/**
 * Get number of vertices in mesh
 * @param attributes
 */
export function getMeshSize(attributes) {
    let size = 0;
    for (const attributeName in attributes) {
        const attribute = attributes[attributeName];
        if (ArrayBuffer.isView(attribute)) {
            // @ts-ignore DataView doesn't have BYTES_PER_ELEMENT
            size += attribute.byteLength * attribute.BYTES_PER_ELEMENT;
        }
    }
    return size;
}
/**
 * Get the (axis aligned) bounding box of a mesh
 * @param attributes
 * @returns array of two vectors representing the axis aligned bounding box
 */
// eslint-disable-next-line complexity
export function getMeshBoundingBox(attributes) {
    let minX = Infinity;
    let minY = Infinity;
    let minZ = Infinity;
    let maxX = -Infinity;
    let maxY = -Infinity;
    let maxZ = -Infinity;
    const positions = attributes.POSITION ? attributes.POSITION.value : [];
    const len = positions && positions.length;
    for (let i = 0; i < len; i += 3) {
        const x = positions[i];
        const y = positions[i + 1];
        const z = positions[i + 2];
        minX = x < minX ? x : minX;
        minY = y < minY ? y : minY;
        minZ = z < minZ ? z : minZ;
        maxX = x > maxX ? x : maxX;
        maxY = y > maxY ? y : maxY;
        maxZ = z > maxZ ? z : maxZ;
    }
    return [
        [minX, minY, minZ],
        [maxX, maxY, maxZ]
    ];
}