import random

###def main():



def select_characters()-> str:
    jumbled_word=""
    """Allows the user to enter c or v, and outputs an appropriate random consonant or vowel"""
    count =0 #integer called count, used for counting the number of vowels/consonants
    consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"] #creates a list for all consonants
    vowels = ["a", "e", "i", "o", "u"] # creates a list of the vowels
    vowel_number = 0
    consonant_number=0
    print("\n")
    while count<9:#while loop that loops 8 times
        print("Enter c for consonant or v for vowel")#prompts the user to enter either a c (for consonant) and a v (for vowel)
        user_option = input() #creates a variable called user_option whose value is assigned by the user
        if (user_option=="c" or user_option=="C"): #adds a selection statement for if the input is either a c or C
            print("You have ", 8-count, " letters left")
            random_consonant = random.choice(consonants) #gets a random element from the consonants array
            jumbled_word += random_consonant #appends the random consonant obtained to the word
            count = count+1 #count is incremented by 1
            consonant_number=consonant_number+1 #increments the consonant counter variable by 1
        elif (user_option=="v" or user_option=="V"):  #adds a selection statement for if the input is either a v or V (in case that it is not c )
            print("You have ", 8-count, " letters left") #outputs an appropriate message about the remaining letters
            random_vowel = random.choice(vowels) #gets a random element from the vowels array
            jumbled_word += random_vowel #appends the random vowel obtained to the word
            count = count+1 #count is incremented by 1
            vowel_number = vowel_number+1 #increments the vowel counter variable by 1
        else: #adds a selection statement for if the input is neither c nor v
            print("Error, please enter c or v") #ouputs an appropriate error message, indicating that the input is not valid
    print(jumbled_word) #finally, outputs the word generated
    return (jumbled_word)


def dictionary_reader(file_name="words.txt" ):
    """Allows the user to enter the filename, to read the information from the specified file"""
    word_list: list =[] #creates an empty list called word_list
    dictionary = open(file_name, "r") #Opens the file in read mode
    word_list= dictionary.read().split("\n") # reads from the file, to a new line each time
    dictionary.close()# closes the file
    print("|Words have been read|") #outputs a message showing  the words
    return word_list # returns the list of words









def word_lookup(  user_characters: str, word_list: list): #takes arguments of string (jumbled and list
    """This function checks what words can be made from the characters generated"""
    matching_words =[] #list to contain words with which the characters match
    for word in word_list: #for loop which goes through each word in the list
        if len(word)<=9: #selection statement for if the word length is longer than 9 letters
            counter1=0 #creates a variable called counter1
            user_letters= user_characters.split() #list which contains the letters that the user generated
            file_words=list(word_list) #list which contains the words from the text file
            processed_characters =[] #stores the characters which have been checked against the word
            for char in file_words:#for the characters in the file_word list
                if char in user_letters and char not in processed_characters: #checks whether the character is in the letters user generated
                    #and has not been checked against the word
                    if(file_words.count(char)) <=(user_letters.count(char)):#if the character appears in the word
                        #the same number of times, or more in the users string
                        counter1 +=file_words.count(char) # increases count by the number of appearances of the character
                        processed_characters.append(char) #processed character is added to the processed_characters list
            if counter1 == len(word) : #selection statement for if counter1 is equal to the length of word
                matching_words.append(word) #adds the word to the matching_words list
    print("Enter a guess for the longest word you can make !") #prompts the user to enter their guess for the longest word
    guess=input() #creates an input called guess, which takes an input from the user
    for x in matching_words: #for the number of elements in the matching_words list
        if (matching_words[x]==guess): #if guess is equal to any of the elements in the list
            print("Your guess is a match!") #outputs a message indicating a match
            print("\n")
            print("Your score is ", len(guess)) #outputs a message indicating the score (length of the guess word)
        else:
            print("Your guess does not match") #outputs a message indicating the word does not match
            print("\n")
            print("Your score is 0") #outputs a message indicating that the user's score is 0
        print("These are the words that can be created") #outputs a message indicating the words that can be created
        return matching_words #outputs the list of words that can be created





if __name__ == "__main__":
    """Main programs from which other functions can be called"""
    print("Welcome to the Countdown Simulator \nThe aim of the game is to make the longest possible words using the letters given to you !")
    #title message introducing the user to the program
    print("\n") #new line
    print("Enter PLAY to play the game !") #allows the user to enter their option (kind of useless with only one option )
    user_input=input() #creates a variable called user_input which is what the user inputs
    input_check=False #creates a boolean variable called input_check
    file_check=False #creates a boolean variable called file_check
    while (input_check == False):
        #while input_check is false
        if (user_input=="PLAY"):#if the users input is equal to "PLAY"
            input_check=True #sets the value of the boolean input_check as true
            print("Enter the filename for the dictionary (Null input for default)") #prompts the user to enter the filename for the dictionary
            word_list=[] #creates a list called word_list
            file_name=input() # allows the user to input the name of the file
            while(file_check==False): # adds a while loop, with the condition being the boolean value of the file_check variable
                if(file_name==""): #selection statement for is the file_name is empty
                    word_list=dictionary_reader() #allocates the words read from the text file  to the list
                    file_check=True # updates the value of file_check to true
                else:
                    try: #tri catch block
                        word_list=dictionary_reader(file_name) #tries to run the dictionary_reader function with the file_nae argument
                        file_check=True #sets the value of file_check to true
                    except OSError: # in the case of an OSError (internal system error(ie:due to non-existent file))
                         print("Error!, please enter a valid filename") # Promps the user to enter a correct filename
                         file_name=input() #takes another input
            user_word=select_characters() #creates a variable called jumbed_words, which consists of the string from select_characters
            word_lookup(user_word,word_list) #runs the function word_lookup using arguments: jumbled_word and word_list(list of all words)