// ------------------------------------------------------------------------
//   Project atila
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  bflag_16.go
//   Created by DEV
//   Modified   15/02/2024
//
//   Copyright 2024 activething.com 
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------

package bits

import (
	"math/bits"
)


type BFlags16 uint16



func (f BFlags16) Has ( flag BFlags16) bool {
	return f&flag != 0 }


func (f BFlags16) Add ( flag BFlags16) BFlags16 {
	return f|flag }


func (f BFlags16) AddWithMask ( flag BFlags16, mask BFlags16) BFlags16 {
	return (f&mask) | flag }


func (f BFlags16) Del ( flag BFlags16) BFlags16 {
	return f&^flag }


func (f BFlags16) Invert () BFlags16 {
	return ^f }


func (f BFlags16) Count() int {
	return bits.OnesCount16(uint16(f)) }



func (f BFlags16) Extract() []BFlags16 {
	if f == 0 {
		return []BFlags16{}
	}
	l := make([]BFlags16,0,16)
	c := BFlags16(1)
	for i:=1; i<= 7; i++ {
		if c&f == c {
			l = append(l,c)
		}
		c <<= 1
	}
	return l
}


func (f BFlags16) FlagsToNames (namer func(flags BFlags16) string) []string {
	if f == 0 {
		return []string{}
	}
	l := make([]string,0,16)
	c := BFlags16(1)
	for i:=1; i<= 7; i++ {
		if c&f == c {
			l = append(l,namer(c))
		}
		c <<= 1
	}
	return l
}


func (f BFlags16) NamesToFlags (names []string, flagger func(name string) BFlags16) BFlags16 {
	for _,s := range names {
		f|=flagger(s)
	}
	return f
}