prs/prs.desktop/Panels/Reservation Management/StockSelectionPage.xaml.cs

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using com.sun.tools.javac.util;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.Wpf;
using javax.swing;

namespace PRSDesktop;

public class StockSelectionItem : JobRequisitionItemSelectionItem
{
    public string Area => Holding?.Location?.Area?.Code ?? "";

    public string Requisition => JRI is null
        ? "Unrequisitioned Items"
        : $"{JRI.Job.JobNumber}: #{JRI.Requisition.Number} ({JRI.Requisition.Description})";

    public string Location => Holding?.Location?.Code ?? "";

    public string Style => Holding?.Style?.Code ?? "";

    public StockHolding? Holding { get; set; }
}

public class StockSelectionGrid : JobRequisitionItemSelectionGrid<StockSelectionItem>
{
    public bool ShowRequisition { get; set; } = false;

    public override DynamicGridColumns GenerateColumns()
    {
        var columns = new DynamicGridColumns();
        if (ShowRequisition)
        {
            columns.Add<StockSelectionItem, string>(x => x.Area, 120, "Area", "", Alignment.MiddleCenter);
            columns.Add<StockSelectionItem, string>(x => x.Location, 120, "Location", "", Alignment.MiddleCenter);
            columns.Add<StockSelectionItem, string>(x => x.Style, 120, "Style", "", Alignment.MiddleCenter);
            columns.Add<StockSelectionItem, string>(x => x.Requisition, 0, "Requisition", "", Alignment.MiddleLeft);
        }
        else
        {
            columns.Add<StockSelectionItem, string>(x => x.Area, 0, "Area", "", Alignment.MiddleCenter);
            columns.Add<StockSelectionItem, string>(x => x.Location, 0, "Location", "", Alignment.MiddleCenter);
            columns.Add<StockSelectionItem, string>(x => x.Style, 0, "Style", "", Alignment.MiddleCenter);
        }

        return columns;
    }

    protected override void Reload(
    	Filters<StockSelectionItem> criteria, Columns<StockSelectionItem> columns, ref SortOrder<StockSelectionItem>? sort,
    	CancellationToken token, Action<CoreTable?, Exception?> action)
    {
        foreach(var item in Items)
        {
            item.Issued = 0;
            item.Quantity = item.Holding.Units;
            item.MaxValue = item.Quantity;
        }

        base.Reload(criteria, columns, ref sort, token, action);
    }
}

/// <summary>
/// Interaction logic for JobRequisitionStockSelectionPage.xaml
/// </summary>
public partial class StockSelectionPage : ThemableWindow, INotifyPropertyChanged
{
    public class Holding(StockHolding holding, Guid jobRequisitionItemID)
    {
        public StockHolding StockHolding { get; set; } = holding;

        public Guid JobRequisitionItemID { get; set; } = jobRequisitionItemID;
    }

    public bool CanSave => Grid.TotalIssued > 0;

    public JobRequisitionItem Item { get; set; }

    public Guid IssuingJobID { get; set; }

    private bool Allocated = false;

    private bool _canEdit = true;
    public bool CanEdit
    {
        get => _canEdit;
        private set
        {
            _canEdit = value;
            UpdateItems();
        }
    }

    private void UpdateItems()
    {
        foreach(var item in Grid.Items)
        {
            item.Editable = _canEdit && item.Quantity.IsEffectivelyGreaterThan(0.0);
        }
    }

    public bool ShowRequisition
    {
        get => Grid.ShowRequisition;
        set => Grid.ShowRequisition = value;
    }

    public StockSelectionPage(IEnumerable<Holding> holdings, JobRequisitionItem item, Job issuingJob, bool allocated = false)
    {
        InitializeComponent();

        Item = item;

        var jris = Client.Query(
            new Filter<JobRequisitionItem>(x => x.ID).InList(holdings.Select(x => x.JobRequisitionItemID).Where(x => x != Guid.Empty).ToArray()),
            Columns.None<JobRequisitionItem>()
                .Add(x => x.ID)
                .Add(x => x.Job.JobNumber)
                .Add(x => x.Requisition.Number)
                .Add(x => x.Requisition.Description))
            .ToObjects<JobRequisitionItem>().ToDictionary(x => x.ID);

        Grid.Items = holdings.Select(x => new StockSelectionItem
        {
            JRI = jris.GetValueOrDefault(x.JobRequisitionItemID)
                ?? new(),
            Holding = x.StockHolding
        }).ToList();

        IssuingJobID = issuingJob.ID;
        jobLbl.Text = $"Taking stock from Job: {issuingJob.Name} ({issuingJob.JobNumber})";

        Allocated = allocated;

        if (allocated)
        {
            CanEdit = Security.IsAllowed<CanEditAllocatedJobRequisitions>();
            ShowRequisition = true;
            // availableUnitsLbl.Text = "Allocated";
            if (CanEdit)
            {
                // allocateLabel.Text = "Take";
            }
        }

        //UpdateItems();

        Grid.Refresh(true, true);
    }

    private void Grid_PropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        if(e.PropertyName == nameof(Grid.TotalIssued))
        {
            OnPropertyChanged(nameof(CanSave));
        }
    }

    private void OKButton_Click(object sender, RoutedEventArgs e)
    {
        if(Grid.TotalIssued <= 0)
        {
            MessageWindow.ShowMessage("Please select from at least one holding to reserve.", "Error", image: MessageWindow.WarningImage);
            return;
        }
        if (Allocated)
        {
            var result = MessageWindow.ShowYesNoCancel("You are attempting to take reserved stock that has already been allocated to job requisition items. " +
                "Are you sure you wish to proceed? (This will decrease the allocation for the job requisition item being taken from.)",
                "Confirm re-allocation");
            if(result != MessageWindowResult.Yes)
            {
                return;
            }
        }

        foreach (var item in Grid.Items.Where(x => x.Issued > 0))
        {
            CreateStockMovements(item);
        }

        DialogResult = true;
    }

    private void CreateStockMovements(StockSelectionItem item)
    {
        var batch = new StockMovementBatch
        {
            TimeStamp = DateTime.Now,
            Type = StockMovementBatchType.Transfer,
            Notes = $"Allocated to Job {Item.Job.JobNumber}"
        };
        Client.Save(batch, "Created for requisitioning stock");

        var issuing = CreateBaseMovement(item, batch.ID, item.JRI);
        issuing.Job.ID = IssuingJobID;
        issuing.Issued = item.Issued;
        issuing.JobRequisitionItem.ID = item.JRI?.ID ?? Guid.Empty;
        issuing.Type = StockMovementType.TransferOut;

        var receiving = CreateBaseMovement(item, batch.ID, item.JRI);
        receiving.Job.ID = Item.Job.ID;
        receiving.Received = item.Issued;
        receiving.JobRequisitionItem.ID = Item.ID;
        receiving.Type = StockMovementType.TransferIn;
        receiving.Transaction = issuing.Transaction;

        Client.Save(new StockMovement[] { issuing, receiving }, "Created from Reservation Management Screen");
    }

    private StockMovement CreateBaseMovement(StockSelectionItem item, Guid batchid, JobRequisitionItem? fromJRI)
    {
        var mvt = item.Holding.CreateMovement();

        mvt.Batch.ID = batchid;
        mvt.Employee.ID = App.EmployeeID;
        mvt.Date = DateTime.Now;
        mvt.Product.ID = Item.Product.ID;
        if(fromJRI is null)
        {
            mvt.Notes = $"Reservation Management Screen - allocating to Job {Item.Job.JobNumber} for Requisition Line";
        }
        else
        {
            mvt.Notes = $"Reservation Management Screen - allocating to Job {Item.Job.JobNumber} for Requisition Line from " +
                $"requisition '{fromJRI.Requisition.Number} - {fromJRI.Requisition.Description}' for Job {fromJRI.Job.JobNumber}";
        }
        mvt.Cost = item.Holding.AverageValue;
        return mvt;
    }

    private void CancelButton_Click(object sender, RoutedEventArgs e)
    {
        DialogResult = false;
    }

    public event PropertyChangedEventHandler? PropertyChanged;

    protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName = null)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }

    private void Grid_OnAfterRefresh(object sender, AfterRefreshEventArgs args)
    {
        UpdateItems();
    }
}