// ------------------------------------------------------------------------
//   Project atila
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  rkey.go
//   Created by DEV
//   Modified   05/02/2024
//
//   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 crns

import (
	"sync/atomic"
	"time"

)

type (


	Chrono struct {
		started int64
		stopped int64
	}
)


func NewChrono(str bool) *Chrono {
	ch := &Chrono{}
	if str {
		ch.Start()
	}
	return ch
}


func (c *Chrono) Started() time.Time {
	return time.Unix(0,atomic.LoadInt64(&c.started)) }


func (c *Chrono) Stopped() time.Time {
	return time.Unix(0,atomic.LoadInt64(&c.stopped)) }


func (c *Chrono) Elapsed() time.Duration {
	st := atomic.LoadInt64(&c.started)
	if st == 0 {
		return 0
	}
	sp := atomic.LoadInt64(&c.stopped)
	if sp == 0 {
		return time.Now().Sub(time.Unix(0, int64(st)))
	}
	return time.Duration(sp - st)
}


func (c *Chrono) Reset() {
	atomic.StoreInt64(&c.started,0)
	atomic.StoreInt64(&c.stopped,0)
}


func (c *Chrono) Start() (tm time.Time) {
	tm = time.Now()
	atomic.CompareAndSwapInt64(&c.started,0,tm.UnixNano())
	return
}


func (c *Chrono) Stop() (tm time.Time) {
	tm = time.Now()
	atomic.CompareAndSwapInt64(&c.stopped,0,tm.UnixNano())
	return
}


func (c *Chrono) SetTimes(str, stp time.Time) {
	atomic.StoreInt64(&c.started,str.UnixNano())
	atomic.StoreInt64(&c.stopped,str.UnixNano())
}

/*
   ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

   I HAVE NO DESIRE TO WALK ON WATER," SAID SIDDHARTA.
   "LET THE OLD SHRAMANAS SATISFY THEMSELVES WITH SUCH SKILLS.

   SIDDHARTA
   - HERMANN HESSE -

   :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

*/