From 564cae253a355331049d872b9e0f2d0b26ba7419 Mon Sep 17 00:00:00 2001
From: josh <josh@thewrightserver.net>
Date: Fri, 8 May 2026 09:36:29 -0400
Subject: [PATCH] Only estimate remaining after first audit, not from purchase
 date

Before any audit, bulk items show their full original weight with no
decay applied. The linear decay model only kicks in after the first
audit provides an actual data point. This prevents freshly added,
unopened items from showing misleading consumption estimates.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 web/src/components/ProductDetail.tsx | 2 +-
 web/src/types.ts                     | 7 +++----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/web/src/components/ProductDetail.tsx b/web/src/components/ProductDetail.tsx
index a9a48ab..60b269c 100644
--- a/web/src/components/ProductDetail.tsx
+++ b/web/src/components/ProductDetail.tsx
@@ -294,7 +294,7 @@ export function ProductDetail({
                   {cfg?.unit}). Re-audit to update.
                 </div>
               )}
-              {item.containerWeight != null && (
+              {item.containerWeight != null && last && (
                 <div
                   style={{
                     fontSize: 11,
diff --git a/web/src/types.ts b/web/src/types.ts
index 734968a..938eb88 100644
--- a/web/src/types.ts
+++ b/web/src/types.ts
@@ -211,16 +211,15 @@ export const helpers = {
       return p.countLastAudit ?? p.countOriginal;
     }
     const last = this.lastAudit(p);
-    const baseDate = last ? last.date : p.purchaseDate;
-    const baseValue = last ? last.value : p.weight;
+    if (!last) return p.weight;
     const daysSinceBase = Math.max(
       0,
-      Math.floor((+new Date(today) - +new Date(baseDate)) / 86_400_000),
+      Math.floor((+new Date(today) - +new Date(last.date)) / 86_400_000),
     );
     const expectedLifespan =
       p.type === "Flower" ? 35 : p.type === "Concentrate" ? 40 : 90;
     const dailyBurn = p.weight / expectedLifespan;
-    return Math.max(0, baseValue - dailyBurn * daysSinceBase);
+    return Math.max(0, last.value - dailyBurn * daysSinceBase);
   },
   pctRemaining(p: Item, today = TODAY_STR): number {
     if (p.kind === "discrete") {