Terralego/django-geostore

import jsonschema
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _
from jsonschema.validators import validator_for


def validate_json_schema(value):
    """
    Validate json schema
    """
    try:
        if value:
            # check only if schema defined
            cls = validator_for(value)
            cls.check_schema(value)
    except Exception as e:
        raise ValidationError(message=e.message)

    return value


def validate_json_schema_data(value, schema):
    """
    Validate data according json schema
    """
    try:
        # check result schema
        if value and schema:
            properties = schema.get('properties').keys()
            unexpected_properties = value.keys() - properties
            if unexpected_properties:
                # value key(s) not in expected properties
                raise ValidationError(message=_(f"{unexpected_properties} not in schema properties"))
            jsonschema.validate(value, schema)
    except jsonschema.exceptions.ValidationError as e:
        raise ValidationError(message=e.message)

    return value


def validate_geom_type(layer_geom_type_id, feature_geom_type_id):
    if isinstance(layer_geom_type_id, int):
        if layer_geom_type_id != feature_geom_type_id:
            raise ValidationError(message=_('Geometry type is not the same on the layer'))
    return feature_geom_type_id


def validate_geom(feature_geom):
    if feature_geom.empty:
        raise ValidationError(_('Geometry is empty'))
    if not feature_geom.valid:
        raise ValidationError(_('Geometry is not valid'))
    return feature_geom