const (
	FeatureCacheExport      = "cache export"
	FeatureCacheImport      = "cache import"
	FeatureDirectPush       = "direct push"
	FeatureFrontendOutline  = "frontend outline"
	FeatureFrontendTargets  = "frontend targets"
	FeatureImageExporter    = "image exporter"
	FeatureInfo             = "info"
	FeatureMultiCacheExport = "multi cache export"
	FeatureMultiPlatform    = "multi-platform"
	FeatureOCIExporter      = "oci exporter"
	FeatureOCILayout        = "oci layout"
	FeatureProvenance       = "provenance"
	FeatureSBOM             = "sbom"
	FeatureSecurityMode     = "security mode"
	FeatureSourceDateEpoch  = "source date epoch"
)

var ErrRequirements = errors.Errorf("missing requirements")

type Backend interface {
	Address() string
	ContainerdAddress() string
	Rootless() bool
	Snapshotter() string
}

type BackendConfig struct {
	Logs       map[string]*bytes.Buffer
	ConfigFile string
}

type ConfigUpdater interface {
	UpdateConfigFile(string) string
}

type Sandbox interface {
	Backend

	Context() context.Context
	Cmd(...string) *exec.Cmd
	PrintLogs(*testing.T)
	ClearLogs()
	NewRegistry() (string, error)
	Value(string) interface{} // chosen matrix value
	Name() string
}

type Test interface {
	Name() string
	Run(t *testing.T, sb Sandbox)
}

type TestOpt func(*testConf)

type Worker interface {
	New(context.Context, *BackendConfig) (Backend, func() error, error)
	Name() string
	Rootless() bool
}