/*
 * Just some simple things in a package.
 */

package simple

import "strconv"

// This is essentially private, because it starts with a lower-case letter.
var value int

// This is visible.
var Label string = "Simple"

// This is public, too.  But not its contents, since they're all lc.
type Collection struct {
	left int
	right int
}

// Here are some public methods.
func (c *Collection) Init(l int, r int) {
	c.left = l
	c.right = r
}

func (c *Collection) Swap() {
	c.left, c.right = c.right, c.left
}

func (c *Collection) Move(m int) {
	c.left, c.right = c.left + m, c.right - m
}

// Here's some private functions
func (c *Collection) max() int {
	if c.right > c.left {
		return c.right
	} else {
		return c.left
	}
}

func (c *Collection) min() int {
	if c.right < c.left {
		return c.right
	} else {
		return c.left
	}
}

// A public one that uses the private ones.
func (c *Collection) Sort() {
	c.left, c.right = c.min(), c.max()
}

// Get the information
func (c *Collection) Report() string {
	return Label + " " + strconv.Itoa(c.left) + " " + strconv.Itoa(c.right)
}

// There's no rule against public top-level fuctions
func Version() string {
	return "Simple 1.143"
}