using EnotaryoPH.Data;
using EnotaryoPH.Data.Entities;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace EnotaryoPH.Web.Pages.Participant.VideoCall
{
    public class RoomModel : PageModel
    {
        private readonly IConferenceSheduleService _conferenceSheduleService;
        private readonly ICurrentUserService _currentUserService;
        private readonly NotaryoDBContext _dbContext;
        private LawyerVideoConferenceSchedule _LawyerVideoConferenceSchedule;
        private Transaction _Transaction;

        public RoomModel(ICurrentUserService currentUserService, NotaryoDBContext dbContext, IConferenceSheduleService conferenceSheduleService)
        {
            _currentUserService = currentUserService;
            _dbContext = dbContext;
            _conferenceSheduleService = conferenceSheduleService;
        }

        public async Task<IActionResult> OnGetAsync()
        {
            _Transaction = _dbContext.Transactions
                .Include(t => t.TransactionSignatories)
                .Include(t => t.Principal)
                .FirstOrDefault(t => t.Transaction_UID == Transaction_UID);
            if (_Transaction == null)
            {
                return NotFound();
            }

            var currentUser = _dbContext.Users.Single(u => u.User_UID == _currentUserService.GetUser_UID());
            var schedule_UID = await _conferenceSheduleService.GetOrCreateScheduleIDAsync(Transaction_UID);
            if (schedule_UID == Guid.Empty)
            {
                if (_Transaction.PrincipalID == currentUser.UserID)
                {
                    return Redirect($"/Principal/TransactionStatus/{Transaction_UID}");
                }

                if (currentUser.Role.IsInList(UserType.Principal, UserType.Witness))
                {
                    return Redirect($"/Participant/VideoCall/Waiting/{Transaction_UID}");
                }

                return Redirect("/");
            }

            _LawyerVideoConferenceSchedule = _dbContext.LawyerVideoConferenceSchedules
                .Include(sched => sched.LawyerVideoConferenceParticipants)
                .ThenInclude(p => p.Participant)
                .Include(sched => sched.Lawyer)
                .ThenInclude(l => l.User)
                .FirstOrDefault(sched => sched.LawyerVideoConferenceSchedule_UID == schedule_UID);

            CommunicationUserToken = currentUser.Role == nameof(UserType.Notary)
                ? _LawyerVideoConferenceSchedule.MeetingRoomTokenID
                : _LawyerVideoConferenceSchedule.LawyerVideoConferenceParticipants.First(u => u.ParticipantID == currentUser.UserID).MeetingRoomTokenID;
            CommunicationRoomId = _LawyerVideoConferenceSchedule.MeetingRoomID;
            CommunicationUserId = currentUser.Role == nameof(UserType.Notary)
                ? _LawyerVideoConferenceSchedule.MeetingRoomUserID
                : _LawyerVideoConferenceSchedule.LawyerVideoConferenceParticipants.First(u => u.ParticipantID == currentUser.UserID).MeetingRoomUserID;

            return Page();
        }

        public async Task OnPostStartRecordingAsync() => await _conferenceSheduleService.StartRecordingAsync(Transaction_UID);

        public string CommunicationRoomId { get; private set; }

        public string CommunicationUserId { get; set; }

        public string CommunicationUserToken { get; private set; }

        public List<RoomParticipantViewModel> Participants
        {
            get
            {
                var signatoryTypes = _Transaction.TransactionSignatories.Where(t => t.UserID > 0).ToDictionary(k => k.UserID, v => v.Type);
                var participants = _LawyerVideoConferenceSchedule.LawyerVideoConferenceParticipants.ConvertAll(p => new RoomParticipantViewModel
                {
                    Id = p.LawyerVideoConferenceParticipant_UID.ToString(),
                    DisplayName = $"{p.Participant.Firstname} {p.Participant.Lastname}".Trim().DefaultIfEmpty(p.Participant.Email),
                    RoomUserID = p.MeetingRoomUserID,
                    Type = signatoryTypes.GetValueOrDefault(p.ParticipantID, nameof(UserType.Principal))
                });

                var host = _LawyerVideoConferenceSchedule.Lawyer.User;
                participants.Add(new RoomParticipantViewModel
                {
                    DisplayName = $"{host.Firstname} {host.Lastname}".Trim().DefaultIfEmpty(host.Email),
                    Id = Guid.Empty.ToString(),
                    RoomUserID = _LawyerVideoConferenceSchedule.MeetingRoomUserID,
                    Type = nameof(UserType.Notary)
                });

                return participants;
            }
        }

        [BindProperty(SupportsGet = true)]
        public string ServerCallingID { get; set; }

        [BindProperty(SupportsGet = true)]
        public Guid Transaction_UID { get; set; }
    }
}