/*
 * This file is part of the "TinaX Framework".
 * https://github.com/yomunsam/TinaX
 *
 * (c) Nekonya Studio <me@yomunchan.moe> <yomunsam@nekonya.io>
 * https://nekonya.io
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

using System.Collections.Generic;

namespace TinaX
{
    public static class DictionaryExtension
    {
        /// <summary>
        /// If not empty , return true, else return false
        /// </summary>
        /// <typeparam name="TKey"></typeparam>
        /// <typeparam name="TValue"></typeparam>
        /// <param name="dict"></param>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <returns>If not empty , return true, else return false</returns>
        public static bool AddIfNotExist<TKey, TValue>(this IDictionary<TKey, TValue> dict, TKey key, TValue value)
        {
            if (!dict.ContainsKey(key))
            {
                dict.Add(key, value);
                return true;
            }
            return false;
        }

        /// <summary>
        /// If key not exist , add key-value , or override value.
        /// </summary>
        /// <typeparam name="TKey"></typeparam>
        /// <typeparam name="TValue"></typeparam>
        /// <param name="dict"></param>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public static void AddOrOverride<TKey, TValue>(this IDictionary<TKey, TValue> dict, TKey key, TValue value)
        {
            if (!dict.ContainsKey(key))
                dict.Add(key, value);
            else
                dict[key] = value;
        }
    }
}