions?: ChatSessionItemAction[];
    /** Invoked when an action is triggered, with the action and this item's session. */
    onAction?: (action: ChatSessionItemAction, session: ChatSessionMetadata) => void;
    /**
     * Whether this session has child sessions. The children themselves are rendered separately by
     * the parent list; this only drives the expand/collapse toggle.
     */
    hasChildSessions?: boolean;
    /** Whether this item is a child of a parent session. */
    isChildSession?: boolean;
    /** Depth level for indentation. */
    depth?: number;
    /** Whether the parent session is expanded. */
    isExpanded?: boolean;
    /** Whether any descendant session needs user action; shows a warning badge on this row. */
    descendantNeedsAttention?: boolean;
    /** Called when the user toggles the expand/collapse state. */
    onToggleExpand?: () => void;
}
export interface ChatSessionItemComponentProps extends ChatSessionItemProps {
    formatTimeAgo: (date: number) => string;
}
export declare function ChatSessionItem(props: ChatSessionItemComponentProps): React.ReactElement;
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