roughed in limits model that incorporates bandwidth limit specs (#235)

controller/limits/model.go

@@ -0,0 +1,51 @@
+package limits
+
+import "time"
+
+const Unlimited = -1
+
+type Config struct {
+	Environments int
+	Shares       int
+	Bandwidth    *BandwidthConfig
+}
+
+type BandwidthConfig struct {
+	PerAccount     *BandwidthPerPeriod
+	PerEnvironment *BandwidthPerPeriod
+	PerShare       *BandwidthPerPeriod
+}
+
+type BandwidthPerPeriod struct {
+	Period time.Duration
+	Rx     int64
+	Tx     int64
+	Total  int64
+}
+
+func DefaultConfig() *Config {
+	return &Config{
+		Environments: Unlimited,
+		Shares:       Unlimited,
+		Bandwidth: &BandwidthConfig{
+			PerAccount: &BandwidthPerPeriod{
+				Period: 365 * (24 * time.Hour),
+				Rx:     Unlimited,
+				Tx:     Unlimited,
+				Total:  Unlimited,
+			},
+			PerEnvironment: &BandwidthPerPeriod{
+				Period: 365 * (24 * time.Hour),
+				Rx:     Unlimited,
+				Tx:     Unlimited,
+				Total:  Unlimited,
+			},
+			PerShare: &BandwidthPerPeriod{
+				Period: 365 * (24 * time.Hour),
+				Rx:     Unlimited,
+				Tx:     Unlimited,
+				Total:  Unlimited,
+			},
+		},
+	}
+}