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// Copyright 2020 Goldman Sachs
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import meta::pure::dataQuality::*;
import meta::pure::graphFetch::*;

Enum meta::pure::dataQuality::RuleType
{
   StoreDefinition, MappingDefinition, ClassStructure, ClassConstraint, NoInput, InvalidInput
}

Enum meta::pure::dataQuality::EnforcementLevel
{
   Critical, Error, Warn
}

Class meta::pure::dataQuality::Defect
{
   id               : String[0..1];
   externalId       : String[0..1];
   message          : String[0..1];
   enforcementLevel : EnforcementLevel[0..1];
   ruleDefinerPath  : String[1];
   ruleType         : RuleType[1];
   path             : RelativePathNode[*];
}

Class meta::pure::dataQuality::Checked
{
   defects : Defect[*];
   source  : Any[0..1];
   value   : T[0..1];
}

Class meta::pure::dataQuality::RelativePathNode
{
   propertyName : String[1];
   index        : Integer[0..1];
}

function <> meta::pure::dataQuality::checked(collection: T[*]):Checked[*]
{
   fail('Not implemented!');
   $collection->map(e|^Checked(value=$e));
}

function meta::pure::dataQuality::defaultDefectTree():RootGraphFetchTree[1]
{
  #{Defect {id, externalId, message, enforcementLevel, ruleType, ruleDefinerPath, path { propertyName, index }}}#
}

function meta::pure::dataQuality::checked(valueTree: RootGraphFetchTree[1], defectTree: RootGraphFetchTree[1]):RootGraphFetchTree>[1]
{
  checked($valueTree, $defectTree, [])
}

function meta::pure::dataQuality::checked(valueTree: RootGraphFetchTree[1], defectTree: RootGraphFetchTree[1], sourceTree: RootGraphFetchTree[0..1]):RootGraphFetchTree>[1]
{
  let castedClass          = Checked->cast(@Class>);

  let valuePropTree        = ^PropertyGraphFetchTree(
                              property = $castedClass.properties->filter(p | $p.name == 'value')->toOne(),
                              subTrees = $valueTree.subTrees,
                              subType  = $valueTree.class
                            );

  let defectsPropTree      = ^PropertyGraphFetchTree(
                              property = $castedClass.properties->filter(p | $p.name == 'defects')->toOne(),
                              subTrees = $defectTree.subTrees
                            );
  
  let sourcePropTree       = if($sourceTree->isNotEmpty(),
                              | ^PropertyGraphFetchTree(
                                  property = $castedClass.properties->filter(p | $p.name == 'source')->toOne(),
                                  subTrees = $sourceTree.subTrees,
                                  subType = $sourceTree.class
                                );,
                              | []);

  ^RootGraphFetchTree>
  (
    class    = $castedClass,
    subTrees = $defectsPropTree->concatenate($sourcePropTree)->concatenate($valuePropTree)
  );
}