///////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2002-2026, Open Design Alliance (the "Alliance").
// All rights reserved.
//
// This software and its documentation and related materials are owned by
// the Alliance. The software may only be incorporated into application
// programs owned by members of the Alliance, subject to a signed
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable
// trade secrets of the Alliance and its suppliers. The software is also
// protected by copyright law and international treaty provisions. Application
// programs incorporating this software must include the following statement
// with their copyright notices:
//
//   This application incorporates Open Design Alliance software pursuant to a
//   license agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2026 by Open Design Alliance.
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

/**
 * Perfomance metrics.
 */
export interface IPerformanceInfo {
  /**
   * Frames Per Second: the measure of rendering performance and smoothness.
   */
  fps: number;

  /**
   * The time it takes to render a single frame.
   */
  frameTime: number;

  /**
   * The time from loading the file to the first frame being rendered on screen.
   */
  timeToFirstRender: number;

  /**
   * The total file loading time.
   */
  loadTime: number;
}

/**
 * Render related metrics.
 */
export interface IRenderInfo {
  /**
   * The current width and height of the rendering canvas.
   */
  viewport: { width: number; height: number };

  /**
   * The current anti-aliasing technique being used.
   */
  antialiasing: string;

  /**
   * The number of draw calls of the current frame.
   */
  drawCalls: number;

  /**
   * The number of rendered triangle primitives of the current frame.
   */
  triangles: number;

  /**
   * The number of rendered point primitives of the current frame.
   */
  points: number;

  /**
   * The number of rendered line primitives of the current frame.
   */
  lines: number;
}

/**
 * Scene related metrics.
 */
export interface ISceneInfo {
  /**
   * The total number of objects in the scene graph.
   */
  objects: number;

  /**
   * The total number of triangles in the entire scene.
   */
  triangles: number;

  /**
   * The total number of point primitives in the scene.
   */
  points: number;

  /**
   * The total number of lines in the scene.
   */
  lines: number;

  /**
   * The total number of edges in the scene.
   */
  edges: number;
}

/**
 * Memory related metrics.
 */
export interface IMemoryInfo {
  /**
   * The number of unique geometries and the memory they consume.
   */
  geometries: number;
  geometryBytes: number;

  /**
   * The optimized geometry memory size.
   */
  optimizedGeometryBytes: number;

  /**
   * The number of textures and the memory they consume.
   */
  textures: number;
  textureBytes: number;

  /**
   * The number of unique materials in use.
   */
  materials: number;

  /**
   * An estimation of the GPU memory being used by the WebGL context.
   */
  totalEstimatedGpuBytes: number;

  // The currently active segment of JS heap, in bytes. This feature
  // is not standardized. We do not recommend using non-standard features
  // in production, as they have limited browser support, and may change
  // or be removed.

  usedJSHeapSize: number;
}

/**
 * System information.
 */
export interface ISystemInfo {
  /**
   * Renderer string of the graphics driver.
   */
  webglRenderer: string;

  /**
   * Vendor string of the graphics driver.
   */
  webglVendor: string;
}

/**
 * The statistical information about the scene, GPU memory and the rendering process.
 */
export interface IInfo {
  /**
   * Perfomance metrics.
   */
  performance: IPerformanceInfo;

  /**
   * Render related metrics.
   */
  render: IRenderInfo;

  /**
   * Scene related metrics.
   */
  scene: ISceneInfo;

  /**
   * Scene related metrics after optimization.
   */
  optimizedScene: ISceneInfo;

  /**
   * Memory related metrics.
   */
  memory: IMemoryInfo;

  /**
   * System information.
   */
  system: ISystemInfo;
}