/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.painless.api;

import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentParser;
import org.elasticsearch.xcontent.XContentParserConfiguration;
import org.elasticsearch.xcontent.json.JsonXContent;

import java.io.IOException;

public class Json {
    /**
     * Load a string as the Java version of a JSON type, either List (JSON array), Map (JSON object), Number, Boolean or String
     */
    public static Object load(String json) throws IOException {
        try (XContentParser parser = JsonXContent.jsonXContent.createParser(XContentParserConfiguration.EMPTY, json)) {
            return switch (parser.nextToken()) {
                case START_ARRAY -> parser.list();
                case START_OBJECT -> parser.map();
                case VALUE_NUMBER -> parser.numberValue();
                case VALUE_BOOLEAN -> parser.booleanValue();
                case VALUE_STRING -> parser.text();
                default -> null;
            };
        }
    }

    /**
     * Write a JSON representable type as a string
     */
    public static String dump(Object data) throws IOException {
        return dump(data, false);
    }

    /**
     * Write a JSON representable type as a string, optionally pretty print it by spanning multiple lines and indenting
     */
    public static String dump(Object data, boolean pretty) throws IOException {
        XContentBuilder builder = JsonXContent.contentBuilder();
        if (pretty) {
            builder.prettyPrint();
        }
        builder.value(data);
        builder.flush();
        return builder.getOutputStream().toString();
    }
}