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/*
 *      Copyright 2019 The original authors.
 *
 *      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 io.sundr.examples.codegen;

import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import io.sundr.builder.annotations.Buildable;

@Buildable(lazyCollectionInitEnabled = false)
public class Property extends ModifierSupport {

  private final List annotations;
  private final TypeRef typeRef;
  private final String name;
  private final List comments;

  public Property(List annotations, TypeRef typeRef, String name, List comments, int modifiers,
      Map attributes) {
    super(modifiers, attributes);
    this.annotations = annotations;
    this.typeRef = typeRef;
    this.name = name;
    this.comments = comments;
  }

  public List getAnnotations() {
    return annotations;
  }

  public TypeRef getTypeRef() {
    return typeRef;
  }

  public String getName() {
    return name;
  }

  public List getComments() {
    return this.comments;
  }

  public String getNameCapitalized() {
    return Stream.of(name.split("[^a-zA-Z0-9]"))
        .filter(s -> s != null && s.length() > 0)
        .map(v -> Character.toUpperCase(v.charAt(0)) + v.substring(1))
        .collect(Collectors.joining());
  }

  public Set getReferences() {
    Set refs = new LinkedHashSet();

    for (AnnotationRef annotationRef : annotations) {
      refs.addAll(annotationRef.getReferences());
    }

    if (typeRef instanceof ClassRef) {
      ClassRef classRef = (ClassRef) typeRef;
      refs.addAll(classRef.getReferences());
    }
    for (AnnotationRef a : getAnnotations()) {
      refs.addAll(a.getClassRef().getReferences());
    }

    if (getAttributes().containsKey(ALSO_IMPORT)) {
      Object obj = getAttributes().get(ALSO_IMPORT);
      if (obj instanceof ClassRef) {
        refs.add((ClassRef) obj);
      } else if (obj instanceof Collection) {
        refs.addAll((Collection) obj);
      }
    }
    return refs;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o)
      return true;
    if (o == null || getClass() != o.getClass())
      return false;

    Property property = (Property) o;

    if (typeRef != null ? !typeRef.equals(property.typeRef) : property.typeRef != null)
      return false;
    return name != null ? name.equals(property.name) : property.name == null;

  }

  @Override
  public int hashCode() {
    int result = typeRef != null ? typeRef.hashCode() : 0;
    result = 31 * result + (name != null ? name.hashCode() : 0);
    return result;
  }

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();

    if (comments != null && !comments.isEmpty()) {
      sb.append(comments.stream().collect(Collectors.joining(NEWLINE)));
    }
    if (isPublic()) {
      sb.append(PUBLIC).append(SPACE);
    } else if (isProtected()) {
      sb.append(PROTECTED).append(SPACE);
    } else if (isPrivate()) {
      sb.append(PRIVATE).append(SPACE);
    }

    if (isStatic()) {
      sb.append(STATIC).append(SPACE);
    }

    if (isFinal()) {
      sb.append(FINAL).append(SPACE);
    }

    sb.append(typeRef).append(SPACE);
    sb.append(name);

    return sb.toString();
  }
}