feat: statistics flag, commented some more

internal/statistics/tracker.go

@@ -1,13 +1,14 @@
 package statistics
 
 import (
+	"fmt"
+	"os"
 	"time"
 )
 
 type Tracker struct {
-	start   time.Time
-	steps   uint64
-	Results *Results
+	start time.Time
+	steps uint64
 }
 
 func Track() *Tracker {
@@ -17,7 +18,6 @@ func Track() *Tracker {
 func (t *Tracker) Start() {
 	t.start = time.Now()
 	t.steps = 0
-	t.Results = nil
 }
 
 func (t *Tracker) Step() {
@@ -25,8 +25,10 @@ func (t *Tracker) Step() {
 }
 
 func (t *Tracker) End() {
-	t.Results = &Results{
+	results := Results{
 		StepsTaken:  t.steps,
 		TimeElapsed: uint64(time.Since(t.start).Milliseconds()),
 	}
+
+	fmt.Fprint(os.Stderr, results.String())
 }