refactor: Streamline EPUB handling with new split modes and improved error management

- Removed legacy AI Tool references and unnecessary fields from the README and various components.
- Introduced new EPUB split modes (toc, regex, tag) to enhance flexibility in chapter extraction.
- Updated import and chapter management components to utilize the new EPUB split functionality.
- Improved error handling in the login API route for better user feedback.
- Cleaned up unused files and optimized the overall code structure for maintainability.

README.md

@@ -44,11 +44,6 @@ READER_API_ORIGIN="http://localhost:8000"
 GOOGLE_CLIENT_ID="your_google_client_id"
 GOOGLE_CLIENT_SECRET="your_google_client_secret"
 
-# AI Tool cho MOD (LLM + web search)
-OPENAI_API_KEY="your_openai_api_key"
-# Tùy chọn, mặc định: gpt-4o-mini-search-preview
-OPENAI_WEB_MODEL="gpt-4o-mini-search-preview"
-
 # Cloudflare R2 (lưu ảnh bìa)
 R2_ACCOUNT_ID="your_cloudflare_account_id"
 R2_ACCESS_KEY_ID="your_r2_access_key_id"

app/api/auth/login/route.ts

@@ -36,8 +36,19 @@ export async function POST(req: NextRequest) {
     })
 
     if (!upstream.ok) {
-      const message = await upstream.text()
+      const raw = await upstream.text()
-      return NextResponse.json({ detail: message || "Authentication failed" }, { status: upstream.status })
+      let detail = "Authentication failed"
+      try {
+        const parsed = JSON.parse(raw) as { detail?: unknown }
+        if (typeof parsed.detail === "string") {
+          detail = parsed.detail
+        } else if (raw.trim()) {
+          detail = raw.trim()
+        }
+      } catch {
+        if (raw.trim()) detail = raw.trim()
+      }
+      return NextResponse.json({ detail }, { status: upstream.status })
     }
 
     const data = (await upstream.json()) as MobileLoginResponse
@@ -66,6 +77,19 @@ export async function POST(req: NextRequest) {
     return response
   } catch (error) {
     console.error("/api/auth/login failed", error)
+    const cause = error instanceof Error ? error.cause : null
+    const code =
+      cause && typeof cause === "object" && "code" in cause
+        ? String((cause as { code?: unknown }).code || "")
+        : ""
+    if (code === "ECONNREFUSED" || (error instanceof Error && error.message.includes("fetch failed"))) {
+      return NextResponse.json(
+        {
+          detail: `Không kết nối được reader-api tại ${readerApiOrigin}. Kiểm tra READER_API_ORIGIN và đảm bảo API đang chạy (ví dụ cổng 18080).`,
+        },
+        { status: 503 },
+      )
+    }
     return NextResponse.json({ detail: "Internal Server Error" }, { status: 500 })
   }
 }

app/mod/chuong/chapter-client.tsx

@@ -17,6 +17,12 @@ import {
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs"
 import { FileText, Loader2, Plus, ArrowLeft, Wand2, Edit, Trash2, Upload, Search, BookOpen } from "lucide-react"
 import { toast } from "sonner"
+import {
+    appendEpubSplitFormFields,
+    DEFAULT_EPUB_CHAPTER_TAG,
+    EPUB_HTML_TAG_PRESETS,
+    type EpubSplitMode,
+} from "@/lib/epub-split"
 import Link from "next/link"
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
 import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group"
@@ -58,11 +64,12 @@ interface Chapter {
 interface EpubPreviewData {
     preview: true
     fileName: string
-    splitMode: "toc" | "regex"
+    splitMode: EpubSplitMode
     detectedStructureType: "light_novel" | "standard"
     parserInfo?: {
         splitMode: string
         chapterRegexUsed?: string
+        chapterTagUsed?: string
         regexPreset?: string
         sourceSections: number
         chaptersDetected: number
@@ -116,6 +123,8 @@ function ChapterManager() {
     const [loadingOptimizeSource, setLoadingOptimizeSource] = useState(false)
     const [optRemovePrefix, setOptRemovePrefix] = useState(true)
     const [optRenumber, setOptRenumber] = useState(true)
+    const [optNormalizeTitles, setOptNormalizeTitles] = useState(true)
+    const [optNormalizeGenericOnly, setOptNormalizeGenericOnly] = useState(true)
     const [optimizedChapters, setOptimizedChapters] = useState<Chapter[]>([])
     const [optimizeSourceChapters, setOptimizeSourceChapters] = useState<Chapter[]>([])
 
@@ -147,9 +156,11 @@ function ChapterManager() {
     const [openEpubAppend, setOpenEpubAppend] = useState(false)
     const [epubFile, setEpubFile] = useState<File | null>(null)
     const epubInputRef = useRef<HTMLInputElement>(null)
-    const [epubSplitMode, setEpubSplitMode] = useState<"toc" | "regex">("regex")
+    const [epubSplitMode, setEpubSplitMode] = useState<EpubSplitMode>("regex")
     const [epubRegexPreset, setEpubRegexPreset] = useState("vi_chuong_hoi")
     const [epubCustomRegex, setEpubCustomRegex] = useState("")
+    const [epubTagPreset, setEpubTagPreset] = useState("a")
+    const [epubCustomTag, setEpubCustomTag] = useState(DEFAULT_EPUB_CHAPTER_TAG)
     const [appendingEpub, setAppendingEpub] = useState(false)
     const [epubPreviewData, setEpubPreviewData] = useState<EpubPreviewData | null>(null)
 
@@ -160,6 +171,13 @@ function ChapterManager() {
         return CHAPTER_REGEX_PRESETS.find((preset) => preset.id === epubRegexPreset)?.pattern || CHAPTER_REGEX_PRESETS[0].pattern
     }
 
+    const getEpubSourceTag = () => {
+        if (epubTagPreset === "custom") {
+            return epubCustomTag.trim() || DEFAULT_EPUB_CHAPTER_TAG
+        }
+        return EPUB_HTML_TAG_PRESETS.find((preset) => preset.id === epubTagPreset)?.tag || DEFAULT_EPUB_CHAPTER_TAG
+    }
+
     const handleEpubAppendPreview = async () => {
         if (!epubFile || !novelId) return
 
@@ -170,8 +188,10 @@ function ChapterManager() {
         try {
             const formData = new FormData()
             formData.append("file", epubFile)
-            formData.append("splitMode", epubSplitMode)
+            appendEpubSplitFormFields(formData, epubSplitMode, {
-            formData.append("chapterRegex", epubSplitMode === "regex" ? getEpubSourceRegex() : "")
+                chapterRegex: getEpubSourceRegex(),
+                chapterTag: getEpubSourceTag(),
+            })
             formData.append("chapterRegexPreset", epubRegexPreset)
             formData.append("appendTargetNovelId", novelId)
             formData.append("preview", "true")
@@ -209,8 +229,10 @@ function ChapterManager() {
         try {
             const formData = new FormData()
             formData.append("file", epubFile)
-            formData.append("splitMode", epubSplitMode)
+            appendEpubSplitFormFields(formData, epubSplitMode, {
-            formData.append("chapterRegex", epubSplitMode === "regex" ? getEpubSourceRegex() : "")
+                chapterRegex: getEpubSourceRegex(),
+                chapterTag: getEpubSourceTag(),
+            })
             formData.append("chapterRegexPreset", epubRegexPreset)
             formData.append("appendTargetNovelId", novelId)
 
@@ -256,7 +278,7 @@ function ChapterManager() {
                 })
             })
             const data = await res.json()
-            if (!res.ok) throw new Error(data.error || "Xóa thất bại")
+            if (!res.ok) throw new Error(data.error || data.detail || "Xóa thất bại")
             
             toast.success(`Đã xóa thành công ${data.deletedCount} chương!`, { id: toastId })
             setOpenBulkDelete(false)
@@ -429,7 +451,7 @@ function ChapterManager() {
     const handlePreviewOptimize = async () => {
         if (!novelId) return
 
-        if (!optRemovePrefix && !optRenumber) {
+        if (!optRemovePrefix && !optRenumber && !optNormalizeTitles) {
             toast.error("Vui lòng chọn ít nhất một tùy chọn tối ưu hóa")
             return
         }
@@ -446,6 +468,36 @@ function ChapterManager() {
             setOptimizeSourceChapters(allChapters)
             let newChapters = [...allChapters]
 
+            if (optNormalizeTitles) {
+                const previewRes = await fetch("/api/mod/chuong/normalize-titles/preview", {
+                    method: "POST",
+                    headers: { "Content-Type": "application/json" },
+                    body: JSON.stringify({
+                        novelId,
+                        overwriteGenericOnly: optNormalizeGenericOnly,
+                    }),
+                })
+                const previewData = await previewRes.json().catch(() => ({}))
+                if (!previewRes.ok) {
+                    throw new Error(previewData.detail || previewData.error || "Không thể tạo gợi ý tiêu đề chương")
+                }
+                const titleById = new Map<string, string>(
+                    (previewData.items || []).map((item: { id: string; suggestedTitle: string }) => [
+                        item.id,
+                        item.suggestedTitle,
+                    ]),
+                )
+                newChapters = newChapters.map((ch) => {
+                    const key = ch._id || ch.id
+                    const suggested = key ? titleById.get(key) : undefined
+                    return suggested ? { ...ch, title: suggested } : ch
+                })
+                const changeCount = Number(previewData.changeCount || 0)
+                if (changeCount === 0) {
+                    toast.info("Không tìm thấy tiêu đề chương nào cần chuẩn hóa theo bộ lọc hiện tại")
+                }
+            }
+
             if (optRenumber) {
                 newChapters.sort((a, b) => a.number - b.number)
                 newChapters = newChapters.map((ch, idx) => ({
@@ -636,10 +688,10 @@ function ChapterManager() {
                                     <h3 className="font-semibold text-sm border-b pb-2">Giải Thuật Tách Chương</h3>
                                     <div className="flex items-center gap-4">
                                         <Label className="w-1/4">Phiên bản Text</Label>
-                                        <RadioGroup value={epubSplitMode} onValueChange={(v: "toc" | "regex") => {
+                                        <RadioGroup value={epubSplitMode} onValueChange={(v: EpubSplitMode) => {
                                             setEpubSplitMode(v)
                                             setEpubPreviewData(null)
-                                        }} className="flex items-center gap-4">
+                                        }} className="flex flex-wrap items-center gap-4">
                                             <div className="flex items-center space-x-2">
                                                 <RadioGroupItem value="toc" id="toc_mode_a" />
                                                 <Label htmlFor="toc_mode_a" className="cursor-pointer font-normal">Mục lục (TOC)</Label>
@@ -648,9 +700,50 @@ function ChapterManager() {
                                                 <RadioGroupItem value="regex" id="regex_mode_a" />
                                                 <Label htmlFor="regex_mode_a" className="cursor-pointer font-normal">Quy tắc (Regex)</Label>
                                             </div>
+                                            <div className="flex items-center space-x-2">
+                                                <RadioGroupItem value="tag" id="tag_mode_a" />
+                                                <Label htmlFor="tag_mode_a" className="cursor-pointer font-normal">Thẻ HTML</Label>
+                                            </div>
                                         </RadioGroup>
                                     </div>
 
+                                    {epubSplitMode === "tag" && (
+                                        <div className="space-y-3 pt-2">
+                                            <div className="flex flex-col gap-2">
+                                                <Label>Thẻ HTML tách chương</Label>
+                                                <Select value={epubTagPreset} onValueChange={(v) => {
+                                                    setEpubTagPreset(v)
+                                                    setEpubPreviewData(null)
+                                                }}>
+                                                    <SelectTrigger>
+                                                        <SelectValue />
+                                                    </SelectTrigger>
+                                                    <SelectContent>
+                                                        {EPUB_HTML_TAG_PRESETS.map((preset) => (
+                                                            <SelectItem key={preset.id} value={preset.id}>
+                                                                {preset.name}
+                                                            </SelectItem>
+                                                        ))}
+                                                        <SelectItem value="custom">Tùy chỉnh tên thẻ...</SelectItem>
+                                                    </SelectContent>
+                                                </Select>
+                                            </div>
+                                            {epubTagPreset === "custom" && (
+                                                <div className="flex flex-col gap-2">
+                                                    <Label>Tên thẻ (ví dụ: a, h2)</Label>
+                                                    <Input
+                                                        value={epubCustomTag}
+                                                        onChange={(e) => {
+                                                            setEpubCustomTag(e.target.value)
+                                                            setEpubPreviewData(null)
+                                                        }}
+                                                        placeholder="a"
+                                                    />
+                                                </div>
+                                            )}
+                                        </div>
+                                    )}
+                                    
                                     {epubSplitMode === "regex" && (
                                         <div className="space-y-3 pt-2">
                                             <div className="flex flex-col gap-2">
@@ -696,12 +789,15 @@ function ChapterManager() {
                                             <div className="text-xs space-y-1 text-right">
                                                 <p><span className="text-muted-foreground">Flow file HTML:</span> {epubPreviewData.parserInfo.sourceSections}</p>
                                                 <p><span className="text-muted-foreground">Phát hiện:</span> {epubPreviewData.parserInfo.chaptersDetected} chương</p>
+                                                {epubPreviewData.parserInfo.chapterTagUsed && (
+                                                    <p><span className="text-muted-foreground">Thẻ HTML:</span> &lt;{epubPreviewData.parserInfo.chapterTagUsed}&gt;</p>
+                                                )}
                                             </div>
                                         </div>
 
                                         {epubPreviewData.chaptersPreview.length === 0 ? (
                                             <div className="p-4 text-center border border-dashed rounded bg-muted/40 text-muted-foreground text-sm">
-                                                Không tách được chương nào. Xem lại Tùy chọn Tách / Mẫu Regex.
+                                                Không tách được chương nào. Xem lại chế độ tách (TOC / Regex / Thẻ HTML).
                                             </div>
                                         ) : (
                                             <div className="space-y-3 max-h-[300px] overflow-y-auto border rounded-md p-2 bg-card">
@@ -730,7 +826,7 @@ function ChapterManager() {
                             <DialogFooter className="mt-auto pt-4 border-t">
                                 <Button variant="outline" onClick={() => setOpenEpubAppend(false)} disabled={appendingEpub}>Huỷ</Button>
                                 {!epubPreviewData ? (
-                                    <Button onClick={handleEpubAppendPreview} disabled={appendingEpub}>
+                                    <Button onClick={handleEpubAppendPreview} disabled={appendingEpub || (epubSplitMode === "regex" && epubRegexPreset === "custom" && !epubCustomRegex.trim()) || (epubSplitMode === "tag" && epubTagPreset === "custom" && !epubCustomTag.trim())}>
                                         {appendingEpub && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
                                         Xem trước dữ liệu
                                     </Button>
@@ -887,6 +983,26 @@ function ChapterManager() {
                                             <p className="text-sm text-muted-foreground mt-1">Sắp xếp và gán lại số chương liên tục từ 1 đến N để sửa lỗi nhảy cóc</p>
                                         </div>
                                     </label>
+                                    <label className="flex items-center gap-3 p-4 border rounded-lg cursor-pointer hover:bg-muted/50 transition-colors">
+                                        <input type="checkbox" className="w-5 h-5 rounded" checked={optNormalizeTitles} onChange={(e) => setOptNormalizeTitles(e.target.checked)} />
+                                        <div>
+                                            <p className="font-medium text-base">Chuẩn hóa tiêu đề từ nội dung đầu chương</p>
+                                            <p className="text-sm text-muted-foreground mt-1">
+                                                Ví dụ: dòng <span className="line-through">Chương 8</span> + dòng <strong>Tất Cả Đều Là Ảo Giác</strong> → tiêu đề <strong>Tất Cả Đều Là Ảo Giác</strong>
+                                            </p>
+                                            {optNormalizeTitles && (
+                                                <label className="mt-3 flex items-center gap-2 text-sm text-muted-foreground cursor-pointer">
+                                                    <input
+                                                        type="checkbox"
+                                                        className="w-4 h-4 rounded"
+                                                        checked={optNormalizeGenericOnly}
+                                                        onChange={(e) => setOptNormalizeGenericOnly(e.target.checked)}
+                                                    />
+                                                    Chỉ sửa tiêu đề dạng &quot;Chương N&quot; (giữ tiêu đề đã đặt tay)
+                                                </label>
+                                            )}
+                                        </div>
+                                    </label>
                                 </div>
                             ) : (
                                 <div className="flex-1 overflow-auto border rounded-lg my-4 custom-scrollbar">

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

@@ -6,6 +6,12 @@ import { Loader2 } from "lucide-react"
 import { Input } from "@/components/ui/input"
 import { Progress } from "@/components/ui/progress"
 import { toast } from "sonner"
+import {
+  appendEpubSplitFormFields,
+  DEFAULT_EPUB_CHAPTER_TAG,
+  EPUB_HTML_TAG_PRESETS,
+  type EpubSplitMode,
+} from "@/lib/epub-split"
 
 /** Đồng bộ với `MOD_EPUB_MAX_CHAPTERS` trên reader-api. */
 const BATCH_IMPORT_MAX_CHAPTERS = 4000
@@ -46,10 +52,17 @@ function normalizeNovelTitle(raw: string): string {
 }
 
 export function ImportBatchClient() {
-  const [splitMode, setSplitMode] = useState<"toc" | "regex">("toc")
+  const [splitMode, setSplitMode] = useState<EpubSplitMode>("toc")
   const [chapterStartPattern, setChapterStartPattern] = useState(
     "^\\s*(?:[#>*\\-\\[]\\s*)*(?:ch(?:u\\.?|ương|uong)?|chapter|hồi|hoi|quyển|quyen|phần|phan|tập|tap)\\s*\\d+(?:[\\.:\\-\\)]\\s*|\\s+).+$",
   )
+  const [tagPreset, setTagPreset] = useState("a")
+  const [customTag, setCustomTag] = useState(DEFAULT_EPUB_CHAPTER_TAG)
+
+  const getChapterTag = () => {
+    if (tagPreset === "custom") return customTag.trim() || DEFAULT_EPUB_CHAPTER_TAG
+    return EPUB_HTML_TAG_PRESETS.find((p) => p.id === tagPreset)?.tag || DEFAULT_EPUB_CHAPTER_TAG
+  }
   const [replaceExisting, setReplaceExisting] = useState(false)
   const [running, setRunning] = useState(false)
   const [progress, setProgress] = useState({ current: 0, total: 0 })
@@ -142,8 +155,10 @@ export function ImportBatchClient() {
 
     const formAi = new FormData()
     formAi.append("file", file)
-    formAi.append("splitMode", splitMode)
+    appendEpubSplitFormFields(formAi, splitMode, {
-    if (splitMode === "regex") formAi.append("chapterRegex", chapterStartPattern)
+      chapterRegex: chapterStartPattern,
+      chapterTag: getChapterTag(),
+    })
     formAi.append("title", title)
     formAi.append("authorName", author)
 
@@ -184,8 +199,10 @@ export function ImportBatchClient() {
     const formParse = new FormData()
     formParse.append("file", file)
     formParse.append("preview", "true")
-    formParse.append("splitMode", splitMode)
+    appendEpubSplitFormFields(formParse, splitMode, {
-    if (splitMode === "regex") formParse.append("chapterRegex", chapterStartPattern)
+      chapterRegex: chapterStartPattern,
+      chapterTag: getChapterTag(),
+    })
     formParse.append("enforceMaxChapters", "true")
 
     const r3 = await fetch("/api/mod/epub", { method: "POST", credentials: "include", body: formParse, signal })
@@ -220,15 +237,17 @@ export function ImportBatchClient() {
         fileName: displayPath,
         ok: false,
         resolvedTitle: title,
-        error: "Bước 3: không tách được chương với cấu hình TOC/Regex hiện tại",
+        error: "Bước 3: không tách được chương với cấu hình TOC/Regex/Thẻ HTML hiện tại",
       }
     }
 
     const formImport = new FormData()
     formImport.append("file", file)
     formImport.append("preview", "false")
-    formImport.append("splitMode", splitMode)
+    appendEpubSplitFormFields(formImport, splitMode, {
-    if (splitMode === "regex") formImport.append("chapterRegex", chapterStartPattern)
+      chapterRegex: chapterStartPattern,
+      chapterTag: getChapterTag(),
+    })
     formImport.append("title", title)
     formImport.append("authorName", author)
     formImport.append("status", status)
@@ -348,11 +367,12 @@ export function ImportBatchClient() {
           <select
             className="rounded border px-2 py-1 text-sm"
             value={splitMode}
-            onChange={(e) => setSplitMode(e.target.value as "toc" | "regex")}
+            onChange={(e) => setSplitMode(e.target.value as EpubSplitMode)}
             disabled={running}
           >
             <option value="toc">TOC</option>
             <option value="regex">Regex tiếng Việt</option>
+            <option value="tag">Thẻ HTML</option>
           </select>
           {splitMode === "regex" && (
             <Input
@@ -363,6 +383,30 @@ export function ImportBatchClient() {
               placeholder="Regex bắt đầu chương"
             />
           )}
+          {splitMode === "tag" && (
+            <>
+              <select
+                className="rounded border px-2 py-1 text-sm"
+                value={tagPreset}
+                onChange={(e) => setTagPreset(e.target.value)}
+                disabled={running}
+              >
+                {EPUB_HTML_TAG_PRESETS.map((preset) => (
+                  <option key={preset.id} value={preset.id}>{preset.name}</option>
+                ))}
+                <option value="custom">Tùy chỉnh tên thẻ...</option>
+              </select>
+              {tagPreset === "custom" && (
+                <Input
+                  className="max-w-[120px] font-mono text-xs"
+                  value={customTag}
+                  onChange={(e) => setCustomTag(e.target.value)}
+                  disabled={running}
+                  placeholder="a, h2"
+                />
+              )}
+            </>
+          )}
         </div>
         <label className="flex items-center gap-2 text-sm">
           <input type="checkbox" checked={replaceExisting} onChange={(e) => setReplaceExisting(e.target.checked)} disabled={running} />

app/mod/import/import-client.tsx

@@ -7,6 +7,12 @@ import { Input } from "@/components/ui/input"
 import { Textarea } from "@/components/ui/textarea"
 import { Progress } from "@/components/ui/progress"
 import { toast } from "sonner"
+import {
+  appendEpubSplitFormFields,
+  DEFAULT_EPUB_CHAPTER_TAG,
+  EPUB_HTML_TAG_PRESETS,
+  type EpubSplitMode,
+} from "@/lib/epub-split"
 
 type AssetItem = {
   id: string
@@ -49,8 +55,15 @@ export function ImportClient() {
   const [selectedGenreIds, setSelectedGenreIds] = useState<string[]>([])
   const [genreQuery, setGenreQuery] = useState("")
   const [addingGenre, setAddingGenre] = useState(false)
-  const [splitMode, setSplitMode] = useState<"toc" | "regex">("toc")
+  const [splitMode, setSplitMode] = useState<EpubSplitMode>("toc")
   const [chapterStartPattern, setChapterStartPattern] = useState("^\\s*(?:[#>*\\-\\[]\\s*)*(?:ch(?:u\\.?|ương|uong)?|chapter|hồi|hoi|quyển|quyen|phần|phan|tập|tap)\\s*\\d+(?:[\\.:\\-\\)]\\s*|\\s+).+$")
+  const [tagPreset, setTagPreset] = useState("a")
+  const [customTag, setCustomTag] = useState(DEFAULT_EPUB_CHAPTER_TAG)
+
+  const getChapterTag = () => {
+    if (tagPreset === "custom") return customTag.trim() || DEFAULT_EPUB_CHAPTER_TAG
+    return EPUB_HTML_TAG_PRESETS.find((p) => p.id === tagPreset)?.tag || DEFAULT_EPUB_CHAPTER_TAG
+  }
   const [replaceExisting, setReplaceExisting] = useState(false)
 
   const [previewLoading, setPreviewLoading] = useState(false)
@@ -242,8 +255,10 @@ export function ImportClient() {
       const form = new FormData()
       form.append("file", epubFile)
       form.append("preview", "true")
-      form.append("splitMode", splitMode)
+      appendEpubSplitFormFields(form, splitMode, {
-      if (splitMode === "regex") form.append("chapterRegex", chapterStartPattern)
+        chapterRegex: chapterStartPattern,
+        chapterTag: getChapterTag(),
+      })
       form.append("title", title)
       form.append("authorName", author)
       const res = await fetch("/api/mod/epub/ai-suggest", { method: "POST", credentials: "include", body: form })
@@ -291,8 +306,10 @@ export function ImportClient() {
       const form = new FormData()
       form.append("file", epubFile)
       form.append("preview", "true")
-      form.append("splitMode", splitMode)
+      appendEpubSplitFormFields(form, splitMode, {
-      if (splitMode === "regex") form.append("chapterRegex", chapterStartPattern)
+        chapterRegex: chapterStartPattern,
+        chapterTag: getChapterTag(),
+      })
       const res = await fetch("/api/mod/epub", { method: "POST", credentials: "include", body: form })
       const data = await res.json()
       if (!res.ok) throw new Error(data?.detail || "Parse preview thất bại")
@@ -306,7 +323,7 @@ export function ImportClient() {
       const total = Number(data?.novel?.totalChapters || data?.chapterCount || 0)
       setChapterCount(total)
       if (total <= 0) {
-        setParseError("Không tách được chương từ EPUB này với cấu hình hiện tại. Thử đổi TOC/Regex rồi parse lại.")
+        setParseError("Không tách được chương từ EPUB này với cấu hình hiện tại. Thử đổi TOC / Regex / Thẻ HTML rồi parse lại.")
       }
       toast.success("Đã tạo preview chương")
     } catch (error) {
@@ -324,8 +341,10 @@ export function ImportClient() {
       const form = new FormData()
       form.append("file", epubFile)
       form.append("preview", "false")
-      form.append("splitMode", splitMode)
+      appendEpubSplitFormFields(form, splitMode, {
-      if (splitMode === "regex") form.append("chapterRegex", chapterStartPattern)
+        chapterRegex: chapterStartPattern,
+        chapterTag: getChapterTag(),
+      })
       form.append("title", title)
       form.append("originalTitle", originalTitle)
       form.append("authorName", author)
@@ -351,7 +370,7 @@ export function ImportClient() {
     setPreviewItems([])
     setChapterCount(0)
     setParseError("")
-  }, [splitMode, chapterStartPattern])
+  }, [splitMode, chapterStartPattern, tagPreset, customTag])
 
   useEffect(() => {
     if (step === 3 && asset) {
@@ -523,13 +542,27 @@ export function ImportClient() {
         <section className="space-y-3 rounded-xl border p-4">
           <div className="flex flex-wrap items-center gap-3 rounded-md border bg-muted/30 p-3">
             <label className="text-sm font-medium">Tách chương:</label>
-            <select className="rounded border px-2 py-1 text-sm" value={splitMode} onChange={(e) => setSplitMode(e.target.value as "toc" | "regex")}>
+            <select className="rounded border px-2 py-1 text-sm" value={splitMode} onChange={(e) => setSplitMode(e.target.value as EpubSplitMode)}>
               <option value="toc">TOC (lọc intro/mục lục)</option>
               <option value="regex">Regex tiếng Việt</option>
+              <option value="tag">Thẻ HTML</option>
             </select>
             {splitMode === "regex" && (
               <Input value={chapterStartPattern} onChange={(e) => setChapterStartPattern(e.target.value)} placeholder="Regex bắt đầu chương" />
             )}
+            {splitMode === "tag" && (
+              <>
+                <select className="rounded border px-2 py-1 text-sm" value={tagPreset} onChange={(e) => setTagPreset(e.target.value)}>
+                  {EPUB_HTML_TAG_PRESETS.map((preset) => (
+                    <option key={preset.id} value={preset.id}>{preset.name}</option>
+                  ))}
+                  <option value="custom">Tùy chỉnh tên thẻ...</option>
+                </select>
+                {tagPreset === "custom" && (
+                  <Input value={customTag} onChange={(e) => setCustomTag(e.target.value)} placeholder="Ví dụ: a, h2" className="max-w-[120px]" />
+                )}
+              </>
+            )}
           </div>
           <div className="flex items-center justify-between">
             <h2 className="font-semibold">Preview chapters</h2>

app/mod/truyen/novel-client.tsx

@@ -18,7 +18,13 @@ import { toast } from "sonner"
 import Link from "next/link"
 import { getNovelStatusBadgeClass } from "@/lib/novel-status"
 import { Progress } from "@/components/ui/progress"
-import { MOD_AI_PREFILL_STORAGE_KEY, type AINovelPrefillPayload } from "@/lib/mod-ai-tools"
+import {
+    appendEpubSplitFormFields,
+    DEFAULT_EPUB_CHAPTER_TAG,
+    EPUB_HTML_TAG_PRESETS,
+    type EpubSplitMode,
+    splitModeLabel,
+} from "@/lib/epub-split"
 
 interface Novel {
     id: string
@@ -37,13 +43,14 @@ interface Genre {
 
 interface EpubPreviewData {
     fileName: string
-    splitMode: "toc" | "regex"
+    splitMode: EpubSplitMode
     detectedStructureType: "standard" | "light_novel"
     hasCoverFromEpub?: boolean
     coverPreviewDataUrl?: string | null
     parserInfo?: {
-        splitMode: "toc" | "regex"
+        splitMode: EpubSplitMode
         chapterRegexUsed?: string | null
+        chapterTagUsed?: string | null
         regexPreset?: string | null
         sourceSections: number
         chaptersDetected: number
@@ -125,9 +132,11 @@ export function NovelClient() {
     const [epubTitle, setEpubTitle] = useState("")
     const [epubAuthorName, setEpubAuthorName] = useState("")
     const [epubDescription, setEpubDescription] = useState("")
-    const [epubSplitMode, setEpubSplitMode] = useState<"toc" | "regex">("toc")
+    const [epubSplitMode, setEpubSplitMode] = useState<EpubSplitMode>("toc")
     const [epubRegexPreset, setEpubRegexPreset] = useState<string>("vi_chuong_hoi")
     const [epubCustomRegex, setEpubCustomRegex] = useState("")
+    const [epubTagPreset, setEpubTagPreset] = useState<string>("a")
+    const [epubCustomTag, setEpubCustomTag] = useState(DEFAULT_EPUB_CHAPTER_TAG)
     const epubInputRef = useRef<HTMLInputElement>(null)
     const epubFolderInputRef = useRef<HTMLInputElement>(null)
 
@@ -167,7 +176,6 @@ export function NovelClient() {
     const [pageSize, setPageSize] = useState(20)
     const [bulkProgress, setBulkProgress] = useState<Record<string, BulkUploadProgressItem>>({})
     const [bulkDuplicateHandling, setBulkDuplicateHandling] = useState<BulkDuplicateHandling>("ask")
-    const [pendingAIPrefill, setPendingAIPrefill] = useState<AINovelPrefillPayload | null>(null)
 
     const getSelectedChapterRegex = () => {
         if (epubRegexPreset === "custom") {
@@ -177,6 +185,13 @@ export function NovelClient() {
         return CHAPTER_REGEX_PRESETS.find((preset) => preset.id === epubRegexPreset)?.pattern || CHAPTER_REGEX_PRESETS[0].pattern
     }
 
+    const getSelectedChapterTag = () => {
+        if (epubTagPreset === "custom") {
+            return epubCustomTag.trim() || DEFAULT_EPUB_CHAPTER_TAG
+        }
+        return EPUB_HTML_TAG_PRESETS.find((preset) => preset.id === epubTagPreset)?.tag || DEFAULT_EPUB_CHAPTER_TAG
+    }
+
     const normalizeEpubFiles = (files: File[]) => {
         return files.filter((file) => file.name.toLowerCase().endsWith(".epub"))
     }
@@ -338,79 +353,6 @@ export function NovelClient() {
         setGenreQuery("")
     }
 
-    const applyAIPrefillToAddForm = (prefill: AINovelPrefillPayload) => {
-        const nextTitle = prefill.title?.trim() || ""
-        const nextAuthor = prefill.authorName?.trim() || ""
-
-        setTitle(nextTitle)
-        setOriginalTitle((prefill.originalTitle || nextTitle).trim())
-        setAuthorName(nextAuthor)
-        setOriginalAuthorName((prefill.originalAuthorName || nextAuthor).trim())
-        setDescription((prefill.description || "").trim())
-        setCoverUrl((prefill.coverUrl || "").trim())
-        setGenreQuery("")
-
-        const validStatus = ["Đang ra", "Hoàn thành", "Tạm ngưng"].includes(prefill.status || "")
-            ? (prefill.status as "Đang ra" | "Hoàn thành" | "Tạm ngưng")
-            : "Đang ra"
-        setStatus(validStatus)
-
-        const suggestedGenres = Array.isArray(prefill.genresSuggested) ? prefill.genresSuggested : []
-        if (suggestedGenres.length === 0 || genres.length === 0) {
-            setSelectedGenres([])
-            return
-        }
-
-        const byName = new Map(genres.map((genre) => [normalizeGenreName(genre.name), genre.id]))
-        const pickedIds: string[] = []
-        const missing: string[] = []
-
-        for (const name of suggestedGenres) {
-            const id = byName.get(normalizeGenreName(name))
-            if (!id) {
-                missing.push(name)
-                continue
-            }
-            if (!pickedIds.includes(id)) pickedIds.push(id)
-        }
-
-        setSelectedGenres(pickedIds)
-
-        if (missing.length > 0) {
-            toast.info(`The loai goi y chua co san: ${missing.slice(0, 4).join(", ")}`)
-        }
-    }
-
-    useEffect(() => {
-        if (typeof window === "undefined") return
-
-        const raw = window.localStorage.getItem(MOD_AI_PREFILL_STORAGE_KEY)
-        if (!raw) return
-
-        window.localStorage.removeItem(MOD_AI_PREFILL_STORAGE_KEY)
-        try {
-            const parsed = JSON.parse(raw) as AINovelPrefillPayload
-            setPendingAIPrefill(parsed)
-            setOpenAdd(true)
-        } catch {
-            toast.error("Du lieu AI Tool khong hop le")
-        }
-    }, [])
-
-    useEffect(() => {
-        if (!pendingAIPrefill) return
-
-        const needsGenres = Array.isArray(pendingAIPrefill.genresSuggested)
-            && pendingAIPrefill.genresSuggested.length > 0
-            && genres.length === 0
-
-        if (needsGenres) return
-
-        applyAIPrefillToAddForm(pendingAIPrefill)
-        setPendingAIPrefill(null)
-        toast.success("Da nap du lieu de xuat tu AI Tool")
-    }, [pendingAIPrefill, genres])
-
     const filteredNovels = useMemo(() => {
         const keyword = searchKeyword.trim().toLowerCase()
         if (!keyword) return novels
@@ -739,7 +681,7 @@ export function NovelClient() {
     const requestEpubPreview = async (
         file: File,
         options?: {
-            splitMode?: "toc" | "regex"
+            splitMode?: EpubSplitMode
             regexPreset?: string
             regexInput?: string
             preserveEditedMetadata?: boolean
@@ -758,11 +700,12 @@ export function NovelClient() {
         const formData = new FormData()
         formData.append("file", file)
         formData.append("preview", "true")
-        formData.append("splitMode", splitMode)
+        appendEpubSplitFormFields(formData, splitMode, {
-
+            chapterRegex: regexInput,
+            chapterTag: getSelectedChapterTag(),
+        })
         if (splitMode === "regex") {
             formData.append("chapterRegexPreset", regexPreset)
-            formData.append("chapterRegex", regexInput)
         }
 
         const res = await fetch("/api/mod/epub", {
@@ -873,6 +816,10 @@ export function NovelClient() {
             toast.error("Vui lòng nhập regex tùy chỉnh trước khi tải lên")
             return
         }
+        if (epubSplitMode === "tag" && epubTagPreset === "custom" && !epubCustomTag.trim()) {
+            toast.error("Vui lòng nhập tên thẻ HTML trước khi tải lên")
+            return
+        }
 
         setUploadingEpub(true)
         const formData = new FormData()
@@ -880,12 +827,13 @@ export function NovelClient() {
         formData.append("title", epubTitle)
         formData.append("authorName", epubAuthorName)
         formData.append("description", epubDescription)
-        formData.append("splitMode", epubSplitMode)
+        appendEpubSplitFormFields(formData, epubSplitMode, {
+            chapterRegex: epubRegexPreset === "custom" ? epubCustomRegex.trim() : getSelectedChapterRegex(),
+            chapterTag: getSelectedChapterTag(),
+        })
 
         if (epubSplitMode === "regex") {
-            const selectedRegex = epubRegexPreset === "custom" ? epubCustomRegex.trim() : getSelectedChapterRegex()
             formData.append("chapterRegexPreset", epubRegexPreset)
-            formData.append("chapterRegex", selectedRegex)
         }
 
         try {
@@ -1286,7 +1234,8 @@ export function NovelClient() {
                                             <>
                                                 <p>
                                                     <span className="font-semibold">Parser:</span>{" "}
-                                                    {epubPreviewData.parserInfo.splitMode === "regex" ? "Regex" : "TOC"}
+                                                    {splitModeLabel(epubPreviewData.parserInfo.splitMode)}
+                                                    {epubPreviewData.parserInfo.chapterTagUsed ? ` (${epubPreviewData.parserInfo.chapterTagUsed})` : ""}
                                                 </p>
                                                 <p>
                                                     <span className="font-semibold">Nguồn phân tích:</span>{" "}
@@ -1310,6 +1259,12 @@ export function NovelClient() {
                                                         {epubPreviewData.parserInfo.chapterRegexUsed}
                                                     </p>
                                                 )}
+                                                {epubPreviewData.parserInfo.chapterTagUsed && (
+                                                    <p>
+                                                        <span className="font-semibold">Thẻ HTML dùng:</span>{" "}
+                                                        &lt;{epubPreviewData.parserInfo.chapterTagUsed}&gt;
+                                                    </p>
+                                                )}
                                             </>
                                         )}
                                     </div>
@@ -1321,14 +1276,31 @@ export function NovelClient() {
                                                 <label className="text-xs font-medium text-muted-foreground">Chế độ tách chương</label>
                                                 <select
                                                     value={epubSplitMode}
-                                                    onChange={(e) => setEpubSplitMode(e.target.value as "toc" | "regex")}
+                                                    onChange={(e) => setEpubSplitMode(e.target.value as EpubSplitMode)}
                                                     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="toc">Theo TOC trong EPUB</option>
                                                     <option value="regex">Theo Regex</option>
+                                                    <option value="tag">Theo thẻ HTML</option>
                                                 </select>
                                             </div>
 
+                                            {epubSplitMode === "tag" && (
+                                                <div className="grid gap-2">
+                                                    <label className="text-xs font-medium text-muted-foreground">Thẻ tách chương</label>
+                                                    <select
+                                                        value={epubTagPreset}
+                                                        onChange={(e) => setEpubTagPreset(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"
+                                                    >
+                                                        {EPUB_HTML_TAG_PRESETS.map((preset) => (
+                                                            <option key={preset.id} value={preset.id}>{preset.name}</option>
+                                                        ))}
+                                                        <option value="custom">Tự nhập tên thẻ</option>
+                                                    </select>
+                                                </div>
+                                            )}
+
                                             {epubSplitMode === "regex" && (
                                                 <div className="grid gap-2">
                                                     <label className="text-xs font-medium text-muted-foreground">Preset Regex</label>
@@ -1365,12 +1337,35 @@ export function NovelClient() {
                                             </>
                                         )}
 
+                                        {epubSplitMode === "tag" && (
+                                            <>
+                                                {epubTagPreset !== "custom" ? (
+                                                    <div className="rounded-md bg-muted/40 p-2 text-xs">
+                                                        Mỗi thẻ &lt;{getSelectedChapterTag()}&gt; mở đầu một chương. Tiêu đề lấy từ nội dung trong thẻ (nếu có).
+                                                    </div>
+                                                ) : (
+                                                    <div className="grid gap-2">
+                                                        <label className="text-xs font-medium text-muted-foreground">Tên thẻ HTML</label>
+                                                        <Input
+                                                            value={epubCustomTag}
+                                                            onChange={(e) => setEpubCustomTag(e.target.value)}
+                                                            placeholder="Ví dụ: a, h2, h1"
+                                                        />
+                                                    </div>
+                                                )}
+                                            </>
+                                        )}
+
                                         <div className="flex justify-end">
                                             <Button
                                                 type="button"
                                                 variant="secondary"
                                                 onClick={handleReparseEpub}
-                                                disabled={previewingEpub || (epubSplitMode === "regex" && epubRegexPreset === "custom" && !epubCustomRegex.trim())}
+                                                disabled={
+                                                    previewingEpub
+                                                    || (epubSplitMode === "regex" && epubRegexPreset === "custom" && !epubCustomRegex.trim())
+                                                    || (epubSplitMode === "tag" && epubTagPreset === "custom" && !epubCustomTag.trim())
+                                                }
                                             >
                                                 {previewingEpub && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
                                                 Phân tích lại theo cấu hình

lib/auth-context.tsx

@@ -68,6 +68,9 @@ async function initializeGoogleIdentity(clientId: string): Promise<void> {
 
   if (googleInitializedClientId === clientId) return
 
+  const hostname = typeof window !== "undefined" ? window.location.hostname : ""
+  const isLocalHost = hostname === "localhost" || hostname === "127.0.0.1"
+
   // Re-initialize with new clientId (or first time)
   googleApi.initialize({
     client_id: clientId,
@@ -86,7 +89,8 @@ async function initializeGoogleIdentity(clientId: string): Promise<void> {
     },
     auto_select: false,
     cancel_on_tap_outside: true,
-    use_fedcm_for_prompt: true,
+    // FedCM on localhost often yields tokens backend cannot verify; production keeps FedCM.
+    use_fedcm_for_prompt: !isLocalHost,
   })
 
   googleInitializedClientId = clientId

lib/epub-split.ts

@@ -0,0 +1,31 @@
+export type EpubSplitMode = "toc" | "regex" | "tag"
+
+export const EPUB_HTML_TAG_PRESETS = [
+  { id: "a", name: "Thẻ <a> (anchor / mục lục liên kết)", tag: "a" },
+  { id: "h2", name: "Thẻ <h2>", tag: "h2" },
+  { id: "h1", name: "Thẻ <h1>", tag: "h1" },
+  { id: "h3", name: "Thẻ <h3>", tag: "h3" },
+  { id: "p", name: "Thẻ <p>", tag: "p" },
+] as const
+
+export const DEFAULT_EPUB_CHAPTER_TAG = "a"
+
+export function splitModeLabel(mode: string | undefined): string {
+  if (mode === "regex") return "Regex"
+  if (mode === "tag") return "Thẻ HTML"
+  return "TOC"
+}
+
+export function appendEpubSplitFormFields(
+  form: FormData,
+  splitMode: EpubSplitMode,
+  options?: { chapterRegex?: string; chapterTag?: string },
+) {
+  form.append("splitMode", splitMode)
+  if (splitMode === "regex" && options?.chapterRegex) {
+    form.append("chapterRegex", options.chapterRegex)
+  }
+  if (splitMode === "tag") {
+    form.append("chapterTag", (options?.chapterTag || DEFAULT_EPUB_CHAPTER_TAG).trim() || DEFAULT_EPUB_CHAPTER_TAG)
+  }
+}

lib/mod-ai-tools.ts

@@ -1,25 +0,0 @@
-export const MOD_AI_PREFILL_STORAGE_KEY = "mod:ai-tool:novel-prefill"
-export const MOD_AI_MODEL_STORAGE_KEY = "mod:ai-tool:model"
-export const MOD_AI_WEB_DEFAULT_MODEL = "gpt-4o-mini-search-preview"
-
-export const MOD_AI_WEB_MODEL_OPTIONS = [
-  {
-    value: "gpt-4o-mini-search-preview",
-    label: "gpt-4o-mini-search-preview (nhanh)",
-  },
-  {
-    value: "gpt-4o-search-preview",
-    label: "gpt-4o-search-preview (chat luong cao)",
-  },
-] as const
-
-export type AINovelPrefillPayload = {
-  title?: string
-  originalTitle?: string
-  authorName?: string
-  originalAuthorName?: string
-  description?: string
-  coverUrl?: string
-  status?: "Đang ra" | "Hoàn thành" | "Tạm ngưng"
-  genresSuggested?: string[]
-}

test-ai.js

@@ -1,68 +0,0 @@
-require('dotenv').config({ path: '.env' });
-
-async function fetchJsonWithTimeout(url, init, timeoutMs = 25000) {
-  const controller = new AbortController();
-  const timeout = setTimeout(() => controller.abort(), timeoutMs);
-  try {
-    const res = await fetch(url, { ...init, signal: controller.signal, cache: "no-store" });
-    if (!res.ok) {
-      const text = await res.text().catch(() => "");
-      throw new Error(`HTTP ${res.status}: ${text.slice(0, 500)}`);
-    }
-    return await res.json();
-  } finally {
-    clearTimeout(timeout);
-  }
-}
-
-const prompt = "Please reply with { \"ready\": true } in JSON";
-
-async function tryGoogle() {
-  const apiKey = process.env.GOOGLE_AI_KEY;
-  if (!apiKey) return console.log("Google: No key");
-  try {
-    const data = await fetchJsonWithTimeout(
-      `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=${apiKey}`,
-      {
-        method: "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({
-          contents: [{ role: "user", parts: [{ text: prompt }] }],
-          tools: [{ googleSearch: {} }],
-          generationConfig: { temperature: 0.2, maxOutputTokens: 1400 },
-        }),
-      }
-    );
-    console.log("Google Success:", JSON.stringify(data).slice(0, 100));
-  } catch(e) { console.log("Google Error:", e.stack || e.message); }
-}
-
-async function tryDeepSeek() {
-  const apiKey = process.env.DEEKSEEK_KEY || process.env.DEEPSEEK_KEY;
-  if (!apiKey) return console.log("DeepSeek: No key");
-  try {
-    const data = await fetchJsonWithTimeout(
-        "https://api.deepseek.com/v1/chat/completions",
-        {
-          method: "POST",
-          headers: {
-            "Content-Type": "application/json",
-            Authorization: `Bearer ${apiKey}`,
-          },
-          body: JSON.stringify({
-            model: "deepseek-chat",
-            temperature: 0.2,
-            max_tokens: 500,
-            messages: [{ role: "user", content: prompt }],
-          }),
-        }
-      );
-      console.log("DeepSeek Success:", JSON.stringify(data).slice(0,100));
-  } catch(e) { console.log("DeepSeek Error:", e.stack || e.message); }
-}
-
-async function run() {
-    await tryGoogle();
-    await tryDeepSeek();
-}
-run();