collab: Fix issues with syncing LLM usage to Stripe (#18970)

This PR fixes some issues with our previous approach to synching LLM
usage over to Stripe.

We now have a separate LLM access price in Stripe that is a marker price
to allow us to create the initial subscription with that as its
subscription item

We then dynamically set the LLM usage price during the reconciliation
sync based on the usage for the current month.

Release Notes:

- N/A

---------

Co-authored-by: Antonio <antonio@zed.dev>
Co-authored-by: Richard <richard@zed.dev>
This commit is contained in:
Marshall Bowers 2024-10-09 19:15:38 -04:00 committed by GitHub
parent 69711660ab
commit cae548a50d
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GPG key ID: B5690EEEBB952194
4 changed files with 36 additions and 21 deletions

View file

@ -197,10 +197,10 @@ async fn create_billing_subscription(
.await?
.ok_or_else(|| anyhow!("user not found"))?;
let Some((stripe_client, stripe_price_id)) = app
let Some((stripe_client, stripe_access_price_id)) = app
.stripe_client
.clone()
.zip(app.config.stripe_llm_usage_price_id.clone())
.zip(app.config.stripe_llm_access_price_id.clone())
else {
log::error!("failed to retrieve Stripe client or price ID");
Err(Error::http(
@ -232,8 +232,8 @@ async fn create_billing_subscription(
params.customer = Some(customer_id);
params.client_reference_id = Some(user.github_login.as_str());
params.line_items = Some(vec![CreateCheckoutSessionLineItems {
price: Some(stripe_price_id.to_string()),
quantity: Some(0),
price: Some(stripe_access_price_id.to_string()),
quantity: Some(1),
..Default::default()
}]);
let success_url = format!("{}/account", app.config.zed_dot_dev_url());
@ -787,22 +787,33 @@ async fn update_stripe_subscription(
monthly_spending.saturating_sub(FREE_TIER_MONTHLY_SPENDING_LIMIT);
let new_quantity = (monthly_spending_over_free_tier.0 as f32 / 100.).ceil();
Subscription::update(
stripe_client,
&subscription_id,
stripe::UpdateSubscription {
items: Some(vec![stripe::UpdateSubscriptionItems {
// TODO: Do we need to send up the `id` if a subscription item
// with this price already exists, or will Stripe take care of
// it?
id: None,
price: Some(stripe_llm_usage_price_id.to_string()),
quantity: Some(new_quantity as u64),
..Default::default()
}]),
let current_subscription = Subscription::retrieve(stripe_client, &subscription_id, &[]).await?;
let mut update_params = stripe::UpdateSubscription {
proration_behavior: Some(
stripe::generated::billing::subscription::SubscriptionProrationBehavior::None,
),
..Default::default()
};
if let Some(existing_item) = current_subscription.items.data.iter().find(|item| {
item.price.as_ref().map_or(false, |price| {
price.id == stripe_llm_usage_price_id.as_ref()
})
}) {
update_params.items = Some(vec![stripe::UpdateSubscriptionItems {
id: Some(existing_item.id.to_string()),
quantity: Some(new_quantity as u64),
..Default::default()
},
)
.await?;
}]);
} else {
update_params.items = Some(vec![stripe::UpdateSubscriptionItems {
price: Some(stripe_llm_usage_price_id.to_string()),
quantity: Some(new_quantity as u64),
..Default::default()
}]);
}
Subscription::update(stripe_client, &subscription_id, update_params).await?;
Ok(())
}