HEMS: add templates (#25832)

Co-authored-by: Michael Geers <michael@geers.tv>
Co-authored-by: premultiply <4681172+premultiply@users.noreply.github.com>

util/config/config.go

@@ -108,6 +108,16 @@ func ConfigurationsByClass(class templates.Class) ([]Config, error) {
 	return res, tx.Error
 }
 
+// ConfigurationByClass returns the single configuration for class, or nil if none
+func ConfigurationByClass(class templates.Class) (*Config, error) {
+	configs, err := ConfigurationsByClass(class)
+	if err != nil || len(configs) == 0 {
+		return nil, err
+	}
+
+	return &configs[0], nil
+}
+
 // ConfigByID returns device by id from the database
 func ConfigByID(id int) (Config, error) {
 	var config Config

util/config/instance.go

@@ -4,6 +4,7 @@ import (
 	evbus "github.com/asaskevich/EventBus"
 	"github.com/evcc-io/evcc/api"
 	"github.com/evcc-io/evcc/core/loadpoint"
+	"github.com/evcc-io/evcc/hems/hems"
 )
 
 var bus = evbus.New()
@@ -13,6 +14,7 @@ var instance struct {
 	chargers   *handler[api.Charger]
 	vehicles   *handler[api.Vehicle]
 	circuits   *handler[api.Circuit]
+	hems       *handler[hems.API]
 	messengers *handler[api.Messenger]
 	loadpoints *handler[loadpoint.API]
 	tariffs    *handler[api.Tariff]
@@ -27,6 +29,7 @@ func Reset() {
 	instance.chargers = &handler[api.Charger]{topic: "charger"}
 	instance.vehicles = &handler[api.Vehicle]{topic: "vehicle"}
 	instance.circuits = &handler[api.Circuit]{topic: "circuit"}
+	instance.hems = &handler[hems.API]{topic: "hems"}
 	instance.messengers = &handler[api.Messenger]{topic: "messenger"}
 	instance.loadpoints = &handler[loadpoint.API]{topic: "loadpoint"}
 	instance.tariffs = &handler[api.Tariff]{topic: "tariff"}
@@ -60,6 +63,10 @@ func Circuits() Handler[api.Circuit] {
 	return instance.circuits
 }
 
+func Hems() Handler[hems.API] {
+	return instance.hems
+}
+
 func Loadpoints() Handler[loadpoint.API] {
 	return instance.loadpoints
 }

util/templates/class.go

@@ -12,4 +12,5 @@ const (
 	Loadpoint
 	Circuit
 	Messenger
+	Hems
 )

util/templates/class_enumer.go

@@ -7,11 +7,11 @@ import (
 	"strings"
 )
 
-const _ClassName = "chargermetervehicletariffloadpointcircuitmessenger"
+const _ClassName = "chargermetervehicletariffloadpointcircuitmessengerhems"
 
-var _ClassIndex = [...]uint8{0, 7, 12, 19, 25, 34, 41, 50}
+var _ClassIndex = [...]uint8{0, 7, 12, 19, 25, 34, 41, 50, 54}
 
-const _ClassLowerName = "chargermetervehicletariffloadpointcircuitmessenger"
+const _ClassLowerName = "chargermetervehicletariffloadpointcircuitmessengerhems"
 
 func (i Class) String() string {
 	i -= 1
@@ -32,9 +32,10 @@ func _ClassNoOp() {
 	_ = x[Loadpoint-(5)]
 	_ = x[Circuit-(6)]
 	_ = x[Messenger-(7)]
+	_ = x[Hems-(8)]
 }
 
-var _ClassValues = []Class{Charger, Meter, Vehicle, Tariff, Loadpoint, Circuit, Messenger}
+var _ClassValues = []Class{Charger, Meter, Vehicle, Tariff, Loadpoint, Circuit, Messenger, Hems}
 
 var _ClassNameToValueMap = map[string]Class{
 	_ClassName[0:7]:        Charger,
@@ -51,6 +52,8 @@ var _ClassNameToValueMap = map[string]Class{
 	_ClassLowerName[34:41]: Circuit,
 	_ClassName[41:50]:      Messenger,
 	_ClassLowerName[41:50]: Messenger,
+	_ClassName[50:54]:      Hems,
+	_ClassLowerName[50:54]: Hems,
 }
 
 var _ClassNames = []string{
@@ -61,6 +64,7 @@ var _ClassNames = []string{
 	_ClassName[25:34],
 	_ClassName[34:41],
 	_ClassName[41:50],
+	_ClassName[50:54],
 }
 
 // ClassString retrieves an enum value from the enum constants string name.

util/templates/init.go

@@ -33,7 +33,7 @@ func init() {
 
 	baseTmpl = template.Must(FuncMap(template.New("base")).ParseFS(includeFS, "includes/*.tpl"))
 
-	for _, class := range []Class{Charger, Meter, Vehicle, Tariff, Messenger, Circuit} {
+	for _, class := range []Class{Charger, Meter, Vehicle, Tariff, Messenger, Circuit, Hems} {
 		load(class)
 	}
 }