Files
2026-07-21 14:41:46 +07:00

117 lines
4.4 KiB
C#

using Indotalent.ConfigBackEnd.Extensions;
using Indotalent.Data.Entities;
using Indotalent.Data.Enums;
using Microsoft.EntityFrameworkCore;
namespace Indotalent.Infrastructure.Database.Demo;
public static class PurchaseRequisitionSeeder
{
public static async Task GenerateDataAsync(AppDbContext context)
{
if (await context.PurchaseRequisition.AnyAsync()) return;
var random = new Random();
var entityName = nameof(PurchaseRequisition);
var vendors = await context.Vendor.Select(x => x.Id).ToListAsync();
var taxes = await context.Tax.Select(x => x.Id).ToListAsync();
var products = await context.Product.ToListAsync();
if (!vendors.Any() || !taxes.Any() || !products.Any()) return;
var dateFinish = DateTime.Now;
var dateStart = new DateTime(dateFinish.AddMonths(-11).Year, dateFinish.AddMonths(-11).Month, 1);
for (DateTime date = dateStart; date <= dateFinish; date = date.AddMonths(1))
{
DateTime[] requisitionDates = GetRandomDays(date.Year, date.Month, 4);
foreach (var requisitionDate in requisitionDates)
{
var status = GetRandomStatus(random);
var autoNo = await context.GenerateAutoNumberAsync(
entityName: entityName,
prefixTemplate: $"{entityName.ToShortNameConsonant(3)}/{{Year}}/"
);
var purchaseRequisition = new PurchaseRequisition
{
AutoNumber = autoNo,
RequisitionDate = requisitionDate,
RequisitionStatus = status,
Description = $"Requisition for {requisitionDate:MMMM yyyy}",
VendorId = GetRandomValue(vendors, random),
TaxId = GetRandomValue(taxes, random),
};
await context.PurchaseRequisition.AddAsync(purchaseRequisition);
int numberOfItems = random.Next(2, 5);
for (int i = 0; i < numberOfItems; i++)
{
var qty = (double)random.Next(2, 5);
var product = products[random.Next(products.Count)];
var purchaseRequisitionItem = new PurchaseRequisitionItem
{
PurchaseRequisitionId = purchaseRequisition.Id,
ProductId = product.Id,
Summary = product.AutoNumber,
UnitPrice = product.UnitPrice,
Quantity = qty,
Total = (product.UnitPrice ?? 0m) * (decimal)qty
};
await context.PurchaseRequisitionItem.AddAsync(purchaseRequisitionItem);
}
await context.SaveChangesAsync();
context.RecalculatePurchaseRequisition(purchaseRequisition.Id);
await context.SaveChangesAsync();
}
}
}
private static PurchaseRequisitionStatus GetRandomStatus(Random random)
{
var statuses = new[] {
PurchaseRequisitionStatus.Draft,
PurchaseRequisitionStatus.Cancelled,
PurchaseRequisitionStatus.Confirmed,
PurchaseRequisitionStatus.Ordered
};
var weights = new[] { 1, 1, 4, 1 };
int totalWeight = weights.Sum();
int randomNumber = random.Next(0, totalWeight);
for (int i = 0; i < statuses.Length; i++)
{
if (randomNumber < weights[i]) return statuses[i];
randomNumber -= weights[i];
}
return PurchaseRequisitionStatus.Confirmed;
}
private static string GetRandomValue(List<string> 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();
}
}