pace_calculator.rb

require 'pry'

def seconds_conversion(minutes, seconds)
  minutes = minutes * 60
  total = minutes + seconds
end

puts "------------------------
What would you like to do
------------------------"
puts "1 - Use time and distance to find pace"
puts "2 - Use time and pace to find distance"
puts "3 - Use pace and distance to find time"
user_input = gets.chomp.to_i

if user_input == 1
  puts "Enter time in minutes"
  minutes = gets.chomp.to_i
  puts "Enter time in seconds"
  seconds = gets.chomp.to_i
  total_seconds = seconds_conversion(minutes, seconds)
  puts "Enter distance in kms"
  distance = gets.chomp.to_f
  total = total_seconds / distance
  minutes = total / 60
  total_minutes = minutes.floor
  seconds = minutes % 1
  seconds = seconds * 60
  seconds = seconds.round
  puts "Your pace per kilometre is #{total_minutes} minutes #{seconds} seconds"
elsif user_input == 2
  puts "Enter time in minutes"
  minutes = gets.chomp.to_i
  puts "Enter time in seconds"
  seconds = gets.chomp.to_i
  total_seconds = seconds_conversion(minutes, seconds)
  puts "Enter pace in minutes"
  pace_minutes = gets.chomp.to_i
  puts "Enter pace in seconds"
  pace_seconds = gets.chomp.to_i
  total_pace_seconds = seconds_conversion(pace_minutes, pace_seconds)
  total = total_seconds.to_f / total_pace_seconds
  total = total.round(2)
  puts "You ran a total of #{total} kilometres"
elsif user_input == 3
  puts "Enter pace in minutes"
  pace_minutes = gets.chomp.to_i
  puts "Enter pace in seconds"
  pace_seconds = gets.chomp.to_i
  total_pace_seconds = seconds_conversion(pace_minutes, pace_seconds)
  puts "Enter distance in kms"
  distance = gets.chomp.to_f
  total = total_pace_seconds * distance
  minutes = total / 60
  total_minutes = minutes.floor
  seconds = minutes % 1
  seconds = seconds * 60
  seconds = seconds.round
  puts "The total time of your run is #{total_minutes} minutes #{seconds} seconds"
else
  puts "Error"
end