/**
 * Gemini-Compatible Proxy Routes
 *
 * Exposes the Google `generateContent` / `streamGenerateContent` endpoints the
 * Gemini CLI calls when pointed at this proxy via `GOOGLE_GEMINI_BASE_URL`.
 * ALL requests are routed through ctx.neurolink.stream() via the shared proxy
 * translation engine — no direct HTTP calls to any upstream provider.
 *
 * This is a thin wrapper that parses the Google wire format and delegates to
 * the same translation engine openaiProxyRoutes.ts and claudeProxyRoutes.ts
 * use, mirroring that file's validate → log → delegate shape.
 *
 * An optional ModelRouter can remap incoming model names to different
 * provider/model pairs, exactly as it does for the OpenAI-compatible door.
 */
import type { ModelRouterInterface, ParsedGeminiRequest, ProxyRuntimeConfigProvider, RouteGroup } from "../../types/index.js";
/**
 * Google bakes the action into the final path segment as `<model>:<action>`
 * (`models/gemini-2.5-pro:generateContent`). Hono's router has no way to
 * express a literal `:` after a named param — verified directly against the
 * `hono` version this repo pins: registering `:model\:generateContent`
 * doesn't escape the colon, it becomes *part of the param name*, and the
 * resulting param still greedily swallows the whole trailing segment
 * (`streamGenerateContent` included) because nothing after the leading `:`
 * stops the capture except the next `/`. A `:model{regex}` constraint
 * followed by literal text fails outright — the route never matches (404 on
 * every request). A bare `:model` segment is therefore the only shape that
 * actually matches; it captures `<model>:<action>` whole, and this function
 * splits it back apart in the handler instead of in the route table.
 */
/**
 * Pull "<model>:<action>" out of the request path.
 *
 * Read from `ctx.path`, not from a route param. Hono does capture the whole
 * `gemini-2.5-pro:generateContent` segment — the colon is not a route
 * separator, so one route covers both actions — but the proxy's mount loop
 * builds its ServerContext from `path`, `headers`, `query`, `body`, `method`
 * and `requestId` only. The captured param never reaches the handler, and
 * reading `ctx.params` here would be `undefined` on every request.
 */
declare function splitModelAction(requestPath: string): {
    modelId: string;
    action: string | undefined;
};
/**
 * buildProxyTranslationPlan's classifier expects ParsedClaudeRequest, whose
 * `maxTokens` is required. Gemini's is optional (Google omits
 * `generationConfig.maxOutputTokens` on plenty of real requests), so the gap
 * is bridged the same way the OpenAI door bridges it: fill in a safe default
 * and let the (structurally near-identical) rest pass through untouched.
 */
declare function adaptGeminiForTranslationPlan(parsed: ParsedGeminiRequest): {
    model: string;
    maxTokens: number;
    temperature?: number;
    topP?: number;
    systemPrompt?: string;
    stream: boolean;
    prompt: string;
    images: string[];
    conversationMessages: Array<{
        role: string;
        content: string;
    }>;
    tools: Record<string, {
        description?: string;
        inputSchema: unknown;
        execute?: (...args: unknown[]) => unknown;
    }>;
    stopSequences?: string[];
};
/**
 * Create Gemini-compatible proxy routes.
 *
 * Every request flows through ctx.neurolink.stream() — no direct HTTP calls
 * to any upstream provider.
 *
 * @param modelRouter   - Optional model router for remapping model names.
 * @param basePath      - Base path prefix (default: "").
 * @param loopbackPort  - Unused by this door; kept for parameter-shape parity
 *                        with createOpenAIProxyRoutes (see DEFAULT_LOOPBACK_PORT).
 * @returns RouteGroup with Gemini-compatible endpoints.
 */
export declare function createGeminiProxyRoutes(modelRouter?: ModelRouterInterface, basePath?: string, _loopbackPort?: number, runtimeConfigProvider?: ProxyRuntimeConfigProvider): RouteGroup;
export declare const __testHooks: {
    splitModelAction: typeof splitModelAction;
    adaptGeminiForTranslationPlan: typeof adaptGeminiForTranslationPlan;
};
export {};