ruby_assignment_area_code

area_code_dictionary.rb

city_codes = {
	'taipei' => 100,
	'new york'=> 200,
	'new orleans' => 300,
	'houston' => 400,
	'los angles' => 500,
	'chicago' => 600,
	'washington' => 700,
	'memphis' => 800,
	'london' => 900, 
	'dallas' => 1000
}

# method to display city name
def displayAvailableCity(cities)
	availableCities = ''
	cities.each {
		|key, value| availableCities += key + ', '
	}
	puts availableCities
end

# method to get area code
def getCityCode(city, cities)
	code = 0
	cities.each { |key, value| 
		# puts key == city
		if key == city 
			code = value
			break
		else
			code = -1
		end
	}

	if code == -1
		puts "Your input is INVALID!"
	else
		puts "Your input \"#{city}\" whose code is #{code}"
	end
	
end

def firstQuestion()
	puts "Do you want to check up city code?(Y/N)"
	answer = gets.chomp
	return answer
end



loop do
	answer = firstQuestion()

	if not answer.upcase.include? 'Y'
		puts "Bye!"
		break
	end

	puts "Type in one of these cities above: #{displayAvailableCity(city_codes)}"
	city = gets.chomp
	puts "#{getCityCode(city, city_codes)}"
	#break
	#answer = firstQuestion()

end