service

type AuthnConfig struct {

	// Method is the authentication method that should be enforced (e.g. 'none', 'preshared', 'oidc')
	Method                   string
	*AuthnOIDCConfig         `mapstructure:"oidc"`
	*AuthnPresharedKeyConfig `mapstructure:"preshared"`
}

type AuthnOIDCConfig struct {
	Issuer   string
	Audience string
}

type AuthnPresharedKeyConfig struct {

	// Keys define the preshared keys to verify authn tokens against.
	Keys []string
}

type Config struct {

	// ListObjectsDeadline defines the maximum amount of time to accumulate ListObjects results
	// before the server will respond. This is to protect the server from misuse of the
	// ListObjects endpoints.
	ListObjectsDeadline time.Duration

	// ListObjectsMaxResults defines the maximum number of ListObjects results to accumulate
	// before the server will respond. This is to protect the server from misuse of the
	// ListObjects endpoints.
	ListObjectsMaxResults uint32

	// MaxTuplesPerWrite defines the maximum number of tuples per Write endpoint.
	MaxTuplesPerWrite int

	// MaxTypesPerAuthorizationModel defines the maximum number of type definitions per authorization model for the WriteAuthorizationModel endpoint.
	MaxTypesPerAuthorizationModel int

	// ChangelogHorizonOffset is an offset in minutes from the current time. Changes that occur after this offset will not be included in the response of ReadChanges.
	ChangelogHorizonOffset int

	// ResolveNodeLimit indicates how deeply nested an authorization model can be.
	ResolveNodeLimit uint32

	Datastore  DatastoreConfig
	GRPC       GRPCConfig
	HTTP       HTTPConfig
	Authn      AuthnConfig
	Log        LogConfig
	Playground PlaygroundConfig
	Profiler   ProfilerConfig
}

type DatastoreConfig struct {

	// Engine is the datastore engine to use (e.g. 'memory', 'postgres', 'mysql')
	Engine string
	URI    string

	// MaxCacheSize is the maximum number of cache keys that the storage cache can store before evicting
	// old keys. The storage cache is used to cache query results for various static resources
	// such as type definitions.
	MaxCacheSize int
}

type GRPCConfig struct {
	Addr string
	TLS  TLSConfig
}

type HTTPConfig struct {
	Enabled bool
	Addr    string
	TLS     TLSConfig

	// UpstreamTimeout is the timeout duration for proxying HTTP requests upstream
	// to the grpc endpoint.
	UpstreamTimeout time.Duration

	CORSAllowedOrigins []string `default:"*" split_words:"true"`
	CORSAllowedHeaders []string `default:"*" split_words:"true"`
}

type LogConfig struct {

	// Format is the log format to use in the log output (e.g. 'text' or 'json')
	Format string
}

type PlaygroundConfig struct {
	Enabled bool
	Port    int
}

type ProfilerConfig struct {
	Enabled bool
	Addr    string
}

type TLSConfig struct {
	Enabled  bool
	CertPath string `mapstructure:"cert"`
	KeyPath  string `mapstructure:"key"`
}