import { cloneDeep } from 'lodash'
import Spline from 'cubic-spline-ts'

export interface layer {
  layerWidth: number
  materialName: string
  n: number
  k: number
  nSpline: Spline|undefined
  kSpline: Spline|undefined
}

export interface simulationSetup {
  hostIndex: number
  fromWL: number; toWL:number; pointsWL:number
  layers: layer[]
}

export interface simulationSetupStateInterface {
  library: Map<string,simulationSetup>
  gui: simulationSetup
  current: simulationSetup
}

function setupFactory(hostIndex = 1,
                      fromWL = 300, toWL=1000, pointsWL=101,
                      layers = [
                        {layerWidth:100, n:4, k:0.01, materialName:'nk',
                          nSpline:undefined, kSpline:undefined
                        },
                      ]
                     ):simulationSetup {
  return {hostIndex:hostIndex,
    fromWL:fromWL, toWL:toWL, pointsWL:pointsWL,
  layers: cloneDeep(layers)}
}

function state(): simulationSetupStateInterface {
  const gui = setupFactory()
  const current = cloneDeep(gui)
  const library = new Map<string,simulationSetup>()
  library.set('default', cloneDeep(gui))
  return {
    library,
    gui,
    current
  }
};

export default state;