public async Task <IActionResult> OnPost()
{
if (!ModelState.IsValid)
{
return(Page());
}
var user = await _userManager.FindByEmailAsync(Input.Username);
if (user == null)
{
ModelState.AddModelError("Input.Username", "Incorrect username or password.");
return(Page());
}
var result = await _signInManager.PasswordSignInAsync(user, Input.Password, false, false);
IdentityUser usr = new IdentityUser();
if (result.Succeeded)
{
// Add user id to current session cart
// Remove session id from cart at the same time
var sessionId = GetSessionId();
var cart = _ctx.Carts.Include(c => c.Products).FirstOrDefault(x => x.SessionId == sessionId);
if (cart != null)
{
var existingCart = _ctx.Carts.Include(c => c.Products).FirstOrDefault(x => x.UserId == user.Id);
// if user already has a cart, add products to the existing cart
if (existingCart != null)
{
foreach (var product in cart.Products.ToList())
{
// the product should not already exist in the cart
if (!existingCart.Products.Any(cp => cp.ProductId == product.ProductId))
{
await _addToCart.Do(new AddToCart.Request()
{
ProductId = product.ProductId,
Qty = product.Qty,
UserMark = (user.Id, string.Empty)
});