package main

import (
	"fmt"

	"google.golang.org/protobuf/proto"

	"powerpod/gotool/pb"
)

func runVersion(sp *serialPort) error {
	payload, err := sp.exchange(byte(pb.MessageType_VERSION), "VERSION")
	if err != nil {
		return err
	}

	var msg pb.UartMessage
	if err := proto.Unmarshal(payload[1:], &msg); err != nil {
		return fmt.Errorf("decode protobuf: %w", err)
	}

	if msg.GetType() != pb.MessageType_VERSION {
		return fmt.Errorf("unexpected message type %v", msg.GetType())
	}

	ver := msg.GetVersionResponse()
	if ver == nil {
		return fmt.Errorf("response missing version_response")
	}

	fmt.Printf("version:  %d\n", ver.GetVersion())
	fmt.Printf("git_hash: %s\n", ver.GetGitHash())
	return nil
}