Khwezi Mngoma
504 lines
20 KiB
C#
504 lines
20 KiB
C#
using LiteCharms.Features.Abstractions;
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using LiteCharms.Features.MidrandBooks.Extensions;
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using LiteCharms.Features.MidrandBooks.Orders.Models;
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using LiteCharms.Features.MidrandBooks.Postgres;
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using LiteCharms.Features.Models;
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namespace LiteCharms.Features.MidrandBooks.Orders;
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public sealed class OrderService(IDbContextFactory<MidrandBooksDbContext> contextFactory) : IService
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{
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public async ValueTask<Result<long>> CreateOrderAsync(long customerId, CreateOrder request, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (!await context.Customers.AnyAsync(c => c.Id == customerId, cancellationToken))
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return Result.Fail<long>("Customer not found.");
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var order = context.Orders.Add(new Entities.Order
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{
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CustomerId = customerId,
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Status = OrderStatus.Pending,
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Total = request.TotalPrice
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});
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return await context.SaveChangesAsync(cancellationToken) > 0
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? Result.Ok(order.Entity.Id)
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: Result.Fail<long>("Failed to create order.");
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}
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catch (Exception ex)
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{
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return Result.Fail<long>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<long>> AddItemToOrderAsync(long orderId, CreateOrderItem request, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (!await context.Orders.AnyAsync(o => o.Id == orderId, cancellationToken))
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return Result.Fail<long>("Order not found.");
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if (!await context.Books.AnyAsync(ab => ab.Id == request.AuthorBookId, cancellationToken))
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return Result.Fail<long>("Author book not found.");
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if (!await context.Prices.AnyAsync(pp => pp.Id == request.ProductPriceId, cancellationToken))
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return Result.Fail<long>("Product price not found.");
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var existingItem = await context.OrderItems.FirstOrDefaultAsync(i => i.ProductPriceId == request.ProductPriceId && i.OrderId == orderId, cancellationToken);
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if (existingItem is not null)
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{
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existingItem.Quantity += request.Quantity;
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return await context.SaveChangesAsync(cancellationToken) > 0
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? Result.Ok(existingItem.Id)
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: Result.Fail<long>("Update existing order item.");
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}
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var orderItem = context.OrderItems.Add(new Entities.OrderItem
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{
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OrderId = orderId,
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AuthorBookId = request.AuthorBookId,
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ProductPriceId = request.ProductPriceId,
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Quantity = request.Quantity
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});
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return await context.SaveChangesAsync(cancellationToken) > 0
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? Result.Ok(orderItem.Entity.Id)
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: Result.Fail<long>("Failed to add item to order.");
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}
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catch (Exception ex)
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{
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return Result.Fail<long>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> AddItemsToOrderAsync(long orderId, CreateOrderItem[] items, CancellationToken cancellationToken = default)
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{
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try
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{
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if (items.Length == 0)
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return Result.Fail("No items to add.");
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (!await context.Orders.AnyAsync(o => o.Id == orderId, cancellationToken))
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return Result.Fail("Order not found.");
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foreach (var item in items)
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{
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if (!await context.Books.AnyAsync(ab => ab.Id == item.AuthorBookId, cancellationToken))
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return Result.Fail($"Author book with ID {item.AuthorBookId} not found.");
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if (!await context.Prices.AnyAsync(pp => pp.Id == item.ProductPriceId, cancellationToken))
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return Result.Fail($"Product price with ID {item.ProductPriceId} not found.");
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var existingItem = await context.OrderItems.FirstOrDefaultAsync(i => i.ProductPriceId == item.ProductPriceId && i.OrderId == orderId, cancellationToken);
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if (existingItem is not null)
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existingItem.Quantity += item.Quantity;
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else
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context.OrderItems.Add(new Entities.OrderItem
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{
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OrderId = orderId,
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AuthorBookId = item.AuthorBookId,
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ProductPriceId = item.ProductPriceId,
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Quantity = item.Quantity
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});
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await context.SaveChangesAsync(cancellationToken);
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}
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return Result.Ok();
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> RemoveItemFromOrderAsync(long orderId, long orderItemId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var rowsDeleted = await context.OrderItems
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.Where(oi => oi.Id == orderItemId && oi.OrderId == orderId)
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.ExecuteDeleteAsync(cancellationToken);
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return rowsDeleted > 0
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? Result.Ok()
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: Result.Fail("Order item not found or failed to remove.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> ClearOrderItemsAsync(long orderId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var deletedItems = await context.OrderItems.Where(oi => oi.OrderId == orderId)
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.ExecuteDeleteAsync(cancellationToken);
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return await context.SaveChangesAsync(cancellationToken) > 0
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? Result.Ok()
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: Result.Fail("Failed to clear order items.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> CancelOrderAsync(long orderId, CancellationToken cancellationToken = default) =>
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await UpdateOrderStatusAsync(orderId, OrderStatus.Cancelled, cancellationToken);
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public async ValueTask<Result<Order>> GetPendingOrderAsync(long customerId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var order = await context.Orders.AsNoTracking()
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.Where(o => o.Status == OrderStatus.Pending && o.CustomerId == customerId)
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.OrderByDescending(o => o.Id)
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.FirstOrDefaultAsync(cancellationToken);
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return order is not null
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? Result.Ok(order.ToModel())
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: Result.Fail<Order>("Order not found.");
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}
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catch (Exception ex)
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{
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return Result.Fail<Order>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<Order>> GetOrderAsync(long orderId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var order = await context.Orders.AsNoTracking().FirstOrDefaultAsync(o => o.Id == orderId, cancellationToken);
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return order is not null
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? Result.Ok(order.ToModel())
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: Result.Fail<Order>("Order not found.");
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}
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catch (Exception ex)
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{
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return Result.Fail<Order>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<OrderItem[]>> GetOrderItemsAsync(long orderId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var orderItems = await context.OrderItems
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.Where(o => o.OrderId == orderId)
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.ToListAsync(cancellationToken);
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return orderItems.Count > 0
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? Result.Ok(orderItems.Select(i => i.ToModel()).ToArray())
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: Result.Fail<OrderItem[]>("Order item not found or failed to remove.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<Order[]>> GetOrdersByCustomerAsync(long customerId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (!await context.Customers.AnyAsync(c => c.Id == customerId, cancellationToken))
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return Result.Fail<Order[]>("Customer not found.");
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var orders = await context.Orders
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.AsNoTracking()
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.Where(o => o.CustomerId == customerId)
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.ToListAsync(cancellationToken);
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return Result.Ok(orders.Select(o => o.ToModel()).ToArray());
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}
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catch (Exception ex)
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{
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return Result.Fail<Order[]>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<Order[]>> GetOrdersAsync(DateRange range, int index, CancellationToken cancellationToken = default)
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{
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try
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{
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var fromDate = range.From.ToDateTime(TimeOnly.MinValue, DateTimeKind.Utc);
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var toDate = range.To.ToDateTime(TimeOnly.MaxValue, DateTimeKind.Utc);
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var orders = await context.Orders
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.AsNoTracking()
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.Where(o => o.CreatedAt >= fromDate && o.CreatedAt <= toDate)
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.Skip(index).Take(range.MaxRecords)
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.ToListAsync(cancellationToken);
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return Result.Ok(orders.Select(o => o.ToModel()).ToArray());
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}
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catch (Exception ex)
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{
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return Result.Fail<Order[]>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> UpdateOrderStatusAsync(long orderId, OrderStatus newStatus, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var rowsUpdated = await context.Orders
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.Where(o => o.Id == orderId)
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.ExecuteUpdateAsync(setters => setters
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.SetProperty(o => o.Status, newStatus)
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.SetProperty(o => o.UpdatedAt, DateTime.UtcNow), cancellationToken);
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return rowsUpdated > 0
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? Result.Ok()
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: Result.Fail("Order not found or status update failed.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<long>> AddShippingToOrderAsync(long orderId, CreateShipping request, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (!await context.Orders.AnyAsync(o => o.Id == orderId, cancellationToken))
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return Result.Fail("Order not found.");
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if (!await context.Addresses.AnyAsync(a => a.Id == request.AddressId, cancellationToken))
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return Result.Fail("Address not found.");
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if (!await context.ShippingProviders.AnyAsync(sp => sp.Id == request.ShippingProviderId && sp.Enabled, cancellationToken))
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return Result.Fail("Shipping provider not found or disabled.");
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if (await context.Shippings.AnyAsync(s => s.OrderId == orderId, cancellationToken))
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return Result.Fail("Shipping already exists for this order.");
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var shipping = context.Shippings.Add(new Entities.Shipping
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{
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OrderId = orderId,
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AddressId = request.AddressId,
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ShippingProviderId = request.ShippingProviderId,
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Status = ShippingStatuses.Pending,
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TrackingNumber = request.TrackingNumber
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});
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return await context.SaveChangesAsync(cancellationToken) > 0
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? Result.Ok()
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: Result.Fail("Failed to add shipping to order.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> UpdateShippingStatusAsync(long orderId, ShippingStatuses newStatus, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var rowsUpdated = await context.Shippings
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.Where(s => s.OrderId == orderId)
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.ExecuteUpdateAsync(setters => setters
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.SetProperty(s => s.Status, newStatus)
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.SetProperty(s => s.UpdatedAt, DateTime.UtcNow),
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cancellationToken);
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return rowsUpdated > 0
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? Result.Ok()
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: Result.Fail("Shipping not found for this order or status update failed.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async Task<Result<Shipping>> GetShippingByOrderIdAsync(long orderId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var shipping = await context.Shippings
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.AsNoTracking()
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.FirstOrDefaultAsync(s => s.OrderId == orderId, cancellationToken);
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return shipping is not null
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? Result.Ok(shipping.ToModel())
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: Result.Fail<Shipping>("Shipping not found for this order.");
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}
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catch (Exception ex)
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{
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return Result.Fail<Shipping>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async Task<Result> RemoveShippingFromOrderAsync(long orderId, long shippingId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var rowsDeleted = await context.Shippings
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.Where(s => s.Id == shippingId && s.OrderId == orderId)
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.ExecuteDeleteAsync(cancellationToken);
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return rowsDeleted > 0
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? Result.Ok()
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: Result.Fail("Shipping record not found for this order.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> UpdateShippingTrackingNumberAsync(long orderId, long shippingId, string trackingNumber, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var rowsUpdated = await context.Shippings
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.Where(s => s.Id == shippingId && s.OrderId == orderId)
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.ExecuteUpdateAsync(setters => setters
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.SetProperty(s => s.TrackingNumber, trackingNumber)
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.SetProperty(s => s.UpdatedAt, DateTime.UtcNow), cancellationToken);
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return rowsUpdated > 0
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? Result.Ok()
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: Result.Fail("Shipping record not found for this order.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<long>> CreateShippingProviderAsync(CreateShippingProvider request, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (await context.ShippingProviders.AnyAsync(sp => sp.Type == request.Type, cancellationToken))
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return Result.Fail("Shipping provider with the same type already exists.");
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var shippingProvider = context.ShippingProviders.Add(new Entities.ShippingProvider
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{
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CreatedAt = DateTime.UtcNow,
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Name = request.Name,
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Type = request.Type,
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Price = request.Price,
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TrackingUrl = request.TrackingUrl
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});
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return await context.SaveChangesAsync(cancellationToken) > 0
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? Result.Ok(shippingProvider.Entity.Id)
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: Result.Fail("Failed to create shipping provider.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<ShippingProvider[]>> GetShippingProvidersAsync(bool isEnabled, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var providers = await context.ShippingProviders.AsNoTracking().Where(sp => sp.Enabled == isEnabled)
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.ToListAsync(cancellationToken);
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return Result.Ok(providers.Select(sp => sp.ToModel()).ToArray());
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}
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catch (Exception ex)
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{
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return Result.Fail<ShippingProvider[]>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result<ShippingProvider>> GetShippingProviderAsync(long providerId, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var provider = await context.ShippingProviders.AsNoTracking()
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.FirstOrDefaultAsync(sp => sp.Id == providerId, cancellationToken);
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return provider is not null
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? Result.Ok(provider.ToModel())
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: Result.Fail<ShippingProvider>("Shipping provider not found.");
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}
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catch (Exception ex)
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{
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return Result.Fail<ShippingProvider>(new Error(ex.Message).CausedBy(ex));
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}
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}
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public async ValueTask<Result> UpdateShippingProviderAsync(UpdateShippingProvider request, CancellationToken cancellationToken = default)
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{
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try
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{
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await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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var rowsUpdated = await context.ShippingProviders
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.Where(sp => sp.Id == request.ProviderId)
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.ExecuteUpdateAsync(setters => setters
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.SetProperty(sp => sp.Name, request.Name)
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.SetProperty(sp => sp.Price, request.Price)
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.SetProperty(sp => sp.TrackingUrl, request.TrackingUrl)
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.SetProperty(sp => sp.Enabled, request.Enabled)
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.SetProperty(sp => sp.UpdatedAt, DateTime.UtcNow), cancellationToken);
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return rowsUpdated > 0
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? Result.Ok()
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: Result.Fail("Shipping provider not found.");
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}
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catch (Exception ex)
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{
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return Result.Fail(new Error(ex.Message).CausedBy(ex));
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}
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}
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}
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