/**
 * Trellis Client — TypeScript SDK
 *
 * Isomorphic client that works in two modes:
 *
 *   Local  — embeds TrellisKernel directly (Node/Bun only, zero network)
 *   Remote — calls the Trellis Server HTTP API (works anywhere, including browsers)
 *
 * Usage:
 *   // Local (embeds SQLite kernel)
 *   const db = new TrellisClient({ path: './.trellis-db' });
 *
 *   // Remote (hits HTTP server or Sprites deployment)
 *   const db = new TrellisClient({ url: 'https://myapp.sprites.app', apiKey: '...' });
 *
 *   // Auto (reads .trellis-db.json from cwd)
 *   const db = await TrellisClient.fromConfig();
 *
 * @module trellis/client
 */
import type { SchemaDefinition } from '../core/ontology/types.js';
import { EntityConflictError } from '../core/ontology/sync-policy.js';
import type { ResolveSpec } from '../schema/resolve.js';
export interface EntityData {
    id: string;
    type: string;
    [key: string]: unknown;
}
/** Options for {@link TrellisDb.create} (ADR 0018). */
export interface CreateEntityOptions {
    /** Stable id (e.g. entity:player-1). Omit → `${type.toLowerCase()}:${uuid}`. */
    id?: string;
}
export { EntityConflictError };
export interface ListResult<T = EntityData> {
    data: T[];
    total: number;
    limit: number;
    offset: number;
}
export interface QueryResult {
    bindings: Record<string, unknown>[];
    executionTime: number;
}
export interface UploadResult {
    hash: string;
    size: number;
    contentType: string;
}
export interface AuthResult {
    token: string;
    userId: string;
}
export interface Subscription<T = EntityData> {
    unsubscribe(): void;
}
export type SubscriptionCallback<T = EntityData> = (result: T[], diff: {
    added: T[];
    updated: T[];
    removed: T[];
}, meta?: {
    resolved?: boolean;
}) => void;
/** Options for {@link TrellisDb.subscribe} — server-side relation expansion (TRL-6). */
export interface SubscribeOptions {
    /** Entity type name (e.g. `NavSection`) for server `resolve`. */
    entityType?: string;
    resolve?: ResolveSpec;
}
export interface TrellisDbLocalOptions {
    /** Path to the SQLite database directory. */
    path: string;
    /** Agent ID for attributing ops. Default: 'sdk'. */
    agentId?: string;
    /** Tenant ID (multi-tenant mode). */
    tenantId?: string;
}
export interface TrellisDbRemoteOptions {
    /** Base URL of the Trellis DB server. */
    url: string;
    /** API key or JWT for authentication. */
    apiKey?: string;
    /** Tenant ID (passed as query param if not in JWT). */
    tenantId?: string;
}
export type TrellisDbOptions = TrellisDbLocalOptions | TrellisDbRemoteOptions;
export declare class TrellisDb {
    private opts;
    private _pool;
    private _poolPromise;
    private _ws;
    /** In-flight connect — concurrent subscribe() shares one socket open. */
    private _wsPromise;
    private _subCallbacks;
    private _subOpts;
    constructor(opts: TrellisDbOptions);
    /**
     * Create a TrellisDb instance from `.trellis-db.json` in the given directory.
     */
    static fromConfig(dir?: string): Promise<TrellisDb>;
    /**
     * Create a new entity.
     * Returns the entity ID (generated or caller-supplied via options.id).
     */
    create(type: string, attributes?: Record<string, unknown>, links?: Array<{
        attribute: string;
        targetEntityId: string;
    }>, options?: CreateEntityOptions): Promise<string>;
    /**
     * Read an entity by ID.
     * Returns null if not found.
     */
    read<T extends EntityData = EntityData>(id: string): Promise<T | null>;
    /**
     * Update an entity's attributes (partial update).
     */
    update(id: string, attributes: Record<string, unknown>): Promise<void>;
    /**
     * Delete an entity by ID.
     */
    delete(id: string): Promise<void>;
    /**
     * List entities of a given type.
     */
    list<T extends EntityData = EntityData>(type?: string, opts?: {
        limit?: number;
        offset?: number;
        filters?: Record<string, unknown>;
    }): Promise<ListResult<T>>;
    /**
     * Run an EQL-S query string.
     */
    query(eql: string): Promise<QueryResult>;
    /**
     * Register a user/system-tier ontology schema with the kernel.
     *
     * Accepts a {@link SchemaDefinition} or anything carrying one (e.g. a
     * `defineType` handle: `client.registerType(NavItem)`). Local mode calls
     * `kernel.createOntology` directly; remote mode POSTs to `/ontologies`.
     */
    registerType(schema: SchemaDefinition | {
        definition: SchemaDefinition;
    }): Promise<void>;
    /**
     * Upload a file to the blob store.
     * Returns a content-addressed hash.
     */
    upload(data: Uint8Array | ArrayBuffer, contentType?: string): Promise<UploadResult>;
    /**
     * Download a file by its blob hash.
     */
    getFile(hash: string): Promise<Uint8Array | null>;
    register(email: string, password: string, name?: string): Promise<AuthResult>;
    login(email: string, password: string): Promise<AuthResult>;
    /**
     * Set the active API key / JWT token for subsequent requests.
     */
    setToken(token: string): void;
    /**
     * Subscribe to a live EQL-S query.
     * Callback is fired immediately with the initial result, then on every update.
     *
     * Requires remote mode (WebSocket to server).
     */
    subscribe<T = EntityData>(eql: string, callback: SubscriptionCallback<T>, opts?: SubscribeOptions): Subscription<T>;
    /**
     * Close the WebSocket connection.
     */
    disconnect(): void;
    /**
     * Close local kernel pool connections.
     */
    close(): void;
    private _getPool;
    private _fetch;
    private _ensureWs;
}
export declare class FetchError extends Error {
    status: number;
    body?: unknown | undefined;
    constructor(status: number, message: string, body?: unknown | undefined);
}
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