export type SerialParity = 'none' | 'odd' | 'even'
export type SerialFlowControl = 'none' | 'software' | 'hardware'
/** What to send when the user presses Enter (UART has no PTY line discipline). */
export type SerialLineEnding = 'lf' | 'cr' | 'crlf'

export interface SerialConfig {
  path: string
  baudRate: number
  dataBits: 5 | 6 | 7 | 8
  stopBits: 1 | 2
  parity: SerialParity
  flowControl: SerialFlowControl
  /** Optional local echo — only for serial (PTY backends must stay echo-off). */
  localEcho?: boolean
  lineEnding?: SerialLineEnding
}

export interface SerialPortSummary {
  path: string
  portType: string
}

export interface SerialDataEvent {
  sessionId: string
  data: number[]
}

export interface SerialErrorEvent {
  sessionId: string
  message: string
}