from rest_framework import serializers

from projects.serializers.base_serializers import ProjectReferenceSerializer

from .models import Team


class RelatedTeamSerializer(serializers.ModelSerializer):
    """Less detailed team serializer intended for nested relations"""

    id = serializers.CharField(read_only=True)

    class Meta:
        model = Team
        fields = (
            "id",
            "slug",
        )


class TeamSerializer(RelatedTeamSerializer):
    dateCreated = serializers.DateTimeField(source="created", read_only=True)
    isMember = serializers.SerializerMethodField()
    memberCount = serializers.SerializerMethodField()
    projects = ProjectReferenceSerializer(many=True, read_only=True)

    class Meta(RelatedTeamSerializer.Meta):
        fields = ("dateCreated", "id", "isMember", "memberCount", "slug", "projects")

    def get_isMember(self, obj):
        user = self.context["request"].user
        return obj.members.filter(user=user).exists()

    def get_memberCount(self, obj):
        return obj.members.count()