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generator.go
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generator.go
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// This file is part of the Smart Home
// Program complex distribution https://github.com/e154/smart-home
// Copyright (C) 2016-2023, Filippov Alex
//
// This library is free software: you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library. If not, see
// <https://www.gnu.org/licenses/>.
package plugin
import (
"os"
"path"
"strings"
"text/template"
"github.com/e154/smart-home/common/logger"
"github.com/e154/smart-home/cmd/cli/commands/generate"
"github.com/e154/smart-home/common"
"github.com/spf13/cobra"
)
var (
log = logger.MustGetLogger("plugin")
)
var actorTpl = `//CODE GENERATED AUTOMATICALLY
package {{.Package}}
import (
"fmt"
"sync"
"{{.Dir}}/common"
m "{{.Dir}}/models"
"{{.Dir}}/system/bus"
"{{.Dir}}/system/supervisor"
)
type Actor struct {
entity_manager.BaseActor
eventBus bus.Bus
}
func NewActor(entity *m.Entity,
visor supervisor.Supervisor,
eventBus bus.Bus) *Actor {
name := entity.Id.Name()
actor := &Actor{
BaseActor: supervisor.BaseActor{
Id: common.EntityId(fmt.Sprintf("%s.%s", Entity{{.PluginName}}, name)),
Name: name,
Description: "{{.PluginName}} plugin",
EntityType: Entity{{.PluginName}},
AttrMu: &sync.RWMutex{},
Attrs: entity.Attributes,
Setts: entity.Settings,
Supervisor: visor,
Items: NewStates(),
Actions: NewActions(),
},
eventBus: eventBus,
}
if actor.Setts == nil {
actor.Setts = NewSettings()
}
return actor
}
func (e *Actor) Spawn() entity_manager.PluginActor {
e.UpdateEntity()
return e
}
func (e *Actor) UpdateEntity() {
}
`
var pluginTpl = `//CODE GENERATED AUTOMATICALLY
package {{.Package}}
import (
"fmt"
"sync"
"time"
"github.com/pkg/errors"
"{{.Dir}}/common"
"{{.Dir}}/common/apperr"
"{{.Dir}}/common/logger"
m "{{.Dir}}/models"
"{{.Dir}}/system/entity_manager"
"{{.Dir}}/system/plugins"
)
var (
log = logger.MustGetLogger("plugins.{{.Package}}")
)
var _ plugins.Plugable = (*plugin)(nil)
func init() {
plugins.RegisterPlugin(Name, New)
}
type plugin struct {
*plugins.Plugin
actorsLock *sync.Mutex
actors map[common.EntityId]*Actor
quit chan struct{}
pause time.Duration
}
func New() plugins.Plugable {
return &plugin{
Plugin: plugins.NewPlugin(),
actorsLock: &sync.Mutex{},
actors: make(map[common.EntityId]*Actor),
pause: 240,
}
}
func (p *plugin) Load(service plugins.Service) (err error) {
if err = p.Plugin.Load(service); err != nil {
return
}
p.quit = make(chan struct{})
go func() {
ticker := time.NewTicker(time.Second * p.pause)
defer func() {
ticker.Stop()
close(p.quit)
}()
for {
select {
case <-p.quit:
return
case <-ticker.C:
p.updateForAll()
}
}
}()
return nil
}
func (p *plugin) Unload() (err error) {
if err = p.Plugin.Unload(); err != nil {
return
}
p.quit <- struct{}{}
return nil
}
func (p *plugin) Name() string {
return Name
}
func (p *plugin) AddOrUpdateActor(entity *m.Entity) (err error) {
p.actorsLock.Lock()
defer p.actorsLock.Unlock()
if _, ok := p.actors[entity.Id]; ok {
p.actors[entity.Id].UpdateEntity()
return
}
p.actors[entity.Id] = NewActor(entity, p.Supervisor, p.EventBus)
p.Supervisor.Spawn(p.actors[entity.Id].Spawn)
return
}
func (p *plugin) RemoveActor(entityId common.EntityId) error {
return p.removeEntity(entityId)
}
func (p *plugin) removeEntity(entityId common.EntityId) (err error) {
p.actorsLock.Lock()
defer p.actorsLock.Unlock()
if _, ok := p.actors[entityId]; !ok {
err = errors.Wrap(apperr.ErrNotFound, fmt.Sprintf("failed remove \"%s\"", entityId.Name()))
return
}
delete(p.actors, entityId)
return
}
func (p *plugin) updateForAll() {
p.actorsLock.Lock()
defer p.actorsLock.Unlock()
for _, actor := range p.actors {
actor.UpdateEntity()
}
}
func (p *plugin) Type() plugins.PluginType {
return plugins.PluginBuiltIn
}
func (p *plugin) Depends() []string {
return nil
}
func (p *plugin) Version() string {
return "0.0.1"
}
func (p *plugin) Options() m.PluginOptions {
return m.PluginOptions{
Actors: true,
ActorAttrs: NewAttr(),
ActorSetts: NewSettings(),
ActorActions: entity_manager.ToEntityActionShort(NewActions()),
ActorStates: entity_manager.ToEntityStateShort(NewStates()),
}
}
`
var typesTpl = `//CODE GENERATED AUTOMATICALLY
package {{.Package}}
import (
"{{.Dir}}/common"
m "{{.Dir}}/models"
"{{.Dir}}/system/entity_manager"
)
const (
Name = "{{.PluginName}}"
Entity{{.PluginName}} = string("{{.PluginName}}")
)
const (
SettingParam1 = "param1"
SettingParam2 = "param2"
AttrPhase = "phase"
StateEnabled = "enabled"
StateDisabled = "disabled"
ActionEnabled = "enable"
ActionDisable = "disable"
)
// store entity status in this struct
func NewAttr() m.Attributes {
return m.Attributes{
AttrPhase: {
Name: AttrPhase,
Type: common.AttributeString,
},
}
}
// entity settings
func NewSettings() m.Attributes {
return m.Attributes{
SettingParam1: {
Name: SettingParam1,
Type: common.AttributeString,
},
SettingParam2: {
Name: SettingParam2,
Type: common.AttributeString,
},
}
}
// state list entity
func NewStates() (states map[string]entity_manager.ActorState) {
states = map[string]entity_manager.ActorState{
StateEnabled: {
Name: StateEnabled,
Description: "Enabled",
},
StateDisabled: {
Name: StateDisabled,
Description: "disabled",
},
}
return
}
// entity action list
func NewActions() map[string]entity_manager.ActorAction {
return map[string]entity_manager.ActorAction{
ActionEnabled: {
Name: ActionEnabled,
Description: "enable",
},
ActionDisable: {
Name: ActionDisable,
Description: "disable",
},
}
}
`
var (
controllerCmd = &cobra.Command{
Use: "p",
Short: "plugin generator",
Long: "$ cli g p [pluginName]",
}
endpointName string
)
func init() {
generate.Generate.AddCommand(controllerCmd)
controllerCmd.Flags().StringVarP(&endpointName, "endpoint", "e", "EndpointName", "EndpointName")
controllerCmd.Run = func(cmd *cobra.Command, args []string) {
if len(args) == 0 {
log.Error("Wrong number of arguments. Run: cli help generate")
return
}
currpath, _ := os.Getwd()
g := Generator{}
g.Generate(args[0], currpath)
}
}
// Generator ...
type Generator struct{}
// Generate ...
func (e Generator) Generate(pluginName, currpath string) {
log.Infof("Using '%s' as controller name", pluginName)
fp := path.Join(currpath, "plugins", strings.ToLower(pluginName))
e.addPLugin(fp, pluginName)
}
func createFile(fp, tpl, fileName, pluginName string) {
if _, err := os.Stat(fp); os.IsNotExist(err) {
if err := os.MkdirAll(fp, 0777); err != nil {
log.Errorf("Could not create plugin directory: %s", err.Error())
return
}
}
templateData := struct {
Package string
PluginName string
Dir string
}{
Dir: common.Dir(),
Package: strings.ToLower(pluginName),
PluginName: pluginName,
}
fpath := path.Join(fp, strings.ToLower(fileName)+".go")
f, err := os.OpenFile(fpath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666)
if err != nil {
log.Errorf("Could not create file: %s", err.Error())
return
}
defer f.Close()
t := template.Must(template.New("controller").Parse(tpl))
if t.Execute(f, templateData) != nil {
log.Error(err.Error())
}
common.FormatSourceCode(fpath)
}
func (e Generator) addPLugin(fp, pluginName string) {
createFile(fp, actorTpl, "actor", pluginName)
createFile(fp, pluginTpl, "plugin", pluginName)
createFile(fp, typesTpl, "types", pluginName)
}