add subscription struct (#33)

* add subscription struct

* fix import (cuz no goimports invoked)

* omg

* omg v2

* no pointer

* add subscription in team

* add payment strcut

payment.go

@@ -0,0 +1,8 @@
+package tdproto
+
+type Payment struct {
+	TariffUid       string `json:"tariff_uid"`
+	TeamUid         string `json:"team_uid"`
+	UserUid         string `json:"user_uid"`
+	ConfirmationUrl string `json:"confirmation_url"`
+}

subscription.go

@@ -0,0 +1,19 @@
+package tdproto
+
+import "time"
+
+// Subscription - an entity that signifies the fact
+// of subscribing to the tariff of any team for a certain period
+// (not defined, in the case of the default tariff)
+type Subscription struct {
+	// Subscription id
+	Uid string `json:"uid"`
+	// Subscription activation time
+	Activated *time.Time `json:"activated,omitempty"`
+	// Subscription expiration time
+	Expires *time.Time `json:"expires,omitempty"`
+	// ID of the tariff for which the subscription is valid
+	TariffUid string `json:"tariff_uid,omitempty"`
+	// ID of the user who subscribed
+	UserUid string `json:"user_uid,omitempty"`
+}

team.go

@@ -94,6 +94,9 @@ type Team struct {
 
 	// Team's available tariff by includig archive ones
 	AvailableTariffs []string `json:"available_tariffs,omitempty"`
+
+	// Сurrent team subscription
+	Subscription Subscription `json:"subscription,omitempty"`
 }
 
 // Short team representation. For invites, push notifications, etc. Readonly.