using C4IT.FASD.Base;
using C4IT.FASD.Cockpit.Communication;
using C4IT.FASD.Communication.Agent;
using C4IT.HTTP;
using FasdCockpitBase;
using FasdCockpitBase.Models.RemoteDesktopConnection;
using Newtonsoft.Json;
using System;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;

namespace FasdCockpitCommunication.RemoteDesktopCommunication
{
    internal class AgentRemoteDesktopCommunication : RemoteDesktopCommunicationBase
    {
        private readonly HttpClient _httpClient = new HttpClient();

        public AgentRemoteDesktopCommunication()
        {
            _httpClient.BaseAddress = new Uri(cFasdCockpitMachineConfiguration.Instance.ServerUrl);
        }

        public override async Task<T> InitiateConnection<T>(IRemoteDesktopClientInfo clientInfo, bool isElevated, CancellationToken token)
        {
            cHttpHelper httpHelper = cFasdCockpitCommunicationWeb.GetHttpHelper(false);
            string json = JsonConvert.SerializeObject(clientInfo);
            string path = "api/RemoteDesktop/Initiate";

            if (isElevated)
                path += "?isElevated=true";

            cHttpResult result = await httpHelper.PostJsonAsync(path, json, 30_000, token);
            return JsonConvert.DeserializeObject<T>(result.Result);
        }

        public override async Task<RemoteDesktopConnectionStatusResult> GetConnectionStatus(Guid connectionId, CancellationToken token)
        {
            cHttpHelper http = cFasdCockpitCommunicationWeb.GetHttpHelper(false);
            string path = $"api/RemoteDesktop/{connectionId}/Status";
            cHttpResult result = await http.GetHttpJson(path, 15_000, token, true);

            if (!result.IsOk)
                return new RemoteDesktopConnectionStatusResult(RemoteDesktopConnectionStatus.Unknown);

            AgentRemoteConnectionStatusDto connectionStatus = JsonConvert.DeserializeObject<AgentRemoteConnectionStatusDto>(result.Result);
            return GetGeneralConnectionStatus(connectionStatus);
        }

        private RemoteDesktopConnectionStatusResult GetGeneralConnectionStatus(AgentRemoteConnectionStatusDto connectionStatus)
        {
            switch (connectionStatus.Status)
            {
                case AgentRemoteConnectionStatus.New:
                    return new RemoteDesktopConnectionStatusResult(RemoteDesktopConnectionStatus.Initiated);
                case AgentRemoteConnectionStatus.Accepted:
                    return new RemoteDesktopConnectionStatusResult(RemoteDesktopConnectionStatus.Accepted);
                case AgentRemoteConnectionStatus.DisconnectedByHelpdesk:
                    return new RemoteDesktopConnectionStatusResult(RemoteDesktopConnectionStatus.Finished);
                case AgentRemoteConnectionStatus.DisconnectedByClient:
                case AgentRemoteConnectionStatus.Failed:
                    return new RemoteDesktopConnectionStatusResult(RemoteDesktopConnectionStatus.Canceled);
                case AgentRemoteConnectionStatus.Unknown:
                default:
                    return new RemoteDesktopConnectionStatusResult(RemoteDesktopConnectionStatus.Unknown);
            }
        }

        public override async Task StopConnection(Guid connectionId, CancellationToken token)
        {
            cHttpHelper http = cFasdCockpitCommunicationWeb.GetHttpHelper(false);
            string path = $"api/RemoteDesktop/{connectionId}/Stop";
            await http.DeleteAsync(path, 15_000, token, true);
        }

        public override async Task<HealthInformation> GetHealth(CancellationToken token)
        {
            cHttpHelper http = cFasdCockpitCommunicationWeb.GetHttpHelper(false);
            string path = $"api/RemoteDesktop/health";
            cHttpResult result = await http.GetHttpJson(path, 10_000, token, true);

            if (!result.IsOk)
                return new HealthInformation(HealthStatus.unhealthy);

            return JsonConvert.DeserializeObject<HealthInformation>(result.Result);
        }

        public override async Task<bool> IsRemoteDesktopCommunicationAvailable()
        {
            cHttpHelper http = cFasdCockpitCommunicationWeb.GetHttpHelper(false);
            string path = $"api/RemoteDesktop/IsActive";
            cHttpResult result = await http.GetHttpJson(path, 5_000, CancellationToken.None, false);

            if (!result.IsOk)
                return false;

            bool isRemoteViewerActive = JsonConvert.DeserializeObject<bool>(result.Result); ;
            if (!isRemoteViewerActive)
                return false;

            return await base.IsRemoteDesktopCommunicationAvailable();
        }
    }

    public class AgentRemoteClientInfo : IRemoteDesktopClientInfo
    {
        [JsonProperty("orgCode")]
        public int OrganisationCode { get; set; }

        [JsonProperty("deviceCode")]
        public int DeviceCode { get; set; }

        [JsonProperty("accountCode")]
        public int AccountCode { get; set; }
    }
}