Keep track of API usage in user accounts, improve approval mechanism (#95)

app/lib/supabase/peanuts.ts

@@ -0,0 +1,37 @@
+import { getSupabase } from './client';
+
+export async function supabaseAddRefund(peanuts: number) {
+  const supabase = getSupabase();
+
+  // Get the current user ID if available
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+  const userId = user?.id || null;
+
+  const { data, error } = await supabase.from('profiles').select('peanuts_refunded').eq('id', userId).single();
+
+  if (error) {
+    console.error('AddPeanutsRefund:ErrorFetchingData', { error });
+    return;
+  }
+
+  const currentPeanutsRefunded = data.peanuts_refunded;
+  if (typeof currentPeanutsRefunded !== 'number') {
+    console.error('AddPeanutsRefund:InvalidPeanutsRefunded', { currentPeanutsRefunded });
+    return;
+  }
+
+  const newPeanutsRefunded = Math.round(currentPeanutsRefunded + peanuts);
+
+  // Note: this is not atomic.
+  // https://linear.app/replay/issue/PRO-1122/update-api-usage-atomically
+  const { error: updateError } = await supabase
+    .from('profiles')
+    .update({ peanuts_refunded: newPeanutsRefunded })
+    .eq('id', userId);
+
+  if (updateError) {
+    console.error('AddPeanutsRefund:ErrorUpdatingData', { updateError });
+  }
+}