initial commit

Infrastructure/Database/Demo/SalesOrderSeeder.cs

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+using Indotalent.ConfigBackEnd.Extensions;
+using Indotalent.Data.Entities;
+using Indotalent.Data.Enums;
+using Microsoft.EntityFrameworkCore;
+
+namespace Indotalent.Infrastructure.Database.Demo;
+
+public static class SalesOrderSeeder
+{
+    public static async Task GenerateDataAsync(AppDbContext context)
+    {
+        if (await context.SalesOrder.AnyAsync()) return;
+
+        var random = new Random();
+        var entityName = nameof(SalesOrder);
+        var customers = await context.Customer.Select(x => x.Id).ToListAsync();
+        var taxes = await context.Tax.Select(x => x.Id).ToListAsync();
+        var products = await context.Product.ToListAsync();
+
+        if (!customers.Any() || !taxes.Any() || !products.Any()) return;
+
+        var dateFinish = DateTime.Now;
+        var dateStart = new DateTime(dateFinish.AddMonths(-12).Year, dateFinish.AddMonths(-12).Month, 1);
+
+        for (DateTime date = dateStart; date < dateFinish; date = date.AddMonths(1))
+        {
+            DateTime[] transactionDates = GetRandomDays(date.Year, date.Month, 6);
+
+            foreach (DateTime transDate in transactionDates)
+            {
+                var autoNo = await context.GenerateAutoNumberAsync(
+                    entityName: entityName,
+                    prefixTemplate: $"{entityName.ToShortNameConsonant(3)}/{{Year}}/"
+                );
+
+                var salesOrder = new SalesOrder
+                {
+                    AutoNumber = autoNo,
+                    OrderDate = transDate,
+                    OrderStatus = GetHighProbabilityStatus(random),
+                    CustomerId = GetRandomValue(customers, random),
+                    TaxId = GetRandomValue(taxes, random),
+                };
+                await context.SalesOrder.AddAsync(salesOrder);
+
+                int numberOfProducts = random.Next(3, 6);
+                for (int i = 0; i < numberOfProducts; i++)
+                {
+                    var qty = (double)random.Next(2, 5);
+                    var product = products[random.Next(products.Count)];
+                    var salesOrderItem = new SalesOrderItem
+                    {
+                        SalesOrderId = salesOrder.Id,
+                        ProductId = product.Id,
+                        Summary = product.AutoNumber,
+                        UnitPrice = product.UnitPrice,
+                        Quantity = qty,
+                        Total = (product.UnitPrice ?? 0m) * (decimal)qty
+                    };
+                    await context.SalesOrderItem.AddAsync(salesOrderItem);
+                }
+
+                await context.SaveChangesAsync();
+
+                context.RecalculateSalesOrder(salesOrder.Id);
+                await context.SaveChangesAsync();
+            }
+        }
+    }
+
+    private static SalesOrderStatus GetHighProbabilityStatus(Random random)
+    {
+        int probability = random.Next(1, 101);
+
+        if (probability <= 90)
+        {
+            return SalesOrderStatus.Confirmed;
+        }
+        else
+        {
+            var otherStatuses = new[] { SalesOrderStatus.Draft, SalesOrderStatus.Cancelled, SalesOrderStatus.Archived };
+            return otherStatuses[random.Next(otherStatuses.Length)];
+        }
+    }
+
+    private static T GetRandomValue<T>(List<T> list, Random random)
+    {
+        return list[random.Next(list.Count)];
+    }
+
+    private static DateTime[] GetRandomDays(int year, int month, int count)
+    {
+        var random = new Random();
+        int daysInMonthCount = DateTime.DaysInMonth(year, month);
+        var daysInMonth = Enumerable.Range(1, daysInMonthCount).ToList();
+        var selectedDays = new List<int>();
+
+        for (int i = 0; i < count && daysInMonth.Count > 0; i++)
+        {
+            int day = daysInMonth[random.Next(daysInMonth.Count)];
+            selectedDays.Add(day);
+            daysInMonth.Remove(day);
+        }
+
+        return selectedDays.Select(day => new DateTime(year, month, day)).ToArray();
+    }
+}