import type { ModelConstant } from '@qvac/sdk';
declare const STATES: {
    readonly IDLE: "idle";
    readonly LOADING: "loading";
    readonly READY: "ready";
    readonly UNLOADING: "unloading";
    readonly ERROR: "error";
};
export type ModelState = (typeof STATES)[keyof typeof STATES];
export interface ModelEntry {
    id: string;
    modelSrc: string | ModelConstant;
    sdkType: string;
    endpointCategory: string;
    config: Record<string, unknown>;
    state: ModelState;
    createdAt: number;
    error: string | null;
    sdkModelId: string | null;
}
export interface ServeConfig {
    models: Map<string, ResolvedModelEntry>;
    defaults: Map<string, string>;
    /**
     * Externally reachable origin for this server (e.g. "https://api.example.com").
     * Required to mint absolute URLs in image-generation responses when
     * `response_format=url`. Trailing slash is stripped on parse.
     */
    publicBaseUrl: string | null;
    cors: {
        origins: string[];
    };
    openai: OpenAIServeOptions;
}
export interface OpenAIServeOptions {
    audio: {
        speech: {
            defaultVoice: string | null;
            /**
             * Maps an OpenAI `voice` string to a `serve.models` alias. Each alias can
             * carry its own TTS `config` (e.g. Chatterbox `referenceAudioSrc`, Supertonic
             * `ttsVoiceStyleSrc`). When set, this is tried before `${model}-${voice}` and
             * before the bare `model` alias. Keys are normalized to lowercase when parsed.
             */
            voices: Record<string, string> | null;
            /**
             * Maximum allowed character length of `input`. Requests above this are
             * rejected with `400 input_too_long` before any synthesis runs (the
             * route otherwise buffers the full WAV in memory — DoS vector).
             * `null` disables the cap. Defaults to OpenAI's documented 4096.
             */
            maxInputChars: number | null;
        };
    };
}
export interface ResolvedModelEntry {
    alias: string;
    modelSrc: string | ModelConstant;
    sdkType: string;
    endpointCategory: string;
    isDefault: boolean;
    preload: boolean;
    config: Record<string, unknown>;
}
export interface ModelRegistry {
    STATES: typeof STATES;
    getEntry: (modelId: string) => ModelEntry | null;
    getAll: () => ModelEntry[];
    getReady: () => ModelEntry[];
    register: (alias: string, opts: {
        modelSrc: string | ModelConstant;
        sdkType: string;
        endpointCategory: string;
        config: Record<string, unknown>;
    }) => ModelEntry;
    setLoading: (modelId: string) => void;
    setReady: (modelId: string, sdkModelId?: string) => void;
    setError: (modelId: string, error: unknown) => void;
    remove: (modelId: string) => boolean;
    isAllowed: (modelId: string, serveConfig: ServeConfig) => boolean;
}
export declare function createModelRegistry(): ModelRegistry;
export {};
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