package jd

type jsonNull []byte

var _ JsonNode = jsonNull{}

func (n jsonNull) Json(_ ...Option) string {
	return renderJson(n.raw())
}

func (n jsonNull) Yaml(_ ...Option) string {
	return renderJson(n.raw())
}

func (n jsonNull) raw() interface{} {
	return nil
}

func (n jsonNull) Equals(node JsonNode, _ ...Option) bool {
	return n.equals(node, nil)
}

func (n jsonNull) equals(node JsonNode, _ *options) bool {
	switch node.(type) {
	case jsonNull:
		return true
	default:
		return false
	}
}

func (n jsonNull) hashCode(_ *options) [8]byte {
	return hash([]byte{0xFE, 0x73, 0xAB, 0xCC, 0xE6, 0x32, 0xE0, 0x88}) // random bytes
}

func (n jsonNull) Diff(node JsonNode, opts ...Option) Diff {
	o := refine(&options{retain: opts}, nil)
	return n.diff(node, make(Path, 0), o, getPatchStrategy(o))
}

func (n jsonNull) diff(
	node JsonNode,
	path Path,
	opts *options,
	strategy patchStrategy,
) Diff {
	return diff(n, node, path, opts, strategy)
}

func (n jsonNull) Patch(d Diff) (JsonNode, error) {
	return patchAll(n, d)
}

func (n jsonNull) patch(
	pathBehind, pathAhead Path,
	before, oldValues, newValues, after []JsonNode,
	strategy patchStrategy,
) (JsonNode, error) {
	return patch(n, pathBehind, pathAhead, before, oldValues, newValues, after, strategy)
}