Merge pull request #880 from jboolean/cut-color-costs

Cut color costs

backend/src/business/ledger/LedgerService.ts

@@ -6,7 +6,7 @@ import LedgerEntryType from '../../enum/LedgerEntryType';
 const RATE_LIMIT_LOOKBACK = 24 * 60 * 60 * 1000; // 24 hours
 
 // We allow this much usage in the lookback window
-const MAX_LOOKBACK_USAGES = 2;
+const MAX_LOOKBACK_USAGES = 1;
 
 const SINGLE_PHOTO_USAGE_AMOUNT_POSITIVE = 1;
 
@@ -137,7 +137,8 @@ export async function grantCredits(
   await ledgerRepository.save(entry);
 }
 
-const CENTS_PER_CREDIT = 10;
+const CENTS_PER_CREDIT = 20;
+const MAX_CREDITS_FOR_TIP = 15;
 
 /**
  * This exists because there is not a formal pay-for-credits flow in the app, but
@@ -159,7 +160,10 @@ export async function grantCreditsForTip(
   // Credits are granted at a fixed rate
   // Plus an amnesty for negative balances
 
-  const creditsFromPayment = Math.floor(amountCents / CENTS_PER_CREDIT);
+  const creditsFromPayment = Math.min(
+    Math.floor(amountCents / CENTS_PER_CREDIT),
+    MAX_CREDITS_FOR_TIP
+  );
 
   await grantCredits(
     userId,

frontend/src/screens/App/screens/CreditPurchaseModal/index.tsx

@@ -50,10 +50,10 @@ export default function CreditPurchaseModal(): JSX.Element {
 
         <div>
           <p>
-            Enjoy two free colorized photos per day using the best AI
-            colorization model available. After that, a small fee (equal to a
-            1948 subway ride) is required to cover the costs of the model.
-            Purchase tokens to keep exploring in color and support the site.
+            Enjoy one free colorized photo per day using the best AI
+            colorization model available. After that, a small fee is required to
+            cover the costs of the model. Purchase tokens to keep exploring in
+            color and support the site.
           </p>
 
           <p className={stylesheet.finePrint}>