#read in a txt x
#change txt input to list x
#take out all punctuations x
#split into words x
#def that can tell what paragraph each word is in
#puts the words into alphabetical order and prints out what paragrah it was in
#def that prints how often each word comes up into a top 10 list
#top 20 list

def open_file(filename): #opens a txt
    file_object = open(filename, "r")
    return file_object

def list_object(file_object):#turns txt into a list
    lists = []
    for word in file_object:
        lists.append(word.replace(",", "").replace(".", ""))
    return lists

def words_object(lists): #split list into words
    words = []
    for word in lists:
        words.extend(word.split())
    return words

def alphab_object(words): #puts the list into a alphabetical order
    words.sort()
    return words

def wordcount_object(words): #finds the top most common words in the list
    count_dict = {}
    for word in words:
        if word in count_dict:
            count_dict[word] +=1
        else:
            count_dict[word] = 1
    sortedValue = sorted(count_dict.items(), key=lambda x: (x[1]))
    return sortedValue



def main():
    try:
        filename = input("Enter name of file: ")
        file_object = open_file(filename)
        lists = list_object(file_object)
        words = words_object(lists)
        words = alphab_object(words)
        sortedValue = wordcount_object(words)
        print("The paragraph index:")
        for word in words:
            print(word)
        print("")
        counterTop10 = -1
        print("The highest 10 counts:")
        while counterTop10 > -11:
            key, value = sortedValue[counterTop10]
            print(f"{key}: {value}")
            counterTop10 -=1
        print("")
        counterTop20 =-1
        print("The highest 20 counts:")
        while counterTop20 > -21:
            key, value = sortedValue[counterTop20]
            print(f"{key}: {value}")
            counterTop20 -=1
    except FileNotFoundError:
        print("Filename " + filename + " not found!")

main ()