/**
 * FoundryProvider — Microsoft Foundry (Azure AI Foundry) projects over the
 * api-version-free v1 OpenAI-compatible inference route.
 *
 * Pattern: Adapter (GoF) + Ports-and-Adapters (Cockburn 2005), composed —
 *          a thin vendor file over `openai()`'s machinery, the exact
 *          `azureOpenai()` shape.
 * Role:    Outer ring — owns EVERY Foundry spelling (the project-endpoint
 *          shape, the env-var names, the token audience, the `/openai/v1`
 *          derivation) so the `LLMProvider` port and the rest of the library
 *          never learn one. Knows nothing about agents, recorders, or
 *          compositions.
 * Emits:   N/A.
 *
 * ─── Why this exists ─────────────────────────────────────────────────
 *
 * This is the JS answer to Microsoft's
 * `FoundryChatClient(project_endpoint, model, credential)`: point at a
 * Foundry PROJECT, name a DEPLOYMENT, hand over a credential, done. The
 * doc-verified facts it is built on (learn.microsoft.com, Aug 2026):
 *
 *   • A Foundry project endpoint
 *     (`https://{account}.services.ai.azure.com/api/projects/{project}`)
 *     itself serves the v1 inference route by simple suffixing: `+ /openai/v1`.
 *     No `api-version` query, no deployment-scoped path.
 *   • The wire's `model` field carries the DEPLOYMENT name — Foundry's
 *     "model" is a deployment, exactly as on classic Azure OpenAI.
 *   • Auth is `Authorization: Bearer <Entra token or api key>` — the v1
 *     route accepts a key as a Bearer too.
 *
 * Because that route IS current OpenAI wire, this file is `openai({ baseURL,
 * legacyEndpoint: false, … })` plus Foundry's spellings — the same
 * composition `azureOpenai()` uses, with the modern dialect declared instead
 * of implied away by the custom `baseURL`.
 *
 * ─── Auth: three doors, one refused ambiguity ────────────────────────
 *
 *   • `credential` — any `@azure/identity` credential (duck-typed; the SDK
 *     is never imported for this door). Tokens are minted per request
 *     through `openai()`'s credential-callback seam.
 *   • `apiKey` — a static key, or a callback re-read per request.
 *   • NEITHER — `new DefaultAzureCredential()` via the optional
 *     `@azure/identity` peer: the platform's own blessed zero-config pattern
 *     inside a hosted Foundry container (the platform injects
 *     `FOUNDRY_PROJECT_ENDPOINT` and gives the agent a managed identity, so
 *     `foundry()` with no arguments is a complete configuration there).
 *   • BOTH `credential` and `apiKey` — refused by name. Two credentials is a
 *     config bug, not extra security.
 *
 * ─── Ceilings (stated, not worked around) ────────────────────────────
 *
 * • DEPLOYMENT NAMES HIDE THE MODEL. o-series auto-detection cannot work on
 *   an arbitrary deployment name, so `reasoning` must be declared — the same
 *   rationale, word for word, as `azureOpenai()`.
 * • INFERENCE ONLY. The token audience here is the data plane
 *   ({@link AZURE_AI_SCOPE}); the ARM control plane is a different audience
 *   and a different job — see `entraIdentity()` in the identity adapters.
 * • Everything `openai()` does not do (multi-modal, JSON-mode), this does
 *   not do either — it is the same machinery.
 */
import type { LLMProvider } from '../types.js';
import type { OpenAIProviderOptions } from './OpenAIProvider.js';
import type { TokenCredentialLike } from '../identity/azure.js';
export interface FoundryProviderOptions {
    /**
     * The Foundry PROJECT endpoint —
     * `https://{account}.services.ai.azure.com/api/projects/{project}`, copied
     * from the Foundry portal. Env fallback: `FOUNDRY_PROJECT_ENDPOINT`, which
     * hosted Foundry containers get AUTO-INJECTED by the platform — inside one,
     * this option can simply be omitted. Required (option or env); refused by
     * name otherwise.
     */
    readonly projectEndpoint?: string;
    /**
     * The DEPLOYMENT name (Foundry's "model"). Env fallbacks:
     * `AZURE_AI_MODEL_DEPLOYMENT_NAME` — the `azd` scaffolding convention, so a
     * template-provisioned app needs no extra wiring — then `MODEL_NAME`.
     * Required (option or env); refused by name otherwise.
     */
    readonly deployment?: string;
    /**
     * Keyless (Microsoft Entra ID) auth — any `@azure/identity` credential
     * (`DefaultAzureCredential`, `ManagedIdentityCredential`, …), duck-typed so
     * this file never imports that SDK. Consulted before EVERY request through
     * `openai()`'s credential-callback seam, so MSAL's cache does the pacing
     * and an expired token is a fresh token, never a 401.
     *
     * Mutually exclusive with `apiKey` — both together are refused by name.
     * NEITHER given constructs a `DefaultAzureCredential` (peer-dep
     * `@azure/identity`), the zero-config path hosted containers are built for.
     */
    readonly credential?: TokenCredentialLike;
    /**
     * Static api key — the v1 route accepts a key as a Bearer too. A FUNCTION
     * here is re-read before every request (`openai()`'s 9.29.0 contract).
     * Mutually exclusive with `credential`.
     */
    readonly apiKey?: string | (() => string | Promise<string>);
    /**
     * Token audience for the credential doors. Default {@link AZURE_AI_SCOPE}
     * (`https://ai.azure.com/.default`) — the ONE data-plane audience every
     * Foundry / Azure OpenAI inference call accepts. The ARM control plane
     * (`https://management.azure.com/.default`) is a DIFFERENT audience whose
     * tokens do NOT work here: Azure validates the audience on every call.
     * Ignored when `apiKey` is the door in use.
     */
    readonly scope?: string;
    /**
     * Set when the DEPLOYMENT is a **reasoning model** (o1/o3/o4-mini).
     * Deployment names are arbitrary and hide the underlying model, so this
     * cannot be auto-detected — declare it to omit `temperature` and send the
     * `developer` role. (Same rationale as `azureOpenai()`.)
     */
    readonly reasoning?: boolean;
    /** Default max tokens when the request doesn't set it. Optional. */
    readonly defaultMaxTokens?: number;
    /** @internal Pre-built client for testing — the same duck type `openai()`
     *  takes, spelled as such so the two seams can never drift apart. */
    readonly _client?: OpenAIProviderOptions['_client'];
}
/**
 * Project endpoint → the base URL the v1 inference route serves.
 *
 *   `https://acct.services.ai.azure.com/api/projects/proj`
 *     → `https://acct.services.ai.azure.com/api/projects/proj/openai/v1`
 *   …with trailing slashes → the same
 *   …already ending in `/openai/v1` → the same (idempotent — `azureUrl.ts`'s
 *   rule, applied to Foundry's suffix)
 *
 * Validation lives HERE, beside the derivation, so there is exactly ONE owner
 * of what a Foundry endpoint looks like: it must be `https://` and it must
 * contain `/api/projects/` — anything else is some OTHER Azure endpoint
 * (a resource root, an ARM URL) that would 404 or 401 far from the typo.
 * Endpoints are NOT secrets, so a malformed one is echoed back: seeing what
 * arrived is the fastest fix. The one carve-out is cleartext to LOOPBACK
 * (127.0.0.1 / localhost / [::1]) — that is how the wire tests drive the
 * REAL SDK against a local fake, and refusing bytes that cannot leave the
 * machine would buy no safety.
 *
 * A `?` or `#` is refused too, and for a reason particular to a SUFFIXING
 * derivation: `…/api/projects/p?x=1` + `/openai/v1` is
 * `…/api/projects/p?x=1/openai/v1`, where the route lives entirely inside the
 * query string. That URL is well-formed, constructs without complaint, and
 * 404s on every request — the exact "late and far from the typo" failure this
 * validator exists to convert into an early named one. The v1 inference route
 * takes no query parameters at all (that is the point of it: no
 * `api-version`), so there is nothing legitimate to preserve.
 */
export declare function foundryInferenceUrl(projectEndpoint: string): string;
/**
 * Build an `LLMProvider` for a **Microsoft Foundry project**.
 *
 * Inside a hosted Foundry container this is a COMPLETE configuration:
 *
 * @example
 *   import { foundry } from 'agentfootprint/providers';
 *
 *   const agent = Agent.create({
 *     provider: foundry(),        // endpoint injected, managed identity signs
 *     model: 'foundry',           // → the configured deployment
 *   }).build();
 *
 * Anywhere else, name the project and the deployment (and sign in, or pass a
 * credential):
 *
 * @example
 *   const provider = foundry({
 *     projectEndpoint: 'https://my-acct.services.ai.azure.com/api/projects/my-proj',
 *     deployment: 'gpt-4o-128k',
 *     credential: new DefaultAzureCredential(),
 *   });
 *
 * The request's `model` is the DEPLOYMENT name: the shorthand `'foundry'`
 * resolves to the configured default, and a concrete deployment id passes
 * through untouched (so one provider can target several deployments — the
 * azureOpenai precedent).
 */
export declare function foundry(options?: FoundryProviderOptions): LLMProvider;
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