interface.rb

require 'csv'
# 1. Greet/Welcome the user to the Christmas List program!
puts "(¯`·._(¯`·._(¯`·._(¯`·._(¯`·.__.·¯) _.·¯)_.·¯)_.·¯)_.·¯)"
puts "(¯`·._(¯`·._  Welcome to the Christmas List!  _.·¯)_.·¯)"
puts "(¯`·._(¯`·._(¯`·._(¯`·._(¯`·.__.·¯) _.·¯)_.·¯)_.·¯)_.·¯)"

options = [
  "list",
  "add",
  "delete",
  "mark",
  "quit"
]

user_input = ""


# part of 7.)
def display_gifts(array_of_gifts)
  array_of_gifts.each_with_index do |gift, index|
    # [x]
    if gift[:marked]
      x = "x"
    else
      x = " "
    end
    # x = gift[:marked] ? "x" : " "

    if gift[:price] <= 20
      budget_type = "£"
    else
      budget_type = "£££"
    end
    # budget_type = gift[:price] <= 20 ? "£" : "£££"

    puts "#{index + 1}. [#{x}] - #{gift[:name]}, #{budget_type}"
  end
end

# part of 13.)
def choose_gift(array_of_gifts)
  display_gifts(array_of_gifts)
  # 14. which one would you like to mark as 'bought'
  puts "What gift would you like to choose? (type the number)"

  # 15. get user input and save into a new variable (convert to integer)
  gift_index = gets.chomp.to_i

  # 16. use the index number to find the correct gift
  array_of_gifts[gift_index - 1]
end

def save_csv(array_of_gifts)
  csv_options = { col_sep: ',', force_quotes: true, quote_char: '"' }
  filepath    = 'gifts.csv'

  CSV.open(filepath, 'wb', csv_options) do |csv|
    # TODO: add gifts to CSV

    csv << ["Name","Price","Marked"]

    array_of_gifts.each do |gift|
      # p [ gift[:name], gift[:price], gift[:marked] ]
      csv << [ gift[:name], gift[:price], gift[:marked] ]

    end
  end
end

def load_csv
  csv_options = { col_sep: ',', quote_char: '"', headers: :first_row }
  filepath    = 'gifts.csv'
  output = []

  CSV.foreach(filepath, csv_options) do |row|

    gift_name = row["Name"]
    gift_price = row["Price"].to_i
    gift_marked = row["Marked"] == "true"

    puts "loaded: #{gift_name} with price #{gift_price}"
    output << { name: gift_name, price: gift_price, marked: gift_marked }
  end
  output
end

# 5. make a new (empty) array which will contain all our christmas gifts

gifts = load_csv

# load data (gifts) from the csv


# 4. create a loop
until user_input == "quit" || user_input == "q"
  # 2. display the options (list|add|delete|mark|quit)
  puts "Choose: #{options.join(" | ")}"
  # 3. get the user input
  user_input = gets.chomp

  # print `clear`
  # TODO: sanitize user input
  if options.include?(user_input)
    # 6. make an if statement that checks if the user typed 'list'
    if user_input == "list"
      puts "The following Items are on your list:"
      # 7. dispaly the list (use each_with_index) to the user
      display_gifts(gifts)
    # 8. expand if statement to check if user input is 'add'
    elsif user_input == "add"
      # 9. ask the user: 'what would you like to add to your Christmas List?'
      puts "What is the name of the gift?"

      # 10. get the user input
      added_gift = gets.chomp.to_s

      # 10.1 ask the user for the gift price
      puts "How much does #{added_gift} cost?"

      # 10.2 get the price of the gift
      gift_price = gets.chomp.to_i

      # 11. push user input into the gifts array
      gifts << {
        name: added_gift,
        price: gift_price,
        marked: false
      }
      # gifts.push(added_gift)

      # 8.5 OPTIONAL: tell the user which gifts he/she has on his/her christmas list
      puts "Your list now contains:"
      display_gifts(gifts)

      # save the change to the csv
      save_csv(gifts)
    # 12. expand if statement and check if user_input is "mark"
    elsif user_input == "mark"
      selected_gift = choose_gift(gifts)

      # 17. change the value of marked to true
      # selected_gift[:marked] = !selected_gift[:marked]
      selected_gift[:marked] = true

    # 18. expand if statement and check if the user_input is "delete"
    elsif user_input == "delete"
      # 19. display current list to the user
      display_gifts(gifts)

      # 20. ask the user 'which gift do you want to choose' (index)
      puts "What gift would you like to delete"

      # 21. get user input (gets.chomp.to_i - 1)
      gift_index = gets.chomp.to_i - 1

      # 22. delete the correct gift (.delete_at(index))
      gifts.delete_at(gift_index)

      # save the change to the csv
      save_csv(gifts)
    end
  else
    puts "Please enter a valid input!"
  end
end