package communication

import (
	"fmt"

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

const (
	ST_VID = `0483`
)

type Phy struct {
	port serial.Port
}

func GetStSerials() ([]string, error) {
	retval := make([]string, 0)

	ports, err := enumerator.GetDetailedPortsList()
	if err != nil {
		return retval, err
	}

	for _, port := range ports {
		if port.IsUSB {
			if port.VID == ST_VID {
				retval = append(retval, port.Name)
			}
		}
	}

	return retval, nil
}

func NewPhy(device string) (Phy, error) {
	p := Phy{}
	mode := &serial.Mode{
		BaudRate: 115200,
	}
	port, err := serial.Open(device, mode)
	if err != nil {
		return p, err
	}
	p.port = port
	return p, nil
}

func (phy *Phy) Cat() error {
	buff := make([]byte, 100)
	for {
		n, err := phy.port.Read(buff)
		if err != nil {
			return err
		}
		fmt.Printf("%s", string(buff[:n]))
	}
}