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// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
// * to you 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 org.apache.juneau.httppart.bean;

import static org.apache.juneau.internal.ClassUtils.*;

import java.lang.reflect.*;

import org.apache.juneau.*;
import org.apache.juneau.http.annotation.*;
import org.apache.juneau.httppart.*;

/**
 * Represents the metadata gathered from a getter method of a class annotated with {@link Response}.
 */
public class ResponseBeanPropertyMeta {

   static ResponseBeanPropertyMeta.Builder create(HttpPartType partType, HttpPartSchema schema, Method m) {
      return new Builder().partType(partType).schema(schema).getter(m);
   }

   static ResponseBeanPropertyMeta.Builder create(HttpPartType partType, Method m) {
      return new Builder().partType(partType).getter(m);
   }

   //-----------------------------------------------------------------------------------------------------------------
   // Instance
   //-----------------------------------------------------------------------------------------------------------------

   private final Method getter;
   private final HttpPartType partType;
   private final HttpPartSerializer serializer;
   private final HttpPartParser parser;
   private final HttpPartSchema schema;

   ResponseBeanPropertyMeta(Builder b, HttpPartSerializer serializer, HttpPartParser parser) {
      this.partType = b.partType;
      this.schema = b.schema;
      this.getter = b.getter;
      this.serializer = schema.getSerializer() == null ? serializer : newInstance(HttpPartSerializer.class, schema.getSerializer(), true, b.ps);
      this.parser = schema.getParser() == null ? parser : newInstance(HttpPartParser.class, schema.getParser(), true, b.ps);
   }

   static class Builder {
      HttpPartType partType;
      HttpPartSchema schema = HttpPartSchema.DEFAULT;
      String name;
      Method getter;
      PropertyStore ps = PropertyStore.DEFAULT;

      Builder name(String value) {
         name = value;
         return this;
      }

      Builder getter(Method value) {
         getter = value;
         return this;
      }

      Builder partType(HttpPartType value) {
         partType = value;
         return this;
      }

      Builder schema(HttpPartSchema value) {
         schema = value;
         return this;
      }

      ResponseBeanPropertyMeta build(HttpPartSerializer serializer, HttpPartParser parser) {
         return new ResponseBeanPropertyMeta(this, serializer, parser);
      }
   }

   /**
    * Returns the HTTP part name for this property (the query parameter name for example).
    *
    * @return The HTTP part name, or <jk>null</jk> if it doesn't have a part name.
    */
   public String getPartName() {
      return schema == null ? null : schema.getName();
   }

   /**
    * Returns the name of the Java method getter that defines this property.
    *
    * @return
    *    The name of the Java method getter that defines this property.
    *    <br>Never <jk>null</jk>.
    */
   public Method getGetter() {
      return getter;
   }

   /**
    * Returns the HTTP part type for this property (query parameter for example).
    *
    * @return
    *    The HTTP part type for this property.
    *    <br>Never <jk>null</jk>.
    */
   public HttpPartType getPartType() {
      return partType;
   }

   /**
    * Returns the serializer to use for serializing the bean property value.
    *
    * @param _default The default serializer to use if not defined on the annotation.
    * @return The serializer to use for serializing the bean property value.
    */
   public HttpPartSerializer getSerializer(HttpPartSerializer _default) {
      return serializer == null ? _default : serializer;
   }

   /**
    * Returns the parser to use for parsing the bean property value.
    *
    * @param _default The default parser to use if not defined on the annotation.
    * @return The parser to use for parsing the bean property value.
    */
   public HttpPartParser getParser(HttpPartParser _default) {
      return parser == null ? _default : parser;
   }

   /**
    * Returns the schema information gathered from annotations on the method and return type.
    *
    * @return
    *    The schema information gathered from annotations on the method and return type.
    *    <br>Never <jk>null</jk>.
    */
   public HttpPartSchema getSchema() {
      return schema;
   }
}