nufika.rb

questions = [
  {"text" => "Hlavni mesto San Marina?",
    "answers"  => ["Torino", "San Marino", "Vatikan", "Terst"],
    "correct"  => 1},

  {"text" => "Kdy byl upalen mistr Jan Hus?",
    "answers"  => ["6.7.1415", "6.6.1414", "6.8.1415", "5.7.1415"],
    "correct"  => 0},

  {"text" => "Respektovani jineho presvedceni, jinych nazoru je:",
    "answers"  => ["Ochota", "Tolerance", "Ucta", "Duvera"],
    "correct"  => 1},

  {"text" => "Telefoni cislo na Hasice je?",
    "answers"  => ["150", "155", "156", "158"],
    "correct"  => 0},

  {"text" => "Ktere z nasledujicich slov patri do spisovne cestiny?",
    "answers"  => ["sprtat", "vyhecovat", "unyly", "cimra"],
    "correct"  => 2},

  {"text" => "Ktery z nasledujicich jazyku pouziva AZBUKU?",
    "answers"  => ["Bulharstina", "Litevstina", "Rectina", "Rumunstina"],
    "correct"  => 0},

  {"text" => "Ktere z nasledujicich slov cteme stejne jako piseme?",
    "answers"  => ["Dialog", "Exhalace", "Pointa", "Atase"],
    "correct"  => 3},

  {"text" => "Jak se jmenoval vlastnim jmenem V.I.Lenin?",
    "answers"  => ["Putin", "Rasputin", "Uljanov", "Onegin"],
    "correct"  => 2},

  {"text" => "Jak se jmenovala babicka Bozeny Nemcove?",
    "answers"  => ["Palkova", "Pankova", "Patkova", "Nemcova"],
    "correct"  => 1}
]




VALUES = ["a", "b", "c", "d"]


def quiz(questions)
  questions.inject(0) { |score, question| score + solve_question(question) }  
end

# Prints question and options, reads the user input
# and returns if the answer was correct
def solve_question(question)
  # print options
  puts question["text"] + "\n" + format_answers(question["answers"])
  # read answer until valid
  return evaluate_answer(question, gets.strip.downcase)
  # once answer is valid return it
end

def format_answers(answers)
  VALUES.map { |a| "#{a}) " }.zip(answers).map { |pair| pair[0] + pair[1] }.join("\n")
  # answers.each_with_index { |a, i| puts "#{VALUES[i]}) #{a}" }
end

def evaluate_answer(question, answer)
   correct_answer?(question, answer) ? print_correct : handle_incorrect(question, answer)
end

def correct_answer?(question, answer)
  VALUES.index(answer) == question["correct"]
end

def handle_incorrect(question, answer)
  VALUES.index(answer) ? print_incorrect(question) : wrong_format(question)
end

def print_correct
  puts "Spravne!" or return 1
end

def print_incorrect(question)
  puts "Spatne, spravna odpoved je #{question["answers"][question["correct"]]}" or return 0
end

def wrong_format(question)
  puts "Spatny format, odpovezte prosim a,b,c nebo d" or return solve_question(question)
end


score = quiz(questions)
# print score for quiz
puts "Ziskali jste #{score} bodu z 9"