import { ChatWelcomeMessageProvider } from '@theia/ai-chat-ui/lib/browser/chat-tree-view';
import { ChatAgentService, ChatService, ChatSessionMetadata } from '@theia/ai-chat';
import { ChatSessionItemAction, ChatSessionItemActionContribution } from './chat-session-item-action-contribution';
import { ChatSessionListService } from './chat-session-list-service';
import { SectionedSessions, SessionRow } from './chat-session-list-components';
import { FrontendLanguageModelRegistry } from '@theia/ai-core/lib/common';
import { CommandRegistry, ContributionProvider, Emitter, Event, PreferenceService } from '@theia/core';
import { ApplicationShell, HoverService } from '@theia/core/lib/browser';
import { MarkdownRenderer, MarkdownRendererFactory } from '@theia/core/lib/browser/markdown-rendering/markdown-renderer';
import * as React from '@theia/core/shared/react';
export declare class ChatSessionsWelcomeMessageProvider implements ChatWelcomeMessageProvider {
    readonly priority = 50;
    protected readonly chatService: ChatService;
    protected readonly commandRegistry: CommandRegistry;
    protected readonly preferenceService: PreferenceService;
    protected readonly chatAgentService: ChatAgentService;
    protected readonly hoverService: HoverService;
    protected readonly markdownRendererFactory: MarkdownRendererFactory;
    protected readonly chatSessionItemActionContributions: ContributionProvider<ChatSessionItemActionContribution>;
    protected readonly languageModelRegistry: FrontendLanguageModelRegistry;
    protected readonly shell: ApplicationShell;
    protected readonly sessionListService: ChatSessionListService;
    protected _inputEnabled: boolean;
    protected _sessionsWidgetAttached: boolean;
    protected _markdownRenderer: MarkdownRenderer | undefined;
    protected get markdownRenderer(): MarkdownRenderer;
    protected readonly onStateChangedEmitter: Emitter<void>;
    readonly onStateChanged: Event<void>;
    protected init(): void;
    protected isSessionsWidgetAttached(): boolean;
    protected updateInputEnabled(): Promise<void>;
    renderWelcomeMessage(): React.ReactNode;
    protected renderSessionsSection(sections: SectionedSessions): React.ReactNode;
    protected getSessionActions(session: ChatSessionMetadata): ChatSessionItemAction[];
    protected renderSessionRow: (row: SessionRow) => React.ReactNode;
    protected renderSessionRowAtDepth(row: SessionRow, depth: number): React.ReactNode;
    protected handleSessionItemAction: (action: ChatSessionItemAction, session: ChatSessionMetadata) => void;
    protected handleSessionItemClick: (sessionId: string) => Promise<void>;
    protected handleBrowseAllChats: () => void;
}
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