using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Blog3000.Server
{
    public class BlogEnv
    {
        private readonly IWebHostEnvironment env;
        private readonly ILogger logger;

        public BlogEnv(ILogger<BlogEnv> logger, IWebHostEnvironment env)
        {
            this.env = env;
            this.logger = logger;

            // Determin path, set in AppDomain-var (for legacy)
            AppDataPath = BuildAppDataPath();

            System.AppDomain.CurrentDomain.SetData("AppDataPath", AppDataPath);

            logger.LogInformation($"Set AppDataPath={AppDataPath}");
        }


        public string AppDataPath { get; private set; }


        private BlogConfigJson _configJson;
        public BlogConfigJson BlogConfig
        {
            get
            {
                if (_configJson == null)
                {
                    try
                    {
                        //var path = env.WebRootFileProvider.GetFileInfo("config.json")?.PhysicalPath;
                        _configJson = LoadConfig();
                    }
                    catch (Exception ex)
                    {
                        //logger.LogWarning($"Error reading wwwroot/config.json {ex}");
                        logger.LogWarning($"Error reading blogconfig.json {ex}");
                    }
                }

                return _configJson;
            }
        }


        public static BlogConfigJson LoadConfig()
        {
            Console.WriteLine($"Loading blogconfig.json {GetCfgFilePath()}");
            var txt = System.IO.File.ReadAllText(GetCfgFilePath());            
            return JsonConvert.DeserializeObject<BlogConfigJson>(txt);
        }


        public static void SaveConfig(BlogConfigJson c)
        {
            var txt = JsonConvert.SerializeObject(c, Formatting.Indented);
            System.IO.File.WriteAllText(GetCfgFilePath(), txt);
        }


        private static string BuildAppDataPath()
        {
            // Determin path, set in AppDomain-var (for legacy)
            if (Program.blogDataPath == null)
            {
                //logger.LogInformation($"CurrentDir->{Environment.CurrentDirectory}");
                //AppDataPath = System.IO.Path.Combine(env.ContentRootPath, "app_data");
                return System.IO.Path.Combine(Environment.CurrentDirectory, "app_data");
            }
            else
            {
                return Program.blogDataPath;
            }
        }


        private static string GetCfgFilePath()
        {
            return System.IO.Path.Combine(BuildAppDataPath(), "blogconfig.json");
        }


        public class BlogConfigJson: ClientConfigJson
        {
            public ClientConfigJson ToClientConfig()
            {
                return new ClientConfigJson
                {
                    Title = Title,
                    DefaultEMailAddress = DefaultEMailAddress,
                    AuthorFullnames = AuthorFullnames,
                    TopTopics = TopTopics,
                    SocialLinks = SocialLinks
                };
            }

            //

            public bool AllowSearchBots { get; set; }

            public bool AllowSearchDevBot { get; set; }

            public string SyslogAppName { get; set; }

            public string PublicDlUri { get; set; }

            public int? ListenPort { get; set; }

            public string VisibleUrlPrefix { get; set; }

            //

            public ProtectedConfig Protected { get; set; }

            public bool TwitterEnabled { get; set; }

            public bool TwitterTestMode { get; set; }


            public override string ToString()
            {
                return JsonConvert.SerializeObject(this, Formatting.Indented);

            }
        }



        public class ProtectedConfig
        {
            public string TwitterAPIKey { get; set; }
            public string TwitterAPISecret { get; set; }
            public string TwitterAccessToken { get; set; }
            public string TwitterAccessSecret { get; set; }

        }


        public class ClientConfigJson
        {
            public string Title { get; set; }
            public string DefaultEMailAddress { get; set; }

            public Dictionary<string, string> AuthorFullnames { get; set; }

            public Dictionary<string, string> SocialLinks { get; set; }

            public string[] TopTopics { get; set; }

        }

    }
}