fix: increase precision for shares display and input step in InvestPanel

src/app/api/admin/users/[userId]/reset/route.ts

@@ -2,6 +2,7 @@ import { NextRequest, NextResponse } from 'next/server'
 import { getServerSession } from 'next-auth'
 import { authOptions } from '@/lib/auth'
 import { prisma } from '@/lib/prisma'
+import { calcFundNav } from '@/lib/pricing'
 
 const STARTING_BALANCE = 2000
 
@@ -28,7 +29,32 @@ export async function POST(
     select: {
       balance: true,
       isFund: true,
-      fundInvestments: { select: { fundId: true, shares: true } },
+      fundInvestments: {
+        where: { shares: { gt: 0 } },
+        select: {
+          fundId: true,
+          shares: true,
+          fund: {
+            select: {
+              sharesOutstanding: true,
+              user: {
+                select: {
+                  balance: true,
+                  positions: {
+                    where: { shares: { gt: 0 } },
+                    select: {
+                      shares: true,
+                      avgBuyPrice: true,
+                      positionType: true,
+                      hashtag: { select: { currentPrice: true } },
+                    },
+                  },
+                },
+              },
+            },
+          },
+        },
+      },
       positions: {
         where: { shares: { gt: 0 } },
         select: {
@@ -49,10 +75,22 @@ export async function POST(
     const val =
       p.positionType === 'LONG'
         ? p.shares * p.hashtag.currentPrice
-        : p.avgBuyPrice * p.shares - (p.hashtag.currentPrice - p.avgBuyPrice) * p.shares
+        : (2 * p.avgBuyPrice - p.hashtag.currentPrice) * p.shares
     return sum + val
   }, 0)
-  const totalValue = user.balance + portfolioValue
+  const fundInvestmentValue = user.fundInvestments.reduce((sum, inv) => {
+    const fundPortfolioValue = inv.fund.user.positions.reduce((psum, p) => {
+      const val =
+        p.positionType === 'LONG'
+          ? p.shares * p.hashtag.currentPrice
+          : (2 * p.avgBuyPrice - p.hashtag.currentPrice) * p.shares
+      return psum + val
+    }, 0)
+    const fundTotalValue = inv.fund.user.balance + fundPortfolioValue
+    const nav = calcFundNav(fundTotalValue, inv.fund.sharesOutstanding)
+    return sum + inv.shares * nav
+  }, 0)
+  const totalValue = user.balance + portfolioValue + fundInvestmentValue
 
   // Forfeit all fund investments — decrement each fund's sharesOutstanding
   const fundUpdates = user.fundInvestments

src/app/api/user/me/reset/route.ts

@@ -2,6 +2,7 @@ import { NextRequest, NextResponse } from 'next/server'
 import { getServerSession } from 'next-auth'
 import { authOptions } from '@/lib/auth'
 import { prisma } from '@/lib/prisma'
+import { calcFundNav } from '@/lib/pricing'
 
 const STARTING_BALANCE = 2000
 
@@ -30,7 +31,32 @@ export async function POST(req: NextRequest) {
     select: {
       balance: true,
       isFund: true,
-      fundInvestments: { select: { fundId: true, shares: true } },
+      fundInvestments: {
+        where: { shares: { gt: 0 } },
+        select: {
+          fundId: true,
+          shares: true,
+          fund: {
+            select: {
+              sharesOutstanding: true,
+              user: {
+                select: {
+                  balance: true,
+                  positions: {
+                    where: { shares: { gt: 0 } },
+                    select: {
+                      shares: true,
+                      avgBuyPrice: true,
+                      positionType: true,
+                      hashtag: { select: { currentPrice: true } },
+                    },
+                  },
+                },
+              },
+            },
+          },
+        },
+      },
       positions: {
         where: { shares: { gt: 0 } },
         select: {
@@ -51,10 +77,22 @@ export async function POST(req: NextRequest) {
     const val =
       p.positionType === 'LONG'
         ? p.shares * p.hashtag.currentPrice
-        : p.avgBuyPrice * p.shares - (p.hashtag.currentPrice - p.avgBuyPrice) * p.shares
+        : (2 * p.avgBuyPrice - p.hashtag.currentPrice) * p.shares
     return sum + val
   }, 0)
-  const totalValue = user.balance + portfolioValue
+  const fundInvestmentValue = user.fundInvestments.reduce((sum, inv) => {
+    const fundPortfolioValue = inv.fund.user.positions.reduce((psum, p) => {
+      const val =
+        p.positionType === 'LONG'
+          ? p.shares * p.hashtag.currentPrice
+          : (2 * p.avgBuyPrice - p.hashtag.currentPrice) * p.shares
+      return psum + val
+    }, 0)
+    const fundTotalValue = inv.fund.user.balance + fundPortfolioValue
+    const nav = calcFundNav(fundTotalValue, inv.fund.sharesOutstanding)
+    return sum + inv.shares * nav
+  }, 0)
+  const totalValue = user.balance + portfolioValue + fundInvestmentValue
 
   // Forfeit all fund investments — decrement each fund's sharesOutstanding
   const fundUpdates = user.fundInvestments

src/app/fund/[slug]/InvestPanel.tsx

@@ -136,7 +136,7 @@ export default function InvestPanel({ fundSlug, nav, userBalance, userShares, us
             </div>
             {amountNum >= 1 && (
               <p className="text-xs text-slate-400">
-                You&apos;ll receive ≈ <span className="text-white font-medium">{previewShares.toFixed(4)} shares</span>
+                  You&apos;ll receive ≈ <span className="text-white font-medium">{previewShares.toFixed(6)} shares</span>
               </p>
             )}
             <button
@@ -154,7 +154,7 @@ export default function InvestPanel({ fundSlug, nav, userBalance, userShares, us
               <input
                 type="number"
                 min="0"
-                step="0.0001"
+                step="0.000001"
                 max={userShares}
                 value={shares}
                 onChange={(e) => setShares(e.target.value)}
@@ -167,7 +167,7 @@ export default function InvestPanel({ fundSlug, nav, userBalance, userShares, us
                   onClick={() => setShares(String(userShares))}
                   className="text-xs text-indigo-400 hover:text-indigo-300 mt-1"
                 >
-                  Max ({userShares.toFixed(4)})
+                  Max ({userShares.toFixed(6)})
                 </button>
               )}
             </div>