fix(pendingactions): refactor pending actions [EE-7011] (#11780)

api/pending_action.go

@@ -0,0 +1,50 @@
+package portainer
+
+import "github.com/segmentio/encoding/json"
+
+type (
+	PendingActionID int
+	PendingAction   struct {
+		ID         PendingActionID `json:"ID"`
+		EndpointID EndpointID      `json:"EndpointID"`
+		Action     string          `json:"Action"`
+		ActionData any             `json:"ActionData"`
+		CreatedAt  int64           `json:"CreatedAt"`
+	}
+
+	PendingActionHandler interface {
+		Execute(PendingAction, *Endpoint) error
+	}
+)
+
+// MarshalJSON marshals the PendingAction struct to JSON
+// and converts the ActionData field to an embedded json string
+// This makes unmarshalling the ActionData field easier
+func (pa PendingAction) MarshalJSON() ([]byte, error) {
+	// Create a map to hold the marshalled fields
+	data := map[string]any{
+		"ID":         pa.ID,
+		"EndpointID": pa.EndpointID,
+		"Action":     pa.Action,
+		"CreatedAt":  pa.CreatedAt,
+	}
+
+	actionDataBytes, err := json.Marshal(pa.ActionData)
+	if err != nil {
+		return nil, err
+	}
+	data["ActionData"] = string(actionDataBytes)
+
+	// Marshal the map
+	return json.Marshal(data)
+}
+
+// Unmarshal the ActionData field from a string to a specific type.
+func (pa PendingAction) UnmarshallActionData(v any) error {
+	s, ok := pa.ActionData.(string)
+	if !ok {
+		return nil
+	}
+
+	return json.Unmarshal([]byte(s), v)
+}