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package devices
import (
"log"
"github.com/xxxserxxx/lingo/v2"
)
const (
Temperatures = "Temperatures" // Device domain for temperature sensors
)
// TODO: Redesign; this is not thread safe, and it's easy to write code that triggers concurrent modification panics. Channels?
var Domains []string = []string{Temperatures}
var _shutdownFuncs []func() error
var _devs map[string][]string
var _defaults map[string][]string
var _startup []func(map[string]string) error
var tr lingo.Translations
// RegisterShutdown stores a function to be called by gotop on exit, allowing
// extensions to properly release resources. Extensions should register a
// shutdown function IFF the extension is using resources that need to be
// released. The returned error will be logged, but no other action will be
// taken.
func RegisterShutdown(f func() error) {
_shutdownFuncs = append(_shutdownFuncs, f)
}
func RegisterStartup(f func(vars map[string]string) error) {
if _startup == nil {
_startup = make([]func(map[string]string) error, 0, 1)
}
_startup = append(_startup, f)
}
// Startup is after configuration has been parsed, and provides extensions with
// any configuration data provided by the user. An extension's registered
// startup function should process and populate data at least once so that the
// widgets have a full list of sensors, for (e.g.) setting up colors.
func Startup(vars map[string]string) []error {
rv := make([]error, 0)
for _, f := range _startup {
err := f(vars)
if err != nil {
rv = append(rv, err)
}
}
return rv
}
// Shutdown will be called by the `main()` function if gotop is exited
// cleanly. It will call all of the registered shutdown functions of devices,
// logging all errors but otherwise not responding to them.
func Shutdown() {
for _, f := range _shutdownFuncs {
err := f()
if err != nil {
log.Print(err)
}
}
}
func RegisterDeviceList(typ string, all func() []string, def func() []string) {
if _devs == nil {
_devs = make(map[string][]string)
}
if _defaults == nil {
_defaults = make(map[string][]string)
}
if _, ok := _devs[typ]; !ok {
_devs[typ] = []string{}
}
_devs[typ] = append(_devs[typ], all()...)
if _, ok := _defaults[typ]; !ok {
_defaults[typ] = []string{}
}
_defaults[typ] = append(_defaults[typ], def()...)
}
// Return a list of devices registered under domain, where `domain` is one of the
// defined constants in `devices`, e.g., devices.Temperatures. The
// `enabledOnly` flag determines whether all devices are returned (false), or
// only the ones that have been enabled for the domain.
func Devices(domain string, all bool) []string {
if all {
return _devs[domain]
}
return _defaults[domain]
}
func SetTr(tra lingo.Translations) {
tr = tra
}
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