history for users too

prisma/schema.prisma

@@ -28,6 +28,7 @@ model User {
   managedFunds   FundManager[]
   fund           HedgeFund?
   fundInvestments FundInvestment[]
+  portfolioHistory UserPortfolioHistory[]
 }
 
 model HedgeFund {
@@ -143,6 +144,17 @@ model FundNavHistory {
   @@index([fundId, recordedAt])
 }
 
+model UserPortfolioHistory {
+  id             String   @id @default(cuid())
+  userId         String
+  user           User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  totalValue     Float
+  portfolioValue Float
+  recordedAt     DateTime @default(now())
+
+  @@index([userId, recordedAt])
+}
+
 model Position {
   id           String       @id @default(cuid())
   userId       String

src/app/hashtag/[tag]/page.tsx

@@ -209,7 +209,7 @@ async function RecentTradesSection({ hashtagId }: { hashtagId: string }) {
     where: { hashtagId },
     orderBy: { createdAt: 'desc' },
     take: 20,
-    include: { user: { select: { username: true } } },
+    include: { user: { select: { username: true, displayUsername: true, isFund: true } } },
   })
 
   if (trades.length === 0) return null
@@ -230,12 +230,15 @@ async function RecentTradesSection({ hashtagId }: { hashtagId: string }) {
               >
                 {t.type.replace('_', ' ')}
               </span>
-              <a
+              <div className="flex items-center gap-1">
-                href={`/profile/${t.user.username}`}
+                {t.user.isFund && <span className="text-indigo-400">🏦</span>}
+                <Link
+                  href={t.user.isFund ? `/fund/${t.user.username.replace('fund:', '')}` : `/profile/${t.user.username}`}
                   className="text-slate-400 hover:text-slate-200"
                 >
-                {t.user.username}
+                  {t.user.displayUsername ?? t.user.username}
-              </a>
+                </Link>
+              </div>
             </div>
             <div className="text-right">
               <span className="text-slate-300">{formatNumber(t.shares)} sh</span>

src/app/profile/[username]/page.tsx

@@ -9,6 +9,7 @@ import Link from 'next/link'
 import { TrendingUp, TrendingDown, Coins, Building2 } from 'lucide-react'
 import ChangePasswordForm from './ChangePasswordForm'
 import AccountSettingsForm from './AccountSettingsForm'
+import { PriceChart } from '@/components/PriceChart'
 
 export const dynamic = 'force-dynamic'
 
@@ -79,6 +80,15 @@ export default async function ProfilePage({ params }: Props) {
   })
   const lotteryWinnings = lotteryAggregate._sum.profit ?? 0
   const lotteryCount = lotteryAggregate._count
+
+  const portfolioHistory = await prisma.userPortfolioHistory.findMany({
+    where: {
+      userId: user.id,
+      recordedAt: { gte: new Date(Date.now() - 7 * 24 * 60 * 60 * 1000) },
+    },
+    orderBy: { recordedAt: 'asc' },
+    select: { totalValue: true, recordedAt: true },
+  })
   return (
     <div className="max-w-4xl mx-auto space-y-8">
       {/* Header */}
@@ -140,6 +150,17 @@ export default async function ProfilePage({ params }: Props) {
         />
       </div>
 
+      {/* Portfolio value chart */}
+      {portfolioHistory.length > 0 && (
+        <div className="bg-surface-card border border-surface-border rounded-xl p-4">
+          <h2 className="text-sm font-medium text-slate-400 mb-3">Portfolio Value — Last 7 Days</h2>
+          <PriceChart
+            data={portfolioHistory.map((p) => ({ price: p.totalValue, recordedAt: p.recordedAt.toISOString() }))}
+            height={200}
+          />
+        </div>
+      )}
+
       {/* Positions */}
       {user.positions.length > 0 && (
         <section>

src/worker/index.ts

@@ -281,6 +281,16 @@ const maintenanceWorker = new Worker(
       `[maintenance] pruned price history — active: ${deletedActive.count} rows removed (>${activeDays}d), ` +
       `inactive: ${deletedInactive.count} rows removed (>${inactiveHours}h)`,
     )
+
+    // ── Snapshot history pruning (7 days for both) ─────────────────────────
+    const snapshotCutoff = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000)
+    const [deletedFundNav, deletedUserPortfolio] = await Promise.all([
+      prisma.fundNavHistory.deleteMany({ where: { recordedAt: { lt: snapshotCutoff } } }),
+      prisma.userPortfolioHistory.deleteMany({ where: { recordedAt: { lt: snapshotCutoff } } }),
+    ])
+    console.log(
+      `[maintenance] pruned snapshots — fund NAV: ${deletedFundNav.count} rows, user portfolio: ${deletedUserPortfolio.count} rows (>7d)`,
+    )
   },
   { connection: redisOpts() },
 )
@@ -329,6 +339,39 @@ const fundNavSnapshotWorker = new Worker(
     }
 
     console.log(`[fund-nav] snapshotted ${funds.length} fund(s)`)
+
+    // ── User portfolio snapshots ──────────────────────────────────────────
+    const regularUsers = await prisma.user.findMany({
+      where: { isFund: false },
+      select: {
+        id: true,
+        balance: true,
+        positions: {
+          where: { shares: { gt: 0 } },
+          select: {
+            shares: true,
+            positionType: true,
+            avgBuyPrice: true,
+            hashtag: { select: { currentPrice: true } },
+          },
+        },
+      },
+    })
+
+    for (const user of regularUsers) {
+      const portfolioValue = user.positions.reduce((sum, p) => {
+        const val = p.positionType === 'LONG'
+          ? p.shares * p.hashtag.currentPrice
+          : p.avgBuyPrice * p.shares - (p.hashtag.currentPrice - p.avgBuyPrice) * p.shares
+        return sum + val
+      }, 0)
+      const totalValue = user.balance + portfolioValue
+      await prisma.userPortfolioHistory.create({
+        data: { userId: user.id, totalValue, portfolioValue },
+      })
+    }
+
+    console.log(`[fund-nav] snapshotted ${regularUsers.length} user portfolio(s)`)
   },
   { connection: redisOpts() },
 )