using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace TinaX.Systems.Configuration
{
    public interface IConfigurationProvider
    {
        /// <summary>
        /// Tries to get a configuration value for the specified key.
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        bool TryGet(string key, out string value);

        /// <summary>
        /// Sets a configuration value for the specified key.
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        void Set(string key, string value);

        /// <summary>
        /// Returns the immediate descendant configuration keys for a given parent path based on this
        /// 基于此返回给定父路径的直接子代配置键
        /// <see cref="IConfigurationProvider"/>s data and the set of keys returned by all the preceding
        /// <see cref="IConfigurationProvider"/>s.
        /// </summary>
        /// <param name="earlierKeys">The child keys returned by the preceding providers for the same parent path.</param>
        /// <param name="parentPath">The parent path.</param>
        /// <returns>The child keys.</returns>
        IEnumerable<string> GetChildKeys(IEnumerable<string> earlierKeys, string parentPath);

        void Load();
    }
}