117 lines
4.2 KiB
C#
117 lines
4.2 KiB
C#
using Indotalent.ConfigBackEnd.Extensions;
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using Indotalent.Data.Entities;
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using Indotalent.Data.Enums;
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using Microsoft.EntityFrameworkCore;
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namespace Indotalent.Infrastructure.Database.Demo;
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public static class SalesQuotationSeeder
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{
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public static async Task GenerateDataAsync(AppDbContext context)
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{
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if (await context.SalesQuotation.AnyAsync()) return;
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var random = new Random();
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var entityName = nameof(SalesQuotation);
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var customers = await context.Customer.Select(x => x.Id).ToListAsync();
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var taxes = await context.Tax.Select(x => x.Id).ToListAsync();
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var products = await context.Product.ToListAsync();
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if (!customers.Any() || !taxes.Any() || !products.Any()) return;
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var dateFinish = DateTime.Now;
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var dateStart = new DateTime(dateFinish.AddMonths(-11).Year, dateFinish.AddMonths(-11).Month, 1);
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for (DateTime date = dateStart; date <= dateFinish; date = date.AddMonths(1))
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{
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DateTime[] quotationDates = GetRandomDays(date.Year, date.Month, 4);
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foreach (var quotationDate in quotationDates)
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{
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var status = GetRandomStatus(random);
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var autoNo = await context.GenerateAutoNumberAsync(
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entityName: entityName,
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prefixTemplate: $"{entityName.ToShortNameConsonant(3)}/{{Year}}/"
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);
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var salesQuotation = new SalesQuotation
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{
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AutoNumber = autoNo,
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QuotationDate = quotationDate,
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QuotationStatus = status,
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Description = $"Quotation for {quotationDate:MMMM yyyy}",
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CustomerId = GetRandomValue(customers, random),
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TaxId = GetRandomValue(taxes, random),
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};
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await context.SalesQuotation.AddAsync(salesQuotation);
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int numberOfItems = random.Next(2, 5);
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for (int i = 0; i < numberOfItems; i++)
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{
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var qty = (double)random.Next(2, 5);
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var product = products[random.Next(products.Count)];
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var salesQuotationItem = new SalesQuotationItem
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{
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SalesQuotationId = salesQuotation.Id,
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ProductId = product.Id,
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Summary = product.AutoNumber,
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UnitPrice = product.UnitPrice,
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Quantity = qty,
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Total = (product.UnitPrice ?? 0m) * (decimal)qty
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};
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await context.SalesQuotationItem.AddAsync(salesQuotationItem);
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}
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await context.SaveChangesAsync();
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context.RecalculateSalesQuotation(salesQuotation.Id);
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await context.SaveChangesAsync();
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}
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}
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}
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private static SalesQuotationStatus GetRandomStatus(Random random)
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{
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var statuses = new[] {
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SalesQuotationStatus.Draft,
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SalesQuotationStatus.Cancelled,
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SalesQuotationStatus.Confirmed,
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SalesQuotationStatus.Ordered
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};
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var weights = new[] { 1, 1, 4, 1 };
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int totalWeight = weights.Sum();
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int randomNumber = random.Next(0, totalWeight);
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for (int i = 0; i < statuses.Length; i++)
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{
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if (randomNumber < weights[i]) return statuses[i];
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randomNumber -= weights[i];
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}
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return SalesQuotationStatus.Confirmed;
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}
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private static string GetRandomValue(List<string> list, Random random)
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{
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return list[random.Next(list.Count)];
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}
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private static DateTime[] GetRandomDays(int year, int month, int count)
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{
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var random = new Random();
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int daysInMonthCount = DateTime.DaysInMonth(year, month);
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var daysInMonth = Enumerable.Range(1, daysInMonthCount).ToList();
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var selectedDays = new List<int>();
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for (int i = 0; i < count && daysInMonth.Count > 0; i++)
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{
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int day = daysInMonth[random.Next(daysInMonth.Count)];
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selectedDays.Add(day);
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daysInMonth.Remove(day);
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}
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return selectedDays.Select(day => new DateTime(year, month, day)).ToArray();
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}
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} |