using System;
using System.Collections.Generic;
using AibisDream.Utility;
using Newtonsoft.Json.Linq;

namespace AibisDream.Kit
{
    /// <summary>
    /// 配置项容器
    /// 1. 读取时可以直接从文件读取
    /// 2. 保存时可以直接保存到文件
    /// 3. 修改时会触发回调函数
    /// </summary>
    public class ConfigContainer
    {
        private readonly string _configPath;
        private JObject Data => JsonUtil.ReadJObject(_configPath);

        public event Action<string, string> OnWrite; 

        public ConfigContainer(string configPath)
        {
            _configPath = configPath;
        }

        /// <summary>
        /// 写入
        /// </summary>
        /// <param name="key">键</param>
        /// <param name="value">值</param>
        public void Write(string key, string value)
        {
            var data = Data;
            data[key] = value;
            JsonUtil.SaveJObject(data, _configPath);
            OnWrite?.Invoke(key, value);
        }

        /// <summary>
        /// 读取配置项
        /// </summary>
        /// <param name="key">键</param>
        /// <param name="value">值</param>
        /// <returns>是否读取完成</returns>
        public bool TryRead(string key, out string value)
        {
            var res = Data.TryGetValue(key, out var jsValue);

            value = jsValue?.ToString();
            return res;
        }

        /// <summary>
        /// 读取全部配置项为Dict
        /// </summary>
        /// <returns>配置项字典</returns>
        public Dictionary<string, string> ReadAll()
        {
            var data = Data;

            var res = new Dictionary<string, string>();
            foreach (var pair in data)
            {
                res[pair.Key] = pair.Value.ToString();
            }

            return res;
        }
    }
}