public enum ClimateZone: String, CaseIterable, Codable, Equatable, Sendable {
  // NOTE: Keep in this order.

  case hotHumid
  case moist
  case dry
  case marine

  public var zoneIdentifiers: [String] {
    switch self {
    case .dry:
      return ["2B", "3B", "4B", "5B", "6B", "7B"]
    case .hotHumid:
      return ["1A", "2A"]
    case .marine:
      return ["3C", "4C"]
    case .moist:
      return ["3A", "4A", "5A", "6A", "7A"]
    }
  }

  public var cfmPerTon: Int {
    switch self {
    case .dry: return 450
    case .hotHumid: return 350
    case .marine, .moist: return 400
    }
  }

  public var label: String {
    return "\(self == .hotHumid ? "Hot Humid" : rawValue.capitalized) (\(zoneIdentifiers.joined(separator: ", ")))"
  }
}