using Ophelias.Models;


namespace Ophelias.Reporting
{
    internal static class Operational
    {
        internal static void FetchDailyArriavals(List<Reservation> reservations)
        {
            List<string> entries = new();
            foreach (Reservation r in reservations)
            {
                string roominfo;
                if (!r.RoomNum.HasValue)
                {
                    roominfo = "N/A";
                }
                else
                {

                    roominfo = r.RoomNum.Value.ToString();
                }

                entries.Add($"{r.Guest.LastName}, {r.Guest.FirstName}\t{r.Type}\t{roominfo}\t{r.EndDate}");
            }
            string report = $"DAILY ARRIVAL REPORT - GENERATED ON {DateTime.Now.Date.ToString("yyyy-MM-dd")}\n" +
                $"Last, First\tType\tRoom\tDeparture" +
                $"{string.Join("\n", entries)}\n\n";

            File.AppendAllText(Path.GetFullPath("DailyArrivals.txt"), report);
        }
        internal static void FetchDailyOccupancy(List<(DateTime, int, string, string)> cop, List<int> pop)
        {
            List<string> entries = new();
            foreach (var c in cop)
            {
                string lastOccupied;
                string sameDayLeave = "";
                if (pop.Contains(c.Item2))
                {
                    lastOccupied = DateTime.Now.AddDays(-1).ToString("yyyy-MM-dd"); 
                } else
                {
                    lastOccupied = "N/A";
                }

                if(DateTime.Now.Date == c.Item1.Date)
                {
                    sameDayLeave = "*";
                }
                entries.Add($"{c.Item2}\t{lastOccupied}\t{sameDayLeave}{c.Item3}, {c.Item4}");
            }
            string report = $"DAILY OCCUPANCY REPORT - GENERATED ON {DateTime.Now.Date.ToString("yyyy-MM-dd")}\n" +
                $"An * means that the guest is leaving the same day.\n" +
                $"Room #\tPrev. Occupied\tCurrent Occupant\n" +
                $"{string.Join("\n", entries)}\n\n";

            File.AppendAllText(Path.GetFullPath("DailyOccupancy.txt"), report);
        }

    }
}