sanitize focus values (#52)

src/datasources/product-api.ts

@@ -18,7 +18,7 @@ import {
   ProductProportionsInput,
 } from '../types/product-types';
 import { Maybe } from '../types/types';
-import { booleanStringField, nullOrNumber } from './utils';
+import { booleanStringField, nullOrNumber, roundOrDefaultTo } from './utils';
 import { UserInputError } from 'apollo-server';
 
 const MINUTE = 60;
@@ -99,10 +99,15 @@ export class ProductAPI extends BaseSQLDataSource {
     fields['marginWidthMin'] = nullOrNumber(fields['marginWidthMin'] ?? null);
     fields['marginHeightMax'] = nullOrNumber(fields['marginHeightMax'] ?? null);
     fields['marginHeightMin'] = nullOrNumber(fields['marginHeightMin'] ?? null);
-    fields['focusXpoint2'] = nullOrNumber(fields['focusXpoint2'] ?? null);
-    fields['focusYpoint2'] = nullOrNumber(fields['focusYpoint2'] ?? null);
     fields['focusXpoint'] = nullOrNumber(fields['focusXpoint'] ?? null);
     fields['focusYpoint'] = nullOrNumber(fields['focusYpoint'] ?? null);
+
+    // Focus points values are in %.
+    // Should be rounded to two decimals. Is sometimes missing in DB.
+    // If missing should be treated as 50%, 50%
+    fields['focusXpoint2'] = roundOrDefaultTo(fields['focusXpoint2'], 2, 50);
+    fields['focusYpoint2'] = roundOrDefaultTo(fields['focusYpoint2'], 2, 50);
+
     fields['photowallResolution'] = nullOrNumber(
       fields['photowallResolution'] ?? null,
     );

src/datasources/utils.ts

@@ -15,6 +15,11 @@ function isBoolean(n: InputType | boolean) {
   return false;
 }
 
+function roundToDecimals(number: number, decimalPlaces: number) {
+  const factor = Math.pow(10, decimalPlaces);
+  return Math.round((number + Number.EPSILON) * factor) / factor;
+}
+
 export function convertToPossibleType(n: InputType) {
   if ('' === n) return '';
   if (isBoolean(n)) return Boolean(n);
@@ -32,3 +37,15 @@ export function booleanStringField(v: string | null) {
   }
   return true;
 }
+
+export function roundOrDefaultTo(
+  v: string | null,
+  decimalPlaces: number,
+  defaultValue: number,
+) {
+  if (!v) {
+    return defaultValue;
+  }
+  const number = parseFloat(v);
+  return roundToDecimals(number, decimalPlaces);
+}