#!/bin/bash

# Function to read and validate a non-empty string
read_string_input() {
  local prompt_message="$1"
  local result_var_name="$2"
  local input

  while true; do
    read -p "$prompt_message: " input
    if [[ -n "$input" ]]; then
      eval "$result_var_name=\"$input\""
      break
    else
      echo "Input cannot be empty. Please try again."
    fi
  done
}

# Function to read and validate a positive integer
read_integer_input() {
  local prompt_message="$1"
  local result_var_name="$2"
  local input

  while true; do
    read -p "$prompt_message: " input
    # Check if input is an integer and positive
    if [[ "$input" =~ ^[0-9]+$ ]] && (( input > 0 )); then
      eval "$result_var_name=$input"
      break
    else
      echo "Invalid input. Please enter a positive integer."
    fi
  done
}

echo "Welcome to the interactive script!"

# Get user's name
read_string_input "Please enter your name" USER_NAME

# Get user's age
read_integer_input "Please enter your age" USER_AGE

echo ""
echo "Summary:"
echo "Name: $USER_NAME"
echo "Age: $USER_AGE"

if (( USER_AGE < 18 )); then
  echo "You are a minor."
elif (( USER_AGE >= 18 && USER_AGE < 65 )); then
  echo "You are an adult."
else
  echo "You are a senior."
fi

echo "Thank you for your input!"