refactor: Remove series-related fields and components to streamline novel management

- Eliminated seriesId and related fields from various models and components to simplify the data structure.
- Updated UI components to reflect the removal of series dependencies, enhancing clarity and maintainability.
- Adjusted API calls and data handling to ensure compatibility with the new structure.

app/mod/import/import-batch-client.tsx

@@ -186,6 +186,7 @@ export function ImportBatchClient() {
     formParse.append("preview", "true")
     formParse.append("splitMode", splitMode)
     if (splitMode === "regex") formParse.append("chapterRegex", chapterStartPattern)
+    formParse.append("enforceMaxChapters", "true")
 
     const r3 = await fetch("/api/mod/epub", { method: "POST", credentials: "include", body: formParse, signal })
     const d3 = await r3.json().catch(() => ({}))
@@ -199,7 +200,7 @@ export function ImportBatchClient() {
     }
 
     const chapterCount = Number(d3?.novel?.totalChapters ?? d3?.chapterCount ?? 0)
-    if (d3?.importBlocked === true || chapterCount > BATCH_IMPORT_MAX_CHAPTERS) {
+    if (d3?.importBlocked === true) {
       return {
         fileName: displayPath,
         ok: false,
@@ -234,6 +235,7 @@ export function ImportBatchClient() {
     formImport.append("description", description)
     formImport.append("genreIds", genreIds.join(","))
     formImport.append("replaceExisting", String(replaceExisting))
+    formImport.append("enforceMaxChapters", "true")
 
     const r4 = await fetch("/api/mod/epub", { method: "POST", credentials: "include", body: formImport, signal })
     const d4 = await r4.json().catch(() => ({}))
@@ -367,8 +369,8 @@ export function ImportBatchClient() {
           Ghi đè nếu trùng tiêu đề (tắt = batch chỉ skip khi đã có truyện cùng tiêu đề)
         </label>
         <p className="text-xs text-muted-foreground">
-          An toàn batch: tối đa {BATCH_IMPORT_MAX_CHAPTERS.toLocaleString()} chương sau khi tách mỗi file; quá{" "}
+          An toàn batch (chỉ khi import nhiều): tối đa {BATCH_IMPORT_MAX_CHAPTERS.toLocaleString()} chương sau khi tách mỗi file; quá{" "}
-          {Math.round(BATCH_IMPORT_MAX_MS_PER_FILE / 60000)} phút/file thì bỏ qua và xử lý file tiếp theo.
+          {Math.round(BATCH_IMPORT_MAX_MS_PER_FILE / 60000)} phút/file thì bỏ qua và xử lý file tiếp theo. Import một EPUB trên trang khác không bị giới hạn này.
         </p>
       </section>
 

app/mod/page.tsx

@@ -11,7 +11,6 @@ export default async function ModDashboardPage() {
     let novelCount = 0
     let totalViews = 0
     let commentCount = 0
-    let seriesCount = 0
 
     try {
         const accessToken = (await cookies()).get(AUTH_COOKIE_NAME)?.value || ""
@@ -24,7 +23,6 @@ export default async function ModDashboardPage() {
             novelCount = Number(data?.novelCount || 0)
             totalViews = Number(data?.totalViews || 0)
             commentCount = Number(data?.commentCount || 0)
-            seriesCount = Number(data?.seriesCount || 0)
         }
     } catch (error) {
         console.error("Failed to fetch mod overview", error)
@@ -37,7 +35,7 @@ export default async function ModDashboardPage() {
                 Chào mừng bạn đến với trang quản trị dành cho Moderator.
             </p>
 
-            <div className="grid grid-cols-1 md:grid-cols-2 xl:grid-cols-4 gap-4">
+            <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
                 <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
                     <h3 className="font-semibold text-lg">Tổng truyện</h3>
                     <p className="text-3xl font-bold mt-2">{novelCount}</p>
@@ -50,10 +48,6 @@ export default async function ModDashboardPage() {
                     <h3 className="font-semibold text-lg">Bình luận mới</h3>
                     <p className="text-3xl font-bold mt-2">{commentCount}</p>
                 </div>
-                <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
-                    <h3 className="font-semibold text-lg">Tổng series</h3>
-                    <p className="text-3xl font-bold mt-2">{seriesCount}</p>
-                </div>
             </div>
         </div>
     )

app/mod/series/page.tsx

@@ -1,8 +0,0 @@
-import { requireModSessionUser } from "@/lib/server-auth"
-import { SeriesClient } from "./series-client"
-
-export default async function ModSeriesPage() {
-  await requireModSessionUser()
-
-  return <SeriesClient />
-}

app/mod/series/series-client.tsx

@@ -1,230 +0,0 @@
-"use client"
-
-import { useEffect, useMemo, useState } from "react"
-import { Layers, Loader2, Pencil, Plus, Save, Trash2, X } from "lucide-react"
-import { toast } from "sonner"
-import { Button } from "@/components/ui/button"
-import { Input } from "@/components/ui/input"
-import { Textarea } from "@/components/ui/textarea"
-
-interface SeriesItem {
-  id: string
-  name: string
-  slug: string
-  description?: string | null
-  _count?: {
-    novels: number
-  }
-}
-
-export function SeriesClient() {
-  const [series, setSeries] = useState<SeriesItem[]>([])
-  const [loading, setLoading] = useState(true)
-  const [submitting, setSubmitting] = useState(false)
-  const [name, setName] = useState("")
-  const [description, setDescription] = useState("")
-  const [editingId, setEditingId] = useState<string | null>(null)
-  const [keyword, setKeyword] = useState("")
-
-  const filteredSeries = useMemo(() => {
-    const q = keyword.trim().toLowerCase()
-    if (!q) return series
-    return series.filter((item) => {
-      return (
-        item.name.toLowerCase().includes(q) ||
-        item.slug.toLowerCase().includes(q) ||
-        (item.description || "").toLowerCase().includes(q)
-      )
-    })
-  }, [keyword, series])
-
-  const fetchSeries = async () => {
-    try {
-      const res = await fetch("/api/mod/series")
-      if (!res.ok) throw new Error("Không thể tải danh sách series")
-      const data = await res.json()
-      setSeries(data)
-    } catch (error: any) {
-      toast.error(error.message || "Không thể tải danh sách series")
-    } finally {
-      setLoading(false)
-    }
-  }
-
-  useEffect(() => {
-    fetchSeries()
-  }, [])
-
-  const resetForm = () => {
-    setEditingId(null)
-    setName("")
-    setDescription("")
-  }
-
-  const handleSubmit = async (e: React.FormEvent) => {
-    e.preventDefault()
-    if (!name.trim()) {
-      toast.error("Vui lòng nhập tên series")
-      return
-    }
-
-    setSubmitting(true)
-    try {
-      const payload = {
-        id: editingId,
-        name: name.trim(),
-        description: description.trim(),
-      }
-
-      const res = await fetch("/api/mod/series", {
-        method: editingId ? "PUT" : "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify(payload),
-      })
-
-      const data = await res.json()
-      if (!res.ok) {
-        throw new Error(data.error || "Không thể lưu series")
-      }
-
-      toast.success(editingId ? "Đã cập nhật series" : "Đã tạo series")
-      resetForm()
-      fetchSeries()
-    } catch (error: any) {
-      toast.error(error.message || "Không thể lưu series")
-    } finally {
-      setSubmitting(false)
-    }
-  }
-
-  const handleEdit = (item: SeriesItem) => {
-    setEditingId(item.id)
-    setName(item.name)
-    setDescription(item.description || "")
-  }
-
-  const handleDelete = async (id: string) => {
-    if (!confirm("Bạn chắc chắn muốn xóa series này?")) return
-
-    setSubmitting(true)
-    try {
-      const res = await fetch(`/api/mod/series?id=${id}`, { method: "DELETE" })
-      const data = await res.json()
-      if (!res.ok) {
-        throw new Error(data.error || "Không thể xóa series")
-      }
-
-      toast.success("Đã xóa series")
-      if (editingId === id) resetForm()
-      fetchSeries()
-    } catch (error: any) {
-      toast.error(error.message || "Không thể xóa series")
-    } finally {
-      setSubmitting(false)
-    }
-  }
-
-  return (
-    <div className="space-y-6">
-      <div className="bg-card rounded-xl border shadow-sm p-4 flex items-center justify-between">
-        <h1 className="text-2xl font-bold flex items-center gap-2">
-          <Layers className="h-6 w-6 text-primary" /> Quản lý series
-        </h1>
-        <Input
-          value={keyword}
-          onChange={(e) => setKeyword(e.target.value)}
-          placeholder="Tìm series..."
-          className="max-w-xs"
-        />
-      </div>
-
-      <div className="grid grid-cols-1 xl:grid-cols-3 gap-4">
-        <div className="xl:col-span-1 rounded-xl border bg-card p-4 shadow-sm">
-          <h2 className="text-base font-semibold mb-3">{editingId ? "Chỉnh sửa series" : "Tạo series mới"}</h2>
-          <form onSubmit={handleSubmit} className="space-y-3">
-            <div className="space-y-2">
-              <label className="text-sm font-medium">Tên series</label>
-              <Input value={name} onChange={(e) => setName(e.target.value)} placeholder="Ví dụ: Overlord" />
-            </div>
-            <div className="space-y-2">
-              <label className="text-sm font-medium">Mô tả</label>
-              <Textarea
-                value={description}
-                onChange={(e) => setDescription(e.target.value)}
-                placeholder="Mô tả ngắn về series"
-                rows={4}
-              />
-            </div>
-            <div className="flex gap-2">
-              <Button type="submit" disabled={submitting} className="gap-2">
-                {submitting && <Loader2 className="h-4 w-4 animate-spin" />}
-                {editingId ? <Save className="h-4 w-4" /> : <Plus className="h-4 w-4" />}
-                {editingId ? "Lưu" : "Tạo"}
-              </Button>
-              {editingId && (
-                <Button type="button" variant="outline" onClick={resetForm} className="gap-2">
-                  <X className="h-4 w-4" /> Hủy
-                </Button>
-              )}
-            </div>
-          </form>
-        </div>
-
-        <div className="xl:col-span-2 rounded-xl border bg-card shadow-sm overflow-hidden">
-          <div className="overflow-x-auto">
-            <table className="w-full text-sm text-left">
-              <thead className="text-xs uppercase bg-muted/50 text-muted-foreground border-b border-border">
-                <tr>
-                  <th className="px-4 py-3 font-semibold">Tên</th>
-                  <th className="px-4 py-3 font-semibold">Slug</th>
-                  <th className="px-4 py-3 font-semibold">Số truyện</th>
-                  <th className="px-4 py-3 font-semibold">Mô tả</th>
-                  <th className="px-4 py-3 text-right font-semibold">Thao tác</th>
-                </tr>
-              </thead>
-              <tbody>
-                {loading ? (
-                  <tr>
-                    <td colSpan={5} className="p-8 text-center text-muted-foreground">
-                      <Loader2 className="w-5 h-5 animate-spin mx-auto" />
-                    </td>
-                  </tr>
-                ) : filteredSeries.length === 0 ? (
-                  <tr>
-                    <td colSpan={5} className="p-8 text-center text-muted-foreground">
-                      Chưa có series nào
-                    </td>
-                  </tr>
-                ) : (
-                  filteredSeries.map((item) => (
-                    <tr key={item.id} className="border-b border-border last:border-0 hover:bg-muted/30">
-                      <td className="px-4 py-3 font-medium">{item.name}</td>
-                      <td className="px-4 py-3 text-muted-foreground">{item.slug}</td>
-                      <td className="px-4 py-3">{item._count?.novels ?? 0}</td>
-                      <td className="px-4 py-3 text-muted-foreground max-w-sm truncate">{item.description || "-"}</td>
-                      <td className="px-4 py-3">
-                        <div className="flex items-center justify-end gap-2">
-                          <Button size="icon" variant="outline" className="h-8 w-8" onClick={() => handleEdit(item)}>
-                            <Pencil className="h-4 w-4" />
-                          </Button>
-                          <Button
-                            size="icon"
-                            variant="outline"
-                            className="h-8 w-8 text-red-600 border-red-200 hover:bg-red-50"
-                            onClick={() => handleDelete(item.id)}
-                          >
-                            <Trash2 className="h-4 w-4" />
-                          </Button>
-                        </div>
-                      </td>
-                    </tr>
-                  ))
-                )}
-              </tbody>
-            </table>
-          </div>
-        </div>
-      </div>
-    </div>
-  )
-}

app/mod/thieu-thong-tin/missing-fields-client.tsx

@@ -24,11 +24,6 @@ type MissingNovel = {
     description: string
     totalChapters: number
     updatedAt: string
-    series: {
-        id: string
-        name: string
-        slug: string
-    } | null
     genres: Genre[]
     missing: Record<MissingKey, boolean>
 }
@@ -528,7 +523,7 @@ export function MissingFieldsClient() {
                         <Input
                             value={queryInput}
                             onChange={(e) => setQueryInput(e.target.value)}
-                            placeholder="Tìm theo tên truyện, slug, tác giả, series..."
+                            placeholder="Tìm theo tên truyện, slug, tác giả..."
                             onKeyDown={(e) => {
                                 if (e.key === "Enter") {
                                     setSearchKeyword(queryInput)
@@ -658,7 +653,7 @@ export function MissingFieldsClient() {
                                                 <Link href={`/truyen/${item.slug}`} className="font-semibold text-primary hover:underline" target="_blank">
                                                     {item.title}
                                                 </Link>
-                                                <p className="text-xs text-muted-foreground">{item.series?.name || "Độc lập"} - {item.totalChapters} chương</p>
+                                                <p className="text-xs text-muted-foreground">{item.totalChapters} chương</p>
                                                 <div className="flex flex-wrap gap-1">
                                                     {allMissingKeys.filter((key) => item.missing[key]).map((key) => (
                                                         <span key={key} className="rounded-full border border-amber-300 bg-amber-100 px-2 py-0.5 text-[11px] font-medium text-amber-700">

app/mod/truyen/novel-client.tsx

@@ -28,11 +28,6 @@ interface Novel {
     status: string
     totalChapters: number
     coverUrl?: string
-    series?: {
-        id: string
-        name: string
-        slug: string
-    } | null
 }
 
 interface Genre {
@@ -40,15 +35,6 @@ interface Genre {
     name: string
 }
 
-interface SeriesOption {
-    id: string
-    name: string
-    slug: string
-    _count?: {
-        novels: number
-    }
-}
-
 interface EpubPreviewData {
     fileName: string
     splitMode: "toc" | "regex"
@@ -139,9 +125,6 @@ export function NovelClient() {
     const [epubTitle, setEpubTitle] = useState("")
     const [epubAuthorName, setEpubAuthorName] = useState("")
     const [epubDescription, setEpubDescription] = useState("")
-    const [epubSeriesMode, setEpubSeriesMode] = useState<"none" | "existing" | "new">("none")
-    const [epubSeriesId, setEpubSeriesId] = useState("")
-    const [epubSeriesName, setEpubSeriesName] = useState("")
     const [epubSplitMode, setEpubSplitMode] = useState<"toc" | "regex">("toc")
     const [epubRegexPreset, setEpubRegexPreset] = useState<string>("vi_chuong_hoi")
     const [epubCustomRegex, setEpubCustomRegex] = useState("")
@@ -155,9 +138,6 @@ export function NovelClient() {
     const [originalAuthorName, setOriginalAuthorName] = useState("")
     const [description, setDescription] = useState("")
     const [coverUrl, setCoverUrl] = useState("")
-    const [seriesMode, setSeriesMode] = useState<"none" | "existing" | "new">("none")
-    const [selectedSeriesId, setSelectedSeriesId] = useState("")
-    const [newSeriesName, setNewSeriesName] = useState("")
     const [status, setStatus] = useState("Đang ra")
     
     // View state
@@ -171,7 +151,6 @@ export function NovelClient() {
 
     // Genre states
     const [genres, setGenres] = useState<Genre[]>([])
-    const [seriesList, setSeriesList] = useState<SeriesOption[]>([])
     const [selectedGenres, setSelectedGenres] = useState<string[]>([])
     const [genreQuery, setGenreQuery] = useState("")
     const [addingGenre, setAddingGenre] = useState(false)
@@ -340,14 +319,9 @@ export function NovelClient() {
         }
     }
 
-    const fetchSeries = async () => {
-        setSeriesList([])
-    }
-
     useEffect(() => {
         fetchNovels()
         fetchGenres()
-        fetchSeries()
     }, [])
 
     const normalizeGenreName = (value: string) => value.trim().toLowerCase()
@@ -359,9 +333,6 @@ export function NovelClient() {
         setOriginalAuthorName("")
         setDescription("")
         setCoverUrl("")
-        setSeriesMode("none")
-        setSelectedSeriesId("")
-        setNewSeriesName("")
         setStatus("Đang ra")
         setSelectedGenres([])
         setGenreQuery("")
@@ -377,9 +348,6 @@ export function NovelClient() {
         setOriginalAuthorName((prefill.originalAuthorName || nextAuthor).trim())
         setDescription((prefill.description || "").trim())
         setCoverUrl((prefill.coverUrl || "").trim())
-        setSeriesMode("none")
-        setSelectedSeriesId("")
-        setNewSeriesName("")
         setGenreQuery("")
 
         const validStatus = ["Đang ra", "Hoàn thành", "Tạm ngưng"].includes(prefill.status || "")
@@ -448,7 +416,7 @@ export function NovelClient() {
         if (!keyword) return novels
 
         return novels.filter((novel) => {
-            const searchable = [novel.title, novel.authorName, novel.series?.name || ""].join(" ").toLowerCase()
+            const searchable = [novel.title, novel.authorName].join(" ").toLowerCase()
             return searchable.includes(keyword)
         })
     }, [novels, searchKeyword])
@@ -546,7 +514,6 @@ export function NovelClient() {
             toast.success(`Đã xóa ${data.deletedCount || selectedNovelIds.length} truyện`)
             setSelectedNovelIds([])
             fetchNovels()
-            fetchSeries()
         } catch (error: any) {
             toast.error(error.message || "Lỗi khi xóa hàng loạt")
         } finally {
@@ -720,20 +687,6 @@ export function NovelClient() {
             return
         }
 
-        const resolvedNewSeriesName = seriesMode === "new"
-            ? (newSeriesName.trim() || title.trim())
-            : ""
-
-        if (seriesMode === "existing" && !selectedSeriesId) {
-            toast.error("Vui lòng chọn series đã có")
-            return
-        }
-
-        if (seriesMode === "new" && !resolvedNewSeriesName) {
-            toast.error("Vui lòng nhập tên series mới")
-            return
-        }
-
         setSubmitting(true)
         try {
             const res = await fetch("/api/mod/truyen", {
@@ -747,8 +700,6 @@ export function NovelClient() {
                     description,
                     coverUrl,
                     genreIds: selectedGenres,
-                    seriesId: seriesMode === "existing" ? selectedSeriesId : undefined,
-                    seriesName: seriesMode === "new" ? resolvedNewSeriesName : undefined,
                 }),
             })
             if (!res.ok) throw new Error("Thêm mới thất bại")
@@ -756,7 +707,6 @@ export function NovelClient() {
             setOpenAdd(false)
             resetAddForm()
             fetchNovels()
-            fetchSeries()
         } catch {
             toast.error("Lỗi khi thêm truyện mới")
         } finally {
@@ -775,9 +725,6 @@ export function NovelClient() {
         setEpubTitle("")
         setEpubAuthorName("")
         setEpubDescription("")
-        setEpubSeriesMode("none")
-        setEpubSeriesId("")
-        setEpubSeriesName("")
         setEpubSplitMode("toc")
         setEpubRegexPreset("vi_chuong_hoi")
         setEpubCustomRegex("")
@@ -811,9 +758,6 @@ export function NovelClient() {
         const formData = new FormData()
         formData.append("file", file)
         formData.append("preview", "true")
-        formData.append("seriesMode", epubSeriesMode)
-        if (epubSeriesMode === "existing") formData.append("seriesId", epubSeriesId)
-        if (epubSeriesMode === "new") formData.append("seriesName", epubSeriesName)
         formData.append("splitMode", splitMode)
 
         if (splitMode === "regex") {
@@ -930,25 +874,12 @@ export function NovelClient() {
             return
         }
 
-        if (epubSeriesMode === "existing" && !epubSeriesId) {
-            toast.error("Vui lòng chọn series đã có")
-            return
-        }
-
-        if (epubSeriesMode === "new" && !epubSeriesName.trim()) {
-            toast.error("Vui lòng nhập tên series mới")
-            return
-        }
-
         setUploadingEpub(true)
         const formData = new FormData()
         formData.append("file", pendingEpubFile)
         formData.append("title", epubTitle)
         formData.append("authorName", epubAuthorName)
         formData.append("description", epubDescription)
-        formData.append("seriesMode", epubSeriesMode)
-        if (epubSeriesMode === "existing") formData.append("seriesId", epubSeriesId)
-        if (epubSeriesMode === "new") formData.append("seriesName", epubSeriesName.trim())
         formData.append("splitMode", epubSplitMode)
 
         if (epubSplitMode === "regex") {
@@ -988,7 +919,6 @@ export function NovelClient() {
             }
             resetEpubPreviewState()
             fetchNovels()
-            fetchSeries()
         } catch (err: any) {
             toast.error(err.message || "Có lỗi xảy ra khi xuất bản truyện")
         } finally {
@@ -1002,16 +932,6 @@ export function NovelClient() {
             return
         }
 
-        if (epubSeriesMode === "existing" && !epubSeriesId) {
-            toast.error("Vui lòng chọn series đã có")
-            return
-        }
-
-        if (epubSeriesMode === "new" && !epubSeriesName.trim()) {
-            toast.error("Vui lòng nhập tên series mới")
-            return
-        }
-
         setUploadingEpub(true)
         initializeBulkProgress(pendingEpubFiles)
 
@@ -1026,9 +946,6 @@ export function NovelClient() {
                 try {
                     const formData = new FormData()
                     formData.append("file", file)
-                    formData.append("seriesMode", epubSeriesMode)
-                    if (epubSeriesMode === "existing") formData.append("seriesId", epubSeriesId)
-                    if (epubSeriesMode === "new") formData.append("seriesName", epubSeriesName.trim())
                     formData.append("splitMode", "toc")
 
                     setBulkProgressItem(fileKey, {
@@ -1119,7 +1036,6 @@ export function NovelClient() {
 
             resetEpubPreviewState()
             fetchNovels()
-            fetchSeries()
         } finally {
             setUploadingEpub(false)
         }
@@ -1161,15 +1077,6 @@ export function NovelClient() {
         setEditingNovel(novel)
         setTitle(novel.title)
         setAuthorName(novel.authorName)
-        if (novel.series?.id) {
-            setSeriesMode("existing")
-            setSelectedSeriesId(novel.series.id)
-            setNewSeriesName("")
-        } else {
-            setSeriesMode("none")
-            setSelectedSeriesId("")
-            setNewSeriesName("")
-        }
         setStatus(novel.status)
         setDescription("")
         setGenreQuery("")
@@ -1186,11 +1093,6 @@ export function NovelClient() {
                 setDescription(data.description || "")
                 setOriginalTitle(data.originalTitle || "")
                 setOriginalAuthorName(data.originalAuthorName || "")
-                if (data.series?.id) {
-                    setSeriesMode("existing")
-                    setSelectedSeriesId(data.series.id)
-                    setNewSeriesName("")
-                }
                 if (data.genres && Array.isArray(data.genres)) {
                     setSelectedGenres(data.genres.map((g: any) => g.id))
                 } else {
@@ -1213,16 +1115,6 @@ export function NovelClient() {
             return
         }
 
-        if (seriesMode === "existing" && !selectedSeriesId) {
-            toast.error("Vui lòng chọn series đã có")
-            return
-        }
-
-        if (seriesMode === "new" && !newSeriesName.trim()) {
-            toast.error("Vui lòng nhập tên series mới")
-            return
-        }
-
         setSubmitting(true)
         try {
             const res = await fetch("/api/mod/truyen", {
@@ -1247,7 +1139,6 @@ export function NovelClient() {
             toast.success("Cập nhật truyện thành công!")
             setOpenEdit(false)
             fetchNovels()
-            fetchSeries()
         } catch (error: any) {
             toast.error(error.message)
         } finally {
@@ -1501,53 +1392,6 @@ export function NovelClient() {
                                             <label className="text-xs font-medium text-muted-foreground">Mô tả</label>
                                             <Textarea value={epubDescription} onChange={(e) => setEpubDescription(e.target.value)} rows={3} />
                                         </div>
-                                        <div className="grid gap-2">
-                                            <label className="text-xs font-medium text-muted-foreground">Series (tùy chọn)</label>
-                                            <select
-                                                value={epubSeriesMode}
-                                                onChange={(e) => {
-                                                    const mode = e.target.value as "none" | "existing" | "new"
-                                                    setEpubSeriesMode(mode)
-                                                    if (mode !== "existing") setEpubSeriesId("")
-                                                    if (mode === "new" && !epubSeriesName.trim()) {
-                                                        setEpubSeriesName(epubTitle.trim())
-                                                    }
-                                                    if (mode !== "new") setEpubSeriesName("")
-                                                }}
-                                                className="flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm"
-                                            >
-                                                <option value="none">Không gán series</option>
-                                                <option value="existing">Thêm vào series có sẵn</option>
-                                                <option value="new">Tạo series mới</option>
-                                            </select>
-                                        </div>
-
-                                        {epubSeriesMode === "existing" && (
-                                            <div className="grid gap-2">
-                                                <label className="text-xs font-medium text-muted-foreground">Chọn series</label>
-                                                <select
-                                                    value={epubSeriesId}
-                                                    onChange={(e) => setEpubSeriesId(e.target.value)}
-                                                    className="flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm"
-                                                >
-                                                    <option value="">-- Chọn series --</option>
-                                                    {seriesList.map((series) => (
-                                                        <option key={series.id} value={series.id}>{series.name}</option>
-                                                    ))}
-                                                </select>
-                                            </div>
-                                        )}
-
-                                        {epubSeriesMode === "new" && (
-                                            <div className="grid gap-2">
-                                                <label className="text-xs font-medium text-muted-foreground">Tên series mới</label>
-                                                <Input
-                                                    value={epubSeriesName}
-                                                    onChange={(e) => setEpubSeriesName(e.target.value)}
-                                                    placeholder="Ví dụ: Harry Potter"
-                                                />
-                                            </div>
-                                        )}
                                     </div>
 
                                     <div>
@@ -1604,8 +1448,6 @@ export function NovelClient() {
                                         !epubPreviewData ||
                                         !epubTitle.trim() ||
                                         !epubAuthorName.trim() ||
-                                        (epubSeriesMode === "existing" && !epubSeriesId) ||
-                                        (epubSeriesMode === "new" && !epubSeriesName.trim()) ||
                                         (epubSplitMode === "regex" && epubRegexPreset === "custom" && !epubCustomRegex.trim())
                                     }
                                 >
@@ -1628,9 +1470,9 @@ export function NovelClient() {
                     >
                         <DialogContent className="w-[96vw] max-w-[96vw] sm:!max-w-[920px] max-h-[85vh] overflow-y-auto">
                             <DialogHeader>
-                                <DialogTitle>Import nhiều EPUB vào series</DialogTitle>
+                                <DialogTitle>Import nhiều EPUB</DialogTitle>
                                 <DialogDescription>
-                                    Đã chọn {pendingEpubFiles.length} file EPUB (từ file lẻ hoặc thư mục con). Mỗi file sẽ tạo thành một truyện và được gán vào cùng series.
+                                    Đã chọn {pendingEpubFiles.length} file EPUB (từ file lẻ hoặc thư mục con). Mỗi file sẽ tạo thành một truyện riêng.
                                 </DialogDescription>
                             </DialogHeader>
 
@@ -1716,55 +1558,6 @@ export function NovelClient() {
                                         </div>
                                     </div>
                                 </div>
-
-                                <div className="grid gap-2">
-                                    <label className="text-sm font-medium">Series</label>
-                                    <select
-                                        value={epubSeriesMode}
-                                        onChange={(e) => {
-                                            const mode = e.target.value as "none" | "existing" | "new"
-                                            setEpubSeriesMode(mode)
-                                            if (mode !== "existing") setEpubSeriesId("")
-                                            if (mode === "new" && !epubSeriesName.trim()) {
-                                                const fallbackTitle = pendingEpubFiles[0]?.name?.replace(/\.epub$/i, "") || ""
-                                                setEpubSeriesName(fallbackTitle)
-                                            }
-                                            if (mode !== "new") setEpubSeriesName("")
-                                        }}
-                                        className="flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm"
-                                    >
-                                        <option value="none">Không gán series</option>
-                                        <option value="existing">Thêm vào series có sẵn</option>
-                                        <option value="new">Tạo series mới</option>
-                                    </select>
-                                </div>
-
-                                {epubSeriesMode === "existing" && (
-                                    <div className="grid gap-2">
-                                        <label className="text-sm font-medium">Chọn series</label>
-                                        <select
-                                            value={epubSeriesId}
-                                            onChange={(e) => setEpubSeriesId(e.target.value)}
-                                            className="flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm"
-                                        >
-                                            <option value="">-- Chọn series --</option>
-                                            {seriesList.map((series) => (
-                                                <option key={series.id} value={series.id}>{series.name}</option>
-                                            ))}
-                                        </select>
-                                    </div>
-                                )}
-
-                                {epubSeriesMode === "new" && (
-                                    <div className="grid gap-2">
-                                        <label className="text-sm font-medium">Tên series mới</label>
-                                        <Input
-                                            value={epubSeriesName}
-                                            onChange={(e) => setEpubSeriesName(e.target.value)}
-                                            placeholder="Ví dụ: Chronicles of Narnia"
-                                        />
-                                    </div>
-                                )}
                             </div>
 
                             <DialogFooter className="sticky bottom-0 bg-background pt-2">
@@ -1773,9 +1566,7 @@ export function NovelClient() {
                                     onClick={handleBulkEpubUpload}
                                     disabled={
                                         uploadingEpub ||
-                                        pendingEpubFiles.length === 0 ||
+                                        pendingEpubFiles.length === 0
-                                        (epubSeriesMode === "existing" && !epubSeriesId) ||
-                                        (epubSeriesMode === "new" && !epubSeriesName.trim())
                                     }
                                 >
                                     {uploadingEpub && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
@@ -1808,14 +1599,7 @@ export function NovelClient() {
                                     <label className="text-sm font-medium">Tên truyện</label>
                                     <Input
                                         value={title}
-                                        onChange={(e) => {
+                                        onChange={(e) => setTitle(e.target.value)}
-                                            const nextTitle = e.target.value
-                                            const shouldSyncSeriesName = seriesMode === "new" && (!newSeriesName.trim() || newSeriesName === title)
-                                            setTitle(nextTitle)
-                                            if (shouldSyncSeriesName) {
-                                                setNewSeriesName(nextTitle)
-                                            }
-                                        }}
                                         placeholder="Ví dụ: Phàm Nhân Tu Tiên"
                                         autoFocus
                                     />
@@ -1832,51 +1616,6 @@ export function NovelClient() {
                                     <label className="text-sm font-medium">Tác giả gốc (Tùy chọn)</label>
                                     <Input value={originalAuthorName} onChange={(e) => setOriginalAuthorName(e.target.value)} placeholder="Ví dụ: 忘语" />
                                 </div>
-                                <div className="space-y-2">
-                                    <label className="text-sm font-medium">Series</label>
-                                    <select
-                                        value={seriesMode}
-                                        onChange={(e) => {
-                                            const mode = e.target.value as "none" | "existing" | "new"
-                                            setSeriesMode(mode)
-                                            if (mode !== "existing") setSelectedSeriesId("")
-                                            if (mode === "new" && !newSeriesName.trim()) {
-                                                setNewSeriesName(title.trim())
-                                            }
-                                            if (mode !== "new") setNewSeriesName("")
-                                        }}
-                                        className="flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm"
-                                    >
-                                        <option value="none">Không gán series</option>
-                                        <option value="existing">Chọn series có sẵn</option>
-                                        <option value="new">Tạo series mới</option>
-                                    </select>
-                                </div>
-                                {seriesMode === "existing" && (
-                                    <div className="space-y-2">
-                                        <label className="text-sm font-medium">Chọn series</label>
-                                        <select
-                                            value={selectedSeriesId}
-                                            onChange={(e) => setSelectedSeriesId(e.target.value)}
-                                            className="flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm"
-                                        >
-                                            <option value="">-- Chọn series --</option>
-                                            {seriesList.map((series) => (
-                                                <option key={series.id} value={series.id}>{series.name}</option>
-                                            ))}
-                                        </select>
-                                    </div>
-                                )}
-                                {seriesMode === "new" && (
-                                    <div className="space-y-2">
-                                        <label className="text-sm font-medium">Tên series mới</label>
-                                        <Input
-                                            value={newSeriesName}
-                                            onChange={(e) => setNewSeriesName(e.target.value)}
-                                            placeholder="Ví dụ: Chronicles of Narnia"
-                                        />
-                                    </div>
-                                )}
                                 <div className="space-y-2">
                                     <label className="text-sm font-medium">Ảnh bìa (Tùy chọn)</label>
                                     <div className="flex gap-2">
@@ -1937,17 +1676,6 @@ export function NovelClient() {
                                         <label className="text-sm font-medium">Tác giả gốc (Tùy chọn)</label>
                                         <Input value={originalAuthorName} onChange={(e) => setOriginalAuthorName(e.target.value)} />
                                     </div>
-                                    <div className="space-y-2">
-                                        <label className="text-sm font-medium">Series</label>
-                                        <Input
-                                            value={editingNovel?.series?.name || "Độc lập"}
-                                            disabled
-                                            className="bg-muted"
-                                        />
-                                        <p className="text-xs text-muted-foreground">
-                                            Không thể chỉnh sửa series tại màn hình sửa truyện.
-                                        </p>
-                                    </div>
                                     <div className="space-y-2">
                                         <label className="text-sm font-medium">Ảnh bìa (Tùy chọn)</label>
                                         <div className="flex gap-2">
@@ -2028,7 +1756,7 @@ export function NovelClient() {
                         <Input
                             value={searchKeyword}
                             onChange={(e) => setSearchKeyword(e.target.value)}
-                            placeholder="Tìm theo tên truyện, tác giả, series..."
+                            placeholder="Tìm theo tên truyện, tác giả..."
                             className="pl-8"
                         />
                     </div>
@@ -2114,7 +1842,6 @@ export function NovelClient() {
                                     </th>
                                     <th scope="col" className="px-5 py-4 font-semibold">Tên truyện</th>
                                     <th scope="col" className="px-5 py-4 font-semibold">Tác giả</th>
-                                    <th scope="col" className="px-5 py-4 font-semibold">Series</th>
                                     <th scope="col" className="px-5 py-4 font-semibold">Số chương</th>
                                     <th scope="col" className="px-5 py-4 font-semibold">Trạng thái</th>
                                     <th scope="col" className="px-5 py-4 text-right font-semibold">Thao tác</th>
@@ -2122,9 +1849,9 @@ export function NovelClient() {
                             </thead>
                             <tbody>
                                 {loading ? (
-                                    <tr><td colSpan={7} className="p-8 text-center text-muted-foreground"><Loader2 className="h-6 w-6 animate-spin mx-auto" /></td></tr>
+                                    <tr><td colSpan={6} className="p-8 text-center text-muted-foreground"><Loader2 className="h-6 w-6 animate-spin mx-auto" /></td></tr>
                                 ) : filteredNovels.length === 0 ? (
-                                    <tr><td colSpan={7} className="p-8 text-center text-muted-foreground">Không có truyện phù hợp với từ khóa tìm kiếm.</td></tr>
+                                    <tr><td colSpan={6} className="p-8 text-center text-muted-foreground">Không có truyện phù hợp với từ khóa tìm kiếm.</td></tr>
                                 ) : (
                                     pagedNovels.map((novel) => (
                                         <tr key={novel.id} className="border-b border-border hover:bg-muted/30 transition-colors last:border-0">
@@ -2145,11 +1872,6 @@ export function NovelClient() {
                                                 {novel.title}
                                             </td>
                                             <td className="px-5 py-4 text-muted-foreground">{novel.authorName}</td>
-                                            <td className="px-5 py-4">
-                                                <span className={`inline-flex items-center justify-center rounded-full px-2.5 py-0.5 text-xs font-semibold ${novel.series ? "bg-sky-100 text-sky-700 dark:bg-sky-900/40 dark:text-sky-300" : "bg-muted text-muted-foreground"}`}>
-                                                    {novel.series?.name || "Độc lập"}
-                                                </span>
-                                            </td>
                                             <td className="px-5 py-4">
                                                 <span className="inline-flex items-center justify-center rounded-full bg-primary/10 px-2.5 py-0.5 text-xs font-semibold text-primary">
                                                     {novel.totalChapters}
@@ -2224,11 +1946,6 @@ export function NovelClient() {
                                     <div className="p-3 flex flex-col flex-1">
                                         <h3 className="font-semibold text-sm line-clamp-2 leading-tight mb-1" title={novel.title}>{novel.title}</h3>
                                         <p className="text-xs text-muted-foreground mb-3">{novel.authorName}</p>
-                                        <p className="text-[11px] mb-3">
-                                            <span className={`inline-flex items-center rounded-full px-2 py-0.5 font-semibold ${novel.series ? "bg-sky-100 text-sky-700 dark:bg-sky-900/40 dark:text-sky-300" : "bg-muted text-muted-foreground"}`}>
-                                                {novel.series?.name || "Độc lập"}
-                                            </span>
-                                        </p>
                                         
                                         <div className="mt-auto grid grid-cols-3 gap-1.5">
                                             <Button size="sm" variant="outline" className="w-full h-7 text-xs px-0 text-emerald-600 hover:text-emerald-700 hover:bg-emerald-50" asChild>

app/page.tsx

@@ -20,7 +20,6 @@ type HomeNovel = {
   status: string
   description: string
   bookmarkCount: number
-  seriesId: string | null
   updatedAt: string | null
 }
 
@@ -51,7 +50,6 @@ type RecommendedByCountItem = {
 
 type RankingEntry = {
   id: string
-  seriesId: string | null
   novel: HomeNovel
   aggregatedViews: number
 }
@@ -188,9 +186,9 @@ export default async function HomePage() {
     randomNovels = [...popularItems].sort(() => Math.random() - 0.5).slice(0, 12)
     latestNovels = latestItems
     recentComments = []
-    weeklyRanking = popularItems.slice(0, 5).map((novel) => ({ id: novel.id, seriesId: novel.seriesId, novel, aggregatedViews: novel.views }))
+    weeklyRanking = popularItems.slice(0, 5).map((novel) => ({ id: novel.id, novel, aggregatedViews: novel.views }))
-    monthlyRanking = popularItems.slice(5, 10).map((novel) => ({ id: novel.id, seriesId: novel.seriesId, novel, aggregatedViews: novel.views }))
+    monthlyRanking = popularItems.slice(5, 10).map((novel) => ({ id: novel.id, novel, aggregatedViews: novel.views }))
-    allTimeRanking = popularItems.slice(10, 15).map((novel) => ({ id: novel.id, seriesId: novel.seriesId, novel, aggregatedViews: novel.views }))
+    allTimeRanking = popularItems.slice(10, 15).map((novel) => ({ id: novel.id, novel, aggregatedViews: novel.views }))
 
     for (const novel of latestNovels) {
       latestChapterMap.set(novel.id, {

app/the-loai/[slug]/page.tsx

@@ -26,7 +26,6 @@ type BrowseNovel = {
   views: number
   totalChapters: number
   status: string
-  seriesId?: string | null
 }
 
 type BrowseResponse = {
@@ -55,7 +54,7 @@ export default async function GenreDetailPage({
   }
 
   const browse = await readerApiFetch<BrowseResponse>(
-    `/api/novels/browse?genre=${encodeURIComponent(slug)}&sort=${sort}&page=${requestedPage}&limit=${PAGE_SIZE}&collapse_series=true`
+    `/api/novels/browse?genre=${encodeURIComponent(slug)}&sort=${sort}&page=${requestedPage}&limit=${PAGE_SIZE}`
   )
 
   const totalPages = Math.max(1, browse.totalPages || 1)

app/tim-kiem/page.tsx

@@ -18,7 +18,6 @@ type BrowseNovel = {
   views: number
   totalChapters: number
   status: string
-  seriesId?: string | null
 }
 
 type BrowseResponse = {
@@ -34,24 +33,6 @@ type GenreItem = {
   slug: string
 }
 
-function collapseSeriesRows<T extends { id: string; seriesId?: string | null }>(rows: T[]): T[] {
-  const pickedSeries = new Set<string>()
-  const output: T[] = []
-
-  for (const row of rows) {
-    if (!row.seriesId) {
-      output.push(row)
-      continue
-    }
-
-    if (pickedSeries.has(row.seriesId)) continue
-    pickedSeries.add(row.seriesId)
-    output.push(row)
-  }
-
-  return output
-}
-
 function buildBrowsePath(params: Record<string, string>) {
   const search = new URLSearchParams(params)
   return `/api/novels/browse?${search.toString()}`
@@ -100,7 +81,6 @@ export default async function SearchPage({
         status: statusFilter === "all" ? "" : statusFilter,
         page: String(requestedPage),
         limit: String(PAGE_SIZE),
-        collapse_series: "true",
       })
     )
 

app/truyen/[slug]/page.tsx

@@ -1,6 +1,5 @@
 import { notFound } from "next/navigation"
 import Link from "next/link"
-import { BookOpen, Eye, BookMarked, User, Clock, Layers } from "lucide-react"
 import { formatViews } from "@/lib/utils"
 import { GenreBadge } from "@/components/genre-badge"
 import { StarRating } from "@/components/star-rating"
@@ -18,15 +17,6 @@ type NovelGenre = {
   slug: string
 }
 
-type SeriesNovel = {
-  id: string
-  slug: string
-  title: string
-  status: string
-  totalChapters: number
-  coverUrl: string | null
-}
-
 type NovelDetail = {
   id: string
   title: string
@@ -41,14 +31,7 @@ type NovelDetail = {
   views: number
   ratingCount: number
   bookmarkCount: number
-  seriesId: string | null
   genres: NovelGenre[]
-  series: {
-    id: string
-    name: string
-    slug: string
-    novels: SeriesNovel[]
-  } | null
 }
 
 type ChaptersResponse = {
@@ -100,28 +83,15 @@ export default async function NovelDetailPage({
   let totalChapters = 0
   let totalPages = 1
   let firstChapterNumber: number | undefined
-  let seriesVolumes: Array<{
-    id: string
-    slug: string
-    title: string
-    status: string
-    totalChapters: number
-    coverUrl: string | null
-  }> = []
   const [firstChapterData, commentsData, chapterCommentsData, chaptersData] = await Promise.all([
     readerApiFetch<ChaptersResponse>(`/api/truyen/${encodeURIComponent(novel.id)}/chapters?page=1&limit=1`),
     readerApiFetch<CommentsResponse>(`/api/truyen/${encodeURIComponent(novel.id)}/comments?page=1&limit=50`),
     readerApiFetch<CommentsResponse>(`/api/truyen/${encodeURIComponent(novel.id)}/comments?scope=chapter&page=1&limit=50`),
-    novel.seriesId
+    readerApiFetch<ChaptersResponse>(`/api/truyen/${encodeURIComponent(novel.id)}/chapters?page=${currentPage}&limit=${limit}`),
-      ? Promise.resolve(null)
-      : readerApiFetch<ChaptersResponse>(`/api/truyen/${encodeURIComponent(novel.id)}/chapters?page=${currentPage}&limit=${limit}`),
   ])
 
   firstChapterNumber = firstChapterData.chapters[0]?.number
 
-  if (novel.seriesId) {
-    seriesVolumes = novel.series?.novels || []
-  } else if (chaptersData) {
   totalChapters = chaptersData.totalChapters
   totalPages = Math.max(1, chaptersData.totalPages || 1)
   formattedChapters = chaptersData.chapters.map((chapter) => ({
@@ -136,7 +106,6 @@ export default async function NovelDetailPage({
     views: chapter.views || 0,
     content: "",
   }))
-  }
 
   const comments = commentsData.comments.map((comment) => ({
     id: comment.id,
@@ -242,35 +211,6 @@ export default async function NovelDetailPage({
         <div className="text-sm leading-relaxed text-foreground/80 whitespace-pre-wrap">{novel.description || ""}</div>
       </section>
 
-      {/* Chapter list or series volumes */}
-      {novel.seriesId ? (
-        <section className="mt-8">
-          <h2 className="mb-3 text-lg font-bold text-foreground">Danh Sách Quyển</h2>
-          <div className="rounded-lg border border-border bg-card divide-y divide-border">
-            {seriesVolumes.map((volume, idx) => (
-              <Link
-                key={volume.id}
-                href={`/truyen/${volume.slug}`}
-                className={`flex items-center gap-4 px-4 py-3 hover:bg-muted/40 transition-colors ${volume.id === novel.id ? "bg-primary/5" : ""}`}
-              >
-                <span className="w-8 text-center text-sm font-semibold text-muted-foreground">{idx + 1}</span>
-                <img
-                  src={volume.coverUrl || "/default-cover.svg"}
-                  alt={volume.title}
-                  className="h-14 w-10 rounded bg-muted object-contain"
-                />
-                <div className="min-w-0 flex-1">
-                  <p className="font-medium text-foreground truncate">{volume.title}</p>
-                  <p className="text-xs text-muted-foreground">{volume.totalChapters} chương</p>
-                </div>
-                <span className={`inline-flex items-center rounded-full px-2 py-0.5 text-[10px] font-semibold ${getNovelStatusBadgeClass(volume.status)}`}>
-                  {volume.status}
-                </span>
-              </Link>
-            ))}
-          </div>
-        </section>
-      ) : (
       <section className="mt-8">
         <h2 className="mb-3 text-lg font-bold text-foreground">Danh Sách Chương</h2>
         <div className="rounded-lg border border-border bg-card">
@@ -283,7 +223,6 @@ export default async function NovelDetailPage({
           />
         </div>
       </section>
-      )}
 
       {/* Comments */}
       <section className="mt-8">

components/header.tsx

@@ -23,7 +23,6 @@ type SearchSuggestion = {
   slug: string
   authorName: string
   coverUrl?: string | null
-  series?: { id: string; name: string } | null
 }
 
 function roleLabel(role?: "USER" | "MOD" | "ADMIN") {
@@ -149,11 +148,6 @@ export function Header() {
                         <p className="truncate text-sm font-medium text-foreground">{item.title}</p>
                         <p className="truncate text-xs text-muted-foreground">{item.authorName}</p>
                       </div>
-                      {item.series?.name && (
-                        <span className="max-w-[120px] truncate text-[11px] font-medium text-primary">
-                          {item.series.name}
-                        </span>
-                      )}
                     </button>
                   ))
                 ) : (

lib/types.ts

@@ -11,11 +11,6 @@ export interface Novel {
   title: string
   slug: string
   authorName: string
-  series?: {
-    id: string
-    name: string
-    slug: string
-  } | null
   coverColor: string
   description: string
   genres: string[]

prisma/schema.prisma

@@ -82,8 +82,6 @@ model Novel {
   title         String
   originalTitle String?
   slug          String   @unique
-  seriesId      String?
-  series        Series?  @relation(fields: [seriesId], references: [id], onDelete: SetNull)
   authorName    String   // Tên tác giả nguyên bản của truyện
   originalAuthorName String?
   uploaderId    String?  // Tham chiếu đến User (Mod/Admin) đã upload
@@ -123,18 +121,6 @@ model NovelViewDaily {
   @@index([day])
 }
 
-model Series {
-  id          String   @id @default(cuid())
-  name        String
-  slug        String   @unique
-  description String?  @db.Text
-
-  novels      Novel[]
-
-  createdAt   DateTime @default(now())
-  updatedAt   DateTime @updatedAt
-}
-
 model Genre {
   id          String       @id @default(cuid())
   name        String       @unique