package main

import "fmt"
import rand "math/rand/v2"

/*
import "math"
import "sync"
import rand "math/rand/v2"

*/

type src = *rand.Rand

func generateRandomMapping(r src) map[int]float64 {
	mapping := make(map[int]float64)
	sum := 0.0

	// Consider zero case separately
	p0 := r.Float64()
	mapping[0.0] = p0
	sum += p0

	// Consider successive exponents of 1.5
	l := 1.0
	m := 1.5
	for i := 1; i < 22; i++ {
		l = l * m
		p := r.Float64()
		mapping[int(l)] = p
		sum += p
	}

	for key, value := range mapping {
		mapping[key] = value / sum
	}

	/*
		for i := 0; i <= 1000; i++ {
			if current_probability < 1.0 {
				num_possible_steps := int((1-current_probability)/0.001) + 1
				fmt.Println("num possible steps: %d", num_possible_steps)
				step := float64(r.IntN(num_possible_steps)) * 0.001
				current_probability += step
			}
			mapping[i] = current_probability
		}
	*/
	return mapping
}

func main() {
	fmt.Println("Hello world")

	var r = rand.New(rand.NewPCG(uint64(1), uint64(2)))
	randomMapping := generateRandomMapping(r)
	for i, value := range randomMapping {
		fmt.Printf("%d: %.4f\n", i, value)
	}

}