using Data.SeaHavenIndustries;
using SeaHaven.Services.DTOs;

namespace SeaHaven.Services.Helpers
{
    public static class WorkOrderAuditProjection
    {
        public static WorkOrderAuditEntryDto ToDto(WorkOrderAuditLog log)
        {
            return new WorkOrderAuditEntryDto
            {
                Type = MapEventType(log.EventType),
                DispatcherId = log.UserId,
                Action = log.Action ?? "",
                FieldName = log.FieldName,
                OldValue = log.OldValue ?? "",
                NewValue = log.NewValue ?? "",
                Time = log.CreatedAt.ToString("o"),
                DispatchId = log.DispatchId
            };
        }

        public static List<WorkOrderAuditEntryDto> ToDtos(IEnumerable<WorkOrderAuditLog> logs)
            => logs.Select(ToDto).ToList();

        private static string MapEventType(string? eventType)
        {
            if (string.IsNullOrWhiteSpace(eventType))
                return "manual";

            return eventType.ToLowerInvariant() switch
            {
                "manual" => "manual",
                "system" => "system",
                "sync" => "sync",
                "vendor" => "vendor",
                _ => eventType.ToLowerInvariant()
            };
        }
    }
}