feat: add hashtag active duration and extend active window on sell

.env.example

@@ -17,6 +17,8 @@ MASTODON_ACCESS_TOKEN="your-mastodon-access-token"
 WORKER_RATE_LIMIT_MS=2000
 # How often (minutes) to queue a full price-update sweep (default: 60)
 PRICE_UPDATE_INTERVAL_MINUTES=60
+# How long (hours) a hashtag stays active after being researched or after its last position closes (default: 24)
+HASHTAG_ACTIVE_HOURS=24
 # Max pagination pages to fetch when counting posts (default: 5 = up to 200 posts)
 MAX_PAGES_PER_HASHTAG=5
 

prisma/schema.prisma

@@ -43,8 +43,10 @@ model Hashtag {
   currentPrice Float          @default(0.25)
   isActive     Boolean        @default(true)
   isBanned     Boolean        @default(false)
-  // Consecutive zero-result count; after 3 failed updates the hashtag auto-deactivates
+  // Consecutive zero-result count (informational)
   zeroCount    Int            @default(0)
+  // Earliest time this hashtag can be deactivated (set on research + when last position closes)
+  activeUntil  DateTime?
   lastUpdated  DateTime       @default(now())
   createdAt    DateTime       @default(now())
 

src/app/api/research/route.ts

@@ -72,6 +72,7 @@ export async function POST(req: NextRequest) {
   }
 
   const price = calcPrice(postsPerHour)
+  const activeUntil = new Date(Date.now() + parseInt(process.env.HASHTAG_ACTIVE_HOURS ?? '24', 10) * 60 * 60 * 1000)
 
   // Upsert the hashtag and deduct point atomically
   const [hashtag] = await prisma.$transaction([
@@ -82,6 +83,7 @@ export async function POST(req: NextRequest) {
         displayTag: raw.trim().replace(/^#+/, ''),
         currentPrice: price,
         isActive: true,
+        activeUntil,
         priceHistory: {
           create: { price, postsPerHour },
         },
@@ -90,6 +92,7 @@ export async function POST(req: NextRequest) {
         isActive: true,
         currentPrice: price,
         zeroCount: 0,
+        activeUntil,
         lastUpdated: new Date(),
         priceHistory: {
           create: { price, postsPerHour },

src/app/api/trade/route.ts

@@ -116,5 +116,20 @@ export async function POST(req: NextRequest) {
     })
   })
 
+  // When a sell closes the last position on this hashtag globally, extend the active window
+  if (type === 'SELL_LONG' || type === 'SELL_SHORT') {
+    const newShares = (existingPosition?.shares ?? 0) - shares
+    if (newShares <= 0) {
+      const remaining = await prisma.position.count({ where: { hashtagId, shares: { gt: 0 } } })
+      if (remaining === 0) {
+        const hours = parseInt(process.env.HASHTAG_ACTIVE_HOURS ?? '24', 10)
+        await prisma.hashtag.update({
+          where: { id: hashtagId },
+          data: { activeUntil: new Date(Date.now() + hours * 60 * 60 * 1000) },
+        })
+      }
+    }
+  }
+
   return NextResponse.json({ ok: true })
 }

src/app/stocks/page.tsx

@@ -0,0 +1,272 @@
+import { prisma } from '@/lib/prisma'
+import { formatCurrency } from '@/lib/utils'
+import Link from 'next/link'
+import { ArrowUp, ArrowDown, ArrowUpDown, BarChart2 } from 'lucide-react'
+import { formatDistanceToNow } from 'date-fns'
+
+export const dynamic = 'force-dynamic'
+
+const PAGE_SIZE = 25
+
+type SortField = 'price' | 'tag' | 'change' | 'updated'
+type SortDir = 'asc' | 'desc'
+
+interface PageProps {
+  searchParams: { page?: string; sort?: string; dir?: string }
+}
+
+function SortLink({
+  field,
+  label,
+  currentSort,
+  currentDir,
+  page,
+}: {
+  field: SortField
+  label: string
+  currentSort: SortField
+  currentDir: SortDir
+  page: number
+}) {
+  const isActive = currentSort === field
+  const nextDir: SortDir = isActive && currentDir === 'desc' ? 'asc' : 'desc'
+  const Icon = isActive ? (currentDir === 'desc' ? ArrowDown : ArrowUp) : ArrowUpDown
+  return (
+    <Link
+      href={`/stocks?page=1&sort=${field}&dir=${nextDir}`}
+      className={`flex items-center gap-1 hover:text-slate-200 transition-colors select-none ${isActive ? 'text-indigo-400' : 'text-slate-400'}`}
+    >
+      {label}
+      <Icon className="h-3 w-3" />
+    </Link>
+  )
+}
+
+export default async function StocksPage({ searchParams }: PageProps) {
+  const page = Math.max(1, parseInt(searchParams.page ?? '1', 10))
+  const sort = (['price', 'tag', 'change', 'updated'].includes(searchParams.sort ?? '')
+    ? searchParams.sort
+    : 'price') as SortField
+  const dir = (searchParams.dir === 'asc' ? 'asc' : 'desc') as SortDir
+
+  // For change sort: fetch all active hashtags with last 2 price points and sort in-memory
+  // For other sorts: use DB-native orderBy + pagination
+  let stocks: {
+    id: string
+    tag: string
+    displayTag: string
+    currentPrice: number
+    lastUpdated: Date
+    previousPrice: number | null
+    postsPerHour: number | null
+    holderCount: number
+  }[]
+  let total: number
+
+  if (sort === 'change') {
+    // Fetch all active hashtags for in-memory sort
+    const all = await prisma.hashtag.findMany({
+      where: { isActive: true },
+      select: {
+        id: true,
+        tag: true,
+        displayTag: true,
+        currentPrice: true,
+        lastUpdated: true,
+        priceHistory: {
+          orderBy: { recordedAt: 'desc' },
+          take: 2,
+          select: { price: true, postsPerHour: true },
+        },
+        _count: { select: { positions: true } },
+      },
+    })
+
+    const computed = all.map((h) => ({
+      id: h.id,
+      tag: h.tag,
+      displayTag: h.displayTag,
+      currentPrice: h.currentPrice,
+      lastUpdated: h.lastUpdated,
+      previousPrice: h.priceHistory[1]?.price ?? null,
+      postsPerHour: h.priceHistory[0]?.postsPerHour ?? null,
+      holderCount: h._count.positions,
+      changePct:
+        h.priceHistory[1]?.price != null
+          ? ((h.currentPrice - h.priceHistory[1].price) / h.priceHistory[1].price) * 100
+          : 0,
+    }))
+
+    computed.sort((a, b) =>
+      dir === 'desc' ? b.changePct - a.changePct : a.changePct - b.changePct,
+    )
+
+    total = computed.length
+    stocks = computed.slice((page - 1) * PAGE_SIZE, page * PAGE_SIZE)
+  } else {
+    const orderBy =
+      sort === 'price'
+        ? { currentPrice: dir }
+        : sort === 'tag'
+          ? { tag: dir }
+          : { lastUpdated: dir }
+
+    ;[total, stocks] = await Promise.all([
+      prisma.hashtag.count({ where: { isActive: true } }),
+      prisma.hashtag
+        .findMany({
+          where: { isActive: true },
+          orderBy,
+          take: PAGE_SIZE,
+          skip: (page - 1) * PAGE_SIZE,
+          select: {
+            id: true,
+            tag: true,
+            displayTag: true,
+            currentPrice: true,
+            lastUpdated: true,
+            priceHistory: {
+              orderBy: { recordedAt: 'desc' },
+              take: 2,
+              select: { price: true, postsPerHour: true },
+            },
+            _count: { select: { positions: true } },
+          },
+        })
+        .then((rows) =>
+          rows.map((h) => ({
+            id: h.id,
+            tag: h.tag,
+            displayTag: h.displayTag,
+            currentPrice: h.currentPrice,
+            lastUpdated: h.lastUpdated,
+            previousPrice: h.priceHistory[1]?.price ?? null,
+            postsPerHour: h.priceHistory[0]?.postsPerHour ?? null,
+            holderCount: h._count.positions,
+          })),
+        ),
+    ])
+  }
+
+  const totalPages = Math.max(1, Math.ceil(total / PAGE_SIZE))
+
+  return (
+    <div className="max-w-5xl mx-auto space-y-6">
+      {/* Header */}
+      <div className="flex items-center justify-between">
+        <div className="flex items-center gap-3">
+          <BarChart2 className="h-6 w-6 text-indigo-400" />
+          <h1 className="text-2xl font-bold">Markets</h1>
+          <span className="text-slate-500 text-sm">({total} active)</span>
+        </div>
+      </div>
+
+      {/* Table */}
+      <div className="bg-surface-card border border-surface-border rounded-xl overflow-hidden">
+        {/* Column headers */}
+        <div className="grid grid-cols-[2fr_1fr_1fr_1fr_1fr] gap-4 px-4 py-2.5 border-b border-surface-border text-xs font-medium">
+          <SortLink field="tag" label="Hashtag" currentSort={sort} currentDir={dir} page={page} />
+          <div className="text-right">
+            <SortLink field="price" label="Price" currentSort={sort} currentDir={dir} page={page} />
+          </div>
+          <div className="text-right">
+            <SortLink field="change" label="Change" currentSort={sort} currentDir={dir} page={page} />
+          </div>
+          <div className="text-right hidden sm:block text-slate-400">Posts/hr</div>
+          <div className="text-right">
+            <SortLink field="updated" label="Updated" currentSort={sort} currentDir={dir} page={page} />
+          </div>
+        </div>
+
+        {stocks.length === 0 ? (
+          <div className="text-center py-16 text-slate-500">No active hashtags yet.</div>
+        ) : (
+          <div className="divide-y divide-surface-border">
+            {stocks.map((stock, i) => {
+              const prev = stock.previousPrice
+              const change = prev != null ? stock.currentPrice - prev : null
+              const changePct = prev != null && prev > 0 ? ((stock.currentPrice - prev) / prev) * 100 : null
+              const up = change == null ? null : change >= 0
+
+              return (
+                <div
+                  key={stock.id}
+                  className="grid grid-cols-[2fr_1fr_1fr_1fr_1fr] gap-4 items-center px-4 py-3 hover:bg-surface-border/30 transition-colors"
+                >
+                  {/* Rank + hashtag name */}
+                  <div className="flex items-center gap-3 min-w-0">
+                    <span className="text-slate-600 text-xs w-6 shrink-0 text-right">
+                      {(page - 1) * PAGE_SIZE + i + 1}
+                    </span>
+                    <Link
+                      href={`/hashtag/${stock.tag}`}
+                      className="font-medium hover:text-indigo-300 transition-colors truncate"
+                    >
+                      #{stock.displayTag}
+                    </Link>
+                  </div>
+
+                  {/* Price */}
+                  <div className="text-right font-medium tabular-nums">
+                    {formatCurrency(stock.currentPrice)}
+                  </div>
+
+                  {/* Change */}
+                  <div className="text-right tabular-nums">
+                    {change == null ? (
+                      <span className="text-slate-600 text-xs">—</span>
+                    ) : (
+                      <div>
+                        <p className={`text-sm ${up ? 'text-emerald-400' : 'text-red-400'}`}>
+                          {up ? '+' : ''}{formatCurrency(change)}
+                        </p>
+                        <p className={`text-xs ${up ? 'text-emerald-400' : 'text-red-400'}`}>
+                          {up ? '+' : ''}{changePct!.toFixed(2)}%
+                        </p>
+                      </div>
+                    )}
+                  </div>
+
+                  {/* Posts/hr */}
+                  <div className="text-right hidden sm:block text-slate-400 text-sm tabular-nums">
+                    {stock.postsPerHour != null ? stock.postsPerHour.toFixed(1) : '—'}
+                  </div>
+
+                  {/* Last updated */}
+                  <div className="text-right text-xs text-slate-500">
+                    {formatDistanceToNow(stock.lastUpdated, { addSuffix: true })}
+                  </div>
+                </div>
+              )
+            })}
+          </div>
+        )}
+      </div>
+
+      {/* Pagination */}
+      {totalPages > 1 && (
+        <div className="flex items-center justify-center gap-2">
+          {page > 1 && (
+            <Link
+              href={`/stocks?page=${page - 1}&sort=${sort}&dir=${dir}`}
+              className="px-3 py-1.5 text-sm bg-surface-card border border-surface-border rounded-lg hover:border-indigo-500/50 transition-colors"
+            >
+              ← Prev
+            </Link>
+          )}
+          <span className="text-slate-500 text-sm">
+            Page {page} of {totalPages}
+          </span>
+          {page < totalPages && (
+            <Link
+              href={`/stocks?page=${page + 1}&sort=${sort}&dir=${dir}`}
+              className="px-3 py-1.5 text-sm bg-surface-card border border-surface-border rounded-lg hover:border-indigo-500/50 transition-colors"
+            >
+              Next →
+            </Link>
+          )}
+        </div>
+      )}
+    </div>
+  )
+}

src/components/Navbar.tsx

@@ -2,7 +2,7 @@
 
 import Link from 'next/link'
 import { useSession, signOut } from 'next-auth/react'
-import { TrendingUp, Search, User, LogOut, Shield, Trophy } from 'lucide-react'
+import { TrendingUp, Search, User, LogOut, Shield, Trophy, BarChart2 } from 'lucide-react'
 import { useState, useRef } from 'react'
 import { useRouter } from 'next/navigation'
 import { formatCurrency } from '@/lib/utils'
@@ -61,6 +61,14 @@ export function Navbar() {
             <span className="font-bold text-lg hidden sm:block">HashEx</span>
           </Link>
 
+          {/* Markets link */}
+          <Link
+            href="/stocks"
+            className="text-slate-400 hover:text-slate-200 transition-colors text-sm hidden sm:block shrink-0"
+          >
+            Markets
+          </Link>
+
           {/* Search */}
           <form onSubmit={handleSearch} className="flex-1 max-w-md">
             <div className="relative">

src/worker/index.ts

@@ -41,6 +41,11 @@ const prisma = new PrismaClient({
 
 const RATE_LIMIT_MS = parseInt(process.env.WORKER_RATE_LIMIT_MS ?? '2000', 10)
 const UPDATE_INTERVAL_MIN = parseInt(process.env.PRICE_UPDATE_INTERVAL_MINUTES ?? '60', 10)
+const ACTIVE_HOURS = parseInt(process.env.HASHTAG_ACTIVE_HOURS ?? '24', 10)
+
+function activeUntilFromNow(): Date {
+  return new Date(Date.now() + ACTIVE_HOURS * 60 * 60 * 1000)
+}
 
 // ── Queues (worker side) ──────────────────────────────────────────────────────
 
@@ -73,13 +78,13 @@ const priceWorker = new Worker(
     const hashtag = await prisma.hashtag.findUnique({ where: { id: hashtagId } })
     if (!hashtag) return
 
+    const now = new Date()
+    const ttlExpired = !hashtag.activeUntil || hashtag.activeUntil <= now
+    const ownerCount = await prisma.position.count({ where: { hashtagId, shares: { gt: 0 } } })
+
     if (postsPerHour === 0) {
       const newZeroCount = hashtag.zeroCount + 1
-      // Auto-deactivate after 3 consecutive zero-result updates with no owners
-      const ownerCount = await prisma.position.count({
-        where: { hashtagId, shares: { gt: 0 } },
-      })
-      const shouldDeactivate = newZeroCount >= 3 && ownerCount === 0
+      const shouldDeactivate = ttlExpired && ownerCount === 0
 
       await prisma.hashtag.update({
         where: { id: hashtagId },
@@ -89,7 +94,17 @@ const priceWorker = new Worker(
           lastUpdated: new Date(),
         },
       })
-      console.log(`[price] #${tag} got 0 posts (zeroCount=${newZeroCount})${shouldDeactivate ? ' — deactivated' : ''}`)
+      console.log(`[price] #${tag} got 0 posts (zeroCount=${newZeroCount})${shouldDeactivate ? ' — deactivated (TTL expired, no holders)' : ''}`)
+      return
+    }
+
+    // If TTL expired and no holders, deactivate instead of updating
+    if (ttlExpired && ownerCount === 0) {
+      await prisma.hashtag.update({
+        where: { id: hashtagId },
+        data: { isActive: false, lastUpdated: new Date() },
+      })
+      console.log(`[price] #${tag} deactivated — TTL expired, no holders`)
       return
     }