Add stock report features r
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using Distribution.Models;
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namespace Distribution.Features.Vehicle;
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public class VehicleDashboardService(IVehicleRepository vehicleRepo, IVehicleDashboardRepository repo)
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{
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private const int LedgerSize = 50;
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private const int RideListSize = 15;
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private const int TopListSize = 5;
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private const int MaxPeriodDays = 366;
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public static string? Validate(DateTime? from, DateTime? to)
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{
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if (from.HasValue && to.HasValue)
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{
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if (from.Value.Date > to.Value.Date) return "'from' must not be after 'to'.";
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if ((to.Value.Date - from.Value.Date).TotalDays >= MaxPeriodDays) return $"The period cannot exceed {MaxPeriodDays} days.";
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}
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return null;
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}
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/// <summary>Unlike the standard vehicle lookup, this also serves inactive vehicles so their history stays viewable.</summary>
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public async Task<VehicleDashboardResponse?> GetAsync(Guid id, DateTime? from, DateTime? to)
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{
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var vehicle = await vehicleRepo.GetByIdAsync(id);
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if (vehicle is null) return null;
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var toDate = (to ?? DateTime.Now).Date;
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var fromDate = (from ?? toDate.AddDays(-29)).Date;
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var toExclusive = toDate.AddDays(1);
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var balances = await repo.GetStockOnBoardAsync(id);
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var movements = (await repo.GetMovementsAsync(id, fromDate, toExclusive))
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.Select(m => (Row: m, Direction: DirectionOf(m, id)))
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.Where(x => x.Direction is not null)
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.ToList();
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var rides = await repo.GetRidesAsync(id, fromDate, toExclusive);
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var tasks = await repo.GetTasksAsync(id, fromDate, toExclusive);
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var collections = await repo.GetCollectionsAsync(id, fromDate, toExclusive);
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var returnTotals = await repo.GetReturnTotalsAsync(id, fromDate, toExclusive);
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var openRide = await repo.GetOpenRideAsync(id);
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// ── Stock on board ─────────────────────────────────────────────────
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var stock = balances
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.GroupBy(b => b.ItemId)
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.Select(g =>
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{
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var f = g.First();
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var qty = g.Sum(x => x.Quantity);
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return new VehicleDashboardStockRow(
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f.ItemId, f.Sku, f.Name, f.Category, f.Uom, qty, qty * (f.SalePrice ?? 0m), g.Max(x => x.UpdatedAt));
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})
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.OrderBy(r => r.Name)
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.ToList();
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// ── Rides and deliveries ───────────────────────────────────────────
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static decimal Km(VehicleRideRow r) =>
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r.Status == RideStatus.Closed && r.MeterEnd > r.MeterStart ? r.MeterEnd - r.MeterStart : 0m;
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var rideRows = rides.Take(RideListSize)
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.Select(r => new VehicleDashboardRide(
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r.Id, r.Status, r.DriverName, r.StartedAt, r.ClosedAt, r.CreatedAt,
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Km(r), r.Tasks, r.Delivered, r.Failed, r.CancelType, r.CancelReason))
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.ToList();
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bool IsDelivered(VehicleTaskRow t) =>
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t.Status is DeliveryTaskStatus.Delivered or DeliveryTaskStatus.PartiallyDelivered;
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var delivered = tasks.Count(IsDelivered);
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var failed = tasks.Count(t => t.Status == DeliveryTaskStatus.Failed);
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var pending = tasks.Count(t => t.Status == DeliveryTaskStatus.Pending);
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var deliveredValue = tasks.Where(IsDelivered).Sum(t => t.DeliveredValue);
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var dailyDeliveries = new List<VehicleDashboardDailyDelivery>();
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var dailyMovement = new List<VehicleDashboardDailyMovement>();
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var tasksByDay = tasks.GroupBy(t => t.Date.Date).ToDictionary(g => g.Key);
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var movesByDay = movements.GroupBy(x => x.Row.CreatedAt.Date).ToDictionary(g => g.Key);
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for (var d = fromDate; d <= toDate; d = d.AddDays(1))
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{
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var key = d.ToString("yyyy-MM-dd");
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tasksByDay.TryGetValue(d, out var dayTasks);
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movesByDay.TryGetValue(d, out var dayMoves);
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dailyDeliveries.Add(new VehicleDashboardDailyDelivery(
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key, dayTasks?.Count(IsDelivered) ?? 0, dayTasks?.Count(t => t.Status == DeliveryTaskStatus.Failed) ?? 0));
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dailyMovement.Add(new VehicleDashboardDailyMovement(
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key,
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dayMoves?.Where(x => x.Direction == "In").Sum(x => x.Row.Quantity) ?? 0m,
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dayMoves?.Where(x => x.Direction == "Out").Sum(x => x.Row.Quantity) ?? 0m));
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}
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var cancelReasons = rides
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.Where(r => r.Status == RideStatus.Cancelled && r.CancelType.HasValue)
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.GroupBy(r => r.CancelType!.Value)
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.Select(g => new VehicleDashboardCancelReason(g.Key, g.Count()))
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.OrderByDescending(c => c.Count)
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.ToList();
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var topStores = tasks
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.Where(IsDelivered)
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.GroupBy(t => (t.StoreId, t.StoreName))
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.Select(g => new VehicleDashboardTopStore(g.Key.StoreId, g.Key.StoreName, g.Count(), g.Sum(t => t.DeliveredValue)))
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.OrderByDescending(s => s.Value)
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.Take(TopListSize)
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.ToList();
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// ── Movements ──────────────────────────────────────────────────────
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var byType = movements
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.GroupBy(x => (x.Row.Type, x.Direction))
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.Select(g => new VehicleDashboardMovementType(g.Key.Type, g.Key.Direction!, g.Sum(x => x.Row.Quantity), g.Count()))
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.OrderByDescending(r => r.Units)
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.ToList();
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var ledgerSource = movements.Take(LedgerSize).ToList();
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var locationIds = ledgerSource
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.SelectMany(x => new[]
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{
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(x.Row.FromLocationId, x.Row.FromLocationType),
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(x.Row.ToLocationId, x.Row.ToLocationType),
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})
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.Where(l => l.Item1.HasValue && l.Item2 is LocationType t && t != LocationType.External)
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.Select(l => l.Item1!.Value);
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var locationNames = await repo.GetLocationNamesAsync(locationIds);
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var userNames = await repo.GetUserNamesAsync(ledgerSource.Select(x => x.Row.CreatedBy));
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var ledger = ledgerSource.Select(x => new VehicleDashboardLedgerRow(
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x.Row.Id, x.Row.CreatedAt, x.Row.ItemId, x.Row.ItemName, x.Row.Sku,
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x.Row.Type, x.Direction!, x.Row.Quantity,
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SideName(x.Row.Type, x.Row.FromLocationId, x.Row.FromLocationType, locationNames, isFrom: true),
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SideName(x.Row.Type, x.Row.ToLocationId, x.Row.ToLocationType, locationNames, isFrom: false),
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x.Row.ReferenceId, ReferenceKind(x.Row.Type),
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x.Row.ReasonCode, userNames.GetValueOrDefault(x.Row.CreatedBy, "—"))).ToList();
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// ── Drivers ────────────────────────────────────────────────────────
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var driverProfiles = (await repo.GetDriversAsync(rides.Select(r => r.DriverProfileId)))
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.ToDictionary(d => d.Id);
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var drivers = rides
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.GroupBy(r => r.DriverProfileId)
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.Where(g => driverProfiles.ContainsKey(g.Key))
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.Select(g =>
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{
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var d = driverProfiles[g.Key];
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return new VehicleDashboardDriver(
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d.Id, d.Name, d.LicenseNumber, d.LicenseExpiry, d.MedicalClearanceExpiry, d.IsActive,
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g.Count(), g.Sum(Km), g.Max(r => r.StartedAt ?? r.CreatedAt));
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})
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.OrderByDescending(d => d.Rides)
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.ToList();
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// ── Assemble ───────────────────────────────────────────────────────
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var settled = delivered + failed;
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var kpis = new VehicleDashboardKpis(
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rides.Count, rides.Count(r => r.Status == RideStatus.Closed), rides.Count(r => r.Status == RideStatus.Cancelled),
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rides.Sum(Km),
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tasks.Count, delivered, failed, pending,
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settled == 0 ? 0m : Math.Round(delivered * 100m / settled, 1),
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deliveredValue, collections.Sum(c => c.Amount),
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stock.Sum(r => r.Quantity), stock.Sum(r => r.Value),
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movements.Where(x => x.Row.Type == MovementType.Load && x.Direction == "In").Sum(x => x.Row.Quantity),
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movements.Where(x => x.Row.Type == MovementType.Sale && x.Direction == "Out").Sum(x => x.Row.Quantity));
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var customerReturnUnits = movements
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.Where(x => x.Row.Type == MovementType.CustomerReturn && x.Direction == "In")
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.Sum(x => x.Row.Quantity);
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return new VehicleDashboardResponse(
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new VehicleResponse(vehicle.Id, vehicle.RegNumber, vehicle.NumberPlate, vehicle.Type, vehicle.IsActive, vehicle.CreatedAt),
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await repo.GetWarehouseRefAsync(vehicle.DefaultWarehouseId),
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await repo.GetMobileWarehouseAsync(id),
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openRide is null ? null : new VehicleDashboardCurrentRide(
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openRide.Id, openRide.DriverName, openRide.StartedAt, openRide.MeterStart,
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openRide.Tasks, openRide.Delivered, openRide.Failed),
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new VehicleDashboardPeriod(fromDate, toDate),
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kpis, stock, rideRows, dailyDeliveries, dailyMovement, byType, ledger, cancelReasons,
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collections.Select(c => new VehicleDashboardCollection(c.Method, c.Amount, c.Count))
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.OrderByDescending(c => c.Amount).ToList(),
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new VehicleDashboardReturns(returnTotals.ReturnCount, returnTotals.CreditValue, returnTotals.Units, customerReturnUnits),
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topStores, drivers);
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}
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private static string? DirectionOf(VehicleMovementRow m, Guid vehicleId) =>
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m.ToLocationId == vehicleId && m.FromLocationId != vehicleId ? "In"
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: m.FromLocationId == vehicleId && m.ToLocationId != vehicleId ? "Out"
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: null;
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private static string? ReferenceKind(MovementType type) => type switch
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{
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MovementType.Load => "Loading Sheet",
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MovementType.Sale => "Order",
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MovementType.CustomerReturn => "Return",
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_ => null,
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};
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private static string SideName(
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MovementType type, Guid? id, LocationType? locationType, Dictionary<Guid, string> names, bool isFrom)
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{
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if (id is not Guid locId || locationType is not LocationType lt) return "—";
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if (lt != LocationType.External) return names.GetValueOrDefault(locId, "—");
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return type switch
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{
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MovementType.Sale or MovementType.CustomerReturn => "Customer",
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MovementType.PurchaseReceipt or MovementType.PurchaseReturn => "Supplier",
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MovementType.Damage => "Written Off",
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MovementType.Adjustment => "Stock Adjustment",
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_ => isFrom ? "External Source" : "External Destination",
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};
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}
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}
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