require 'json'

puts "Welcome to the Chrismas list!"

# Settings
filepath = "list.json"

# Load the items from the JSON file (only if it exists)
if File.exist?(filepath)
  serialized_list = File.read(filepath)
  items = JSON.parse(serialized_list, symbolize_names: true)
else
  items = []
end

action = nil

until action == "exit"
  puts "What do you want to do? [add, list, delete, mark, exit]"
  # User can type the action
  action = gets.chomp

  # Perform the action
  case action
  when "add"
    puts "What do you want to add to the list?"
    item = gets.chomp
    items << {name: item, marked: false}
    puts "#{item} has been added to the list"
  when "list"
    if items.empty?
      puts "There is nothing in your list."
    else
      items.each_with_index do |item, index|
        puts "[#{item[:marked] ? "x" : " "}] #{index + 1}: #{item[:name]}"
      end
    end
  when "delete"
    items.each_with_index do |item, index|
      puts "[ ] #{index + 1}: #{item[:name]}"
    end
    puts "Which item do you want to delete?"
    index_to_delete = gets.chomp.to_i - 1
    puts "Are you sure you want to delete #{items[index_to_delete][:name]}? y/n"
    confirmation = gets.chomp
    if confirmation == "y"
      items.delete_at(index_to_delete)
    else
      puts "Okay, #{items[index_to_delete][:name]} is not deleted."
    end
  when "mark"
    items.each_with_index do |item, index|
      puts "[#{item[:marked] ? "x" : " "}] #{index + 1}: #{item[:name]}"
    end
    puts "Which item do you want to mark?"
    index_to_mark = gets.chomp.to_i - 1
    items[index_to_mark][:marked] = true

    # If the user typed the name, we need to do:
    # items.each do |item|
    #   if item[:name] == name_from_the_user
    #     item[:marked] = true
    #     puts "Okay, item was marked"
    #   end
    # end
  when "exit"
    puts "Goodbye! Merry Christmas!"
  end
end

# Save all items in a JSON file
File.open(filepath, 'wb') do |file|
  file.write(JSON.generate(items))
end