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:
    "Two points for each two"

    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:
    "Three points for each three"

    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:
    "Four points for each four"

    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:
    "Five points for each five"

    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:
    "Six points for each six"

    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:
    "Sum all dice if there are at least three of the same face"

    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:
            counts[die.face] = counts.get(die.face, 0) + 1
            total += die.face
        for cnt in counts.values():
            if cnt >= 3:
                return total
        return 0


class GoalFourOfAKind:
    "Sum all dice if there are at least four of the same face"

    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:
            counts[die.face] = counts.get(die.face, 0) + 1
            total += die.face
        for cnt in counts.values():
            if cnt >= 4:
                return total
        return 0


class GoalFullHouse:
    "Fixed score when three of one face and two of another are present"

    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())
        # Full house is a 2 and a 3
        if values == [2, 3]:
            return 25
        return 0


class GoalSmallStraight:
    "Fixed score for any run of four consecutive face values"

    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 any sequence of length 4
        runs = [faces[i:i+4] for i in range(len(faces) - 3)]
        for run in runs:
            if run == list(range(run[0], run[0] + 4)):
                return 30
        return 0


class GoalLargeStraight:
    "Fixed score for a run of five consecutive face values"

    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 == list(range(1, 6)) or faces == list(range(2, 7)):
            return 40
        return 0


class GoalYahtzee:
    "Fixed score for five of a kind (Yahtzee)"

    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:
    "Sum of all dice (always available)"

    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