t添加标签功能

web/src/components/LibraryTagBar.tsx

@@ -0,0 +1,164 @@
+import { useEffect, useMemo, useRef, useState } from 'react'
+import { Layers, Plus, Settings2, X } from 'lucide-react'
+
+import { MAX_LIBRARY_TAGS } from '../utils/libraryTags'
+import type { LibraryTagTab } from '../utils/libraryTags'
+
+/**
+ * 媒体库标签栏：固定「全部」+ 每个标签一个页签，选中后只展示该标签下的媒体库。
+ * 只是管理员/普通用户都能用的展示层过滤，不改动媒体库本身。
+ */
+export function LibraryTagBar({
+  tabs,
+  selectedTagId,
+  onSelect,
+  onCreate,
+  onManage,
+  manageLabel = '管理标签',
+  showCreate = true,
+  busy = false,
+}: {
+  tabs: LibraryTagTab[]
+  selectedTagId: string
+  onSelect: (tagId: string) => void
+  onCreate?: (name: string) => void
+  onManage?: () => void
+  manageLabel?: string
+  showCreate?: boolean
+  busy?: boolean
+}) {
+  const [creating, setCreating] = useState(false)
+  const [draft, setDraft] = useState('')
+  const inputRef = useRef<HTMLInputElement | null>(null)
+  // 同一帧内 blur 与 Enter 都可能触发提交：用一个标记保证只提交一次。
+  const submittedRef = useRef(false)
+
+  useEffect(() => {
+    if (creating) {
+      submittedRef.current = false
+      inputRef.current?.focus()
+    }
+  }, [creating])
+
+  const hasTags = useMemo(() => tabs.some((tab) => !tab.isAll), [tabs])
+
+  const submit = () => {
+    if (submittedRef.current) return
+    submittedRef.current = true
+    const name = draft.trim()
+    setDraft('')
+    setCreating(false)
+    if (!name) return
+    onCreate?.(name)
+  }
+
+  const cancel = () => {
+    submittedRef.current = true
+    setDraft('')
+    setCreating(false)
+  }
+
+  return (
+    <div className="flex flex-wrap items-center gap-2 border-b border-[var(--app-border)] pb-3">
+      <div className="flex flex-wrap items-center gap-1.5">
+        {tabs.map((tab) => {
+          const active = tab.id === selectedTagId
+          return (
+            <button
+              key={tab.id}
+              type="button"
+              onClick={() => onSelect(tab.id)}
+              aria-pressed={active}
+              className={`inline-flex items-center gap-1.5 rounded-xl border px-3 py-1.5 text-xs font-bold transition-colors ${
+                active
+                  ? 'border-brand-500/60 bg-brand-500/10 text-brand-600'
+                  : 'border-[var(--app-border)] bg-[var(--app-panel-soft)] text-[var(--app-subtle)] hover:border-brand-500/40 hover:text-[var(--app-text)]'
+              }`}
+              title={tab.isAll ? '显示全部媒体库' : `只看「${tab.name}」标签下的媒体库`}
+            >
+              {tab.isAll && <Layers size={13} />}
+              <span className="max-w-[8rem] truncate">{tab.name}</span>
+              <span className={`font-mono text-[10px] ${active ? 'text-brand-500' : 'text-[var(--app-muted)]'}`}>
+                {tab.count}
+              </span>
+            </button>
+          )
+        })}
+      </div>
+
+      {(showCreate || onManage) && (
+        <div className="flex flex-wrap items-center gap-1.5">
+          {showCreate && onCreate && (creating || !hasTags) && (
+            <div className="inline-flex items-center gap-1 rounded-xl border border-[var(--app-border)] bg-[var(--app-panel-soft)] px-2 py-1">
+              <input
+                ref={inputRef}
+                value={draft}
+                onChange={(event) => setDraft(event.target.value)}
+                onKeyDown={(event) => {
+                  if (event.key === 'Enter') {
+                    event.preventDefault()
+                    submit()
+                  }
+                  if (event.key === 'Escape') {
+                    event.preventDefault()
+                    setDraft('')
+                    setCreating(false)
+                  }
+                }}
+                onBlur={() => submit()}
+                maxLength={24}
+                placeholder="新标签名"
+                className="h-6 w-24 bg-transparent text-xs font-semibold text-[var(--app-text)] outline-none placeholder:text-[var(--app-muted)]"
+                title={`最多 24 个字，当前最多 ${MAX_LIBRARY_TAGS} 个标签`}
+              />
+              <button
+                type="button"
+                onMouseDown={(event) => event.preventDefault()}
+                onClick={submit}
+                disabled={busy || !draft.trim()}
+                className="rounded-lg p-1 text-brand-500 transition-colors hover:bg-[var(--app-hover)] disabled:opacity-40"
+                title="创建标签"
+              >
+                <Plus size={13} />
+              </button>
+              <button
+                type="button"
+                onMouseDown={(event) => event.preventDefault()}
+                onClick={cancel}
+                className="rounded-lg p-1 text-[var(--app-muted)] transition-colors hover:bg-[var(--app-hover)]"
+                title="取消"
+              >
+                <X size={13} />
+              </button>
+            </div>
+          )}
+
+          {showCreate && onCreate && !creating && hasTags && (
+            <button
+              type="button"
+              onClick={() => setCreating(true)}
+              disabled={busy || tabs.length - 1 >= MAX_LIBRARY_TAGS}
+              className="inline-flex items-center gap-1 rounded-xl border border-dashed border-[var(--app-border)] px-2.5 py-1.5 text-xs font-bold text-[var(--app-muted)] transition-colors hover:border-brand-500/50 hover:text-brand-500 disabled:opacity-40"
+              title="新建标签"
+            >
+              <Plus size={13} />
+              <span>新建标签</span>
+            </button>
+          )}
+
+          {onManage && (
+            <button
+              type="button"
+              onClick={onManage}
+              className="inline-flex items-center gap-1 rounded-xl border border-[var(--app-border)] bg-[var(--app-panel-soft)] px-2.5 py-1.5 text-xs font-bold text-[var(--app-subtle)] transition-colors hover:border-brand-500/40 hover:text-brand-500"
+              title="重命名 / 删除标签，调整标签下的媒体库"
+            >
+              <Settings2 size={13} />
+              <span>{manageLabel}</span>
+            </button>
+          )}
+        </div>
+      )}
+    </div>
+  )
+}

web/src/components/ManageLibraryTagsDialogView.tsx

@@ -0,0 +1,304 @@
+import { useEffect, useMemo, useState } from 'react'
+import { Check, Loader2, Pencil, Plus, Tag, Trash2, X } from 'lucide-react'
+import toast from 'react-hot-toast'
+
+import { confirmAction } from './confirmAction'
+import type { Library } from '../types'
+import { MAX_LIBRARY_TAGS, normalizeTagName, tagNameError, type LibraryTag } from '../utils/libraryTags'
+
+export type ManageLibraryTagsDialogProps = {
+  tags: LibraryTag[]
+  libraries: Library[]
+  saving: boolean
+  onCreate: (name: string) => Promise<string>
+  onRename: (from: string, to: string) => Promise<void>
+  onRemove: (name: string) => Promise<void>
+  onAssign: (libraryId: string, tagName: string) => Promise<void>
+  onClose: () => void
+}
+
+/**
+ * 标签管理对话框：左侧维护标签（新建 / 重命名 / 删除），右侧把每个媒体库归入
+ * 某个标签。一个媒体库同时只属于一个标签，未选择即为「未分类」。
+ */
+export function ManageLibraryTagsDialogView({
+  tags,
+  libraries,
+  saving,
+  onCreate,
+  onRename,
+  onRemove,
+  onAssign,
+  onClose,
+}: ManageLibraryTagsDialogProps) {
+  const [draftName, setDraftName] = useState('')
+  const [renaming, setRenaming] = useState('')
+  const [renameDraft, setRenameDraft] = useState('')
+  const [busyLibrary, setBusyLibrary] = useState('')
+
+  useEffect(() => {
+    const onKeyDown = (event: KeyboardEvent) => {
+      if (event.key === 'Escape') onClose()
+    }
+    window.addEventListener('keydown', onKeyDown)
+    return () => window.removeEventListener('keydown', onKeyDown)
+  }, [onClose])
+
+  const tagByLibrary = useMemo(() => {
+    const map = new Map<string, string>()
+    for (const tag of tags) {
+      for (const id of tag.library_ids) {
+        if (!map.has(id)) map.set(id, tag.name)
+      }
+    }
+    return map
+  }, [tags])
+
+  const handleCreate = async () => {
+    const error = tagNameError(draftName, tags)
+    if (error) {
+      toast.error(error)
+      return
+    }
+    if (tags.length >= MAX_LIBRARY_TAGS) {
+      toast.error(`最多 ${MAX_LIBRARY_TAGS} 个标签`)
+      return
+    }
+    const created = await onCreate(normalizeTagName(draftName))
+    if (created) {
+      setDraftName('')
+      toast.success(`标签「${created}」已创建`)
+    } else {
+      toast.error('标签创建失败')
+    }
+  }
+
+  const handleRename = async (from: string) => {
+    const error = tagNameError(renameDraft, tags, from)
+    if (error) {
+      toast.error(error)
+      return
+    }
+    await onRename(from, renameDraft)
+    setRenaming('')
+    setRenameDraft('')
+  }
+
+  const handleRemove = async (tag: LibraryTag) => {
+    const confirmed = await confirmAction({
+      title: '删除标签',
+      message: `确定删除标签「${tag.name}」？\n媒体库本身不会被删除，只会回到「未分类」。`,
+      confirmText: '删除',
+    })
+    if (!confirmed) return
+    await onRemove(tag.name)
+  }
+
+  const handleAssign = async (library: Library, tagName: string) => {
+    setBusyLibrary(library.id)
+    try {
+      await onAssign(library.id, tagName)
+    } finally {
+      setBusyLibrary('')
+    }
+  }
+
+  return (
+    <div
+      className="fixed inset-0 z-[100] flex items-center justify-center bg-black/35 p-2 backdrop-blur-sm sm:p-4"
+      onClick={onClose}
+    >
+      <div
+        role="dialog"
+        aria-modal="true"
+        className="flex h-[calc(100dvh-1rem)] w-full max-w-4xl flex-col overflow-hidden rounded-2xl border border-white/70 bg-[var(--app-panel)] shadow-2xl sm:h-[80vh] sm:rounded-3xl"
+        onClick={(event) => event.stopPropagation()}
+      >
+        <div className="flex items-center justify-between border-b border-[var(--app-border)] px-4 py-3 sm:px-6 sm:py-4">
+          <div className="flex items-center gap-2">
+            <Tag size={18} className="text-brand-500" />
+            <h3 className="font-display text-base font-bold text-[var(--app-text)] sm:text-lg">管理标签</h3>
+            {saving && <Loader2 size={14} className="animate-spin text-[var(--app-muted)]" />}
+          </div>
+          <button
+            type="button"
+            onClick={onClose}
+            className="rounded-xl p-1.5 text-[var(--app-muted)] transition hover:bg-[var(--app-hover)] hover:text-[var(--app-text)]"
+            title="关闭"
+          >
+            <X size={20} />
+          </button>
+        </div>
+
+        <div className="grid flex-1 grid-cols-1 gap-4 overflow-hidden p-3 sm:p-6 md:grid-cols-[minmax(0,1fr)_minmax(0,1.3fr)]">
+          <section className="flex min-h-0 flex-col gap-3">
+            <h4 className="text-xs font-bold uppercase tracking-widest text-[var(--app-muted)]">标签</h4>
+            <div className="flex items-center gap-1.5">
+              <input
+                value={draftName}
+                onChange={(event) => setDraftName(event.target.value)}
+                onKeyDown={(event) => {
+                  if (event.key === 'Enter') {
+                    event.preventDefault()
+                    void handleCreate()
+                  }
+                }}
+                maxLength={24}
+                placeholder="新建标签名"
+                className="input-base !py-2 text-sm"
+              />
+              <button
+                type="button"
+                onClick={() => void handleCreate()}
+                disabled={saving || !draftName.trim()}
+                className="btn-outline shrink-0 !px-3 !py-2 text-xs"
+                title="创建标签"
+              >
+                <Plus size={14} />
+                新建
+              </button>
+            </div>
+
+            <div className="min-h-0 flex-1 space-y-1.5 overflow-y-auto pr-1">
+              {tags.length === 0 ? (
+                <p className="rounded-xl border border-dashed border-[var(--app-border)] px-3 py-6 text-center text-xs text-[var(--app-muted)]">
+                  还没有标签。先创建一个，再把媒体库归入其中。
+                </p>
+              ) : (
+                tags.map((tag) => (
+                  <div
+                    key={tag.name}
+                    className="flex items-center gap-2 rounded-xl border border-[var(--app-border)] bg-[var(--app-panel-soft)] px-2.5 py-2"
+                  >
+                    {renaming === tag.name ? (
+                      <>
+                        <input
+                          autoFocus
+                          value={renameDraft}
+                          onChange={(event) => setRenameDraft(event.target.value)}
+                          onKeyDown={(event) => {
+                            if (event.key === 'Enter') {
+                              event.preventDefault()
+                              void handleRename(tag.name)
+                            }
+                            if (event.key === 'Escape') {
+                              setRenaming('')
+                              setRenameDraft('')
+                            }
+                          }}
+                          maxLength={24}
+                          className="min-w-0 flex-1 rounded-lg border border-[var(--app-border)] bg-[var(--app-panel)] px-2 py-1 text-xs font-semibold text-[var(--app-text)] outline-none focus:border-brand-500"
+                        />
+                        <button
+                          type="button"
+                          onClick={() => void handleRename(tag.name)}
+                          className="rounded-lg p-1 text-brand-500 transition-colors hover:bg-[var(--app-hover)]"
+                          title="保存名称"
+                        >
+                          <Check size={14} />
+                        </button>
+                        <button
+                          type="button"
+                          onClick={() => {
+                            setRenaming('')
+                            setRenameDraft('')
+                          }}
+                          className="rounded-lg p-1 text-[var(--app-muted)] transition-colors hover:bg-[var(--app-hover)]"
+                          title="取消"
+                        >
+                          <X size={14} />
+                        </button>
+                      </>
+                    ) : (
+                      <>
+                        <span
+                          className="min-w-0 flex-1 truncate text-sm font-bold text-[var(--app-text)]"
+                          title={tag.name}
+                        >
+                          {tag.name}
+                        </span>
+                        <span className="shrink-0 font-mono text-[10px] text-[var(--app-muted)]">
+                          {tag.library_ids.length}
+                        </span>
+                        <button
+                          type="button"
+                          onClick={() => {
+                            setRenaming(tag.name)
+                            setRenameDraft(tag.name)
+                          }}
+                          className="rounded-lg p-1 text-[var(--app-muted)] transition-colors hover:bg-[var(--app-hover)] hover:text-brand-500"
+                          title="重命名"
+                        >
+                          <Pencil size={13} />
+                        </button>
+                        <button
+                          type="button"
+                          onClick={() => void handleRemove(tag)}
+                          className="rounded-lg p-1 text-[var(--app-muted)] transition-colors hover:bg-[var(--app-hover)] hover:text-red-500"
+                          title="删除标签"
+                        >
+                          <Trash2 size={13} />
+                        </button>
+                      </>
+                    )}
+                  </div>
+                ))
+              )}
+            </div>
+          </section>
+
+          <section className="flex min-h-0 flex-col gap-3 border-t border-[var(--app-border)] pt-4 md:border-l md:border-t-0 md:pl-4 md:pt-0">
+            <h4 className="text-xs font-bold uppercase tracking-widest text-[var(--app-muted)]">
+              媒体库归类（{libraries.length}）
+            </h4>
+            <div className="min-h-0 flex-1 space-y-1.5 overflow-y-auto pr-1">
+              {libraries.length === 0 ? (
+                <p className="rounded-xl border border-dashed border-[var(--app-border)] px-3 py-6 text-center text-xs text-[var(--app-muted)]">
+                  暂无可归类的媒体库。
+                </p>
+              ) : (
+                libraries.map((library) => (
+                  <div
+                    key={library.id}
+                    className="flex items-center gap-2 rounded-xl border border-[var(--app-border)] bg-[var(--app-panel-soft)] px-2.5 py-2"
+                  >
+                    <span
+                      className="min-w-0 flex-1 truncate text-xs font-semibold text-[var(--app-text)]"
+                      title={library.name}
+                    >
+                      {library.name}
+                    </span>
+                    {busyLibrary === library.id && (
+                      <Loader2 size={13} className="shrink-0 animate-spin text-[var(--app-muted)]" />
+                    )}
+                    <select
+                      value={tagByLibrary.get(library.id) ?? ''}
+                      disabled={saving || busyLibrary === library.id}
+                      onChange={(event) => void handleAssign(library, event.target.value)}
+                      className="input-base h-8 w-32 shrink-0 !py-0 text-xs"
+                      title="选择该媒体库所属标签"
+                    >
+                      <option value="">未分类</option>
+                      {tags.map((tag) => (
+                        <option key={tag.name} value={tag.name}>
+                          {tag.name}
+                        </option>
+                      ))}
+                    </select>
+                  </div>
+                ))
+              )}
+            </div>
+          </section>
+        </div>
+
+        <div className="flex items-center justify-between gap-3 border-t border-[var(--app-border)] px-4 py-3 sm:px-6">
+          <span className="text-xs text-[var(--app-muted)]">标签按用户保存；一个媒体库同时只属于一个标签。</span>
+          <button type="button" onClick={onClose} className="btn-outline !px-4 !py-2 text-sm">
+            完成
+          </button>
+        </div>
+      </div>
+    </div>
+  )
+}

web/src/components/manageLibraryTagsDialog.tsx

@@ -0,0 +1,27 @@
+import { createRoot } from 'react-dom/client'
+
+import {
+  ManageLibraryTagsDialogView,
+  type ManageLibraryTagsDialogProps,
+} from './ManageLibraryTagsDialogView'
+
+export type OpenManageLibraryTagsDialogOptions = Omit<ManageLibraryTagsDialogProps, 'onClose'>
+
+/** 以独立根节点打开标签管理对话框，关闭后 resolve。 */
+export function openManageLibraryTagsDialog(
+  options: OpenManageLibraryTagsDialogOptions,
+): Promise<void> {
+  return new Promise((resolve) => {
+    const host = document.createElement('div')
+    document.body.appendChild(host)
+    const root = createRoot(host)
+
+    const close = () => {
+      root.unmount()
+      host.remove()
+      resolve()
+    }
+
+    root.render(<ManageLibraryTagsDialogView {...options} onClose={close} />)
+  })
+}