import Foundation

public struct EquipmentMetadata: Equatable {
  public var coolingCapacity: CoolingCapacity
  public var fanType: FanType
  public var ratedStaticPressures: RatedStaticPressures

  public init(
    coolingCapacity: CoolingCapacity = .three,
    fanType: FanType = .constantSpeed,
    ratedStaticPressures: RatedStaticPressures = .init()
  ) {
    self.coolingCapacity = coolingCapacity
    self.fanType = fanType
    self.ratedStaticPressures = ratedStaticPressures
  }

  public enum CoolingCapacity: Double, Equatable, CaseIterable, Identifiable, CustomStringConvertible {
    case half = 0.5
    case threeQuarter = 0.75
    case one = 1
    case oneAndAHalf = 1.5
    case two = 2
    case twoAndAHalf = 2.5
    case three = 3
    case threeAndAHalf = 3.5
    case four = 4
    case five = 5

    public var id: Self { self }

    public static var `default`: Self { .three }

    public var description: String {
      switch self {
      case .half:
        return "1/2 Ton"
      case .threeQuarter:
        return "3/4 Ton"
      case .one:
        return "1 Ton"
      case .oneAndAHalf:
        return "1.5 Tons"
      case .two:
        return "2 Tons"
      case .twoAndAHalf:
        return "2.5 Tons"
      case .three:
        return "3 Tons"
      case .threeAndAHalf:
        return "3.5 Tons"
      case .four:
        return "4 Tons"
      case .five:
        return "5 Tons"
      }
    }
  }

  public enum FanType: Hashable, Equatable, CaseIterable, CustomStringConvertible, Identifiable {
    case constantSpeed
    case variableSpeed

    public var id: Self { self }
    public static var `default`: Self { .constantSpeed }

    public var description: String {
      switch self {
      case .constantSpeed:
        return "Constant Speed"
      case .variableSpeed:
        return "Variable Speed"
      }
    }
  }
}