chain

type Env struct {
	FromService      string
	ContainerID      string
	ContainerExists  bool
	ContainerRunning bool
	SharedNetwork    bool
	TargetHost       string
	TargetPort       int
	WantTLS          bool
	WantHTTP         bool
	HTTPPath         string
}

type Exec func(ctx context.Context, cmd []string) (output string, exitCode int, err error)

type Method string

type Result struct {
	FromService string
	TargetHost  string
	TargetPort  int
	Method      Method
	Steps       []Step
	HardFailAt  string
}

type Runner struct {
	// NativeExec runs inside the dependent container (Option A).
	NativeExec Exec
	// EphemeralExec runs from a same-network probe container (Option B).
	EphemeralExec Exec
	// HasTool reports whether a binary exists in the native context.
	// If nil, tools are assumed present when NativeExec is set.
	HasTool func(ctx context.Context, bin string) bool
	Now     func() time.Time
}

type Status string

type Step struct {
	Name     string
	Status   Status
	Detail   string
	Duration time.Duration
}