class GoalOnes:
    "One point for each one"

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Ones ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 1:
                total += 1
        return total

class GoalTwos:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Twos ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 2:
                total += 2
        return total

class GoalThrees:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Threes ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 3:
                total += 3
        return total

class GoalFours:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Fours ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 4:
                total += 4
        return total

class GoalFives:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Fives ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 5:
                total += 5
        return total

class GoalSixes:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Sixes ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            if die.face == 6:
                total += 6
        return total

class GoalThreeOfAKind:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Three of a kind ({potential_score})"

    def score(self, dice):
        counts = {}
        total = 0
        for die in dice:
            total += die.face
            counts[die.face] = counts.get(die.face, 0) + 1
        for c in counts.values():
            if c >= 3:
                return total
        return 0

class GoalFourOfAKind:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Four of a kind ({potential_score})"

    def score(self, dice):
        counts = {}
        total = 0
        for die in dice:
            total += die.face
            counts[die.face] = counts.get(die.face, 0) + 1
        for c in counts.values():
            if c >= 4:
                return total
        return 0

class GoalFullHouse:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Full House ({potential_score})"

    def score(self, dice):
        counts = {}
        for die in dice:
            counts[die.face] = counts.get(die.face, 0) + 1
        values = sorted(counts.values())
        if values == [2, 3]:
            return 25
        return 0

class GoalSmallStraight:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Small Straight ({potential_score})"

    def score(self, dice):
        faces = sorted({die.face for die in dice})
        # check for sequences of length 4: 1-4, 2-5, 3-6
        sequences = [list(range(start, start + 4)) for start in (1, 2, 3)]
        for seq in sequences:
            if all(num in faces for num in seq):
                return 30
        return 0

class GoalLargeStraight:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Large Straight ({potential_score})"

    def score(self, dice):
        faces = sorted({die.face for die in dice})
        if faces == [1, 2, 3, 4, 5] or faces == [2, 3, 4, 5, 6]:
            return 40
        return 0

class GoalYahtzee:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Yahtzee ({potential_score})"

    def score(self, dice):
        first = dice[0].face
        for die in dice:
            if die.face != first:
                return 0
        return 50

class GoalChance:

    def prompt(self, dice):
        potential_score = self.score(dice)
        return f"Chance ({potential_score})"

    def score(self, dice):
        total = 0
        for die in dice:
            total += die.face
        return total