DiceRoller View Model

DiceRollerVM.swift

import Tempura

struct DiceRollerVM: ViewModelWithState {

  private let currentResults: [AppState.DiceState.Die: Int]

  init(state: AppState) {
    self.currentResults = state.diceState.currentResults
  }

  func result(for die: AppState.DiceState.Die) -> String {
    guard let result = self.currentResults[die] else {
      return "-"
    }
    return "\(result)"
  }
}