/*
 * 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.marshaller;

import java.io.*;
import java.lang.reflect.*;
import java.nio.charset.*;

import org.apache.juneau.*;
import org.apache.juneau.csv.*;
import org.apache.juneau.parser.*;
import org.apache.juneau.serializer.*;

/**
 * A pairing of a {@link CsvSerializer} and {@link CsvParser} into a single class with convenience read/write methods.
 *
 * <h5 class='section'>See Also:</h5><ul>
 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/Marshallers">Marshallers</a>
 * </ul>
 */
public class Csv extends CharMarshaller {
   /**
    * Default reusable instance.
    */
   public static final Csv DEFAULT = new Csv();

   /**
    * Serializes a Java object to a JSON string.
    *
    * <p>
    * A shortcut for calling <c><jsf>DEFAULT</jsf>.write(<jv>object</jv>)</c>.
    *
    * @param object The object to serialize.
    * @return
    *    The serialized object.
    * @throws SerializeException If a problem occurred trying to convert the output.
    */
   public static String of(Object object) throws SerializeException {
      return DEFAULT.write(object);
   }

   /**
    * Serializes a Java object to a JSON output.
    *
    * <p>
    * A shortcut for calling <c><jsf>DEFAULT</jsf>.write(<jv>output</jv>)</c>.
    *
    * @param object The object to serialize.
    * @param output
    *    The output object.
    *    <br>Can be any of the following types:
    *    <ul>
    *       <li>{@link Writer}
    *       <li>{@link OutputStream} - Output will be written as UTF-8 encoded stream.
    *       <li>{@link File} - Output will be written as system-default encoded stream.
    *       <li>{@link StringBuilder} - Output will be written to the specified string builder.
    *    </ul>
    * @return The output object.
    * @throws SerializeException If a problem occurred trying to convert the output.
    * @throws IOException Thrown by underlying stream.
    */
   public static Object of(Object object, Object output) throws SerializeException, IOException {
      DEFAULT.write(object, output);
      return output;
   }

   /**
    * Parses a JSON input object to the specified Java type.
    *
    * <p>
    * A shortcut for calling <c><jsf>DEFAULT</jsf>.read(<jv>input</jv>, <jv>type</jv>)</c>.
    *
    * @param <T> The class type of the object being created.
    * @param input
    *    The input.
    *    <br>Can be any of the following types:
    *    <ul>
    *       <li><jk>null</jk>
    *       <li>{@link Reader}
    *       <li>{@link CharSequence}
    *       <li>{@link InputStream} containing UTF-8 encoded text (or charset defined by
    *          {@link org.apache.juneau.parser.ReaderParser.Builder#streamCharset(Charset)} property value).
    *       <li><code><jk>byte</jk>[]</code> containing UTF-8 encoded text (or charset defined by
    *          {@link org.apache.juneau.parser.ReaderParser.Builder#streamCharset(Charset)} property value).
    *       <li>{@link File} containing system encoded text (or charset defined by
    *          {@link org.apache.juneau.parser.ReaderParser.Builder#fileCharset(Charset)} property value).
    *    </ul>
    * @param type The object type to create.
    * @return The parsed object.
    * @throws ParseException Malformed input encountered.
    * @throws IOException Thrown by underlying stream.
    */
   public static <T> T to(Object input, Class<T> type) throws ParseException, IOException {
      return DEFAULT.read(input, type);
   }

   /**
    * Parses a JSON input object to the specified Java type.
    *
    * <p>
    * A shortcut for calling <c><jsf>DEFAULT</jsf>.read(<jv>input</jv>, <jv>type</jv>, <jv>args</jv>)</c>.
    *
    * @param <T> The class type of the object to create.
    * @param input
    *    The input.
    *    <br>Can be any of the following types:
    *    <ul>
    *       <li><jk>null</jk>
    *       <li>{@link Reader}
    *       <li>{@link CharSequence}
    *       <li>{@link InputStream} containing UTF-8 encoded text (or charset defined by
    *          {@link org.apache.juneau.parser.ReaderParser.Builder#streamCharset(Charset)} property value).
    *       <li><code><jk>byte</jk>[]</code> containing UTF-8 encoded text (or charset defined by
    *          {@link org.apache.juneau.parser.ReaderParser.Builder#streamCharset(Charset)} property value).
    *       <li>{@link File} containing system encoded text (or charset defined by
    *          {@link org.apache.juneau.parser.ReaderParser.Builder#fileCharset(Charset)} property value).
    *    </ul>
    * @param type
    *    The object type to create.
    *    <br>Can be any of the following: {@link ClassMeta}, {@link Class}, {@link ParameterizedType}, {@link GenericArrayType}
    * @param args
    *    The type arguments of the class if it's a collection or map.
    *    <br>Can be any of the following: {@link ClassMeta}, {@link Class}, {@link ParameterizedType}, {@link GenericArrayType}
    *    <br>Ignored if the main type is not a map or collection.
    * @return The parsed object.
    * @throws ParseException Malformed input encountered.
    * @throws IOException Thrown by underlying stream.
    * @see BeanSession#getClassMeta(Type,Type...) for argument syntax for maps and collections.
    */
   public static <T> T to(Object input, Type type, Type...args) throws ParseException, IOException {
      return DEFAULT.read(input, type, args);
   }

   /**
    * Parses a JSON input string to the specified type.
    *
    * <p>
    * A shortcut for calling <c><jsf>DEFAULT</jsf>.read(<jv>input</jv>, <jv>type</jv>)</c>.
    *
    * @param <T> The class type of the object being created.
    * @param input The input.
    * @param type The object type to create.
    * @return The parsed object.
    * @throws ParseException Malformed input encountered.
    */
   public static <T> T to(String input, Class<T> type) throws ParseException {
      return DEFAULT.read(input, type);
   }

   /**
    * Parses a JSON input string to the specified Java type.
    *
    * <p>
    * A shortcut for calling <c><jsf>DEFAULT</jsf>.read(<jv>input</jv>, <jv>type</jv>, <jv>args</jv>)</c>.
    *
    * @param <T> The class type of the object to create.
    * @param input The input.
    * @param type
    *    The object type to create.
    *    <br>Can be any of the following: {@link ClassMeta}, {@link Class}, {@link ParameterizedType}, {@link GenericArrayType}
    * @param args
    *    The type arguments of the class if it's a collection or map.
    *    <br>Can be any of the following: {@link ClassMeta}, {@link Class}, {@link ParameterizedType}, {@link GenericArrayType}
    *    <br>Ignored if the main type is not a map or collection.
    * @return The parsed object.
    * @throws ParseException Malformed input encountered.
    * @see BeanSession#getClassMeta(Type,Type...) for argument syntax for maps and collections.
    */
   public static <T> T to(String input, Type type, Type...args) throws ParseException {
      return DEFAULT.read(input, type, args);
   }

   /**
    * Constructor.
    *
    * <p>
    * Uses {@link CsvSerializer#DEFAULT} and {@link CsvParser#DEFAULT}.
    */
   public Csv() {
      this(CsvSerializer.DEFAULT, CsvParser.DEFAULT);
   }

   /**
    * Constructor.
    *
    * @param s
    *    The serializer to use for serializing output.
    *    <br>Must not be <jk>null</jk>.
    * @param p
    *    The parser to use for parsing input.
    *    <br>Must not be <jk>null</jk>.
    */
   public Csv(CsvSerializer s, CsvParser p) {
      super(s, p);
   }
}