using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.Json.Serialization;
using System.Threading.Tasks;
using Luski.net.Enums;

namespace Luski.net;

public class API
{
    [JsonIgnore]
    public MainServer MainServer { get; internal set; }

    public bool IsAnyServerLoggedin { get; internal set; }
    internal List<PublicServer> InternalServers { get; } = new();
    public IReadOnlyList<PublicServer> LoadedServers => InternalServers.AsReadOnly();

    public Task<bool> TryGetPublicServer(out PublicServer Server, string Domain, string Version = "v1",
        bool Secure = true)
    {
        try
        {
            Task<PublicServer> result = GetPublicServer(Domain, Version, Secure);
            Task.WaitAll(result);
            Server = result.Result;
            return Task.FromResult(true);
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            Server = null!;
            return Task.FromResult(false);
        }
    }
    
    public async Task<PublicServer> GetPublicServer(string Domain, string Version = "v1", bool Secure = true)
    {
        PublicServer s;
        try
        {
            IEnumerable<PublicServer> isl = InternalServers.Where(a => (a.Domain == Domain && a.ApiVersion == Version));
            if (isl.Any()) return isl.First();
            s = await PublicServer.GetServer(Domain, Version, Secure);
        }
        catch (Exception e)
        {
            Console.WriteLine("Failed to connect to public server '{0}' using API {1}. No alternate server was found.", Domain, Version);
            throw;
        }
        
        string? f = s.Storage.GetStorageDirectory(StorageDirectory.StorageInfo) + "token";
        if (File.Exists(f))
        {
            f = File.ReadAllText(f);
        }
        else f = null;

        try
        {
            if (f is not null)
            {
                bool b  = await s.LoginViaToken(f);
                if (b)
                {
                    Console.WriteLine("Auto Login Successful");
                    IsAnyServerLoggedin = true;
                }
                else
                {
                    s.Token = null;
                    s.Error = null;
                }
            }
        }
        catch
        {
        }

        InternalServers.Add(s);
        return s;
    }
    
    public MainServer GetMainServer(string Domain, string Version = "v1")
    {
        DateTime dt = DateTime.UtcNow;
        Console.WriteLine("Conecting to main server '{0}' using API {1}.", Domain, Version);
        MainServer = new(Domain, Version)
        {
            ServerType = ServerType.Main
        };
        Console.WriteLine("Connected to main server '{0}' using API {1} in {2}.", Domain, Version, DateTime.UtcNow.Subtract(dt).ToString("g"));
        return MainServer;
    }
}