system

type Credential interface {
	Scheme() string
	Value() string
}

type CredentialSupplier func(ctx context.Context) (Credential, error)

type Options interface {
	Logger() *vlog.Logger
}

type Overview struct {
	State
	TenantRefs References `json:"tenantReferences"`
}

type References struct {
	// map of all tenant idents to their latest tenant version
	Identifiers map[string]int64 `json:"identifiers"`
}

type Source interface {
	// Start indicates to the Source that it should prepare for system startup.
	Start(opts Options) error

	// State returns the state of the entire system, used for cache invalidation and sync purposes
	State() (*State, error)

	// Overview returns a the system overview, used for incremental sync of the system's tenants
	Overview() (*Overview, error)

	// TenantOverview returns the overview for the requested tenant
	TenantOverview(ident string) (*TenantOverview, error)

	// GetModule attempts to find the given module by its fqmn, and returns ErrRunnableNotFound if it cannot.
	GetModule(FQMN string) (*tenant.Module, error)

	// Workflows returns the requested workflows for the system.
	Workflows(ident, namespace string, version int64) ([]tenant.Workflow, error)

	// Connections returns the connections needed for the system.
	Connections(ident, namespace string, version int64) ([]tenant.Connection, error)

	// Authentication provides any auth headers or metadata for the system.
	Authentication(ident, namespace string, version int64) (*tenant.Authentication, error)

	// Capabilities provides the tenant's configured capabilities.
	Capabilities(ident, namespace string, version int64) (*capabilities.CapabilityConfig, error)

	// StaticFile is a source of static files for the tenant
	StaticFile(identifier string, tenantVersion int64, path string) ([]byte, error)

	// Queries returns the database queries that should be made available.
	Queries(ident, namespace string, version int64) ([]tenant.DBQuery, error)
}

type State struct {
	SystemVersion int64 `json:"systemVersion"`
}

type TenantOverview struct {
	Identifier string         `json:"identifier"`
	Version    int64          `json:"version"`
	Config     *tenant.Config `json:"config,omitempty"`
}