#Exercise 1

def GetAnswerWithUnderscores(answer,letters_guessed):
    new_string=''
    for ans in answer:
        if ans in letters_guessed:
            new_string+=ans
        elif ans not in letters_guessed:
            new_string+='_'
    return new_string

answer = GetAnswerWithUnderscores('welcome', 'mel')
print('GetAnswerWithUnderscores #1: expected _el__me, got', answer)
answer = GetAnswerWithUnderscores('quick', 'rstlne')
print('GetAnswerWithUnderscores #2: expected _____, got', answer)

###Exercise 2

def GetWordSeparatedBySpaces(word):
    new_string=''
    for char in word:
        new_string+=char+' '
    return new_string[0:len(new_string)-1]  
answer = GetWordSeparatedBySpaces('plane')
print('GetWordSeparatedBySpaces #1: expected p l a n e, got', answer)
answer = GetWordSeparatedBySpaces('to')
#Don't worry about the hasattr function, the if statement, or what they
#do: it's not required for this Hangman assignment.
if hasattr(answer, 'strip') and answer.strip() == answer:
    text = 'PASS'
else:
    text = 'FAIL'
print('GetWordSeparatedBySpaces #2: expected no spaces at the beginning or end,', text)


###Exercise 3


def IsWinner(answer,letters_guessed):
    new_word=''
    for each_letter in answer:
       if each_letter in letters_guessed:
           new_word+=each_letter
       else:
            return False
    if new_word==answer:
        return True
    else:
        return False
    
answer = IsWinner('plane', 'ranedlp')
print('IsWinner #1: expected True, got', answer)
answer = IsWinner('plane', 'plan')
print('IsWinner #2: expected False, got', answer)


###Exercise 4:


def IsLegalGuess(current_guess,letters_guessed):
        if len(current_guess)!=1:
            print('The letters guessed must not be more than one character long')
            return False
        elif current_guess.isalpha()==False:
            print('Your guess must include only alphabet not numbers and symbols')
            return False
        elif current_guess in letters_guessed:
            print('You cannot repeat the character that you have previously guessed')
            return False
        else:
            return True



answer = IsLegalGuess('g', '')
print('IsLegalGuess #1: expected True, got', answer)
answer = IsLegalGuess('g', 'rstle')
print('IsLegalGuess #1: expected True, got', answer)
answer = IsLegalGuess('bb', 'cat')
print('IsLegalGuess #1: expected False, got', answer)
answer = IsLegalGuess('p', 'yzpr')
print('IsLegalGuess #1: expected False, got', answer)




#Exercise 5


def GetLegalGuess(letters_guessed):#abc
    new_guess=input('guess a letter')
    while IsLegalGuess(new_guess,letters_guessed)==False:
        new_guess=input('guess a letter')
    return new_guess
        

answer=GetLegalGuess('abc')

print('Your guess is',answer,'and it is legal')


###Exercise 6

def IsGuessRevealing(answer, legal_letter_guess):
    if legal_letter_guess in answer:
        return True
    else:
        return False

answer = IsGuessRevealing('welcome', 'c')
print('IsGuessRevealing #1: expected True, got', answer)
answer = IsGuessRevealing('quick', 'z')
print('IsGuessRevealing #1: expected False, got', answer)


# Part 2
#Exercise 2


def GetAllEnglishWords():
    file=open('hangman_english_words.txt')
    new_list=[]
    for each_word in file:
        no_space=each_word.strip()
        new_list.append(no_space)
        
    return new_list

    

answer = GetAllEnglishWords()
new_list = answer
if answer != None and 'voting' in answer:
    text = 'PASS'
else:
    text = 'FAIL'

print('GetAllEnglishWords #1: expected the word voting', text)

if answer != None and 'triage' not in answer:
    text = 'PASS'

else:
    text = 'FAIL'

print('GetAllEnglishWords #2: did not expect triage', text)

#Exercise 3



def GetRandomWord(words):
    import random
    my_index=random.randint(0,len(words)-1)
    any_word=words[my_index]
    return any_word
    

words = ['train', 'plane', 'automobile']

answer = GetRandomWord(words)


print('GetRandomWord #1: expected a random word,', answer in words)


#Exercise 4
def Play(answer):
    import random
    word=random.choice(new_list)
    
    
    word=word.lower()
    strikes=0
    revealed=list(['_']*len(word))
    guessed=[]
    print('You have ',strikes,' strikes.')
    print(' '.join(revealed))
    while strikes<5:
        if '_' not in revealed:
            print('You Won')
            return True
        new_guess=input('enter a letter:')
        if new_guess in guessed:
            print('You have already guessed',new_guess,'. guess again.')
        else:
            guessed.append(new_guess)
            if new_guess in word:
                print('Good guess! Continue.')
                for x in range(0,len(word)):
                    if (word[x])==new_guess:
                        revealed[x]=new_guess
                print(' '.join(revealed))
            else:
                strikes+=1
                print(new_guess,' is not in the word. You have ',strikes,' strike')
    print('You have lost')
    return False

Play(answer)




##Exercise 5

import random
rand_word = random.choice(new_list)

def StartupAndPlay (rand_word):
    
    ask_user = input('Would you like to play again ?')
    if ask_user != 'y':
        return 'Byebye'
    while ask_user == 'y':
        Play(rand_word)
        ask_user = input('Would you like to play again ?')
        if ask_user == 'n':
            break
        else:
            Play(any_word)

StartupAndPlay (rand_word)

#Execise 6
if __name__ == "__main__":
    StartupAndPlay(rand_word)



#Extra credit 1

def GetPlayRecord():
    play_record=[]
    file=open('hangman_play_record.txt','r')
    for each in file:
        for number in each.split(','):
            play_record.append(int(number))
    return play_record
ans = GetPlayRecord()
if ans != None and isinstance(ans[0], int) and isinstance(ans[1], int):
    text = 'PASS'
else:
    text = 'FAIL'
print('GetPlayRecord #1: expected int elements,', text)