// Minimal ambient types for the `occt-import-js` WASM loader. The package
// ships no .d.ts of its own. Types follow the shape documented in the project
// README and the `three_viewer.html` example.

declare module "occt-import-js" {
  export interface OcctArrayAttribute {
    array: number[] | Float32Array | Uint32Array;
  }

  export interface OcctBrepFace {
    first: number;
    last: number;
    color?: [number, number, number] | null;
  }

  export interface OcctMesh {
    name?: string;
    color?: [number, number, number] | null;
    brep_faces?: OcctBrepFace[];
    attributes: {
      position: OcctArrayAttribute;
      normal?: OcctArrayAttribute;
    };
    index: OcctArrayAttribute;
  }

  export interface OcctResult {
    success: boolean;
    meshes: OcctMesh[];
    root?: unknown;
  }

  export interface OcctModule {
    ReadStepFile: (buffer: Uint8Array, params: unknown) => OcctResult;
    ReadBrepFile?: (buffer: Uint8Array, params: unknown) => OcctResult;
    ReadIgesFile?: (buffer: Uint8Array, params: unknown) => OcctResult;
  }

  export interface OcctInitOptions {
    locateFile?: (filename: string) => string;
  }

  const factory: (options?: OcctInitOptions) => Promise<OcctModule>;
  export default factory;
}