/// A Norg TODO status.
public enum TaskStatus: String, CaseIterable, Identifiable, Sendable, Hashable, Codable {
  case undone = " "
  case done = "x"
  case needsInput = "?"
  case urgent = "!"
  case recurring = "+"
  case pending = "-"
  case onHold = "="
  case cancelled = "_"

  /// Identifier, corresponds to its character.
  public var id: String { rawValue }

  /// Creates a TaskStatus based on a UTF-8 character.
  public init?(marker: Character) {
    self.init(rawValue: String(marker))
  }

  init?(markerByte byte: UInt8) {
    switch byte {
    case UInt8(ascii: " "): self = .undone
    case UInt8(ascii: "x"): self = .done
    case UInt8(ascii: "?"): self = .needsInput
    case UInt8(ascii: "!"): self = .urgent
    case UInt8(ascii: "+"): self = .recurring
    case UInt8(ascii: "-"): self = .pending
    case UInt8(ascii: "="): self = .onHold
    case UInt8(ascii: "_"): self = .cancelled
    default: return nil
    }
  }
}