package hashmap

import (
	"474420502.top/eson/structure/sparse_array/array3"
)

type HashCode func(key interface{}) int
type EqualsCode func(k1, k2 interface{}) int

type HashMap struct {
	growfactor int
	table      *array3.Array3

	GetHash  HashCode
	IsEquals EqualsCode
}

type Bucket struct {
}

func HashInt(key interface{}) uint {
	thekey := uint(key.(int))
	hbit := thekey & 0xffffffff
	lbit := (thekey & 0xffffffff00000000) >> 32
	// log.Println(hbit)
	// log.Println(lbit)
	// log.Println()
	return lbit ^ hbit
}

func New() *HashMap {
	hm := &HashMap{}
	hm.growfactor = 2
	hm.table = array3.NewWithCap(hm.growfactor*2, hm.growfactor, hm.growfactor)
	return hm
}

func (hm *HashMap) Put(key, value interface{}) {
	hash := hm.GetHash(key)
	index := hash % hm.table.Cap()
	hm.table.Set(index, value)
}