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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.flat;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

import javax.lang.model.element.Modifier;

import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.FieldSpec;
import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.ParameterSpec;
import com.squareup.javapoet.TypeName;

/**
 * @author [email protected] (Marcio Endo)
 */
abstract class ExceptionField {

  private final TypeName recordTypeName;
  private final TypeName typeName;
  private final String name;

  public ExceptionField(TypeName recordTypeName, TypeName typeName, String name) {
    this.recordTypeName = recordTypeName;
    this.typeName = typeName;
    this.name = name;
  }

  static List listOf(List recordMethodList) {
    List list = new ArrayList<>();
    list.add(ParseErrorExceptionField.get());
    return recordMethodList.stream()
        .sequential()
        .map(RecordMethod::exceptionField)
        .collect(Collectors.toCollection(() -> list));
  }

  abstract void constructorBody(CodeBlock.Builder body);

  FieldSpec fieldSpec() {
    return FieldSpec.builder(typeName, name)
        .addModifiers(Modifier.PRIVATE, Modifier.FINAL)
        .build();
  }

  MethodSpec methodSpec() {
    return methodSpecBuilder().build();
  }

  MethodSpec.Builder methodSpecBuilder() {
    return MethodSpec.methodBuilder(name)
        .addModifiers(Modifier.PUBLIC)
        .addStatement("return $L", name)
        .returns(methodSpecTypeName());
  }

  TypeName methodSpecTypeName() {
    return typeName;
  }

  String name() {
    return name;
  }

  ParameterSpec parameterSpec() {
    return ParameterSpec.builder(parameterSpecTypeName(), name)
        .build();
  }

  abstract TypeName parameterSpecTypeName();

  TypeName recordTypeName() {
    return recordTypeName;
  }

  boolean staticFactory() {
    return true;
  }

  TypeName typeName() {
    return typeName;
  }

}