import { ChatAgentService } from './chat-agent-service';
import { ChatAgentLocation } from './chat-agents';
import { ChatContext, ChatRequest } from './chat-model';
import { ParsedChatRequestVariablePart, ParsedChatRequest, ParsedChatRequestPart } from './parsed-chat-request';
import { AIVariable, AIVariableService, PromptService, ToolInvocationRegistry, ToolRequest } from '@theia/ai-core';
import { ILogger } from '@theia/core';
export declare const ChatRequestParser: unique symbol;
export interface ChatRequestParser {
    parseChatRequest(request: ChatRequest, location: ChatAgentLocation, context: ChatContext): Promise<ParsedChatRequest>;
}
export declare class ChatRequestParserImpl implements ChatRequestParser {
    private readonly agentService;
    private readonly variableService;
    private readonly toolInvocationRegistry;
    protected readonly logger: ILogger;
    protected readonly promptService: PromptService;
    constructor(agentService: ChatAgentService, variableService: AIVariableService, toolInvocationRegistry: ToolInvocationRegistry, logger: ILogger);
    parseChatRequest(request: ChatRequest, location: ChatAgentLocation, context: ChatContext): Promise<ParsedChatRequest>;
    protected parseParts(request: ChatRequest, location: ChatAgentLocation): {
        parts: ParsedChatRequestPart[];
        toolRequests: Map<string, ToolRequest>;
        deferredToolIds: Set<string>;
        variables: Map<string, AIVariable>;
    };
    /**
     * Parse text for tool requests and add them to the given map
     */
    private parseFunctionsFromVariableText;
    private tryToParseAgent;
    private tryToParseVariable;
    /**
     * Try to parse a command at the start of the given message.
     *
     * Commands are syntactic sugar for `#prompt:commandName|args`.
     * The prompt variable resolver will handle the actual resolution.
     */
    protected tryToParseCommand(message: string, offset: number, _parts: ReadonlyArray<ParsedChatRequestPart>): ParsedChatRequestVariablePart | undefined;
    private findNextCommandOffset;
    /**
     * Whether a `/name` token should be treated as a command. Only names that actually resolve to a
     * command or prompt fragment are accepted, which keeps unknown `/word` tokens (e.g. `/tmp`,
     * `/path/to/file`) as plain text.
     */
    protected isCommandCandidate(commandName: string): boolean;
    private tryToParseFunction;
}
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