/**
 * BrowserOpenAIProvider — fetch-based OpenAI adapter for browsers.
 *
 * Pattern: Adapter (GoF). Zero peer dependencies — uses global `fetch`.
 * Role:    Outer ring. Same `LLMProvider` contract as `OpenAIProvider`
 *          but skips the `openai` SDK. For prototypes / playgrounds.
 *          Production apps should proxy through a backend.
 * Emits:   N/A.
 *
 * Also works with OpenAI-compatible endpoints (Ollama, Together, vLLM)
 * via `apiUrl`.
 *
 * ─── Limitations ────────────────────────────────────────────────────
 *
 * • Multi-modal NOT supported.
 * • CORS depends on the endpoint — OpenAI requires the user-supplied
 *   key in the Authorization header, which they'll do explicitly.
 */
import type { LLMCallHooks, LLMChunk, LLMProvider, LLMRequest, LLMResponse } from '../types.js';
export interface BrowserOpenAIProviderOptions {
    /** API key. REQUIRED. */
    readonly apiKey: string;
    /** Default model when `LLMRequest.model` is `'openai'`. */
    readonly defaultModel?: string;
    /** Default max tokens. */
    readonly defaultMaxTokens?: number;
    /** Override the API URL (Ollama, Together, vLLM, OpenAI proxies). */
    readonly apiUrl?: string;
    /** Optional `Organization` header. */
    readonly organization?: string;
    /** Auth header scheme. `'bearer'` (default) → `Authorization: Bearer <key>`;
     *  `'api-key'` → the `api-key` header (Azure OpenAI). */
    readonly authScheme?: 'bearer' | 'api-key';
    /** Treat the target as a **reasoning model** (o-series): omit `temperature` and send
     *  the `developer` role. Standard o-series ids are auto-detected; set for arbitrary
     *  Azure deployment names. */
    readonly reasoning?: boolean;
    /** @internal Custom fetch implementation for tests. */
    readonly _fetch?: typeof fetch;
}
export declare function browserOpenai(options: BrowserOpenAIProviderOptions): LLMProvider;
export declare class BrowserOpenAIProvider implements LLMProvider {
    readonly name = "browser-openai";
    private readonly inner;
    constructor(options: BrowserOpenAIProviderOptions);
    complete(req: LLMRequest, hooks?: LLMCallHooks): Promise<LLMResponse>;
    stream(req: LLMRequest, hooks?: LLMCallHooks): AsyncIterable<LLMChunk>;
}
export interface BrowserAzureOpenAIProviderOptions {
    /** Resource endpoint, e.g. `https://my-co.openai.azure.com` (or a same-origin
     *  proxy path like `/azure` to sidestep CORS in dev). REQUIRED. */
    readonly endpoint: string;
    /** API key (Azure `api-key`). REQUIRED. */
    readonly apiKey: string;
    /** Azure API version, e.g. `2024-12-01-preview`. REQUIRED. */
    readonly apiVersion: string;
    /** The DEPLOYMENT name (Azure's "model"), e.g. `gpt-4o-128k`. REQUIRED. */
    readonly deployment: string;
    /** Default max tokens. */
    readonly defaultMaxTokens?: number;
    /** Set when the Azure deployment is a **reasoning model** (o1/o3/o4-mini) — omits
     *  `temperature` and sends the `developer` role. */
    readonly reasoning?: boolean;
    /** @internal Custom fetch implementation for tests. */
    readonly _fetch?: typeof fetch;
}
/**
 * Fetch-based **Azure OpenAI** provider for the browser/edge — no SDK, no Node.
 *
 * The browser can't use the Node `azureOpenai()` (it needs the `openai` SDK), so
 * use this in a browser "bring your own (company) key" flow. Builds the
 * deployment-scoped Azure URL + `api-key` header + `api-version`, and reuses all
 * of `browserOpenai()`'s body/streaming/tool logic. The request `model` is the
 * deployment; `'azure'` resolves to the configured `deployment`.
 *
 * **CORS:** an `*.openai.azure.com` resource may not allow direct browser calls;
 * if blocked, point `endpoint` at a same-origin proxy (e.g. a Vite `/azure`
 * proxy) or a backend. Same trade-off as `browserOpenai`.
 *
 * @example
 *   import { browserAzureOpenai } from 'agentfootprint/llm-providers';
 *   const provider = browserAzureOpenai({
 *     endpoint: 'https://my-co.openai.azure.com',
 *     apiKey: userKey, apiVersion: '2024-12-01-preview', deployment: 'gpt-4o-128k',
 *   });
 *   // Agent.create({ provider, model: 'azure' })
 */
export declare function browserAzureOpenai(options: BrowserAzureOpenAIProviderOptions): LLMProvider;
export declare class BrowserAzureOpenAIProvider implements LLMProvider {
    readonly name = "browser-azure-openai";
    private readonly inner;
    constructor(options: BrowserAzureOpenAIProviderOptions);
    complete(req: LLMRequest, hooks?: LLMCallHooks): Promise<LLMResponse>;
    stream(req: LLMRequest, hooks?: LLMCallHooks): AsyncIterable<LLMChunk>;
}
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