"""
Authors: Sohie Lee, Peter Mawhorter
Consulted:
Date: 2023-10-9
Purpose: Lab 6 for loops with strings practice solutions.
"""


def betterStarify(word):
    """
    Returns a string with all of the letters from the given word, and
    with additional '*' characters inserted between them.
    """
    result = ''  # start with a blank result
    for letter in word[:-1]:  # go through each letter, except the last one
        result += letter  # add this letter to our result
        result += '*'  # add a star
    result += word[-1]  # add the last letter of the word as well
    return result  # return our result


# Note: Here's another implementation of betterStarify:
def betterStarify(word):
    """
    Returns a string with all of the letters from the given word, and
    with additional '*' characters inserted between them.
    """
    result = ''  # start with a blank result
    for letter in word:  # go through all letters
        result += letter + '*'  # add this letter and a star to our result
    return result[:-1]  # return result, minus final star


def isVowel(s):
    """
    Returns True if s is a vowel; false otherwise.
    """
    return len(s) == 1 and s.lower() in 'aeiou'


def hasDoubleVowel(word):
    """
    Returns True if the word has a double-letter which is a vowel, and
    False otherwise.
    """
    for i in range(len(word) - 1): # the -1 here stops early
        this = word[i]
        following = word[i + 1]
        if isVowel(this) and this == following:
            return True

    return False


import random


def starTime():
    """returns True 20% of the time; False otherwise.
    Note: random.random() returns a random number between 0 and 1
    """
    return random.random() > 0.80


def starryRow(length):
    """
    Generates a row of 'length' dashes, but with some stars mixed in:
    each dash will become a star instead if `starTime` return True.
    """
    result = ''  # start with a blank result
    for i in range(length):  # iterate 'length' times
        if starTime():  # check if this one should be a star
            result += '*'  # add a star
        else:
            result += '-'  # otherwise add a dash
    return result  # return our result


def starrySky(width, height):
    """
    Returns a multi-line width x height starry sky string.
    """
    result = ''  # empty result
    for row in range(height):
        result += starryRow(width)  # add a row
        result += '\n'  # add a newline
    return result  # return our result


def funnyVoice(text):
    """
    Returns a new string that's the same as the given text, except that
    each letter is randomly either capitalized or lower-cased, with a 50%
    chance of either.
    """
    result = ''  # empty result
    for letter in text:  # copy each letter
        if random.random() < 0.5:  # A 50/50 chance, since random() is 0-1
            result += letter.lower()  # make it lowercase
        else:
            result += letter.upper()  # make it uppercase

    return result


# This code is for testing things
if __name__ == "__main__":
    print('Testing betterStarify')
    print(betterStarify('OMG'), "# should be O*M*G")
    print(betterStarify('hello'), "# should be h*e*l*l*o")
    print('---')
    print('Testing hasDoubleVowel')
    print(hasDoubleVowel('eel'), "# should be True for 'eel'")
    print(hasDoubleVowel('pool'), "# should be True for 'pool'")
    print(hasDoubleVowel('breadroot'), "# should be True for 'breadroot'")
    print(hasDoubleVowel('kelp'), "# should be False for 'kelp'")
    print(hasDoubleVowel('feather'), "# should be False for 'feather'")
    print(hasDoubleVowel('knight'), "# should be False for 'knight'")
    print(hasDoubleVowel('oreo'), "# should be False for 'oreo'")
    print('---')
    print('Testing starryRow')
    print(starryRow(10), "# should have 10 characters")
    print(starryRow(10), "# should be same length")
    print(starryRow(10))
    print('---')
    print('Testing starrySky')
    print(starrySky(10, 10))
    print(starrySky(15, 12))
    print('---')
    print('Testing funnyVoice')
    print(funnyVoice('hello'))
    print(funnyVoice('SpongeBob SquarePants'))
    print('---')