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// Copyright 2024 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::external::language::java::metamodel::project::*;
import meta::external::language::java::factory::project::*;
import meta::external::language::java::factory::*;
import meta::pure::changetoken::*;
import meta::external::language::java::metamodel::*;
import meta::pure::changetoken::cast_generation::*;
import meta::json::*;
import meta::pure::changetoken::cast_generation::collapse::*;
import meta::pure::changetoken::cast_generation::expand::*;

function meta::pure::changetoken::cast_generation::versionsToJson(versions:Versions[1], typeKeyName:String[1]):String[1]
{
  let raw = $versions->toJSONElement([], 100, config(true, true, true, true, $typeKeyName, true));
  let output = $raw->collapse($typeKeyName);
  $output->toCompactJSONString();
}

function meta::pure::changetoken::cast_generation::jsonToVersions(jsonString:String[1], typeKeyName:String[1]):Versions[1]
{
  let raw = $jsonString->parseJSON();
  let input = $raw->expand($typeKeyName);
  $input->fromJSON(Versions, ^JSONDeserializationConfig(typeKeyName=$typeKeyName, failOnUnknownProperties=true))->cast(@Versions)->toOne();
}

function meta::pure::changetoken::cast_generation::generateCastFromVersions(
  alwaysStampAtRootVersion: Boolean[1],
  optionalStampAllVersions: Boolean[1],
  obsoleteJsonAsString: Boolean[1],
  typeKeyName: String[1],
  versionKeyName: String[0..1],
  versions:Versions[1], outputClassName:String[1]):Project[1]
{
  // generated class  
  let class = javaClass(['public'], javaPackage('org.finos.legend.engine.generated.meta.pure.changetoken.cast_generation'), $outputClassName);
  
  newProject()->addClass(
    $class
      ->generateMainUpcast($alwaysStampAtRootVersion, $optionalStampAllVersions, $obsoleteJsonAsString, $typeKeyName, $versionKeyName, $versions)
      ->generateMainDowncast($alwaysStampAtRootVersion, $optionalStampAllVersions, $obsoleteJsonAsString, $typeKeyName, $versionKeyName, $versions)
      ->generateMainVersions($versions)
      ->generateMainUtils()
  );
}

function <> meta::pure::changetoken::cast_generation::objectNode():meta::external::language::java::metamodel::Type[1] { javaMap(javaString(), javaObject()); }
function <> meta::pure::changetoken::cast_generation::arrayNode():meta::external::language::java::metamodel::Type[1] { javaList(javaObject()); }
function <> meta::pure::changetoken::cast_generation::javaRawMap():meta::external::language::java::metamodel::Type[1] { javaClass('java.util.Map'); }
function <> meta::pure::changetoken::cast_generation::AbstractMap_SimpleEntry():meta::external::language::java::metamodel::Type[1] { javaClass('java.util.AbstractMap.SimpleEntry'); }
function <> meta::pure::changetoken::cast_generation::simpleEntry():meta::external::language::java::metamodel::Type[1] { ^ParameterizedType(rawType=AbstractMap_SimpleEntry(), typeArguments=[javaString()->toBoxed(), javaObject()->toBoxed()]); }