using System;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Connect;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Connect;
using MediaBrowser.Model.Dto;
using ServiceStack;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace MediaBrowser.Api
{
    [Route("/Users/{Id}/Connect/Link", "POST", Summary = "Creates a Connect link for a user")]
    [Authenticated(Roles = "Admin")]
    public class CreateConnectLink : IReturn<UserLinkResult>
    {
        [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST")]
        public string Id { get; set; }

        [ApiMember(Name = "ConnectUsername", Description = "Connect username", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST")]
        public string ConnectUsername { get; set; }
    }

    [Route("/Users/{Id}/Connect/Link", "DELETE", Summary = "Removes a Connect link for a user")]
    [Authenticated(Roles = "Admin")]
    public class DeleteConnectLink : IReturnVoid
    {
        [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "DELETE")]
        public string Id { get; set; }
    }

    [Route("/Connect/Invite", "POST", Summary = "Creates a Connect link for a user")]
    [Authenticated(Roles = "Admin")]
    public class CreateConnectInvite : IReturn<UserLinkResult>
    {
        [ApiMember(Name = "ConnectUsername", Description = "Connect username", IsRequired = true, DataType = "string", ParameterType = "body", Verb = "POST")]
        public string ConnectUsername { get; set; }

        [ApiMember(Name = "SendingUserId", Description = "Sending User Id", IsRequired = true, DataType = "string", ParameterType = "body", Verb = "POST")]
        public string SendingUserId { get; set; }

        [ApiMember(Name = "EnabledLibraries", Description = "EnabledLibraries", IsRequired = true, DataType = "string", ParameterType = "body", Verb = "POST")]
        public string EnabledLibraries { get; set; }

        [ApiMember(Name = "EnabledChannels", Description = "EnabledChannels", IsRequired = true, DataType = "string", ParameterType = "body", Verb = "POST")]
        public string EnabledChannels { get; set; }

        [ApiMember(Name = "EnableLiveTv", Description = "EnableLiveTv", IsRequired = true, DataType = "string", ParameterType = "body", Verb = "POST")]
        public bool EnableLiveTv { get; set; }
    }


    [Route("/Connect/Pending", "GET", Summary = "Creates a Connect link for a user")]
    [Authenticated(Roles = "Admin")]
    public class GetPendingGuests : IReturn<List<ConnectAuthorization>>
    {
    }


    [Route("/Connect/Pending", "DELETE", Summary = "Deletes a Connect link for a user")]
    [Authenticated(Roles = "Admin")]
    public class DeleteAuthorization : IReturnVoid
    {
        [ApiMember(Name = "Id", Description = "Authorization Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "DELETE")]
        public string Id { get; set; }
    }

    [Route("/Connect/Exchange", "GET", Summary = "Gets the corresponding local user from a connect user id")]
    [Authenticated]
    public class GetLocalUser : IReturn<ConnectAuthenticationExchangeResult>
    {
        [ApiMember(Name = "ConnectUserId", Description = "ConnectUserId", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST")]
        public string ConnectUserId { get; set; }
    }

    [Route("/Connect/Supporters", "GET")]
    [Authenticated(Roles = "Admin")]
    public class GetConnectSupporterSummary : IReturn<ConnectSupporterSummary>
    {
    }

    [Route("/Connect/Supporters", "DELETE")]
    [Authenticated(Roles = "Admin")]
    public class RemoveConnectSupporter : IReturnVoid
    {
        [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "DELETE")]
        public string Id { get; set; }
    }

    [Route("/Connect/Supporters", "POST")]
    [Authenticated(Roles = "Admin")]
    public class AddConnectSupporter : IReturnVoid
    {
        [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST")]
        public string Id { get; set; }
    }

    public class ConnectService : BaseApiService
    {
        private readonly IConnectManager _connectManager;
        private readonly IUserManager _userManager;

        public ConnectService(IConnectManager connectManager, IUserManager userManager)
        {
            _connectManager = connectManager;
            _userManager = userManager;
        }

        public async Task<object> Get(GetConnectSupporterSummary request)
        {
            var result = await _connectManager.GetConnectSupporterSummary().ConfigureAwait(false);
            var existingConnectUserIds = result.Users.Select(i => i.Id).ToList();

            result.EligibleUsers = _userManager.Users
                .Where(i => !string.IsNullOrWhiteSpace(i.ConnectUserId))
                .Where(i => !existingConnectUserIds.Contains(i.ConnectUserId, StringComparer.OrdinalIgnoreCase))
                .OrderBy(i => i.Name)
                .Select(i => _userManager.GetUserDto(i))
                .ToList();

            return ToOptimizedResult(result);
        }

        public void Delete(RemoveConnectSupporter request)
        {
            var task = _connectManager.RemoveConnectSupporter(request.Id);

            Task.WaitAll(task);
        }

        public void Post(AddConnectSupporter request)
        {
            var task = _connectManager.AddConnectSupporter(request.Id);

            Task.WaitAll(task);
        }

        public object Post(CreateConnectLink request)
        {
            return _connectManager.LinkUser(request.Id, request.ConnectUsername);
        }

        public object Post(CreateConnectInvite request)
        {
            var enabledLibraries = (request.EnabledLibraries ?? string.Empty)
                .Split(',')
                .Where(i => !string.IsNullOrWhiteSpace(i))
                .ToArray();

            var enabledChannels = (request.EnabledChannels ?? string.Empty)
                .Split(',')
                .Where(i => !string.IsNullOrWhiteSpace(i))
                .ToArray();

            return _connectManager.InviteUser(new ConnectAuthorizationRequest
            {
                ConnectUserName = request.ConnectUsername,
                SendingUserId = request.SendingUserId,
                EnabledLibraries = enabledLibraries,
                EnabledChannels = enabledChannels,
                EnableLiveTv = request.EnableLiveTv
            });
        }

        public void Delete(DeleteConnectLink request)
        {
            var task = _connectManager.RemoveConnect(request.Id);

            Task.WaitAll(task);
        }

        public async Task<object> Get(GetPendingGuests request)
        {
            var result = await _connectManager.GetPendingGuests().ConfigureAwait(false);

            return ToOptimizedResult(result);
        }

        public void Delete(DeleteAuthorization request)
        {
            var task = _connectManager.CancelAuthorization(request.Id);

            Task.WaitAll(task);
        }

        public async Task<object> Get(GetLocalUser request)
        {
            var user = await _connectManager.GetLocalUser(request.ConnectUserId).ConfigureAwait(false);

            if (user == null)
            {
                throw new ResourceNotFoundException();
            }

            return ToOptimizedResult(new ConnectAuthenticationExchangeResult
            {
                AccessToken = user.ConnectAccessKey,
                LocalUserId = user.Id.ToString("N")
            });
        }
    }
}