add sets up

models/common/pricing/interfaces.go

@@ -9,7 +9,8 @@ import (
 type PricedItemITF interface {
 	GetID() string
 	GetType() tools.DataType
-	IsPurchased() bool
+	IsPurchasable() bool
+	IsBooked() bool
 	GetCreatorID() string
 	GetLocationStart() *time.Time
 	SetLocationStart(start time.Time)

models/common/pricing/pricing_profile.go

@@ -6,7 +6,8 @@ import (
 
 type PricingProfileITF interface {
 	GetPrice(quantity float64, val float64, start time.Time, end time.Time, params ...string) (float64, error)
-	IsPurchased() bool
+	IsPurchasable() bool
+	IsBooked() bool
 	GetOverrideStrategyValue() int
 }
 

models/common/pricing/pricing_strategy.go

@@ -7,21 +7,65 @@ import (
 	"time"
 )
 
+type BillingStrategy int // BAM BAM
+
+// should except... on
+const (
+	BILL_ONCE BillingStrategy = iota // is a permanent buying ( predictible )
+	BILL_PER_WEEK
+	BILL_PER_MONTH
+	BILL_PER_YEAR
+)
+
+func (t BillingStrategy) IsBillingStrategyAllowed(bs int) (BillingStrategy, bool) {
+	switch t {
+	case BILL_ONCE:
+		return BILL_ONCE, bs == 0
+	case BILL_PER_WEEK:
+	case BILL_PER_MONTH:
+	case BILL_PER_YEAR:
+		return t, bs != 0
+	}
+	return t, false
+}
+
+func (t BillingStrategy) String() string {
+	return [...]string{"BILL_ONCE", "BILL_PER_WEEK", "BILL_PER_MONTH", "BILL_PER_YEAR"}[t]
+}
+
+func BillingStrategyList() []BillingStrategy {
+	return []BillingStrategy{BILL_ONCE, BILL_PER_WEEK, BILL_PER_MONTH, BILL_PER_YEAR}
+}
+
 type BuyingStrategy int
 
 // should except... on
 const (
-	UNLIMITED BuyingStrategy = iota
-	SUBSCRIPTION
-	PAY_PER_USE
+	PERMANENT              BuyingStrategy = iota // is a permanent buying ( predictible )
+	UNDEFINED_SUBSCRIPTION                       // a endless subscription ( unpredictible )
+	SUBSCRIPTION                                 // a defined subscription ( predictible )
+	// PAY_PER_USE                                  // per request. ( unpredictible )
 )
 
 func (t BuyingStrategy) String() string {
-	return [...]string{"UNLIMITED", "SUBSCRIPTION", "PAY PER USE"}[t]
+	return [...]string{"PERMANENT", "UNDEFINED_SUBSCRIPTION", "SUBSCRIPTION"}[t]
+}
+
+func (t BuyingStrategy) IsBillingStrategyAllowed(bs BillingStrategy) (BillingStrategy, bool) {
+	switch t {
+	case PERMANENT:
+		return BILL_ONCE, bs == BILL_ONCE
+	case UNDEFINED_SUBSCRIPTION:
+		return BILL_PER_MONTH, bs != BILL_ONCE
+	case SUBSCRIPTION:
+		/*case PAY_PER_USE:
+		return bs, true*/
+	}
+	return bs, false
 }
 
 func BuyingStrategyList() []BuyingStrategy {
-	return []BuyingStrategy{UNLIMITED, SUBSCRIPTION, PAY_PER_USE}
+	return []BuyingStrategy{PERMANENT, UNDEFINED_SUBSCRIPTION, SUBSCRIPTION}
 }
 
 type Strategy interface {
@@ -118,7 +162,7 @@ type PricingStrategy[T Strategy] struct {
 func (p PricingStrategy[T]) GetPrice(amountOfData float64, bookingTimeDuration float64, start time.Time, end *time.Time) (float64, error) {
 	if p.BuyingStrategy == SUBSCRIPTION {
 		return BookingEstimation(p.GetTimePricingStrategy(), p.Price*float64(amountOfData), bookingTimeDuration, start, end)
-	} else if p.BuyingStrategy == UNLIMITED {
+	} else if p.BuyingStrategy == PERMANENT {
 		return p.Price, nil
 	}
 	return p.Price * float64(amountOfData), nil

models/common/pricing/tests/pricing_test.go

@@ -15,9 +15,9 @@ func (d DummyStrategy) GetStrategy() string   { return "DUMMY" }
 func (d DummyStrategy) GetStrategyValue() int { return int(d) }
 
 func TestBuyingStrategy_String(t *testing.T) {
-	assert.Equal(t, "UNLIMITED", pricing.UNLIMITED.String())
+	assert.Equal(t, "UNLIMITED", pricing.PERMANENT.String())
 	assert.Equal(t, "SUBSCRIPTION", pricing.SUBSCRIPTION.String())
-	assert.Equal(t, "PAY PER USE", pricing.PAY_PER_USE.String())
+	//assert.Equal(t, "PAY PER USE", pricing.PAY_PER_USE.String())
 }
 
 func TestBuyingStrategyList(t *testing.T) {
@@ -116,13 +116,13 @@ func TestPricingStrategy_GetPrice(t *testing.T) {
 	assert.True(t, p > 0)
 
 	// UNLIMITED case
-	ps.BuyingStrategy = pricing.UNLIMITED
+	ps.BuyingStrategy = pricing.PERMANENT
 	p, err = ps.GetPrice(10, 0, start, &end)
 	assert.NoError(t, err)
 	assert.Equal(t, 5.0, p)
 
 	// PAY_PER_USE case
-	ps.BuyingStrategy = pricing.PAY_PER_USE
+	//ps.BuyingStrategy = pricing.PAY_PER_USE
 	p, err = ps.GetPrice(3, 0, start, &end)
 	assert.NoError(t, err)
 	assert.Equal(t, 15.0, p)