fix doc weight to show real doc instead of forcing 35-51 range and also fixed bug target weight using total days as reference for target weight instead of doc weight

utils/weight.ts

@@ -41,34 +41,34 @@ export function formatWeight(
 }
 
 /**
- * Picks the standard table whose harvest day is closest to the cycle's
- * `total_days`. Every row carries values for days 1..35, so a 35-, 42- or
- * 45-day cycle all map onto a matching table.
+ * Picks the Ross 308 standard row for a DOC (chick-in) weight.
+ * Table rows are keyed by DOC weight (g) 35..51; columns are age days 1..35.
+ * Weights outside that range use the closest available row (e.g. 20→35, 60→51).
  */
-function pickStandardValues(totalDays: number): number[] {
+function pickStandardValues(docWeight: number): number[] {
   const rows = weightStandardData.data;
   if (rows.length === 0) return [];
-  const exact = rows.find((row) => row.day === totalDays);
+  const exact = rows.find((row) => row.day === docWeight);
   if (exact) return exact.values;
   let closest = rows[0]!;
   for (const row of rows) {
-    if (Math.abs(row.day - totalDays) < Math.abs(closest.day - totalDays)) {
+    if (Math.abs(row.day - docWeight) < Math.abs(closest.day - docWeight)) {
       closest = row;
     }
   }
   return closest.values;
 }
 
-/** Target body weight (grams) for a cycle day from the Ross 308 standard. */
-export function getTargetWeightForAge(age: number, totalDays: number): number | null {
-  const values = pickStandardValues(totalDays);
+/** Target body weight (grams) for a given age from the Ross 308 DOC-weight table. */
+export function getTargetWeightForAge(age: number, docWeight: number): number | null {
+  const values = pickStandardValues(docWeight);
   if (age < 1 || age > values.length) return null;
   return values[age - 1] ?? null;
 }
 
-/** Target daily weight gain (grams/day) for a cycle day from the standard. */
-export function getTargetGainForAge(age: number, totalDays: number): number | null {
-  const values = pickStandardValues(totalDays);
+/** Target daily weight gain (grams/day) for a given age from the standard. */
+export function getTargetGainForAge(age: number, docWeight: number): number | null {
+  const values = pickStandardValues(docWeight);
   if (age < 2 || age > values.length) return null;
   const current = values[age - 1];
   const previous = values[age - 2];