/// <summary>
/// Subscribes the user natural month asynchronous.
/// </summary>
/// <param name="user">The user.</param>
/// <param name="planId">The plan identifier.</param>
/// <param name="card">The card.</param>
/// <param name="description">The description.</param>
/// <param name="taxPercent">The tax percent.</param>
/// <returns></returns>
public async Task <string> SubscribeUserNaturalMonthAsync(SaasEcomUser user,
string planId, CreditCard card, string description, decimal taxPercent = 0)
{
var trialEnds = GetStartNextMonth();
if (string.IsNullOrEmpty(user.StripeCustomerId))
{
// Create a new customer in Stripe and save card
var stripeUser = (StripeCustomer)await _customerProvider.CreateCustomerAsync
(user, null, trialEnds, card.StripeToken);
// Add subscription Id to the user
user.StripeCustomerId = stripeUser.Id;
await _cardDataService.AddAsync(card);
}
else if (!string.IsNullOrEmpty(card.StripeToken))
{
// Update the default card for the user
_customerProvider.UpdateCustomer(user, card);
card.SaasEcomUserId = user.Id;
await _cardDataService.AddOrUpdateDefaultCardAsync(user.Id, card);
}
// Create pro-rata charge for the remaining of the month
var amountInCents = await CalculateProRata(planId);
var planCurrency = await GetPlanCurrency(planId);
// If Charge succeeds -> Create Subscription
string error;
if (this._chargeProvider.CreateCharge(amountInCents, planCurrency, description, user.StripeCustomerId, out error))
{
// Create Subscription
var subscriptionId = _subscriptionProvider.SubscribeUser(user, planId, trialEnds, taxPercent);
var subscription = await _subscriptionDataService.SubscribeUserAsync
(user, planId, trialEnds, taxPercent, subscriptionId);
// Update tax percent on stripe
if (subscription.TaxPercent > 0)
{
await this.UpdateSubscriptionTax(user, subscription.StripeId, subscription.TaxPercent);
}
}
else
{
return(error);
}
return(null);
}
/// <summary>
/// Subscribe an existing user to a plan.
/// </summary>
/// <param name="user">Application User</param>
/// <param name="planId">Stripe plan Id</param>
/// <param name="creditCard">Credit card to pay this subscription.</param>
/// <param name="trialInDays">The trial in days.</param>
/// <param name="taxPercent">The tax percent.</param>
/// <returns></returns>
private async Task <Subscription> SubscribeUserAsync(SaasEcomUser user, string planId, CreditCard creditCard, int trialInDays = 0, decimal taxPercent = 0)
{
// Save payment details
if (creditCard != null)
{
if (creditCard.Id == 0)
{
await _cardProvider.AddAsync(user, creditCard);
}
else
{
await _cardProvider.UpdateAsync(user, creditCard);
}
}
// Save subscription details
var subscriptionId = _subscriptionProvider.SubscribeUser
(user, planId, trialInDays: trialInDays, taxPercent: taxPercent); // Stripe
var subscription = await this._subscriptionDataService.SubscribeUserAsync(user, planId, trialInDays, taxPercent, subscriptionId); // DB
return(subscription);
}
