package comms

import (
	"adam-gui/config"
	"adam-gui/utils"
	"fmt"

	"go.bug.st/serial"
	"go.bug.st/serial/enumerator"
)

var BoardBlocked chan bool = make(chan bool, 10)
var SerialPortToUse string

func EnumSerialDevices() []*enumerator.PortDetails {
	var err error
	detectedPorts, err := enumerator.GetDetailedPortsList()
	utils.CheckError(err)
	return detectedPorts
}

func EstablishComms() serial.Port {
	mode := &serial.Mode{
		BaudRate: config.SerialPortBaudRate,
	}
	port, err := serial.Open(SerialPortToUse, mode)
	utils.CheckError(err)
	return port
}

func Measure(port serial.Port, verb string) string {
	_, err := port.Write([]byte(verb + "\r\n"))
	utils.CheckError(err)
	buff := make([]byte, 100)
	n := 0
	for {
		n, err = port.Read(buff)
		utils.CheckError(err)
		if n == 0 {
			break
		}
	}
	/*re := regexp.MustCompile("[0-9.-+]+")
	fmt.Printf("println: %v\n", strings.Join(re.FindAllString("+4122000.kg", -1), ""))*/
	return string(buff[:n-2]) // remove \r\n
}

func Tare(port serial.Port) {
	_, err := port.Write([]byte("Z\r\n"))
	utils.CheckError(err)
}

func Hold(port serial.Port) {
	_, err := port.Write([]byte("H\r\n"))
	utils.CheckError(err)
}

func SetDefaultSerialPort() bool {
	found := false
	serialDevices := EnumSerialDevices()
	for _, port := range serialDevices {
		fmt.Printf("%s %s\n", port.SerialNumber, port.Name)
		if port.SerialNumber == config.DefaultPortSerialNumber {
			SerialPortToUse = port.Name
			found = true
		}
	}
	return found
}