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package notification
import (
"context"
"fmt"
"sync"
"github.com/target/goalert/notification/nfydest"
"github.com/target/goalert/util/log"
)
// Manager is used as an intermediary between Senders and Receivers.
// It should be constructed first (with NewManager()) and passed to
// Senders and Receivers that require it.
type Manager struct {
mx *sync.RWMutex
reg *nfydest.Registry
}
// var _ ResultReceiver = Manager{}
// NewManager initializes a new Manager.
func NewManager(reg *nfydest.Registry) *Manager {
return &Manager{
mx: new(sync.RWMutex),
reg: reg,
}
}
// MessageStatus will return the current status of a message.
func (mgr *Manager) MessageStatus(ctx context.Context, providerMsgID ProviderMessageID) (*Status, error) {
return mgr.reg.MessageStatus(ctx, providerMsgID.ProviderName, providerMsgID.ExternalID)
}
// SetResultReceiver will set the ResultReceiver as the target for all Receiver calls.
// It will panic if called multiple times.
func (mgr *Manager) SetResultReceiver(ctx context.Context, recv ResultReceiver) error {
types, err := mgr.reg.Types(ctx)
if err != nil {
return fmt.Errorf("error getting types: %w", err)
}
for _, t := range types {
p := mgr.reg.Provider(t.Type)
if r, ok := p.(ReceiverSetter); ok {
r.SetReceiver(&namedReceiver{r: recv, destType: t.Type})
}
}
return nil
}
// SendMessage tries all registered senders for the type given
// in Notification. An error is returned if there are no registered senders for the type
// or if an error is returned from all of them.
func (mgr *Manager) SendMessage(ctx context.Context, msg Message) (*SendResult, error) {
mgr.mx.RLock()
defer mgr.mx.RUnlock()
destType := msg.DestType()
ctx = log.WithFields(ctx, log.Fields{
"ProviderType": destType,
"CallbackID": msg.MsgID(),
})
if a, ok := msg.(Alert); ok {
ctx = log.WithField(ctx, "AlertID", a.AlertID)
}
sendCtx := log.WithField(ctx, "ProviderName", msg.DestType())
sent, err := mgr.reg.SendMessage(sendCtx, msg)
if err != nil {
return nil, err
}
log.Logf(sendCtx, "notification sent")
metricSentTotal.
WithLabelValues(msg.DestType(), fmt.Sprintf("%T", msg), msgSvcID(msg)).
Inc()
return &SendResult{
ID: msg.MsgID(),
Status: Status{
State: sent.State,
Details: sent.StateDetails,
SrcValue: sent.SrcValue,
},
ProviderMessageID: ProviderMessageID{
ProviderName: msg.DestType(),
ExternalID: sent.ExternalID,
},
}, nil
}
func msgSvcID(msg Message) string {
switch msg := msg.(type) {
case Alert:
return msg.ServiceID
case AlertBundle:
return msg.ServiceID
case AlertStatus:
return msg.ServiceID
}
return ""
}
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