prototooth/tools/gen-service-uuids/main.go

94 lines
1.9 KiB
Go

// +build ignore
package main
import (
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"strings"
"text/template"
"time"
"git.tcp.direct/kayos/prototooth"
)
type Service struct {
Name string `json:"name"`
Identifier string `json:"identifier"`
UUID string `json:"uuid"`
Source string `json:"source"`
}
func (s Service) VarName() string {
str := strings.ReplaceAll(s.Name, "Service", "")
str = strings.ReplaceAll(str, ":", "")
str = strings.ReplaceAll(str, "-", "")
str = strings.Title(str)
return strings.ReplaceAll(str, " ", "")
}
func (s Service) UUIDFunc() string {
if len(s.UUID) == 4 {
return "New16BitUUID(0x" + s.UUID + ")"
}
uuid, err := bluetooth.ParseUUID(strings.ToLower(s.UUID))
if err != nil {
panic(err)
}
b := uuid.Bytes()
bs := hex.EncodeToString(b[:])
bss := ""
for i := 0; i < len(bs); i += 2 {
bss = "0x" + bs[i:i+2] + "," + bss
}
return "NewUUID([16]byte{" + bss + "})"
}
func main() {
jsonFile, err := os.Open("data/service_uuids.json")
if err != nil {
fmt.Println(err)
}
defer jsonFile.Close()
data, _ := ioutil.ReadAll(jsonFile)
var services []Service
json.Unmarshal(data, &services)
f, err := os.Create("service_uuids.go")
if err != nil {
fmt.Println(err)
return
}
defer f.Close()
packageTemplate := template.Must(template.New("").Parse(tmpl))
packageTemplate.Execute(f, struct {
Timestamp time.Time
Services []Service
}{
Timestamp: time.Now(),
Services: services,
})
}
var tmpl = `// Code generated by bin/gen-service-uuids; DO NOT EDIT.
// This file was generated on {{.Timestamp}} using the list of standard service UUIDs from
// https://github.com/NordicSemiconductor/bluetooth-numbers-database/blob/master/v1/service_uuids.json
//
package bluetooth
var (
{{ range .Services }}
// ServiceUUID{{.VarName}} - {{.Name}}
ServiceUUID{{.VarName}} = {{.UUIDFunc}}
{{ end }}
)
`