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Bindings to Node.js and browser platform APIs

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plinth src plinth browser serial.gleam
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src/plinth/browser/serial.gleam 

import gleam/javascript/array.{type Array}

import gleam/javascript/promise.{type Promise}



pub type SerialPort



// https://developer.mozilla.org/en-US/docs/Web/API/Serial/requestPort

@external(javascript, "../../serial_ffi.mjs", "requestPort")

pub fn request_port() -> Promise(Result(SerialPort, Nil))



// https://developer.mozilla.org/en-US/docs/Web/API/Serial/getPorts

@external(javascript, "../../serial_ffi.mjs", "getPorts")

pub fn get_ports() -> Promise(Result(Array(SerialPort), Nil))



// https://developer.mozilla.org/en-US/docs/Web/API/SerialPort/getInfo

@external(javascript, "../../serial_ffi.mjs", "getInfo")

pub fn get_info(port: SerialPort) -> Result(#(Int, Int), Nil)



// https://developer.mozilla.org/en-US/docs/Web/API/SerialPort/open

@external(javascript, "../../serial_ffi.mjs", "open")

pub fn open(port: SerialPort, baud_rate: Int) -> Promise(Result(Nil, Nil))



// https://developer.mozilla.org/en-US/docs/Web/API/SerialPort#reading_data_from_a_port

@external(javascript, "../../serial_ffi.mjs", "read")

pub fn read(

  port: SerialPort,

  callback: fn(BitArray) -> Nil,

) -> Promise(Result(Nil, Nil))