import { Range } from '../useStore'

export function isOverlap(a: Range, b: Range) {
  const [startingRange, secondRange] = a[0] < b[0] ? [a, b] : [b, a]
  const [lastOfFirst, firstOfSecond] = [startingRange[1], secondRange[0]]
  return lastOfFirst >= firstOfSecond
}

export function roundOff(num: number, places: number = 2): number {
  const x = Math.pow(10, places)
  return Math.round(num * x) / x
}

export function getLength(a: [number, number], b: [number, number]): number {
  const x = b[0] - a[0]
  const y = b[1] - a[1]
  return Math.sqrt(x * x + y * y)
}

export function getAngle(a: [number, number], b: [number, number]): number {
  const x = b[0] - a[0]
  const y = b[1] - a[1]
  return ((Math.atan2(y, x) * 180) / Math.PI + 360) % 360
}