from rest_framework import serializers

from apps.dobodbi_calendar.models import CalendarOccasions


class CalendarOccasionAdminSerializer(serializers.ModelSerializer):
    dates = serializers.ListField(child=serializers.DictField(), allow_empty=False)

    class Meta:
        model = CalendarOccasions
        fields = [
            "id",
            "title",
            "is_global",
            "occasion_type",
            "dates",
            "is_yearly",
            "event_type",
            "updated_at",
            "created_at",
        ]
        read_only_fields = ["id", "updated_at", "created_at"]

    def validate_dates(self, value):
        cleaned_dates = []

        for index, item in enumerate(value):
            day = str(item.get("day", "")).strip()
            month = str(item.get("month", "")).strip()
            year = str(item.get("year", "")).strip()

            if not day or not month:
                raise serializers.ValidationError(f"Date row {index + 1} must include day and month.")

            cleaned_dates.append({
                "day": day,
                "month": month,
                "year": year,
            })

        return cleaned_dates