Event Scheduling/Listening

daemons/execution_manager.go

@@ -1,12 +1,14 @@
 package daemons
 
 import (
-	"fmt"
 	"oc-schedulerd/conf"
 	"time"
 
 	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/common/enum"
 	workflow_execution "cloud.o-forge.io/core/oc-lib/models/workflow_execution"
+	"go.mongodb.org/mongo-driver/bson/primitive"
 )
 
 var Executions = ScheduledExecution{Execs: map[string]workflow_execution.WorkflowExecution{}}
@@ -18,23 +20,53 @@ type ExecutionManager struct{}
 func (em *ExecutionManager) RetrieveNextExecutions() {
 	logger := oclib.GetLogger()
 	for {
-		fmt.Println("Checking for executions", len(Executions.Execs))
 		Executions.Mu.Lock()
 		if len(Executions.Execs) > 0 {
 			executions := Executions.Execs
+			orderedExec := map[int]map[string]workflow_execution.WorkflowExecution{}
 			for execId, exec := range executions {
-				if exec.ExecDate.Before(time.Now().UTC()) {
+				if orderedExec[exec.Priority] == nil {
-					logger.Info().Msg("Will execute " + execId + " soon")
+					orderedExec[exec.Priority] = map[string]workflow_execution.WorkflowExecution{}
-					go em.executeExecution(&exec)
+				}
-					delete(executions, execId)
+				orderedExec[exec.Priority][execId] = exec
+			}
+			for i := range []int{7, 6, 5, 4, 3, 2, 1, 0} { // priority in reversed
+				if orderedExec[i] == nil {
+					continue
+				}
+
+				for execId, exec := range orderedExec[i] {
+					if i == 0 && em.isAStartingExecutionBeforeEnd(&exec) { // BEST EFFORT exception
+						continue
+					}
+					if exec.ExecDate.Before(time.Now().UTC()) {
+						logger.Info().Msg("Will execute " + execId + " soon")
+						go em.executeExecution(&exec)
+						delete(executions, execId)
+					}
 				}
 			}
+
 		}
 		Executions.Mu.Unlock()
 		time.Sleep(time.Second)
 	}
 }
 
+func (em *ExecutionManager) isAStartingExecutionBeforeEnd(execution *workflow_execution.WorkflowExecution) bool {
+	access := workflow_execution.NewAccessor(nil)
+	l, _, err := access.Search(&dbs.Filters{
+		And: map[string][]dbs.Filter{
+			"execution_date": {{Operator: dbs.LTE.String(), Value: primitive.NewDateTimeFromTime(*execution.EndDate)}},
+			"state":          {{Operator: dbs.EQUAL.String(), Value: enum.SCHEDULED}},
+		}, // TODO later should refine on each endpoint
+	}, "", false)
+	if err != nil && len(l) == 0 {
+		return false
+	}
+	return true
+}
+
 func (em *ExecutionManager) executeExecution(execution *workflow_execution.WorkflowExecution) {
 	// start execution
 	// create the yaml that describes the pod : filename, path/url to Loki

daemons/schedule_manager.go

@@ -9,8 +9,11 @@ import (
 	oclib "cloud.o-forge.io/core/oc-lib"
 	"cloud.o-forge.io/core/oc-lib/dbs"
 	"cloud.o-forge.io/core/oc-lib/models/common/enum"
+	"cloud.o-forge.io/core/oc-lib/models/resources"
 	"cloud.o-forge.io/core/oc-lib/models/workflow_execution"
 	"cloud.o-forge.io/core/oc-lib/tools"
+
+	"github.com/google/uuid"
 	"github.com/nats-io/nats.go"
 	"github.com/rs/zerolog"
 	"go.mongodb.org/mongo-driver/bson/primitive"
@@ -67,9 +70,10 @@ func (s *ScheduleManager) ListenNATS() {
 		}
 		defer nc.Close()
 		var wg sync.WaitGroup
-		wg.Add(2)
+		wg.Add(3)
-		go s.listenForChange(nc, tools.REMOVE.GenerateKey(oclib.WORKFLOW.String()), true, wg)
+		go s.listenForChange(nc, tools.REMOVE.GenerateKey(oclib.WORKFLOW.String()), tools.REMOVE, wg)
-		go s.listenForChange(nc, tools.CREATE.GenerateKey(oclib.WORKFLOW.String()), false, wg)
+		go s.listenForChange(nc, tools.CREATE.GenerateKey(oclib.WORKFLOW.String()), tools.CREATE, wg)
+		go s.listenForChange(nc, tools.WORKFLOW_EVENT.GenerateKey(oclib.WORKFLOW.String()), tools.WORKFLOW_EVENT, wg)
 		wg.Wait()
 		break
 	}
@@ -78,7 +82,7 @@ func (s *ScheduleManager) ListenNATS() {
 // Goroutine listening to a NATS server for updates
 // on workflows' scheduling. Messages must contain
 // workflow execution ID, to allow retrieval of execution infos
-func (s *ScheduleManager) listenForChange(nc *nats.Conn, chanName string, delete bool, wg sync.WaitGroup) {
+func (s *ScheduleManager) listenForChange(nc *nats.Conn, chanName string, natsTools tools.NATSMethod, wg sync.WaitGroup) {
 	defer wg.Done()
 	ch := make(chan *nats.Msg, 64)
 	fmt.Println("Listening to " + chanName)
@@ -92,14 +96,17 @@ func (s *ScheduleManager) listenForChange(nc *nats.Conn, chanName string, delete
 		map_mess := map[string]string{}
 		json.Unmarshal(msg.Data, &map_mess)
 		str := "new"
-		if delete {
+		if natsTools == tools.NATSMethod(tools.DELETE) {
 			str = "deleted"
 		}
 		fmt.Println("Catching " + str + " workflow... " + map_mess["id"])
-		if delete {
+		switch natsTools {
+		case tools.NATSMethod(tools.DELETE):
 			Executions.DeleteSchedules(map_mess["id"])
-		} else {
+		case tools.NATSMethod(tools.CREATE):
 			s.getNextScheduledWorkflows(1)
+		case tools.NATSMethod(tools.WORKFLOW_EVENT):
+			s.executeWorkflow(map_mess["workflow_id"])
 		}
 	}
 }
@@ -134,6 +141,21 @@ func (s *ScheduleManager) getExecution(from time.Time, to time.Time) (exec_list
 	return
 }
 
+func (s *ScheduleManager) executeWorkflow(wfID string) {
+	res := resources.WorkflowResource{}
+	access := res.GetAccessor(&tools.APIRequest{})
+	if d, code, err := access.LoadOne(wfID); code == 200 && err == nil {
+		eventExec := &workflow_execution.WorkflowExecution{
+			WorkflowID:   d.GetID(),
+			ExecDate:     time.Now(),
+			ExecutionsID: uuid.New().String(),
+			State:        enum.SCHEDULED,
+		}
+		Executions.AddSchedules([]*workflow_execution.WorkflowExecution{eventExec}, s.Logger)
+	}
+
+}
+
 func (s *ScheduleManager) getNextScheduledWorkflows(minutes float64) {
 	start := time.Now().UTC()
 	fmt.Println(s.getExecution(

go.mod

@@ -5,7 +5,7 @@ go 1.23.0
 toolchain go1.24.0
 
 require (
-	cloud.o-forge.io/core/oc-lib v0.0.0-20250808141553-f4b0cf5683de
+	cloud.o-forge.io/core/oc-lib v0.0.0-20260113155325-5cdfc28d2f51
 	github.com/beego/beego v1.12.12
 	github.com/goraz/onion v0.1.3
 	github.com/nats-io/nats.go v1.44.0

go.sum

@@ -1,5 +1,11 @@
 cloud.o-forge.io/core/oc-lib v0.0.0-20250808141553-f4b0cf5683de h1:s47eEnWRCjBMOxbec5ROHztuwu0Zo7MuXgqWizgkiXU=
 cloud.o-forge.io/core/oc-lib v0.0.0-20250808141553-f4b0cf5683de/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260112132629-be770ec763b1 h1:MOllR71ruHvBZK3nxeOAnHa9xjnotnlngMEGZqEBp2g=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260112132629-be770ec763b1/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260112144037-c35b06e0bc3c h1:9lXrj1agE1clFfxOXRrVXi4PEvlAuWKb4z977c2uk4k=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260112144037-c35b06e0bc3c/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260113155325-5cdfc28d2f51 h1:jlSEprNaUBe628uP9a9TrJ16Q5Ej6OxHlAKNtrHrN2o=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260113155325-5cdfc28d2f51/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=