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scripts.go
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scripts.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 scripts
import (
"context"
"github.com/e154/smart-home/common/encryptor"
"github.com/e154/smart-home/common/events"
"github.com/e154/smart-home/common/logger"
m "github.com/e154/smart-home/models"
"github.com/e154/smart-home/system/bus"
"github.com/e154/smart-home/system/scripts/bind"
"github.com/e154/smart-home/system/storage"
"go.uber.org/fx"
)
var (
log = logger.MustGetLogger("scripts")
)
// ScriptService ...
type ScriptService interface {
NewEngine(s *m.Script) (*Engine, error)
NewEngineWatcher(*m.Script) (*EngineWatcher, error)
NewEnginesWatcher([]*m.Script) (*EnginesWatcher, error)
PushStruct(name string, s interface{})
PopStruct(name string)
PushFunctions(name string, s interface{})
PopFunction(name string)
Restart()
}
// scriptService ...
type scriptService struct {
cfg *m.AppConfig
functions *Pull
structures *Pull
storage *storage.Storage
eventBus bus.Bus
}
// NewScriptService ...
func NewScriptService(lc fx.Lifecycle,
cfg *m.AppConfig,
storage *storage.Storage,
eventBus bus.Bus) ScriptService {
s := &scriptService{
cfg: cfg,
functions: NewPull(),
structures: NewPull(),
storage: storage,
eventBus: eventBus,
}
s.bind()
lc.Append(fx.Hook{
OnStart: func(ctx context.Context) (err error) {
eventBus.Publish("system/services/scripts", events.EventServiceStarted{Service: "Scripts"})
return
},
OnStop: func(ctx context.Context) (err error) {
eventBus.Publish("system/services/scripts", events.EventServiceStopped{Service: "Scripts"})
return
},
})
return s
}
// NewEngine ...
func (s *scriptService) NewEngine(scr *m.Script) (*Engine, error) {
return NewEngine(scr, s.structures, s.functions)
}
// NewEngineWatcher ...
func (s *scriptService) NewEngineWatcher(script *m.Script) (*EngineWatcher, error) {
return NewEngineWatcher(script, s, s.eventBus), nil
}
// NewEnginesWatcher ...
func (s *scriptService) NewEnginesWatcher(scripts []*m.Script) (*EnginesWatcher, error) {
return NewEnginesWatcher(scripts, s, s.eventBus), nil
}
// PushStruct ...
func (s *scriptService) PushStruct(name string, str interface{}) {
log.Infof("register structure: '%s'", name)
s.structures.Push(name, str)
}
// PopStruct ...
func (s *scriptService) PopStruct(name string) {
log.Infof("unregister structure: '%s'", name)
s.structures.Pop(name)
}
// PushFunctions ...
func (s *scriptService) PushFunctions(name string, f interface{}) {
log.Infof("register function: '%s'", name)
s.functions.Push(name, f)
}
// PopFunction ...
func (s *scriptService) PopFunction(name string) {
log.Infof("unregister function: '%s'", name)
s.functions.Pop(name)
}
// Restart ...
func (s *scriptService) Restart() {
s.functions.Purge()
s.structures.Purge()
s.bind()
s.eventBus.Publish("system/services/scripts", events.EventServiceRestarted{})
}
func (s *scriptService) bind() {
s.PushStruct("Log", &bind.LogBind{})
s.PushFunctions("ExecuteSync", bind.ExecuteSync)
s.PushFunctions("ExecuteAsync", bind.ExecuteAsync)
s.PushFunctions("Encrypt", encryptor.EncryptBind)
s.PushFunctions("Decrypt", encryptor.DecryptBind)
s.PushStruct("Storage", bind.NewStorageBind(s.storage))
s.PushStruct("http", bind.NewHttpBind())
s.PushStruct("HTTP", bind.NewHttpBind())
}