using Data.SeaHavenIndustries.Enums;

namespace SeaHaven.Services.Helpers
{
    public static class WorkOrderDerivedFields
    {
        public static bool IsPastDue(
            DateTime? scheduledDate,
            LifecycleStatus? lifecycleStatus,
            DateTime? utcNow = null)
        {
            if (!scheduledDate.HasValue)
                return false;

            if (LifecycleStatusMapper.IsTerminal(lifecycleStatus))
                return false;

            var today = (utcNow ?? DateTime.UtcNow).Date;
            return scheduledDate.Value.Date < today;
        }

        public static bool IsTerminal(LifecycleStatus? lifecycleStatus)
            => LifecycleStatusMapper.IsTerminal(lifecycleStatus);

        public static string? GetDayGroup(DateTime? scheduledDate)
        {
            if (!scheduledDate.HasValue)
                return null;

            return scheduledDate.Value.DayOfWeek switch
            {
                DayOfWeek.Monday => "monday",
                DayOfWeek.Tuesday => "tuesday",
                DayOfWeek.Wednesday => "wednesday",
                DayOfWeek.Thursday => "thursday",
                DayOfWeek.Friday => "friday",
                _ => null
            };
        }

        public static string? FormatApptTime(DateTime? start, DateTime? end)
        {
            if (!start.HasValue)
                return null;

            if (end.HasValue)
                return $"{start.Value:HH:mm} – {end.Value:HH:mm}";

            return start.Value.ToString("HH:mm");
        }

        public static string GetLifecycleStatusLabel(LifecycleStatus? status)
            => status.HasValue ? LifecycleStatusMapper.ToFeLabel(status.Value) : "";
    }
}