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/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * 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.
 */
package br.com.objectos.io.compiler;

import java.util.List;

import br.com.objectos.code.MethodInfo;
import br.com.objectos.code.SimpleTypeInfo;
import br.com.objectos.io.flat.IsRecord;
import br.com.objectos.io.flat.Result;

import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.CodeBlock.Builder;
import com.squareup.javapoet.ParameterizedTypeName;
import com.squareup.javapoet.TypeName;

/**
 * @author [email protected] (Marcio Endo)
 */
class CollectionRecordMethod extends RecordMethod {

  private CollectionRecordMethod(MethodInfo methodInfo, SimpleTypeInfo recordtypeInfo, TypeName recordTypeName) {
    super(methodInfo, recordtypeInfo, recordTypeName);
  }

  public static CollectionRecordMethod code(MethodInfo methodInfo, SimpleTypeInfo returnTypeInfo) {
    SimpleTypeInfo recordTypeInfo = returnTypeInfo.getTypeParameterInfoStream()
        .findFirst()
        .get()
        .simpleTypeInfo();
    TypeName recordTypeName = recordTypeInfo.typeNameRaw();
    return new CollectionRecordMethod(methodInfo, recordTypeInfo, recordTypeName);
  }

  @Override
  void flatFileWriteTo(CodeBlock.Builder body) {
    body.beginControlFlow("for ($T record : $L)", recordTypeName(), methodInfoFieldName())
        .addStatement("(($T) record).emit(file)", IsRecord.class)
        .endControlFlow();
  }

  @Override
  ExceptionField exceptionField() {
    TypeName recordTypeName = recordTypeName();
    ClassName list = ClassName.get(List.class);
    ParameterizedTypeName listOfRecord = ParameterizedTypeName.get(list, recordTypeName);
    return new CollectionExceptionField(recordTypeName, listOfRecord, methodInfoFieldName());
  }

  @Override
  void parserParseStatementTo(Builder body) {
    body.addStatement("$T<$T<$T>> $L = file.parseList($T.getMatcher(), $T.get())",
        Result.class, List.class,
        recordTypeName(), methodInfoFieldName(),
        recordParserTypeName(), recordParserTypeName());
  }

}