Class: PricePulse::Tracker

Inherits:
Object
  • Object
show all
Defined in:
lib/price_pulse/tracker.rb

Instance Method Summary collapse

Constructor Details

#initialize(items) ⇒ Tracker

Returns a new instance of Tracker.



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# File 'lib/price_pulse/tracker.rb', line 12

def initialize(items)
  @items = items
end

Instance Method Details

#compare_prices(item_name) ⇒ Object 



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# File 'lib/price_pulse/tracker.rb', line 16

def compare_prices(item_name)
  target_price = @items[item_name]
  return "Item not found." unless target_price

  full_prices = get_prices(item_name)

  # 1. Filter out non-numerical data (like the page title)
  numerical_prices = full_prices.reject { |key, value| key == "Source (Title)" || value.is_a?(String) }

  # 2. Find the best price and shop
  if numerical_prices.empty?
    best_price = target_price
    best_shop = "N/A (No online prices found)"
  else
    best_price = numerical_prices.values.min
    best_shop = numerical_prices.key(best_price)
  end

  report = ["--- Tracking: #{item_name} (Target: $#{target_price}) ---"]
  
  # List all prices, including the live title or errors
  full_prices.each { |shop, price| report << "  - #{shop} price: #{price.is_a?(String) ? price : "$#{price}"}" }

  if best_price < target_price
    report << "  => **DEAL!** Below target price of $#{target_price}"
  else
    report << "  => Price is currently $#{best_price}, waiting for a better deal."
  end
  report << "Best Current Price Found: #{best_price == target_price ? "Target Price" : "$#{best_price}"} at #{best_shop}"
  report.join("\n")
end