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

namespace BellwetherBackend.Utility
{
    public static class Setting
    {
        private static readonly string dataDirectory = System.IO.Path.Combine(Directory.GetCurrentDirectory(), "Data");
        public static readonly string settingJsonDataPath = System.IO.Path.Combine(dataDirectory, "setting.ini");

        public static readonly List<string> PageNameList = new List<string>() { "大事記", "產品展示", "社會責任" };

        public enum PageType : int
        {
            FrontPage,
            History,
            Product,
            CSR,
        }

        public static readonly Dictionary<PageType, string> PageFolderName
            = new Dictionary<PageType, string>() {
                { PageType.History, "History" },
                { PageType.Product, "Product" },
                { PageType.CSR, "CSR" },
            };

        private static SettingJson _settingJsonFile;
        public static SettingJson settingJsonFile
        {
            get
            {
                if (_settingJsonFile != null)
                    return _settingJsonFile;
                else
                {
                    AnalyzJsonFile();
                    return _settingJsonFile;
                }
            }
            set
            {
                _settingJsonFile = value;
                //save Json
                SaveJson();
            }
        }

        private static void AnalyzJsonFile()
        {
            string jsonResult;

            if (!File.Exists(settingJsonDataPath))
            {
                _settingJsonFile = new SettingJson()
                {
                    BackHomeSec = 60,
                };

                return;
            }
            else
            {
                using (StreamReader sr = new StreamReader(settingJsonDataPath))
                {
                    jsonResult = sr.ReadToEnd();
                }
                _settingJsonFile = JsonConvert.DeserializeObject<SettingJson>(jsonResult);
            }
        }

        private static void SaveJson()
        {
            string jsonString;// = JsonConvert.SerializeObject(_settingJsonFile, Newtonsoft.Json.Formatting.Indented);

            jsonString = JsonConvert.SerializeObject(_settingJsonFile, Newtonsoft.Json.Formatting.Indented);
            using (StreamWriter sw = new StreamWriter(settingJsonDataPath, false, Encoding.Unicode))
            {
                sw.Write(jsonString);
                sw.Close();
            }
        }
    }

    public class SettingJson
    {
        public int BackHomeSec { get; set; }
    }

    public class FrontPageJson
    {
        public string SolarEnergyUrl { get; set; }
    }
}