package domain64

type Domain64 struct {
	// The TLD is FF
	TLD uint8
	// The Domain is FFFFFF, so the uint16 is the closest we'll get
	Domain uint16
	// Subdomains are FF
	Subdomain uint8
	// Paths are, again, FFFFFF
	Path uint16
}

/*
```mermaid
packet-beta
0-7: "FF | TLD"
8-31: "FFFFFF | Domain"
32-39: "FF | Subdomain"
40-63: "FFFFFF | Path"
```
*/
const SHIFT_TLD = (64 - 8)
const SHIFT_DOMAIN = (64 - (8 + 24))
const SHIFT_SUBDOMAIN = (64 - (8 + 24 + 8))
const SHIFT_PATH = (64 - (8 + 24 + 8 + 24))

const MASK_TLD = 0xFF0000000000000
const MASK_DOMAIN = 0x00FFFFFF00000000
const MASK_SUBDOMAIN = 0x00000000FF000000
const MASK_PATH = 0x0000000000FFFFFF

func (d64 Domain64) ToInt64() int64 {
	var result int64 = 0
	result = result | (int64(d64.TLD) << SHIFT_TLD)
	result = result | (int64(d64.Domain) << SHIFT_DOMAIN)
	result = result | (int64(d64.Subdomain) << SHIFT_SUBDOMAIN)
	result = result | (int64(d64.Path) << SHIFT_PATH)
	return result
}

func IntToDomain64(i int64) Domain64 {
	d64 := Domain64{}

	d64.TLD = uint8((i & MASK_TLD) >> SHIFT_TLD)
	d64.Domain = uint16((i & MASK_DOMAIN) >> SHIFT_DOMAIN)
	d64.Subdomain = uint8((i & MASK_SUBDOMAIN) >> SHIFT_SUBDOMAIN)
	d64.Path = uint16(i & MASK_PATH)
	return d64
}