subscription source realm

1const (
2	SubActive SubStatus = iota
3	SubPastDue
4	SubSuspended
5	SubCancelled
6)

1func Cancel(caller, subID string) int64

1func CreatePlan(caller, name string, pricePerCycle, cycleBlocks int64) string

1func DeactivatePlan(caller, planID string) bool

1func ProcessCycle(subID string) bool

1func Reactivate(subID string, topUp int64) bool

1func Render(path string) string

1func Revenue() int64

1func Subscribe(subscriber, planID string, initialDeposit int64) string

1func Tick(height int64)

1func TopUp(subID string, amount int64) bool

1func NewService(admin string, graceCycles int64) *Service

1type Plan struct {
2	ID            string
3	Name          string
4	PricePerCycle int64
5	CycleBlocks   int64
6	Active        bool
7}

 1type Service struct {
 2	admin         string
 3	plans         map[string]*Plan
 4	subs          map[string]*Subscription
 5	nextPlanSeq   int64
 6	nextSubSeq    int64
 7	currentHeight int64
 8	graceCycles   int64 // missed cycles allowed before suspension
 9	revenue       int64
10}

1type SubStatus int

1type Subscription struct {
2	ID            string
3	Subscriber    string
4	PlanID        string
5	Status        SubStatus
6	NextDueHeight int64
7	MissedCycles  int64
8	Balance       int64 // prepaid credit
9}