from rest_framework import serializers

from apps.sync.models import CitySite


class CitySiteSerializer(serializers.ModelSerializer):
    id = serializers.IntegerField(source="pk", read_only=True)
    # Never echo the outbound city API key back to the browser by default.
    has_api_key = serializers.SerializerMethodField()
    registered_by_name = serializers.CharField(
        source="registered_by.user_name", read_only=True, allow_null=True
    )

    class Meta:
        model = CitySite
        fields = [
            "id",
            "code",
            "name",
            "api_base_url",
            "has_api_key",
            "registered_by",
            "registered_by_name",
            "is_active",
            "last_synced_at",
            "last_sync_status",
            "last_sync_message",
            "created_at",
            "updated_at",
        ]
        read_only_fields = [
            "id",
            "has_api_key",
            "registered_by",
            "registered_by_name",
            "last_synced_at",
            "last_sync_status",
            "last_sync_message",
            "created_at",
            "updated_at",
        ]

    def get_has_api_key(self, obj: CitySite) -> bool:
        return bool(obj.api_key)


class CitySiteWriteSerializer(serializers.ModelSerializer):
    id = serializers.IntegerField(source="pk", read_only=True)

    class Meta:
        model = CitySite
        fields = [
            "id",
            "code",
            "name",
            "api_base_url",
            "api_key",
            "is_active",
        ]
        extra_kwargs = {"api_key": {"write_only": True, "required": False}}