First workflow implementation

queue/general_queue.go

@@ -360,8 +360,25 @@ func (q *GeneralQueue) claimNextPendingJob(ctx context.Context) (*ent.GeneralQue
 	return nil, nil
 }
 
+type EnqueueParams struct {
+	WorkflowId string
+}
+
+type EnqueueOption func(p *EnqueueParams)
+
+func WithWorkflowId(id string) EnqueueOption {
+	return func(q *EnqueueParams) {
+		q.WorkflowId = id
+	}
+}
+
 // Enqueue adds a new job to the queue
-func (q *GeneralQueue) Enqueue(ctx context.Context, payload any, maxRetries int, userId int) (*ent.GeneralQueue, error) {
+func (q *GeneralQueue) Enqueue(ctx context.Context, payload any, maxRetries int, userId int, options ...EnqueueOption) (*ent.GeneralQueue, error) {
+	params := EnqueueParams{}
+	for _, option := range options {
+		option(&params)
+	}
+
 	now := time.Now()
 
 	payloadMap, err := StructToMap(payload)
@@ -378,7 +395,8 @@ func (q *GeneralQueue) Enqueue(ctx context.Context, payload any, maxRetries int,
 		SetMaxRetries(maxRetries).
 		SetCreatedAt(now).
 		SetUpdatedAt(now).
-		SetUserID(userId)
+		SetUserID(userId).
+		SetWorkflowID(params.WorkflowId)
 
 	job, err := create.Save(ctx)
 

schema/ent/generalqueue.go

@@ -41,7 +41,9 @@ type GeneralQueue struct {
 	// ProcessedAt holds the value of the "processed_at" field.
 	ProcessedAt time.Time `json:"processed_at,omitempty"`
 	// UserID holds the value of the "user_id" field.
-	UserID       int `json:"user_id,omitempty"`
+	UserID int `json:"user_id,omitempty"`
+	// WorkflowID holds the value of the "workflow_id" field.
+	WorkflowID   string `json:"workflow_id,omitempty"`
 	selectValues sql.SelectValues
 }
 
@@ -54,7 +56,7 @@ func (*GeneralQueue) scanValues(columns []string) ([]any, error) {
 			values[i] = new([]byte)
 		case generalqueue.FieldID, generalqueue.FieldNumberOfTries, generalqueue.FieldMaxRetries, generalqueue.FieldUserID:
 			values[i] = new(sql.NullInt64)
-		case generalqueue.FieldName, generalqueue.FieldStatus, generalqueue.FieldErrorMessage:
+		case generalqueue.FieldName, generalqueue.FieldStatus, generalqueue.FieldErrorMessage, generalqueue.FieldWorkflowID:
 			values[i] = new(sql.NullString)
 		case generalqueue.FieldCreatedAt, generalqueue.FieldUpdatedAt, generalqueue.FieldProcessedAt:
 			values[i] = new(sql.NullTime)
@@ -157,6 +159,12 @@ func (_m *GeneralQueue) assignValues(columns []string, values []any) error {
 			} else if value.Valid {
 				_m.UserID = int(value.Int64)
 			}
+		case generalqueue.FieldWorkflowID:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field workflow_id", values[i])
+			} else if value.Valid {
+				_m.WorkflowID = value.String
+			}
 		default:
 			_m.selectValues.Set(columns[i], values[i])
 		}
@@ -228,6 +236,9 @@ func (_m *GeneralQueue) String() string {
 	builder.WriteString(", ")
 	builder.WriteString("user_id=")
 	builder.WriteString(fmt.Sprintf("%v", _m.UserID))
+	builder.WriteString(", ")
+	builder.WriteString("workflow_id=")
+	builder.WriteString(_m.WorkflowID)
 	builder.WriteByte(')')
 	return builder.String()
 }

schema/ent/generalqueue/generalqueue.go

@@ -37,6 +37,8 @@ const (
 	FieldProcessedAt = "processed_at"
 	// FieldUserID holds the string denoting the user_id field in the database.
 	FieldUserID = "user_id"
+	// FieldWorkflowID holds the string denoting the workflow_id field in the database.
+	FieldWorkflowID = "workflow_id"
 	// Table holds the table name of the generalqueue in the database.
 	Table = "generalQueue"
 )
@@ -56,6 +58,7 @@ var Columns = []string{
 	FieldUpdatedAt,
 	FieldProcessedAt,
 	FieldUserID,
+	FieldWorkflowID,
 }
 
 // ValidColumn reports if the column name is valid (part of the table columns).
@@ -152,3 +155,8 @@ func ByProcessedAt(opts ...sql.OrderTermOption) OrderOption {
 func ByUserID(opts ...sql.OrderTermOption) OrderOption {
 	return sql.OrderByField(FieldUserID, opts...).ToFunc()
 }
+
+// ByWorkflowID orders the results by the workflow_id field.
+func ByWorkflowID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldWorkflowID, opts...).ToFunc()
+}

schema/ent/generalqueue/where.go

@@ -94,6 +94,11 @@ func UserID(v int) predicate.GeneralQueue {
 	return predicate.GeneralQueue(sql.FieldEQ(FieldUserID, v))
 }
 
+// WorkflowID applies equality check predicate on the "workflow_id" field. It's identical to WorkflowIDEQ.
+func WorkflowID(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldEQ(FieldWorkflowID, v))
+}
+
 // NameEQ applies the EQ predicate on the "name" field.
 func NameEQ(v string) predicate.GeneralQueue {
 	return predicate.GeneralQueue(sql.FieldEQ(FieldName, v))
@@ -524,6 +529,81 @@ func UserIDLTE(v int) predicate.GeneralQueue {
 	return predicate.GeneralQueue(sql.FieldLTE(FieldUserID, v))
 }
 
+// WorkflowIDEQ applies the EQ predicate on the "workflow_id" field.
+func WorkflowIDEQ(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldEQ(FieldWorkflowID, v))
+}
+
+// WorkflowIDNEQ applies the NEQ predicate on the "workflow_id" field.
+func WorkflowIDNEQ(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldNEQ(FieldWorkflowID, v))
+}
+
+// WorkflowIDIn applies the In predicate on the "workflow_id" field.
+func WorkflowIDIn(vs ...string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldIn(FieldWorkflowID, vs...))
+}
+
+// WorkflowIDNotIn applies the NotIn predicate on the "workflow_id" field.
+func WorkflowIDNotIn(vs ...string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldNotIn(FieldWorkflowID, vs...))
+}
+
+// WorkflowIDGT applies the GT predicate on the "workflow_id" field.
+func WorkflowIDGT(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldGT(FieldWorkflowID, v))
+}
+
+// WorkflowIDGTE applies the GTE predicate on the "workflow_id" field.
+func WorkflowIDGTE(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldGTE(FieldWorkflowID, v))
+}
+
+// WorkflowIDLT applies the LT predicate on the "workflow_id" field.
+func WorkflowIDLT(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldLT(FieldWorkflowID, v))
+}
+
+// WorkflowIDLTE applies the LTE predicate on the "workflow_id" field.
+func WorkflowIDLTE(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldLTE(FieldWorkflowID, v))
+}
+
+// WorkflowIDContains applies the Contains predicate on the "workflow_id" field.
+func WorkflowIDContains(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldContains(FieldWorkflowID, v))
+}
+
+// WorkflowIDHasPrefix applies the HasPrefix predicate on the "workflow_id" field.
+func WorkflowIDHasPrefix(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldHasPrefix(FieldWorkflowID, v))
+}
+
+// WorkflowIDHasSuffix applies the HasSuffix predicate on the "workflow_id" field.
+func WorkflowIDHasSuffix(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldHasSuffix(FieldWorkflowID, v))
+}
+
+// WorkflowIDIsNil applies the IsNil predicate on the "workflow_id" field.
+func WorkflowIDIsNil() predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldIsNull(FieldWorkflowID))
+}
+
+// WorkflowIDNotNil applies the NotNil predicate on the "workflow_id" field.
+func WorkflowIDNotNil() predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldNotNull(FieldWorkflowID))
+}
+
+// WorkflowIDEqualFold applies the EqualFold predicate on the "workflow_id" field.
+func WorkflowIDEqualFold(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldEqualFold(FieldWorkflowID, v))
+}
+
+// WorkflowIDContainsFold applies the ContainsFold predicate on the "workflow_id" field.
+func WorkflowIDContainsFold(v string) predicate.GeneralQueue {
+	return predicate.GeneralQueue(sql.FieldContainsFold(FieldWorkflowID, v))
+}
+
 // And groups predicates with the AND operator between them.
 func And(predicates ...predicate.GeneralQueue) predicate.GeneralQueue {
 	return predicate.GeneralQueue(sql.AndPredicates(predicates...))

schema/ent/generalqueue_create.go

@@ -124,6 +124,20 @@ func (_c *GeneralQueueCreate) SetUserID(v int) *GeneralQueueCreate {
 	return _c
 }
 
+// SetWorkflowID sets the "workflow_id" field.
+func (_c *GeneralQueueCreate) SetWorkflowID(v string) *GeneralQueueCreate {
+	_c.mutation.SetWorkflowID(v)
+	return _c
+}
+
+// SetNillableWorkflowID sets the "workflow_id" field if the given value is not nil.
+func (_c *GeneralQueueCreate) SetNillableWorkflowID(v *string) *GeneralQueueCreate {
+	if v != nil {
+		_c.SetWorkflowID(*v)
+	}
+	return _c
+}
+
 // Mutation returns the GeneralQueueMutation object of the builder.
 func (_c *GeneralQueueCreate) Mutation() *GeneralQueueMutation {
 	return _c.mutation
@@ -274,6 +288,10 @@ func (_c *GeneralQueueCreate) createSpec() (*GeneralQueue, *sqlgraph.CreateSpec)
 		_spec.SetField(generalqueue.FieldUserID, field.TypeInt, value)
 		_node.UserID = value
 	}
+	if value, ok := _c.mutation.WorkflowID(); ok {
+		_spec.SetField(generalqueue.FieldWorkflowID, field.TypeString, value)
+		_node.WorkflowID = value
+	}
 	return _node, _spec
 }
 

schema/ent/generalqueue_update.go

@@ -217,6 +217,26 @@ func (_u *GeneralQueueUpdate) AddUserID(v int) *GeneralQueueUpdate {
 	return _u
 }
 
+// SetWorkflowID sets the "workflow_id" field.
+func (_u *GeneralQueueUpdate) SetWorkflowID(v string) *GeneralQueueUpdate {
+	_u.mutation.SetWorkflowID(v)
+	return _u
+}
+
+// SetNillableWorkflowID sets the "workflow_id" field if the given value is not nil.
+func (_u *GeneralQueueUpdate) SetNillableWorkflowID(v *string) *GeneralQueueUpdate {
+	if v != nil {
+		_u.SetWorkflowID(*v)
+	}
+	return _u
+}
+
+// ClearWorkflowID clears the value of the "workflow_id" field.
+func (_u *GeneralQueueUpdate) ClearWorkflowID() *GeneralQueueUpdate {
+	_u.mutation.ClearWorkflowID()
+	return _u
+}
+
 // Mutation returns the GeneralQueueMutation object of the builder.
 func (_u *GeneralQueueUpdate) Mutation() *GeneralQueueMutation {
 	return _u.mutation
@@ -328,6 +348,12 @@ func (_u *GeneralQueueUpdate) sqlSave(ctx context.Context) (_node int, err error
 	if value, ok := _u.mutation.AddedUserID(); ok {
 		_spec.AddField(generalqueue.FieldUserID, field.TypeInt, value)
 	}
+	if value, ok := _u.mutation.WorkflowID(); ok {
+		_spec.SetField(generalqueue.FieldWorkflowID, field.TypeString, value)
+	}
+	if _u.mutation.WorkflowIDCleared() {
+		_spec.ClearField(generalqueue.FieldWorkflowID, field.TypeString)
+	}
 	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
 		if _, ok := err.(*sqlgraph.NotFoundError); ok {
 			err = &NotFoundError{generalqueue.Label}
@@ -537,6 +563,26 @@ func (_u *GeneralQueueUpdateOne) AddUserID(v int) *GeneralQueueUpdateOne {
 	return _u
 }
 
+// SetWorkflowID sets the "workflow_id" field.
+func (_u *GeneralQueueUpdateOne) SetWorkflowID(v string) *GeneralQueueUpdateOne {
+	_u.mutation.SetWorkflowID(v)
+	return _u
+}
+
+// SetNillableWorkflowID sets the "workflow_id" field if the given value is not nil.
+func (_u *GeneralQueueUpdateOne) SetNillableWorkflowID(v *string) *GeneralQueueUpdateOne {
+	if v != nil {
+		_u.SetWorkflowID(*v)
+	}
+	return _u
+}
+
+// ClearWorkflowID clears the value of the "workflow_id" field.
+func (_u *GeneralQueueUpdateOne) ClearWorkflowID() *GeneralQueueUpdateOne {
+	_u.mutation.ClearWorkflowID()
+	return _u
+}
+
 // Mutation returns the GeneralQueueMutation object of the builder.
 func (_u *GeneralQueueUpdateOne) Mutation() *GeneralQueueMutation {
 	return _u.mutation
@@ -678,6 +724,12 @@ func (_u *GeneralQueueUpdateOne) sqlSave(ctx context.Context) (_node *GeneralQue
 	if value, ok := _u.mutation.AddedUserID(); ok {
 		_spec.AddField(generalqueue.FieldUserID, field.TypeInt, value)
 	}
+	if value, ok := _u.mutation.WorkflowID(); ok {
+		_spec.SetField(generalqueue.FieldWorkflowID, field.TypeString, value)
+	}
+	if _u.mutation.WorkflowIDCleared() {
+		_spec.ClearField(generalqueue.FieldWorkflowID, field.TypeString)
+	}
 	_node = &GeneralQueue{config: _u.config}
 	_spec.Assign = _node.assignValues
 	_spec.ScanValues = _node.scanValues

schema/ent/migrate/schema.go

@@ -38,6 +38,7 @@ var (
 		{Name: "updated_at", Type: field.TypeTime},
 		{Name: "processed_at", Type: field.TypeTime, Nullable: true},
 		{Name: "user_id", Type: field.TypeInt},
+		{Name: "workflow_id", Type: field.TypeString, Nullable: true},
 	}
 	// GeneralQueueTable holds the schema information for the "generalQueue" table.
 	GeneralQueueTable = &schema.Table{

schema/ent/mutation.go

@@ -576,6 +576,7 @@ type GeneralQueueMutation struct {
 	processed_at       *time.Time
 	user_id            *int
 	adduser_id         *int
+	workflow_id        *string
 	clearedFields      map[string]struct{}
 	done               bool
 	oldValue           func(context.Context) (*GeneralQueue, error)
@@ -1224,6 +1225,55 @@ func (m *GeneralQueueMutation) ResetUserID() {
 	m.adduser_id = nil
 }
 
+// SetWorkflowID sets the "workflow_id" field.
+func (m *GeneralQueueMutation) SetWorkflowID(s string) {
+	m.workflow_id = &s
+}
+
+// WorkflowID returns the value of the "workflow_id" field in the mutation.
+func (m *GeneralQueueMutation) WorkflowID() (r string, exists bool) {
+	v := m.workflow_id
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldWorkflowID returns the old "workflow_id" field's value of the GeneralQueue entity.
+// If the GeneralQueue object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *GeneralQueueMutation) OldWorkflowID(ctx context.Context) (v string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldWorkflowID is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldWorkflowID requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldWorkflowID: %w", err)
+	}
+	return oldValue.WorkflowID, nil
+}
+
+// ClearWorkflowID clears the value of the "workflow_id" field.
+func (m *GeneralQueueMutation) ClearWorkflowID() {
+	m.workflow_id = nil
+	m.clearedFields[generalqueue.FieldWorkflowID] = struct{}{}
+}
+
+// WorkflowIDCleared returns if the "workflow_id" field was cleared in this mutation.
+func (m *GeneralQueueMutation) WorkflowIDCleared() bool {
+	_, ok := m.clearedFields[generalqueue.FieldWorkflowID]
+	return ok
+}
+
+// ResetWorkflowID resets all changes to the "workflow_id" field.
+func (m *GeneralQueueMutation) ResetWorkflowID() {
+	m.workflow_id = nil
+	delete(m.clearedFields, generalqueue.FieldWorkflowID)
+}
+
 // Where appends a list predicates to the GeneralQueueMutation builder.
 func (m *GeneralQueueMutation) Where(ps ...predicate.GeneralQueue) {
 	m.predicates = append(m.predicates, ps...)
@@ -1258,7 +1308,7 @@ func (m *GeneralQueueMutation) Type() string {
 // order to get all numeric fields that were incremented/decremented, call
 // AddedFields().
 func (m *GeneralQueueMutation) Fields() []string {
-	fields := make([]string, 0, 12)
+	fields := make([]string, 0, 13)
 	if m.name != nil {
 		fields = append(fields, generalqueue.FieldName)
 	}
@@ -1295,6 +1345,9 @@ func (m *GeneralQueueMutation) Fields() []string {
 	if m.user_id != nil {
 		fields = append(fields, generalqueue.FieldUserID)
 	}
+	if m.workflow_id != nil {
+		fields = append(fields, generalqueue.FieldWorkflowID)
+	}
 	return fields
 }
 
@@ -1327,6 +1380,8 @@ func (m *GeneralQueueMutation) Field(name string) (ent.Value, bool) {
 		return m.ProcessedAt()
 	case generalqueue.FieldUserID:
 		return m.UserID()
+	case generalqueue.FieldWorkflowID:
+		return m.WorkflowID()
 	}
 	return nil, false
 }
@@ -1360,6 +1415,8 @@ func (m *GeneralQueueMutation) OldField(ctx context.Context, name string) (ent.V
 		return m.OldProcessedAt(ctx)
 	case generalqueue.FieldUserID:
 		return m.OldUserID(ctx)
+	case generalqueue.FieldWorkflowID:
+		return m.OldWorkflowID(ctx)
 	}
 	return nil, fmt.Errorf("unknown GeneralQueue field %s", name)
 }
@@ -1453,6 +1510,13 @@ func (m *GeneralQueueMutation) SetField(name string, value ent.Value) error {
 		}
 		m.SetUserID(v)
 		return nil
+	case generalqueue.FieldWorkflowID:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetWorkflowID(v)
+		return nil
 	}
 	return fmt.Errorf("unknown GeneralQueue field %s", name)
 }
@@ -1534,6 +1598,9 @@ func (m *GeneralQueueMutation) ClearedFields() []string {
 	if m.FieldCleared(generalqueue.FieldProcessedAt) {
 		fields = append(fields, generalqueue.FieldProcessedAt)
 	}
+	if m.FieldCleared(generalqueue.FieldWorkflowID) {
+		fields = append(fields, generalqueue.FieldWorkflowID)
+	}
 	return fields
 }
 
@@ -1560,6 +1627,9 @@ func (m *GeneralQueueMutation) ClearField(name string) error {
 	case generalqueue.FieldProcessedAt:
 		m.ClearProcessedAt()
 		return nil
+	case generalqueue.FieldWorkflowID:
+		m.ClearWorkflowID()
+		return nil
 	}
 	return fmt.Errorf("unknown GeneralQueue nullable field %s", name)
 }
@@ -1604,6 +1674,9 @@ func (m *GeneralQueueMutation) ResetField(name string) error {
 	case generalqueue.FieldUserID:
 		m.ResetUserID()
 		return nil
+	case generalqueue.FieldWorkflowID:
+		m.ResetWorkflowID()
+		return nil
 	}
 	return fmt.Errorf("unknown GeneralQueue field %s", name)
 }

schema/ent/schema/general_queue.go

@@ -25,6 +25,7 @@ func (GeneralQueue) Fields() []ent.Field {
 		field.Time("updated_at"),
 		field.Time("processed_at").Optional(),
 		field.Int("user_id"),
+		field.String("workflow_id").Optional(),
 	}
 }
 

starter/go.mod

@@ -13,19 +13,26 @@ require (
 	maragu.dev/gomponents-htmx v0.6.1
 )
 
+replace git.gorlug.de/code/ersteller => ../
+
 require (
 	ariga.io/atlas v0.32.1-0.20250325101103-175b25e1c1b9 // indirect
 	cloud.google.com/go/compute/metadata v0.9.0 // indirect
 	github.com/agext/levenshtein v1.2.3 // indirect
 	github.com/apparentlymart/go-textseg/v15 v15.0.0 // indirect
 	github.com/bmatcuk/doublestar v1.3.4 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/go-chi/chi/v5 v5.1.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-openapi/inflect v0.19.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/gorilla/context v1.1.1 // indirect
 	github.com/gorilla/mux v1.6.2 // indirect
 	github.com/gorilla/securecookie v1.1.2 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 // indirect
 	github.com/hashicorp/hcl/v2 v2.18.1 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
@@ -38,16 +45,27 @@ require (
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-sqlite3 v1.14.32 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
-	github.com/rogpeppe/go-internal v1.14.1 // indirect
-	github.com/stretchr/testify v1.11.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
 	github.com/zclconf/go-cty v1.14.4 // indirect
 	github.com/zclconf/go-cty-yaml v1.1.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel v1.39.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.15.0 // indirect
+	go.opentelemetry.io/otel/log v0.15.0 // indirect
+	go.opentelemetry.io/otel/metric v1.39.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.39.0 // indirect
+	go.opentelemetry.io/otel/sdk/log v0.15.0 // indirect
+	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
 	golang.org/x/mod v0.29.0 // indirect
 	golang.org/x/net v0.47.0 // indirect
 	golang.org/x/sync v0.18.0 // indirect
 	golang.org/x/sys v0.39.0 // indirect
 	golang.org/x/text v0.31.0 // indirect
 	golang.org/x/tools v0.38.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/grpc v1.77.0 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
 )

starter/go.sum

@@ -4,8 +4,6 @@ cloud.google.com/go/compute/metadata v0.9.0 h1:pDUj4QMoPejqq20dK0Pg2N4yG9zIkYGdB
 cloud.google.com/go/compute/metadata v0.9.0/go.mod h1:E0bWwX5wTnLPedCKqk3pJmVgCBSM6qQI1yTBdEb3C10=
 entgo.io/ent v0.14.5 h1:Rj2WOYJtCkWyFo6a+5wB3EfBRP0rnx1fMk6gGA0UUe4=
 entgo.io/ent v0.14.5/go.mod h1:zTzLmWtPvGpmSwtkaayM2cm5m819NdM7z7tYPq3vN0U=
-git.gorlug.de/code/ersteller v0.0.0-20251115110439-18d05566e2fc h1:oin+Mm/Z9FaR0To40MDGrFsEdK7s7FDaC9vImeyvMdg=
-git.gorlug.de/code/ersteller v0.0.0-20251115110439-18d05566e2fc/go.mod h1:1pFeoQnWLWVcAfSPCq0Fwr+cJ6gqiW475B8Mt2Kuk7Y=
 github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
 github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/agext/levenshtein v1.2.3 h1:YB2fHEn0UJagG8T1rrWknE3ZQzWM06O8AMAatNn7lmo=
@@ -14,15 +12,26 @@ github.com/apparentlymart/go-textseg/v15 v15.0.0 h1:uYvfpb3DyLSCGWnctWKGj857c6ew
 github.com/apparentlymart/go-textseg/v15 v15.0.0/go.mod h1:K8XmNZdhEBkdlyDdvbmmsvpAG721bKi0joRfFdHIWJ4=
 github.com/bmatcuk/doublestar v1.3.4 h1:gPypJ5xD31uhX6Tf54sDPUOBXTqKH4c9aPY66CyQrS0=
 github.com/bmatcuk/doublestar v1.3.4/go.mod h1:wiQtGV+rzVYxB7WIlirSN++5HPtPlXEo9MEoZQC/PmE=
+github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
+github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
 github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-openapi/inflect v0.19.0 h1:9jCH9scKIbHeV9m12SmPilScz6krDxKRasNNSNPXu/4=
 github.com/go-openapi/inflect v0.19.0/go.mod h1:lHpZVlpIQqLyKwJ4N+YSc9hchQy/i12fJykb83CRBH4=
 github.com/go-test/deep v1.0.3 h1:ZrJSEWsXzPOxaZnFteGEfooLba+ju3FYIbOrS+rQd68=
 github.com/go-test/deep v1.0.3/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
@@ -37,6 +46,8 @@ github.com/gorilla/securecookie v1.1.2 h1:YCIWL56dvtr73r6715mJs5ZvhtnY73hBvEF8kX
 github.com/gorilla/securecookie v1.1.2/go.mod h1:NfCASbcHqRSY+3a8tlWJwsQap2VX5pwzwo4h3eOamfo=
 github.com/gorilla/sessions v1.4.0 h1:kpIYOp/oi6MG/p5PgxApU8srsSw9tuFbt46Lt7auzqQ=
 github.com/gorilla/sessions v1.4.0/go.mod h1:FLWm50oby91+hl7p/wRxDth9bWSuk0qVL2emc7lT5ik=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 h1:NmZ1PKzSTQbuGHw9DGPFomqkkLWMC+vZCkfs+FHv1Vg=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3/go.mod h1:zQrxl1YP88HQlA6i9c63DSVPFklWpGX4OWAc9bFuaH4=
 github.com/hashicorp/hcl/v2 v2.18.1 h1:6nxnOJFku1EuSawSD81fuviYUV8DxFr3fp2dUi3ZYSo=
 github.com/hashicorp/hcl/v2 v2.18.1/go.mod h1:ThLC89FV4p9MPW804KVbe/cEXoQ8NZEh+JtMeeGErHE=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
@@ -88,6 +99,28 @@ github.com/zclconf/go-cty v1.14.4 h1:uXXczd9QDGsgu0i/QFR/hzI5NYCHLf6NQw/atrbnhq8
 github.com/zclconf/go-cty v1.14.4/go.mod h1:VvMs5i0vgZdhYawQNq5kePSpLAoz8u1xvZgrPIxfnZE=
 github.com/zclconf/go-cty-yaml v1.1.0 h1:nP+jp0qPHv2IhUVqmQSzjvqAWcObN0KBkUl2rWBdig0=
 github.com/zclconf/go-cty-yaml v1.1.0/go.mod h1:9YLUH4g7lOhVWqUbctnVlZ5KLpg7JAprQNgxSZ1Gyxs=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/otel v1.39.0 h1:8yPrr/S0ND9QEfTfdP9V+SiwT4E0G7Y5MO7p85nis48=
+go.opentelemetry.io/otel v1.39.0/go.mod h1:kLlFTywNWrFyEdH0oj2xK0bFYZtHRYUdv1NklR/tgc8=
+go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.15.0 h1:W+m0g+/6v3pa5PgVf2xoFMi5YtNR06WtS7ve5pcvLtM=
+go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.15.0/go.mod h1:JM31r0GGZ/GU94mX8hN4D8v6e40aFlUECSQ48HaLgHM=
+go.opentelemetry.io/otel/log v0.15.0 h1:0VqVnc3MgyYd7QqNVIldC3dsLFKgazR6P3P3+ypkyDY=
+go.opentelemetry.io/otel/log v0.15.0/go.mod h1:9c/G1zbyZfgu1HmQD7Qj84QMmwTp2QCQsZH1aeoWDE4=
+go.opentelemetry.io/otel/metric v1.39.0 h1:d1UzonvEZriVfpNKEVmHXbdf909uGTOQjA0HF0Ls5Q0=
+go.opentelemetry.io/otel/metric v1.39.0/go.mod h1:jrZSWL33sD7bBxg1xjrqyDjnuzTUB0x1nBERXd7Ftcs=
+go.opentelemetry.io/otel/sdk v1.39.0 h1:nMLYcjVsvdui1B/4FRkwjzoRVsMK8uL/cj0OyhKzt18=
+go.opentelemetry.io/otel/sdk v1.39.0/go.mod h1:vDojkC4/jsTJsE+kh+LXYQlbL8CgrEcwmt1ENZszdJE=
+go.opentelemetry.io/otel/sdk/log v0.15.0 h1:WgMEHOUt5gjJE93yqfqJOkRflApNif84kxoHWS9VVHE=
+go.opentelemetry.io/otel/sdk/log v0.15.0/go.mod h1:qDC/FlKQCXfH5hokGsNg9aUBGMJQsrUyeOiW5u+dKBQ=
+go.opentelemetry.io/otel/sdk/log/logtest v0.14.0 h1:Ijbtz+JKXl8T2MngiwqBlPaHqc4YCaP/i13Qrow6gAM=
+go.opentelemetry.io/otel/sdk/log/logtest v0.14.0/go.mod h1:dCU8aEL6q+L9cYTqcVOk8rM9Tp8WdnHOPLiBgp0SGOA=
+go.opentelemetry.io/otel/sdk/metric v1.39.0 h1:cXMVVFVgsIf2YL6QkRF4Urbr/aMInf+2WKg+sEJTtB8=
+go.opentelemetry.io/otel/sdk/metric v1.39.0/go.mod h1:xq9HEVH7qeX69/JnwEfp6fVq5wosJsY1mt4lLfYdVew=
+go.opentelemetry.io/otel/trace v1.39.0 h1:2d2vfpEDmCJ5zVYz7ijaJdOF59xLomrvj7bjt6/qCJI=
+go.opentelemetry.io/otel/trace v1.39.0/go.mod h1:88w4/PnZSazkGzz/w84VHpQafiU4EtqqlVdxWy+rNOA=
+go.opentelemetry.io/proto/otlp v1.9.0 h1:l706jCMITVouPOqEnii2fIAuO3IVGBRPV5ICjceRb/A=
+go.opentelemetry.io/proto/otlp v1.9.0/go.mod h1:xE+Cx5E/eEHw+ISFkwPLwCZefwVjY+pqKg1qcK03+/4=
 golang.org/x/crypto v0.44.0 h1:A97SsFvM3AIwEEmTBiaxPPTYpDC47w720rdiiUvgoAU=
 golang.org/x/crypto v0.44.0/go.mod h1:013i+Nw79BMiQiMsOPcVCB5ZIJbYkerPrGnOa00tvmc=
 golang.org/x/mod v0.29.0 h1:HV8lRxZC4l2cr3Zq1LvtOsi/ThTgWnUk/y64QSs8GwA=
@@ -105,6 +138,16 @@ golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
 golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
 golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
 golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
+gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
+gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
+google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 h1:fCvbg86sFXwdrl5LgVcTEvNC+2txB5mgROGmRL5mrls=
+google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:+rXWjjaukWZun3mLfjmVnQi18E1AsFbDN9QdJ5YXLto=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 h1:gRkg/vSppuSQoDjxyiGfN4Upv/h/DQmIR10ZU8dh4Ww=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
+google.golang.org/grpc v1.77.0 h1:wVVY6/8cGA6vvffn+wWK5ToddbgdU3d8MNENr4evgXM=
+google.golang.org/grpc v1.77.0/go.mod h1:z0BY1iVj0q8E1uSQCjL9cppRj+gnZjzDnzV0dHhrNig=
+google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
+google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

starter/main.go

@@ -2,13 +2,14 @@ package main
 
 import (
 	"context"
+	"log"
+	"net/http"
+	"time"
+
 	. "git.gorlug.de/code/ersteller"
 	"git.gorlug.de/code/ersteller/starter/ent"
 	"git.gorlug.de/code/ersteller/starter/env"
 	"git.gorlug.de/code/ersteller/starter/routes"
-	"log"
-	"net/http"
-	"time"
 )
 
 func main() {
@@ -17,7 +18,7 @@ func main() {
 	environment := env.LoadEnvironment()
 
 	client, err := ent.Open("sqlite3", environment.DatabaseUrl,
-		ent.Log(log.Println), ent.Debug())
+		ent.Log(log.Println))
 	if err != nil {
 		log.Fatalf("failed opening connection to sqlite: %v", err)
 	}

workflow/workflow.go

@@ -0,0 +1,120 @@
+package workflow
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"git.gorlug.de/code/ersteller"
+	"git.gorlug.de/code/ersteller/queue"
+	"git.gorlug.de/code/ersteller/schema/ent"
+)
+
+type StepHandler interface {
+	Handle(ctx context.Context, currentStep *Step,
+		job queue.GeneralQueueJob) (queue.GeneralQueueHandlerResult, *Step, error)
+}
+
+type StepParams struct {
+	Name        string
+	Identifier  string
+	Description string
+	Client      *ent.Client
+	Processors  int
+	Handler     StepHandler
+	MaxRetries  int
+}
+
+type Step struct {
+	StepParams
+	Queue     *queue.GeneralQueue
+	NextSteps map[string]*Step
+}
+
+func NewStep(params *StepParams) *Step {
+	if params.MaxRetries == 0 {
+		params.MaxRetries = 3
+	}
+	step := Step{
+		StepParams: *params,
+		NextSteps:  make(map[string]*Step),
+	}
+	step.Queue = queue.NewGeneralQueue(params.Identifier,
+		params.Client, step.HandleQueue, params.Processors)
+	return &step
+}
+
+func (s *Step) AddNextStep(step *Step) {
+	s.NextSteps[step.Name] = step
+}
+
+const workflowIdParam = "workflowId"
+
+func (s *Step) Execute(ctx context.Context, payload map[string]interface{}) error {
+	_, err := s.Queue.Enqueue(ctx, payload, s.MaxRetries, -1, queue.WithWorkflowId(payload[workflowIdParam].(string)))
+	if err != nil {
+		return err
+	}
+	err = s.Queue.Start(ctx)
+	return err
+}
+
+func (s *Step) HandleQueue(ctx context.Context, job queue.GeneralQueueJob) (queue.GeneralQueueHandlerResult, error) {
+	result, nextStep, err := s.Handler.Handle(ctx, s, job)
+	if err != nil {
+		return result, err
+	}
+	if nextStep != nil {
+		err = nextStep.Execute(ctx, result.ResultPayload)
+		if err != nil {
+			failurePayload := result.FailurePayload
+			failurePayload["next_step_error"] = fmt.Sprint("Failed to execute next step: ", err.Error())
+			return queue.GeneralQueueHandlerResult{
+				ResultPayload:  result.ResultPayload,
+				FailurePayload: failurePayload,
+			}, err
+		}
+	}
+	return result, nil
+}
+
+type Workflow struct {
+	Name       string
+	Identifier string
+	FirstStep  *Step
+}
+
+func NewWorkflow(name string, identifier string, firstStep *Step) *Workflow {
+	go func() {}()
+	return &Workflow{
+		Name:       name,
+		FirstStep:  firstStep,
+		Identifier: identifier,
+	}
+}
+
+func (w *Workflow) generateId() string {
+	now := time.Now()
+	return w.Identifier + "_" + now.Format("20060102150405")
+}
+
+func NewCronTrigger(ctx context.Context, workflow *Workflow, d time.Duration) {
+	go func() {
+		ticker := time.NewTicker(d)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				err := workflow.FirstStep.Execute(ctx, map[string]interface{}{
+					"workflowId": workflow.generateId(),
+				})
+				if err != nil {
+					ersteller.Error("Failed to execute cron trigger for workflow '", workflow.Name, "': ", err.Error())
+				}
+			}
+		}
+	}()
+}