import CartesianG3 from './CartesianG3'
import GeometricE3 from './GeometricE3'
import isNumber from '../checks/isNumber'
import isObject from '../checks/isObject'

const scratch: GeometricE3 = { a: 0, x: 0, y: 0, z: 0, yz: 0, zx: 0, xy: 0, b: 0 }

export default function(arg: any): GeometricE3 {
    if (isObject(arg) && 'maskG3' in arg) {
        const duck = <CartesianG3>arg
        const g = <GeometricE3>arg
        if (duck.maskG3 & 0x1) {
            scratch.a = g.a
        }
        else {
            scratch.a = 0
        }
        if (duck.maskG3 & 0x2) {
            scratch.x = g.x
            scratch.y = g.y
            scratch.z = g.z
        }
        else {
            scratch.x = 0
            scratch.y = 0
            scratch.z = 0
        }
        if (duck.maskG3 & 0x4) {
            scratch.yz = g.yz
            scratch.zx = g.zx
            scratch.xy = g.xy
        }
        else {
            scratch.yz = 0
            scratch.zx = 0
            scratch.xy = 0
        }
        if (duck.maskG3 & 0x8) {
            scratch.b = g.b
        }
        else {
            scratch.b = 0
        }
        return scratch
    }
    else if (isNumber(arg)) {
        scratch.a = arg
        scratch.x = 0
        scratch.y = 0
        scratch.z = 0
        scratch.yz = 0
        scratch.zx = 0
        scratch.xy = 0
        scratch.b = 0
        return scratch
    }
    else {
        return void 0
    }
}