import type { ExtensionAPI, ExtensionContext } from "@earendil-works/pi-coding-agent";
import type { LeetCodeClient } from "./leetcode/client.js";
import type { CapabilityManifest } from "./types.js";
export interface LeetCodeClientFactoryContext {
    cwd: string;
    hasUI: boolean;
}
export type LeetCodeClientFactory = (context: LeetCodeClientFactoryContext) => LeetCodeClient | Promise<LeetCodeClient>;
export interface LeetCodeToolsRuntimeOptions {
    createClient?: LeetCodeClientFactory;
    /** Override durable run/submit state storage for embedded SDK hosts. */
    storageDirectory?: string;
}
export type LeetCodeToolsRegistrationResult = {
    status: "registered" | "already_registered";
    names: readonly string[];
} | {
    status: "collision";
    names: readonly string[];
} | {
    status: "failed";
    names: readonly string[];
};
export type LeetCodeToolsActivationResult = {
    status: "active";
    descriptor: CapabilityManifest;
} | {
    status: "failed" | "stale";
};
export type LeetCodeToolsSessionContext = Pick<ExtensionContext, "cwd" | "hasUI" | "ui">;
export interface LeetCodeToolsRuntimeController {
    registerTools(): LeetCodeToolsRegistrationResult;
    activate(context: LeetCodeToolsSessionContext): Promise<LeetCodeToolsActivationResult>;
    deactivate(): Promise<void>;
}
/**
 * Creates a Tools runtime whose native tool registration and Gateway provider
 * activation are deliberately separate. Pi packages embedding Tools can first
 * negotiate ownership of the lc_* namespace, then activate only the provider
 * they own for the current session.
 */
export declare function createLeetCodeToolsRuntime(pi: ExtensionAPI, options?: LeetCodeToolsRuntimeOptions): LeetCodeToolsRuntimeController;
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