#!/usr/bin/env ruby

class Gecko
  attr_reader :name

  def initialize(name)
    @name = name
    @meals = []
  end

  def eat(prey, quantity, calcium)
    return false unless prey.is_a?(String)

    prey = prey.strip

    return false if prey.empty?
    return false unless quantity.is_a?(Integer) && quantity.positive?
    return false unless calcium == true || calcium == false

    @meals << [prey, quantity, calcium]
    true
  end

  def display_meals
    puts "#{@name} a mangé :"

    @meals.each do |prey, quantity, calcium|
      suffix = calcium ? " (calcium)" : ""
      puts "- #{quantity} #{prey}#{suffix}"
    end

    puts
    puts "Total : #{total_prey} proies"
  end

  def display_last_meal
    puts

    if @meals.empty?
      puts "Aucun repas enregistré."
      return
    end

    puts "Dernier repas :"

    prey, quantity, calcium = @meals.last
    suffix = calcium ? " (calcium)" : ""
    puts "- #{quantity} #{prey}#{suffix}"
  end

  def meal_count
    @meals.length
  end

  def total_prey
    total = 0

    @meals.each do |_prey, quantity, _calcium|
      total += quantity
    end

    total
  end

  def ate?(searched_prey)
    @meals.any? do |prey, _quantity, _calcium|
      prey == searched_prey
    end
  end

  def calcium_meal_count
    @meals.count do |_prey, _quantity, calcium|
      calcium
    end
  end
end

delta = Gecko.new("Delta")

delta.eat("dubia", 2, true)
delta.eat("ver de farine", 3, false)
delta.eat("cloporte", 1, true)

delta.display_meals
delta.display_last_meal

puts
puts "Delta a fait #{delta.meal_count} repas."
puts "Delta a mangé #{delta.total_prey} proies."

puts
puts delta.ate?("dubia")

puts
puts delta.calcium_meal_count

puts
puts delta.name

puts
puts delta.eat("dubia", -2, true) # false
puts delta.eat("dubia", 2, true)  # true