#!/bin/bash

# Funzione per calcolare la media
calculate_mean() {
  local sum=0
  for time in "$@"; do
    sum=$(echo "$sum + $time" | bc)
  done
  echo "scale=2; $sum / $#" | bc
}

# Funzione per calcolare la deviazione standard
calculate_std_dev() {
  local mean=$1
  shift
  local sum=0
  for time in "$@"; do
    sum=$(echo "$sum + ($time - $mean)^2" | bc)
  done
  echo "scale=2; sqrt($sum / $#)" | bc
}

# Esegui 100 test con Bun
bun_times=()
for i in {1..100}; do
  start_time=$(date +%s%3N)  # Ottieni il tempo in millisecondi
  bun run only.js > /dev/null
  end_time=$(date +%s%3N)
  elapsed_time=$((end_time - start_time))
  bun_times+=($elapsed_time)
done

# Calcola la media e deviazione standard per Bun
bun_mean=$(calculate_mean "${bun_times[@]}")
bun_std_dev=$(calculate_std_dev "$bun_mean" "${bun_times[@]}")

# Esegui 100 test con Node
node_times=()
for i in {1..100}; do
  start_time=$(date +%s%3N)
  node only.js > /dev/null
  end_time=$(date +%s%3N)
  elapsed_time=$((end_time - start_time))
  node_times+=($elapsed_time)
done

# Calcola la media e deviazione standard per Node
node_mean=$(calculate_mean "${node_times[@]}")
node_std_dev=$(calculate_std_dev "$node_mean" "${node_times[@]}")

# Stampa i risultati
echo "Bun Execution Results:"
echo "Mean Time (ms): $bun_mean"
echo "Standard Deviation: $bun_std_dev"
echo ""
echo "Node Execution Results:"
echo "Mean Time (ms): $node_mean"
echo "Standard Deviation: $node_std_dev"