import { GlobalBrain } from './global-brain.js';
import { BrainReplay } from './brain-replay.js';
export type LayoutKind = 'force-directed' | 'sphere' | 'helix' | 'galaxy';
export interface SceneNode {
    id: string;
    label: string;
    group: string;
    position: [number, number, number];
    size: number;
    color: string;
    importance: number;
    metadata: Record<string, unknown>;
}
export interface SceneEdge {
    source: string;
    target: string;
    weight: number;
    kind: 'similarity' | 'causal' | 'temporal' | 'agent-handoff';
}
export interface CameraSpec {
    position: [number, number, number];
    lookAt: [number, number, number];
    fov: number;
    near: number;
    far: number;
}
export interface LightSpec {
    type: 'ambient' | 'directional' | 'point';
    color: string;
    intensity: number;
    position?: [number, number, number];
}
export interface ThemeSpec {
    background: string;
    backgroundGradient: [string, string];
    primary: string;
    secondary: string;
    accent: string;
    edgeColor: string;
}
export interface SceneData {
    version: '1.0';
    generatedAt: string;
    layout: LayoutKind;
    nodes: SceneNode[];
    edges: SceneEdge[];
    camera: CameraSpec;
    lights: LightSpec[];
    theme: ThemeSpec;
    meta: {
        project: string;
        nodeCount: number;
        edgeCount: number;
        empty: boolean;
    };
}
export declare class Brain3d {
    private brain;
    private replay;
    constructor(brain?: GlobalBrain, replay?: BrainReplay);
    /** Build a scene-data object ready for any Three.js renderer. */
    exportScene(project: string, opts?: {
        layout?: LayoutKind;
        nodeLimit?: number;
    }): Promise<SceneData>;
    /** Self-contained HTML viewer — open in any browser and the brain rotates. */
    htmlViewer(scene: SceneData): string;
    /** Minimal glTF JSON. Embeds node positions inline; no binary buffers. */
    glTfExport(scene: SceneData): string;
    private emptyScene;
    private safeInit;
    private resolveProjectId;
    private buildNodes;
    private buildEdges;
    private applyLayout;
}
export declare function getBrain3d(): Brain3d;
export declare function resetBrain3dForTests(): void;
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