from rest_framework import serializers


class StreakSummarySerializer(serializers.Serializer):
    current = serializers.IntegerField()
    longest = serializers.IntegerField()


class UserStreakSerializer(StreakSummarySerializer):
    """زنجیره در /api/user/summary: به‌علاوه‌ی وضعیتی که خانه با آن آتش/در خطر/یخ‌زده را نشان می‌دهد."""
    activeToday = serializers.BooleanField(help_text='امروز (وقتِ تهران) فعالیتی ثبت شده؛ زنجیره امروز روشن است.')
    lost = serializers.IntegerField(
        help_text='طولِ زنجیره‌ای که با نیامدنِ دیروز شکست؛ صفر یعنی چیزی نشکسته. اپ آن را «یخ‌زده» نشان می‌دهد.',
    )


class UserSummaryResponseSerializer(serializers.Serializer):
    userId = serializers.CharField()
    name = serializers.CharField()
    avatar = serializers.CharField()
    gradeId = serializers.IntegerField(allow_null=True)
    xp = serializers.IntegerField()
    coins = serializers.IntegerField()
    streak = UserStreakSerializer()
    subscription = serializers.CharField(allow_null=True)


class StreakCalendarResponseSerializer(serializers.Serializer):
    currentStreak = serializers.IntegerField()
    longestStreak = serializers.IntegerField()
    activeDays = serializers.ListField(child=serializers.DateField())


class LeaderboardEntrySerializer(serializers.Serializer):
    rank = serializers.IntegerField()
    userId = serializers.CharField()
    name = serializers.CharField()
    xpInPeriod = serializers.IntegerField()


class LeaderboardResponseSerializer(serializers.Serializer):
    period = serializers.ChoiceField(choices=['weekly', 'all_time'])
    entries = LeaderboardEntrySerializer(many=True)


class UserHeartsResponseSerializer(serializers.Serializer):
    currentHearts = serializers.IntegerField()
    maxHearts = serializers.IntegerField()
    nextRefillAt = serializers.DateTimeField(allow_null=True)
    # همه‌ی قلب‌ها کی یک‌جا پر می‌شوند (۲۴ ساعت بعد از اولین قلبِ ازدست‌رفته).
    fullRefillAt = serializers.DateTimeField(allow_null=True)
    isUnlimited = serializers.BooleanField()


class CharacterSerializer(serializers.Serializer):
    characterId = serializers.CharField()
    slug = serializers.CharField()
    name = serializers.CharField()
    icon = serializers.CharField()
    unlockXp = serializers.IntegerField()
    unlocked = serializers.BooleanField()
    selected = serializers.BooleanField()


class CharacterListResponseSerializer(serializers.Serializer):
    characters = CharacterSerializer(many=True)


class SelectCharacterRequestSerializer(serializers.Serializer):
    characterId = serializers.CharField()


class SelectCharacterResponseSerializer(serializers.Serializer):
    characterId = serializers.CharField()
    selected = serializers.BooleanField()


class WeeklyReportDaySerializer(serializers.Serializer):
    date = serializers.DateField()
    minutes = serializers.IntegerField(help_text='تخمینی؛ از فاصله‌ی رویدادها، نه زمانِ واقعیِ باز بودنِ اپ.')
    questions = serializers.IntegerField()
    correct = serializers.IntegerField()
    xp = serializers.IntegerField()
    lessons = serializers.IntegerField()
    islands = serializers.IntegerField()
    aiQuestions = serializers.IntegerField()


class WeeklyReportTotalsSerializer(serializers.Serializer):
    minutes = serializers.IntegerField()
    activeDays = serializers.IntegerField()
    questions = serializers.IntegerField()
    correct = serializers.IntegerField()
    xp = serializers.IntegerField()
    lessons = serializers.IntegerField(help_text='درس‌های یکتا؛ تکرارِ یک درس یک بار شمرده می‌شود.')
    islands = serializers.IntegerField(help_text='جزیره‌های یکتا.')
    aiQuestions = serializers.IntegerField()


class WeeklyReportResponseSerializer(serializers.Serializer):
    today = serializers.DateField()
    days = WeeklyReportDaySerializer(many=True, help_text='۷ روزِ آخر تا امروز، قدیمی به جدید.')
    previousDays = WeeklyReportDaySerializer(many=True, help_text='۷ روزِ پیش از آن، قدیمی به جدید.')
    thisWeek = WeeklyReportTotalsSerializer()
    lastWeek = WeeklyReportTotalsSerializer()
    streak = StreakSummarySerializer()