tdl

type Cache interface {
	Get(string) (*CacheItem, error)
	Writer(string) (io.WriteCloser, error)
}

type CacheItem struct {
	io.ReadCloser
	Name string
	Size int
}

type Generator interface {
	fmt.Stringer
	Execute(context.Context, *tdlv1alpha1.Spec) (afero.Fs, error)
}

type Input interface {
	fmt.Stringer
	io.Reader
	MediaType() MediaType
}

type MediaType string

type Meta interface {
	Values() iter.Seq2[string, string]
	Value(string) (string, bool)
}

type OS interface {
	Stdin() Stdin
	Stdout() io.Writer
	Stderr() io.Writer
	Fs() afero.Fs
}

type Output interface {
	fmt.Stringer
	Write(afero.Fs) error
}

type ParseResult struct {
	Inputs []Input
	Output Output
}

type Parser[T any] interface {
	Parse(string) (T, error)
}

type Pipeline[T, V any] interface {
	Execute(context.Context, T) (V, error)
}

type Plugin interface {
	fmt.Stringer
	Meta() Meta
	Supports(Target) bool
	Prepare(context.Context) error
}

type Stdin interface {
	io.Reader
	Stat() (fs.FileInfo, error)
}

type Target interface {
	fmt.Stringer
	Meta() Meta
	Choose(iter.Seq[Plugin]) (Plugin, error)
}

type Tool interface {
	fmt.Stringer
	Execute(context.Context, afero.Fs, []string) (afero.Fs, error)
}