Files
oc-datacenter/infrastructure/booking_watchdog.go

113 lines
3.2 KiB
Go

package infrastructure
import (
"encoding/json"
"fmt"
"sync"
"time"
oclib "cloud.o-forge.io/core/oc-lib"
"cloud.o-forge.io/core/oc-lib/dbs"
bookingmodel "cloud.o-forge.io/core/oc-lib/models/booking"
"cloud.o-forge.io/core/oc-lib/models/common/enum"
"cloud.o-forge.io/core/oc-lib/tools"
"go.mongodb.org/mongo-driver/bson/primitive"
)
// processedBookings tracks booking IDs already handled this process lifetime.
var processedBookings sync.Map
// closingStates is the set of terminal booking states.
var ClosingStates = map[enum.BookingStatus]bool{
enum.FAILURE: true,
enum.SUCCESS: true,
enum.FORGOTTEN: true,
enum.CANCELLED: true,
}
// WatchBookings is a safety-net fallback for when oc-monitord fails to launch.
// It detects bookings that are past expected_start_date by at least 1 minute and
// are still in a non-terminal state. Instead of writing to the database directly,
// it emits WORKFLOW_STEP_DONE_EVENT with State=FAILURE on NATS so that oc-scheduler
// handles the state transition — keeping a single source of truth for booking state.
//
// Must be launched in a goroutine from main.
func WatchBookings() {
logger := oclib.GetLogger()
logger.Info().Msg("BookingWatchdog: started")
ticker := time.NewTicker(time.Minute)
defer ticker.Stop()
for range ticker.C {
if err := scanStaleBookings(); err != nil {
logger.Error().Msg("BookingWatchdog: " + err.Error())
}
}
}
// scanStaleBookings queries all bookings whose ExpectedStartDate passed more than
// 1 minute ago. Non-terminal ones get a WORKFLOW_STEP_DONE_EVENT FAILURE emitted
// on NATS so oc-scheduler closes them.
func scanStaleBookings() error {
myself, err := oclib.GetMySelf()
if err != nil {
return fmt.Errorf("could not resolve local peer: %w", err)
}
peerID := myself.GetID()
deadline := time.Now().UTC().Add(-time.Minute)
res := oclib.NewRequest(oclib.LibDataEnum(oclib.BOOKING), "", peerID, []string{}, nil).
Search(&dbs.Filters{
And: map[string][]dbs.Filter{
"expected_start_date": {{
Operator: dbs.LTE.String(),
Value: primitive.NewDateTimeFromTime(deadline),
}},
},
}, "", false)
if res.Err != "" {
return fmt.Errorf("stale booking search failed: %s", res.Err)
}
for _, dbo := range res.Data {
b, ok := dbo.(*bookingmodel.Booking)
if !ok {
continue
}
go emitWatchdogFailure(b)
}
return nil
}
// emitWatchdogFailure publishes a WORKFLOW_STEP_DONE_EVENT FAILURE for a stale
// booking. oc-scheduler is the single authority for booking state transitions.
func emitWatchdogFailure(b *bookingmodel.Booking) {
logger := oclib.GetLogger()
if _, done := processedBookings.Load(b.GetID()); done {
return
}
if ClosingStates[b.State] {
processedBookings.Store(b.GetID(), struct{}{})
return
}
now := time.Now().UTC()
payload, err := json.Marshal(tools.WorkflowLifecycleEvent{
BookingID: b.GetID(),
State: enum.FAILURE.EnumIndex(),
RealEnd: &now,
})
if err != nil {
return
}
tools.NewNATSCaller().SetNATSPub(tools.WORKFLOW_STEP_DONE_EVENT, tools.NATSResponse{
FromApp: "oc-datacenter",
Method: int(tools.WORKFLOW_STEP_DONE_EVENT),
Payload: payload,
})
logger.Info().Msgf("BookingWatchdog: booking %s stale → emitting FAILURE", b.GetID())
processedBookings.Store(b.GetID(), struct{}{})
}