feat: metricas de popularidad - contador de lecturas con dedupe, hero carrusel (ultimo/mas leido/viral), widgets top + trending

src/app/(public)/p/[slug]/page.tsx

@@ -1,11 +1,12 @@
 import { notFound } from "next/navigation"
 import Link from "next/link"
 import type { Metadata } from "next"
-import { getPostBySlug, getAllPosts, getAuthorSlugByName } from "@/lib/db"
+import { getPostBySlug, getAllPosts, getAuthorSlugByName, getPostViews } from "@/lib/db"
 import { PostCard } from "@/components/post-card"
 import { TagBadge } from "@/components/tag-badge"
+import { ViewTracker } from "@/components/view-tracker"
 import { displayTitle } from "@/lib/title"
-import { ArrowLeft, BookOpen, ExternalLink } from "lucide-react"
+import { ArrowLeft, BookOpen, ExternalLink, Flame } from "lucide-react"
 
 export const dynamic = "force-dynamic"
 
@@ -85,8 +86,13 @@ export default async function PostDetailPage({
   // Título a mostrar (traducción al español si existe).
   const title = displayTitle(post)
 
+  // Vistas del post (para el contador).
+  const views = getPostViews(post.gid)
+
   return (
     <div className="pb-16 md:pb-0">
+      {/* Registra la vista al abrir el post (dedupe 1/día por visitante) */}
+      <ViewTracker gid={post.gid} />
       <Link
         href="/"
         className="mb-4 sm:mb-6 inline-flex items-center gap-1.5 text-xs text-[var(--muted)] hover:text-[var(--foreground)] transition-colors"
@@ -116,6 +122,12 @@ export default async function PostDetailPage({
                 {post.num_pages > 0 && (
                   <span className="text-xs text-[var(--muted)]">{post.num_pages} páginas</span>
                 )}
+                {views > 0 && (
+                  <span className="inline-flex items-center gap-1 text-xs text-[var(--muted)]">
+                    <Flame className="h-3 w-3 text-orange-500" />
+                    {views} {views === 1 ? "lectura" : "lecturas"}
+                  </span>
+                )}
               </div>
               <h1 className="text-lg sm:text-xl font-bold leading-tight">{title}</h1>
               {post.title_jpn && (

src/app/(public)/page.tsx

@@ -1,20 +1,27 @@
 import Link from "next/link"
-import { getPostsPage, getAllPosts } from "@/lib/db"
+import { getPostsPage, getAllPosts, getMostViewedPosts, getTrendingPosts } from "@/lib/db"
 import { InfinitePostGrid } from "@/components/infinite-grid"
 import { TagBadge } from "@/components/tag-badge"
 import { EmptyState } from "@/components/empty-state"
+import { HeroCarousel } from "@/components/hero-carousel"
 import { displayTitle } from "@/lib/title"
-import { BookOpen, Sparkles, ArrowRight } from "lucide-react"
+import { BookOpen, Flame, TrendingUp } from "lucide-react"
+import type { ViewedPost } from "@/lib/db"
 
 export const dynamic = "force-dynamic"
 
 export default async function PublicHomePage() {
   const { items, total } = getPostsPage(1, 12, true)
-  const latest = getAllPosts(true)[0] // publicación destacada del hero
+  const allPosts = getAllPosts(true)
+  const latest = allPosts[0] as ViewedPost | undefined // publicación destacada del hero
+
+  // Métricas de popularidad: leídos (total) + virales (últimos 7 días)
+  const mostViewed = getMostViewedPosts(8).filter((p) => p.views > 0)
+  const trending = getTrendingPosts(7, 8).filter((p) => p.views > 0)
 
   // Tags más frecuentes para los chips de exploración rápida.
   const tagCounts = new Map<string, number>()
-  for (const p of getAllPosts(true)) {
+  for (const p of allPosts) {
     for (const t of p.tags || []) {
       const clean = t.toLowerCase().replace(/^artist:|^parody:/, "").trim()
       if (!clean || clean.includes(" ")) continue
@@ -36,51 +43,9 @@ export default async function PublicHomePage() {
 
   return (
     <div className="space-y-8 sm:space-y-10">
-      {/* ===== HERO: publicación destacada (hook visual inmediato) ===== */}
+      {/* ===== HERO CARRUSEL: último lanzamiento → más leído → más viral ===== */}
       {latest && (
-        <section className="rounded-3xl overflow-hidden border border-[var(--border)] bg-gradient-to-br from-[var(--surface)] via-[var(--surface)] to-[#1a1a20]">
-          <Link href={`/p/${latest.slug}`} className="group grid gap-0 md:grid-cols-2">
-            <div className="relative aspect-[4/3] md:aspect-auto md:h-full overflow-hidden">
-              <img
-                src={`/api/cover/${latest.gid}`}
-                alt={latest.title}
-                className="h-full w-full object-cover transition-transform duration-700 group-hover:scale-[1.05]"
-              />
-              <div className="absolute top-3 left-3 inline-flex items-center gap-1.5 rounded-full bg-black/80 backdrop-blur-sm px-3 py-1 text-[10px] font-semibold uppercase tracking-wider text-[var(--accent)] border border-[var(--accent)]/40">
-                <Sparkles className="h-3 w-3" />
-                Último lanzamiento
-              </div>
-            </div>
-            <div className="flex flex-col justify-center gap-4 p-5 sm:p-8">
-              <div className="flex items-center gap-2">
-                <span className="rounded-full bg-[var(--accent)]/10 px-2 py-0.5 text-[10px] font-semibold text-[var(--accent)] border border-[var(--accent)]/30">
-                  Destacado
-                </span>
-                {latest.num_pages > 0 && (
-                  <span className="text-xs text-[var(--muted)]">{latest.num_pages} páginas</span>
-                )}
-              </div>
-              <h1 className="text-2xl sm:text-4xl font-bold tracking-tight leading-tight line-clamp-3">
-                {displayTitle(latest)}
-              </h1>
-              {latest.artist && (
-                <p className="text-sm text-[var(--muted)]">por {latest.artist}</p>
-              )}
-              {latest.summary && latest.summary.length > 40 && (
-                <p className="hidden sm:block text-sm text-[var(--muted)] leading-relaxed line-clamp-3">
-                  {latest.summary}
-                </p>
-              )}
-              <div className="flex flex-wrap items-center gap-3 pt-2">
-                <span className="inline-flex items-center gap-2 rounded-full bg-[var(--accent)] px-6 py-2.5 text-sm font-semibold text-white transition-all group-hover:bg-[var(--accent-hover)] group-hover:scale-[1.02]">
-                  <BookOpen className="h-4 w-4" />
-                  Leer
-                  <ArrowRight className="h-4 w-4 transition-transform group-hover:translate-x-0.5" />
-                </span>
-              </div>
-            </div>
-          </Link>
-        </section>
+        <HeroCarousel latest={latest} mostViewed={mostViewed} trending={trending} />
       )}
 
       {/* ===== Chips de tags populares (navegación por interés) ===== */}
@@ -97,7 +62,86 @@ export default async function PublicHomePage() {
         </section>
       )}
 
-      {/* ===== Feed central: masonry + scroll infinito ===== */}
+      {/* ===== Widgets de popularidad ===== */}
+      {(mostViewed.length > 0 || trending.length > 0) && (
+        <section className="grid gap-6 md:grid-cols-2">
+          {mostViewed.length > 0 && (
+            <div>
+              <h2 className="mb-3 flex items-center gap-2 text-sm font-semibold text-[var(--muted)] uppercase tracking-wider">
+                <Flame className="h-4 w-4 text-orange-500" />
+                Lo más leído
+              </h2>
+              <ul className="space-y-1.5">
+                {mostViewed.slice(0, 5).map((p, i) => (
+                  <li key={p.id}>
+                    <Link
+                      href={`/p/${p.slug}`}
+                      className="group flex items-center gap-3 rounded-xl border border-[var(--border)] bg-[var(--surface)] p-2.5 transition-colors hover:border-[var(--border-hover)]"
+                    >
+                      <span className="w-5 flex-shrink-0 text-center text-sm font-bold text-[var(--muted)]">
+                        {i + 1}
+                      </span>
+                      <img
+                        src={`/api/cover/${p.gid}`}
+                        alt=""
+                        className="h-12 w-9 flex-shrink-0 rounded-md object-cover"
+                        loading="lazy"
+                      />
+                      <div className="min-w-0 flex-1">
+                        <p className="line-clamp-1 text-xs font-medium group-hover:text-[var(--accent)] transition-colors">
+                          {displayTitle(p)}
+                        </p>
+                        <p className="text-[10px] text-[var(--muted)]">
+                          {p.views} {p.views === 1 ? "lectura" : "lecturas"}
+                        </p>
+                      </div>
+                    </Link>
+                  </li>
+                ))}
+              </ul>
+            </div>
+          )}
+
+          {trending.length > 0 && (
+            <div>
+              <h2 className="mb-3 flex items-center gap-2 text-sm font-semibold text-[var(--muted)] uppercase tracking-wider">
+                <TrendingUp className="h-4 w-4 text-emerald-500" />
+                Lo más viral esta semana
+              </h2>
+              <ul className="space-y-1.5">
+                {trending.slice(0, 5).map((p, i) => (
+                  <li key={p.id}>
+                    <Link
+                      href={`/p/${p.slug}`}
+                      className="group flex items-center gap-3 rounded-xl border border-[var(--border)] bg-[var(--surface)] p-2.5 transition-colors hover:border-[var(--border-hover)]"
+                    >
+                      <span className="w-5 flex-shrink-0 text-center text-sm font-bold text-[var(--muted)]">
+                        {i + 1}
+                      </span>
+                      <img
+                        src={`/api/cover/${p.gid}`}
+                        alt=""
+                        className="h-12 w-9 flex-shrink-0 rounded-md object-cover"
+                        loading="lazy"
+                      />
+                      <div className="min-w-0 flex-1">
+                        <p className="line-clamp-1 text-xs font-medium group-hover:text-[var(--accent)] transition-colors">
+                          {displayTitle(p)}
+                        </p>
+                        <p className="text-[10px] text-[var(--muted)]">
+                          {p.views} {p.views === 1 ? "lectura" : "lecturas"} esta semana
+                        </p>
+                      </div>
+                    </Link>
+                  </li>
+                ))}
+              </ul>
+            </div>
+          )}
+        </section>
+      )}
+
+      {/* ===== Feed central: grid + scroll infinito ===== */}
       <section>
         <div className="mb-4 flex items-end justify-between">
           <div>

src/app/api/stats/view/route.ts

@@ -0,0 +1,28 @@
+import { NextRequest } from "next/server"
+import { recordView } from "@/lib/db"
+
+// POST /api/stats/view — registra una vista de un post.
+// Dedupe por cookie: cada visitante cuenta 1 vista por gid por día
+// (cookie ws_v_<gid> con expiración 24h). Evita que bots/refrescos inflen.
+export async function POST(req: NextRequest) {
+  const body = await req.json().catch(() => ({}))
+  const gid = String(body.gid || "").trim()
+  if (!gid || !/^\d+$/.test(gid)) {
+    return Response.json({ error: "gid inválido" }, { status: 400 })
+  }
+
+  const cookieName = `ws_v_${gid}`
+  const already = req.cookies.get(cookieName)?.value
+  if (already === "1") {
+    return Response.json({ counted: false })
+  }
+
+  recordView(gid)
+
+  const res = Response.json({ counted: true })
+  res.headers.append(
+    "Set-Cookie",
+    `${cookieName}=1; Path=/; Max-Age=${24 * 60 * 60}; SameSite=Lax`,
+  )
+  return res
+}

src/components/hero-carousel.tsx

@@ -0,0 +1,160 @@
+"use client"
+
+import { useEffect, useRef, useState, useCallback } from "react"
+import Link from "next/link"
+import type { ViewedPost } from "@/lib/db"
+import { displayTitle } from "@/lib/title"
+import { ArrowRight, BookOpen, Sparkles, Flame, TrendingUp } from "lucide-react"
+
+interface Slide {
+  key: string
+  label: string
+  icon: "sparkles" | "flame" | "trending"
+  post: ViewedPost
+}
+
+// Hero carrusel: desliza entre Último lanzamiento → Lo más leído → Lo más viral.
+// Autoplay cada 6s + swipe táctil + flechas. Transición suave (translateX).
+export function HeroCarousel({
+  latest,
+  mostViewed,
+  trending,
+}: {
+  latest: ViewedPost
+  mostViewed: ViewedPost[]
+  trending: ViewedPost[]
+}) {
+  const [index, setIndex] = useState(0)
+  const [paused, setPaused] = useState(false)
+  const touchX = useRef<number | null>(null)
+
+  const slides: Slide[] = [
+    { key: "latest", label: "Último lanzamiento", icon: "sparkles", post: latest },
+  ]
+  if (mostViewed.length > 0) {
+    slides.push({ key: "most-viewed", label: "Lo más leído", icon: "flame", post: mostViewed[0] })
+  }
+  if (trending.length > 0 && trending[0].gid !== mostViewed[0]?.gid) {
+    slides.push({ key: "trending", label: "Lo más viral", icon: "trending", post: trending[0] })
+  }
+
+  const go = useCallback(
+    (dir: 1 | -1) => setIndex((i) => (i + dir + slides.length) % slides.length),
+    [slides.length],
+  )
+
+  // Autoplay (pausa al hover/touch)
+  useEffect(() => {
+    if (paused || slides.length <= 1) return
+    const t = setInterval(() => go(1), 6000)
+    return () => clearInterval(t)
+  }, [paused, go, slides.length])
+
+  if (slides.length === 0) return null
+  const active = slides[index]
+
+  return (
+    <section
+      className="relative overflow-hidden rounded-3xl border border-[var(--border)] bg-gradient-to-br from-[var(--surface)] via-[var(--surface)] to-[#1a1a20]"
+      onMouseEnter={() => setPaused(true)}
+      onMouseLeave={() => setPaused(false)}
+      onTouchStart={(e) => (touchX.current = e.touches[0].clientX)}
+      onTouchEnd={(e) => {
+        if (touchX.current === null) return
+        const delta = e.changedTouches[0].clientX - touchX.current
+        if (Math.abs(delta) > 40) go(delta < 0 ? 1 : -1) // swipe izq = next, der = prev
+        touchX.current = null
+      }}
+    >
+      {/* Slides en fila, translateX suave */}
+      <div
+        className="flex transition-transform duration-700 ease-in-out"
+        style={{ transform: `translateX(-${index * 100}%)` }}
+      >
+        {slides.map((s) => (
+          <Link
+            key={s.key}
+            href={`/p/${s.post.slug}`}
+            className="group grid w-full flex-shrink-0 gap-0 md:grid-cols-2"
+          >
+            <div className="relative aspect-[4/3] md:aspect-auto md:h-full overflow-hidden">
+              <img
+                src={`/api/cover/${s.post.gid}`}
+                alt={displayTitle(s.post)}
+                className="h-full w-full object-cover transition-transform duration-700 group-hover:scale-[1.05]"
+              />
+              <div className="absolute top-3 left-3 inline-flex items-center gap-1.5 rounded-full bg-black/80 backdrop-blur-sm px-3 py-1 text-[10px] font-semibold uppercase tracking-wider text-white border border-white/20">
+                {s.icon === "flame" && <Flame className="h-3 w-3 text-[#f97316]" />}
+                {s.icon === "trending" && <TrendingUp className="h-3 w-3 text-emerald-400" />}
+                {s.icon === "sparkles" && <Sparkles className="h-3 w-3 text-[var(--accent)]" />}
+                {s.label}
+              </div>
+            </div>
+            <div className="flex flex-col justify-center gap-4 p-5 sm:p-8">
+              <div className="flex items-center gap-2">
+                {s.post.views > 0 && (
+                  <span className="inline-flex items-center gap-1 rounded-full bg-[var(--accent)]/10 px-2 py-0.5 text-[10px] font-semibold text-[var(--accent)] border border-[var(--accent)]/30">
+                    <Flame className="h-3 w-3" />
+                    {s.post.views} {s.post.views === 1 ? "lectura" : "lecturas"}
+                  </span>
+                )}
+                {s.post.num_pages > 0 && (
+                  <span className="text-xs text-[var(--muted)]">{s.post.num_pages} páginas</span>
+                )}
+              </div>
+              <h1 className="text-2xl sm:text-4xl font-bold tracking-tight leading-tight line-clamp-3">
+                {displayTitle(s.post)}
+              </h1>
+              {s.post.artist && (
+                <p className="text-sm text-[var(--muted)]">por {s.post.artist}</p>
+              )}
+              <div className="flex flex-wrap items-center gap-3 pt-2">
+                <span className="inline-flex items-center gap-2 rounded-full bg-[var(--accent)] px-6 py-2.5 text-sm font-semibold text-white transition-all group-hover:bg-[var(--accent-hover)] group-hover:scale-[1.02]">
+                  <BookOpen className="h-4 w-4" />
+                  Leer
+                  <ArrowRight className="h-4 w-4 transition-transform group-hover:translate-x-0.5" />
+                </span>
+              </div>
+            </div>
+          </Link>
+        ))}
+      </div>
+
+      {/* Flechas (desktop) */}
+      {slides.length > 1 && (
+        <>
+          <button
+            onClick={() => go(-1)}
+            aria-label="Anterior"
+            className="absolute left-3 top-1/2 hidden -translate-y-1/2 rounded-full bg-black/60 p-2 text-white backdrop-blur-sm transition-all hover:bg-black/80 md:block"
+          >
+            <svg className="h-4 w-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="m15 18-6-6 6-6" /></svg>
+          </button>
+          <button
+            onClick={() => go(1)}
+            aria-label="Siguiente"
+            className="absolute right-3 top-1/2 hidden -translate-y-1/2 rounded-full bg-black/60 p-2 text-white backdrop-blur-sm transition-all hover:bg-black/80 md:block"
+          >
+            <svg className="h-4 w-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"><path d="m9 18 6-6-6-6" /></svg>
+          </button>
+        </>
+      )}
+
+      {/* Indicadores */}
+      {slides.length > 1 && (
+        <div className="absolute bottom-3 left-1/2 flex -translate-x-1/2 items-center gap-1.5">
+          {slides.map((s, i) => (
+            <button
+              key={s.key}
+              onClick={() => setIndex(i)}
+              aria-label={s.label}
+              className={`h-1.5 rounded-full transition-all ${
+                i === index ? "w-6 bg-[var(--accent)]" : "w-1.5 bg-white/40 hover:bg-white/70"
+              }`}
+            />
+          ))}
+        </div>
+      )}
+    </section>
+  )
+}

src/components/view-tracker.tsx

@@ -0,0 +1,20 @@
+"use client"
+
+import { useEffect } from "react"
+
+// Registra una vista de un post al abrirlo (dedupe por cookie en el servidor:
+// 1 vista por visitante por gid por día). No bloquea ni afecta la UI.
+export function ViewTracker({ gid }: { gid: string }) {
+  useEffect(() => {
+    if (!gid) return
+    // Fire-and-forget: no esperamos respuesta, no importa si falla.
+    fetch("/api/stats/view", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ gid }),
+      credentials: "same-origin",
+    }).catch(() => {})
+  }, [gid])
+
+  return null
+}

src/lib/db.ts

@@ -117,6 +117,19 @@ function migrate(db: Database.Database) {
   try {
     db.exec("ALTER TABLE posts ADD COLUMN title_es TEXT")
   } catch {}
+
+  // ===== Métricas de popularidad =====
+  // post_views: cada lectura de un post (1 por visitante por día, dedup por cookie).
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS post_views (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      gid TEXT NOT NULL,
+      viewed_at TEXT DEFAULT (datetime('now'))
+    );
+
+    CREATE INDEX IF NOT EXISTS idx_views_gid ON post_views(gid);
+    CREATE INDEX IF NOT EXISTS idx_views_date ON post_views(viewed_at);
+  `)
 }
 
 export interface Post {
@@ -534,3 +547,53 @@ export function getTagsWithCounts(limit = 25): { tag: string; count: number }[]
     return []
   }
 }
+
+// ===== Métricas de popularidad =====
+
+export interface ViewedPost extends Post {
+  views: number
+}
+
+// Registra una vista de un post (1 por visitante por día — el dedupe lo hace
+// el endpoint vía cookie; acá solo insertamos el evento).
+export function recordView(gid: string): void {
+  const d = getDb()
+  d.prepare("INSERT INTO post_views (gid) VALUES (?)").run(gid)
+}
+
+// Posts más LEÍDOS (total acumulado de vistas).
+export function getMostViewedPosts(limit = 10): ViewedPost[] {
+  const d = getDb()
+  const rows = d
+    .prepare(
+      `SELECT p.*, (SELECT COUNT(*) FROM post_views v WHERE v.gid = p.gid) as views
+       FROM posts p
+       WHERE p.published = 1
+       ORDER BY views DESC
+       LIMIT @limit`,
+    )
+    .all({ limit }) as Record<string, unknown>[]
+  return rows.map((r) => ({ ...rowToPost(r), views: (r.views as number) || 0 }))
+}
+
+// Posts más VIRALES (vistas en los últimos N días) — lo que está explotando ahora.
+export function getTrendingPosts(days = 7, limit = 10): ViewedPost[] {
+  const d = getDb()
+  const rows = d
+    .prepare(
+      `SELECT p.*, (SELECT COUNT(*) FROM post_views v WHERE v.gid = p.gid AND v.viewed_at >= datetime('now', @daysExpr)) as views
+       FROM posts p
+       WHERE p.published = 1
+       ORDER BY views DESC
+       LIMIT @limit`,
+    )
+    .all({ daysExpr: `-${days} days`, limit }) as Record<string, unknown>[]
+  return rows.map((r) => ({ ...rowToPost(r), views: (r.views as number) || 0 }))
+}
+
+// Cantidad de vistas de un gid (para el badge de la card).
+export function getPostViews(gid: string): number {
+  const d = getDb()
+  const row = d.prepare("SELECT COUNT(*) as c FROM post_views WHERE gid = ?").get(gid) as { c: number }
+  return row.c
+}

src/middleware.ts

@@ -53,6 +53,9 @@ function isPublicPath(pathname: string, method: string): boolean {
   // Solo GET; el token valida la autorización dentro del handler.
   if (pathname.startsWith("/api/review/") && method === "GET") return true
 
+  // /api/stats/view: registro de vistas (POST, gid validado en el handler).
+  if (pathname === "/api/stats/view" && method === "POST") return true
+
   return false
 }