using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace PackingPress.Common
{
    public class SettingJsonGet
    {
        private JToken _jsonData;
        private string _fileName;

        public SettingJsonGet(string jsonFile)
        {
            try
            {
                string settingText = FileHelper.ReaderFile(jsonFile);
                _fileName = jsonFile;
                _jsonData = JToken.Parse(settingText);
            }
            catch {
                _jsonData = JToken.Parse("{}");
            }
        }
        /// <summary>
        /// 获取json对象
        /// </summary>
        /// <param name="jsonFile"></param>
        /// <returns></returns>
        public JToken GetJsonRoot()
        {
            return _jsonData;
        }

        public void SaveJson()
        {
            FileHelper.WriteFile(_fileName,_jsonData.ToString(),"UTF-8");
        }
    }

    public static class NewtonsoftExtends
    {
        /// <summary>
        /// 根据JsonPath获取json值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="jToken"></param>
        /// <param name="jsonPath"></param>
        /// <returns></returns>
        public static T GetJPropertyValueByPath<T>(this JToken jToken, string jsonPath)
        {
            var childJToken = jToken.SelectToken(jsonPath);
            if (childJToken != null)
            {
                return childJToken.Value<T>();
            }
            return default(T);
        }

        /// <summary>
        /// 设置Json对象值
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="jToken"></param>
        /// <param name="name"></param>
        /// <param name="value"></param>
        public static void SetPropertyValue<T>(this JToken jToken,string name, T value)
        {
            jToken.Replace(new JProperty(name, value));
        }

        /// <summary>
        /// 设置Json对象值根据JsonPath
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="jToken"></param>
        /// <param name="name"></param>
        /// <param name="value"></param>
        public static void SetPropertyValue<T>(this JToken jToken, string name, T value,string jsonPath)
        {
            var parentJToken = jToken.SelectToken(jsonPath);
            if (parentJToken != null)
            {
                var childJToken = parentJToken.FirstOrDefault(child => ((JProperty)child).Name == name);
                if (childJToken != null)
                {
                    childJToken.Replace(new JProperty(name, value));
                }
            }
        }

        /// <summary>
        /// 获取所有子节点
        /// </summary>
        /// <param name="jToken"></param>
        /// <param name="jsonPath"></param>
        /// <returns></returns>
        public static IEnumerable<JToken> GetAllChildren(this JToken jToken, string jsonPath)
        {
            var parentJToken = jToken.SelectToken(jsonPath);
            if (parentJToken == null) { return null; }
            return parentJToken.Children();
        }

        /// <summary>
        /// 添加子节点
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="jObject"></param>
        /// <param name="name"></param>
        /// <param name="value"></param>
        public static void AddChild<T>(this JObject jObject, string name, T value)
        {
            if (jObject.ContainsKey(name))
            {
                var findChild = jObject.Children().Where(child => ((JProperty)child).Name == name).FirstOrDefault();
                findChild.Replace(new JProperty(name, value));
            }
            else
            {
                jObject.Add(name, JToken.FromObject(value));
            }
        }
    }
}