using SeaHaven.Services.DTOs;
using SeaHaven.Services.Interfaces;

namespace SeaHaven.Services.Implementation
{
    public class WorkOrderBoardMapper : IWorkOrderBoardMapper
    {
        private readonly IWorkOrderStatusMapper _statusMapper;

        public WorkOrderBoardMapper(IWorkOrderStatusMapper statusMapper)
        {
            _statusMapper = statusMapper;
        }

        public WorkOrderBoardItemDto MapToBoardItem(WorkOrderBoardRowDto row, DateOnly? today = null)
        {
            var effectiveToday = today ?? DateOnly.FromDateTime(DateTime.UtcNow);
            var isUnassigned = string.IsNullOrWhiteSpace(row.AssigneeId);
            var isPastDue = ComputeIsPastDue(row, effectiveToday);

            var presentation = new BoardRowPresentation(
                StatusDisplay: _statusMapper.ToDisplay(row.Status, isUnassigned),
                IsPastDue: isPastDue,
                WorkOrderTypeDisplay: string.IsNullOrWhiteSpace(row.WorkOrderType) ? null : row.WorkOrderType.Trim()
            );

            return new WorkOrderBoardItemDto(row, presentation);
        }

        private bool ComputeIsPastDue(WorkOrderBoardRowDto row, DateOnly today)
        {
            if (!row.ScheduledDate.HasValue)
                return false;

            if (_statusMapper.IsTerminal(row.Status))
                return false;

            return row.ScheduledDate.Value < today;
        }
    }
}