Implement notifications service with shared messaging and email drivers (#36)

backend/shared/messaging/reliable/durable_settings.go

@@ -0,0 +1,75 @@
+package reliable
+
+const DurableSettingsBlockKey = "durable_delivery"
+
+type DurableTransport string
+
+const (
+	DurableTransportDirect    DurableTransport = "direct"
+	DurableTransportJetStream DurableTransport = "jetstream"
+)
+
+type DurableProvisioningMode string
+
+const (
+	DurableProvisioningHybrid DurableProvisioningMode = "hybrid"
+	DurableProvisioningApp    DurableProvisioningMode = "app"
+	DurableProvisioningOps    DurableProvisioningMode = "ops"
+)
+
+type DurableEnvironment string
+
+const (
+	DurableEnvironmentNonProduction DurableEnvironment = "non-production"
+	DurableEnvironmentProduction    DurableEnvironment = "production"
+)
+
+type DurableDeliverPolicy string
+
+const (
+	DurableDeliverAll DurableDeliverPolicy = "all"
+	DurableDeliverNew DurableDeliverPolicy = "new"
+)
+
+type DurablePublisherSettings struct {
+	Transport       DurableTransport `mapstructure:"transport" yaml:"transport"`
+	DurableSubjects []string         `mapstructure:"durable_subjects" yaml:"durable_subjects"`
+}
+
+type DurableStreamSettings struct {
+	Name        string   `mapstructure:"name" yaml:"name"`
+	Subjects    []string `mapstructure:"subjects" yaml:"subjects"`
+	MaxAgeHours int      `mapstructure:"max_age_hours" yaml:"max_age_hours"`
+	Storage     string   `mapstructure:"storage" yaml:"storage"`
+	Replicas    int      `mapstructure:"replicas" yaml:"replicas"`
+}
+
+type DurableParkingSettings struct {
+	StreamName         string `mapstructure:"stream_name" yaml:"stream_name"`
+	SubjectPrefix      string `mapstructure:"subject_prefix" yaml:"subject_prefix"`
+	MaxOperatorReplays int    `mapstructure:"max_operator_replays" yaml:"max_operator_replays"`
+}
+
+type DurableProvisioningSettings struct {
+	Mode        DurableProvisioningMode `mapstructure:"mode" yaml:"mode"`
+	Environment DurableEnvironment      `mapstructure:"environment" yaml:"environment"`
+}
+
+type DurableConsumerSettings struct {
+	Subject                  string               `mapstructure:"subject" yaml:"subject"`
+	Durable                  string               `mapstructure:"durable" yaml:"durable"`
+	DeliverPolicy            DurableDeliverPolicy `mapstructure:"deliver_policy" yaml:"deliver_policy"`
+	AckWaitSeconds           int                  `mapstructure:"ack_wait_seconds" yaml:"ack_wait_seconds"`
+	MaxDeliver               int                  `mapstructure:"max_deliver" yaml:"max_deliver"`
+	InactiveThresholdSeconds int                  `mapstructure:"inactive_threshold_seconds" yaml:"inactive_threshold_seconds"`
+}
+
+type DurableSettings struct {
+	Enabled      bool                        `mapstructure:"enabled" yaml:"enabled"`
+	Publisher    DurablePublisherSettings    `mapstructure:"publisher" yaml:"publisher"`
+	Stream       DurableStreamSettings       `mapstructure:"stream" yaml:"stream"`
+	Parking      DurableParkingSettings      `mapstructure:"parking" yaml:"parking"`
+	Provisioning DurableProvisioningSettings `mapstructure:"provisioning" yaml:"provisioning"`
+	Consumers    []DurableConsumerSettings   `mapstructure:"consumers" yaml:"consumers"`
+	ServiceName  string                      `mapstructure:"-" yaml:"-"`
+}