// Package cpu provides CPU stress testing with multiple algorithms and chaos modes.
package cpu

import "time"

// helpers.go provides utility functions for randomization and timing.

func (s *Stresser) randomIntensity() int {
	s.mu.Lock()
	defer s.mu.Unlock()
	return s.rand.Intn(s.config.IntensityMax-s.config.IntensityMin+1) + s.config.IntensityMin
}

func (s *Stresser) determineCPUCount() int {
	if s.config.ChaosEnabled {
		return s.rand.Intn(s.config.MaxCPUs-s.config.MinCPUs+1) + s.config.MinCPUs
	}
	if s.config.Workers > 0 {
		return s.config.Workers
	}
	return s.config.MaxCPUs
}

func (s *Stresser) getRandomMode() Mode {
	return allModes[s.rand.Intn(len(allModes))]
}

func (s *Stresser) sleepWithJitter(minMs, maxMs int) {
	ms := s.rand.Intn(maxMs-minMs+1) + minMs
	time.Sleep(time.Duration(ms) * time.Millisecond)
}