forked from EduCraft/curriculum-project-hub
ymy
528 lines
18 KiB
Svelte
528 lines
18 KiB
Svelte
<script lang="ts">
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/**
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* 老师端网盘式文件库浏览器(仅 /app;管理后台沿用树状 LibraryView)。
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*
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* 下钻导航:双击文件夹/项目进入,面包屑 + 返回跳级;项目内文件同样网格化,
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* 双击进 FileEditor 预览。管理动作全走右键菜单,按节点 role 动态显隐:
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* 打开 / 新建子文件夹(EDIT+,仅 FOLDER)/ 重命名(MANAGE)/ 授权管理(MANAGE,
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* 宽 Modal 复用 GrantsPanel)/ 详情(复用 OverviewPanel)/ 删除(MANAGE)。
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* 文件菜单:打开预览 / 下载 / 删除(EDIT+)。
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*/
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import { onMount } from "svelte";
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import { api } from "./api.js";
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import { me, toastErr, toastOk } from "./stores.js";
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import { selectedFilePath, clearSelectedFile } from "./browser.js";
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import { ROLE_LABEL } from "./labels.js";
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import type { FileEntry, NodeChild, NodeDetail, Role } from "./types.js";
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import Icon from "./Icon.svelte";
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import Modal from "./Modal.svelte";
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import ContextMenu, { type MenuItem } from "./ContextMenu.svelte";
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import GridCard from "./GridCard.svelte";
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import FileEditor from "./FileEditor.svelte";
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import GrantsPanel from "./GrantsPanel.svelte";
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import OverviewPanel from "./OverviewPanel.svelte";
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const RANK: Record<Role, number> = { VIEW: 1, EDIT: 2, MANAGE: 3 };
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const atLeast = (role: Role, min: Role): boolean => RANK[role] >= RANK[min];
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type View = "nodes" | "files";
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type StackItem = Pick<NodeChild, "id" | "name" | "kind" | "role">;
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let view = $state<View>("nodes");
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/** 下钻栈(均为 FOLDER;根层为空栈)。 */
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let stack = $state<StackItem[]>([]);
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let children = $state<NodeChild[] | null>(null);
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let nodesError = $state<string | null>(null);
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/** 文件视图:当前项目详情 + 文件列表。 */
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let projectNode = $state<NodeDetail | null>(null);
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let files = $state<FileEntry[] | null>(null);
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let filesError = $state<string | null>(null);
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let selected = $state<string | null>(null);
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let menu = $state<{ x: number; y: number; items: readonly MenuItem[] } | null>(null);
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// 弹窗:create(新建文件夹/项目)/ rename / grants / detail / newFile
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let modal = $state<"create" | "rename" | "grants" | "detail" | "newFile" | null>(null);
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let createKind = $state<"FOLDER" | "PROJECT">("FOLDER");
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let createParentId = $state<string | null>(null);
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let formName = $state("");
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let formDesc = $state("");
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let renameTarget = $state<StackItem | null>(null);
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let detailNode = $state<NodeDetail | null>(null);
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let newPath = $state("");
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let newContent = $state("");
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let saving = $state(false);
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const errText = (e: unknown): string => (e instanceof Error ? e.message : String(e));
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const currentFolder = $derived(stack.length === 0 ? null : stack[stack.length - 1]!);
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const canCreateHere = $derived(
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currentFolder === null ? ($me?.isWebsiteAdmin ?? false) : atLeast(currentFolder.role, "EDIT"),
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);
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const projectCanEdit = $derived(projectNode !== null && projectNode.role !== "VIEW");
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/* ------------------------------------------------------------ 数据加载 */
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async function loadChildren(): Promise<void> {
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children = null;
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nodesError = null;
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try {
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const parent = currentFolder;
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const url = parent === null
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? "/database/api/nodes"
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: `/database/api/nodes?parentId=${encodeURIComponent(parent.id)}`;
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const r = await api<{ nodes: NodeChild[] }>(url);
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children = r.nodes;
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} catch (e) {
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nodesError = errText(e);
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}
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}
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async function loadFiles(): Promise<void> {
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if (projectNode === null) return;
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files = null;
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filesError = null;
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try {
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const r = await api<{ files: FileEntry[] }>(`/database/api/projects/${projectNode.id}/files`);
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files = r.files;
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} catch (e) {
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filesError = errText(e);
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}
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}
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async function fetchDetail(id: string): Promise<NodeDetail> {
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const r = await api<{ node: NodeDetail }>(`/database/api/nodes/${id}`);
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return r.node;
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}
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onMount(loadChildren);
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function refresh(): void {
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selected = null;
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menu = null;
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if (view === "files") void loadFiles();
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else void loadChildren();
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}
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/* ------------------------------------------------------------ 导航 */
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function openNode(n: StackItem): void {
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selected = null;
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if (n.kind === "FOLDER") {
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stack = [...stack, n];
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void loadChildren();
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} else {
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void (async () => {
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try {
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projectNode = await fetchDetail(n.id);
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view = "files";
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await loadFiles();
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} catch (e) {
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toastErr(errText(e));
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}
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})();
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}
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}
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function goRoot(): void {
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if (view === "files") {
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view = "nodes";
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projectNode = null;
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clearSelectedFile();
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return;
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}
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stack = [];
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void loadChildren();
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}
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function goUp(): void {
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if (view === "files") {
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goRoot();
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return;
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}
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if (stack.length === 0) return;
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stack = stack.slice(0, -1);
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void loadChildren();
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}
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function goToDepth(depth: number): void {
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if (view === "files") {
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view = "nodes";
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projectNode = null;
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clearSelectedFile();
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}
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stack = stack.slice(0, depth);
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void loadChildren();
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}
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/* ------------------------------------------------------------ 节点操作 */
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function openCreate(kind: "FOLDER" | "PROJECT", parentId: string | null): void {
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createKind = kind;
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createParentId = parentId;
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formName = "";
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formDesc = "";
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modal = "create";
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}
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async function submitCreate(): Promise<void> {
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const name = formName.trim();
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if (name === "") return;
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saving = true;
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try {
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await api("/database/api/nodes", {
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method: "POST",
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body: {
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parentId: createParentId,
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kind: createKind,
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name,
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...(formDesc.trim() !== "" ? { description: formDesc.trim() } : {}),
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},
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});
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toastOk("已创建");
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modal = null;
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refresh();
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} catch (e) {
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toastErr(errText(e));
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} finally {
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saving = false;
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}
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}
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function openRename(n: StackItem): void {
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renameTarget = n;
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formName = n.name;
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modal = "rename";
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}
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async function submitRename(): Promise<void> {
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if (renameTarget === null) return;
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const name = formName.trim();
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if (name === "" || name === renameTarget.name) return;
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saving = true;
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try {
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await api(`/database/api/nodes/${renameTarget.id}`, { method: "PATCH", body: { name } });
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toastOk("已重命名");
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modal = null;
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refresh();
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} catch (e) {
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toastErr(errText(e));
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} finally {
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saving = false;
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}
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}
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async function removeNode(n: StackItem): Promise<void> {
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if (!confirm(`删除「${n.name}」?软删除后不可见。`)) return;
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try {
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await api(`/database/api/nodes/${n.id}`, { method: "DELETE" });
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toastOk("已删除");
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refresh();
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} catch (e) {
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toastErr(errText(e));
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}
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}
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async function openGrants(n: StackItem): Promise<void> {
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try {
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detailNode = await fetchDetail(n.id);
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modal = "grants";
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} catch (e) {
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toastErr(errText(e));
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}
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}
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async function openDetail(n: StackItem): Promise<void> {
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try {
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detailNode = await fetchDetail(n.id);
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modal = "detail";
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} catch (e) {
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toastErr(errText(e));
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}
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}
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/* ------------------------------------------------------------ 文件操作 */
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function previewFile(f: FileEntry): void {
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selectedFilePath.set(f.path);
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}
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async function submitNewFile(): Promise<void> {
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if (projectNode === null) return;
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const path = newPath.trim();
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if (path === "") return;
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saving = true;
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try {
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await api(`/database/api/projects/${projectNode.id}/file`, {
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method: "PUT",
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body: { path, content: newContent },
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});
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toastOk("已创建");
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modal = null;
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newPath = ""; newContent = "";
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await loadFiles();
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} catch (e) {
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toastErr(errText(e));
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} finally {
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saving = false;
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}
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}
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async function removeFile(f: FileEntry): Promise<void> {
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if (projectNode === null || !confirm(`删除文件 ${f.path}?`)) return;
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try {
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const cur = await api<{ version: string }>(
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`/database/api/projects/${projectNode.id}/file?path=${encodeURIComponent(f.path)}`,
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);
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await api(`/database/api/projects/${projectNode.id}/file?path=${encodeURIComponent(f.path)}`, {
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method: "DELETE",
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body: { baseVersion: cur.version },
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});
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toastOk("已删除");
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if ($selectedFilePath === f.path) clearSelectedFile();
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await loadFiles();
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} catch (e) {
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toastErr(errText(e));
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}
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}
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/* ------------------------------------------------------------ 右键菜单 */
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function nodeMenuItems(n: StackItem): MenuItem[] {
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const items: MenuItem[] = [{ label: "打开", icon: "chevron", onclick: () => openNode(n) }];
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if (n.kind === "FOLDER" && atLeast(n.role, "EDIT")) {
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items.push({ label: "新建子文件夹", icon: "plus", onclick: () => openCreate("FOLDER", n.id) });
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}
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if (n.role === "MANAGE") {
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items.push(
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{ label: "重命名", icon: "pencil", onclick: () => openRename(n) },
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{ label: "授权管理", icon: "shield", onclick: () => void openGrants(n) },
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);
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}
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items.push({ label: "详情", icon: "info", onclick: () => void openDetail(n) });
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if (n.role === "MANAGE") {
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items.push({ label: "删除", icon: "trash", danger: true, onclick: () => void removeNode(n) });
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}
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return items;
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}
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function fileMenuItems(f: FileEntry): MenuItem[] {
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const items: MenuItem[] = [
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{ label: "打开预览", icon: "chevron", onclick: () => previewFile(f) },
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{
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label: "下载",
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icon: "download",
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onclick: () => {
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if (projectNode === null) return;
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const a = document.createElement("a");
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a.href = `/database/api/projects/${projectNode.id}/file/raw?path=${encodeURIComponent(f.path)}`;
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a.download = "";
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a.click();
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},
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},
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];
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if (projectCanEdit) {
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items.push({ label: "删除", icon: "trash", danger: true, onclick: () => void removeFile(f) });
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}
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return items;
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}
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function bgMenuItems(): MenuItem[] {
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const items: MenuItem[] = [];
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if (view === "nodes" && canCreateHere) {
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items.push(
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{ label: "新建文件夹", icon: "plus", onclick: () => openCreate("FOLDER", currentFolder?.id ?? null) },
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{ label: "新建项目", icon: "plus", onclick: () => openCreate("PROJECT", currentFolder?.id ?? null) },
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);
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}
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if (view === "files" && projectCanEdit) {
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items.push({ label: "新建文件", icon: "plus", onclick: () => (modal = "newFile") });
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}
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items.push({ label: "刷新", icon: "refresh", onclick: refresh });
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return items;
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}
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</script>
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<div class="flex min-h-0 flex-1 flex-col">
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<!-- 顶栏:返回 + 面包屑 + 动作 + 身份 -->
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<header class="flex shrink-0 items-center gap-2 border-b border-line-soft bg-panel px-5 py-3">
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{#if view === "files" || stack.length > 0}
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<button class="btn btn-sm" onclick={goUp} title="返回上级">
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<Icon name="arrowLeft" size={13} /> 返回
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</button>
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{/if}
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<nav class="flex min-w-0 flex-1 items-center gap-1 text-[13px]">
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<button
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class="shrink-0 {view === 'nodes' && stack.length === 0 ? 'font-semibold text-ink' : 'text-ink-3 hover:text-ink'}"
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onclick={goRoot}
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>文件库</button>
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{#each stack as n, i (n.id)}
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<span class="text-line">/</span>
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<button
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class="truncate {view === 'nodes' && i === stack.length - 1
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? 'font-semibold text-ink'
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: 'text-ink-3 hover:text-ink'}"
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onclick={() => goToDepth(i + 1)}
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>{n.name}</button>
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{/each}
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{#if view === "files" && projectNode}
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<span class="text-line">/</span>
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<span class="truncate font-semibold text-ink">{projectNode.name}</span>
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{/if}
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</nav>
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{#if view === "nodes" && canCreateHere}
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<button class="btn btn-sm" onclick={() => openCreate("FOLDER", currentFolder?.id ?? null)}>
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<Icon name="plus" size={13} /> 新建文件夹
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</button>
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<button class="btn btn-sm" onclick={() => openCreate("PROJECT", currentFolder?.id ?? null)}>
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<Icon name="plus" size={13} /> 新建项目
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</button>
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{/if}
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{#if view === "files" && projectCanEdit}
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<button class="btn btn-sm" onclick={() => (modal = "newFile")}>
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<Icon name="plus" size={13} /> 新建文件
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</button>
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{/if}
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<button class="btn btn-sm" onclick={refresh} title="刷新"><Icon name="refresh" size={13} /></button>
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</header>
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<!-- 主体:网格 + 文件预览栏 -->
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<div class="flex min-h-0 flex-1">
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<main
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class="flex-1 overflow-y-auto px-6 py-5"
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role="presentation"
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oncontextmenu={(e) => { e.preventDefault(); menu = { x: e.clientX, y: e.clientY, items: bgMenuItems() }; }}
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>
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{#if view === "nodes"}
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{#if nodesError !== null}
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<div class="py-10 text-center text-[13px] text-danger">{nodesError}</div>
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{:else if children === null}
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<div class="quiet py-10 text-center">加载中…</div>
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{:else if children.length === 0}
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<div class="quiet py-10 text-center">
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{currentFolder === null ? "空文件库" : "空文件夹"}{canCreateHere ? " · 右键或点上方按钮新建" : ""}
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</div>
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{:else}
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<div class="grid grid-cols-[repeat(auto-fill,minmax(132px,1fr))] gap-x-2 gap-y-4">
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{#each children as n (n.id)}
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<GridCard
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kind={n.kind}
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name={n.name}
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meta={ROLE_LABEL[n.role]}
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selected={selected === n.id}
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onselect={() => (selected = n.id)}
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onopen={() => openNode(n)}
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oncontextmenu={(x, y) => (menu = { x, y, items: nodeMenuItems(n) })}
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/>
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{/each}
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</div>
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{/if}
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{:else}
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{#if filesError !== null}
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<div class="py-10 text-center text-[13px] text-danger">{filesError}</div>
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{:else if files === null}
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<div class="quiet py-10 text-center">加载中…</div>
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{:else if files.length === 0}
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<div class="quiet py-10 text-center">空仓库{projectCanEdit ? " · 右键或点上方按钮新建文件" : ""}</div>
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{:else}
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<div class="grid grid-cols-[repeat(auto-fill,minmax(132px,1fr))] gap-x-2 gap-y-4">
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{#each files as f (f.path)}
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<GridCard
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kind="FILE"
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name={f.path}
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meta="{f.size} B"
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selected={selected === f.path}
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onselect={() => (selected = f.path)}
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onopen={() => previewFile(f)}
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oncontextmenu={(x, y) => (menu = { x, y, items: fileMenuItems(f) })}
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/>
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{/each}
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</div>
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{/if}
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{/if}
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</main>
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{#if view === "files" && $selectedFilePath && projectNode}
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<section class="flex w-[46%] min-w-[420px] shrink-0 flex-col overflow-y-auto border-l border-line-soft bg-bg p-4">
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<FileEditor
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projectId={projectNode.id}
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path={$selectedFilePath}
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role={projectNode.role}
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onchanged={() => void loadFiles()}
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onclose={clearSelectedFile}
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/>
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</section>
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{/if}
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</div>
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</div>
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{#if menu}
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<ContextMenu x={menu.x} y={menu.y} items={menu.items} onclose={() => (menu = null)} />
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{/if}
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{#if modal === "create"}
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<Modal title={createKind === "FOLDER" ? "新建文件夹" : "新建项目"} onclose={() => (modal = null)}>
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<div class="form-row">
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<label class="form-label" for="gc-name">名称</label>
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<input id="gc-name" class="input" bind:value={formName} placeholder={createKind === "FOLDER" ? "例如:物理" : "例如:微积分基础"} />
|
|
</div>
|
|
<div class="form-row">
|
|
<label class="form-label" for="gc-desc">简介(可选)</label>
|
|
<textarea id="gc-desc" rows="3" class="textarea" bind:value={formDesc} placeholder="简要说明用途…"></textarea>
|
|
</div>
|
|
<div class="mt-4 flex justify-end gap-2">
|
|
<button class="btn" onclick={() => (modal = null)}>取消</button>
|
|
<button class="btn btn-primary disabled:opacity-50" onclick={submitCreate} disabled={saving}>
|
|
{saving ? "创建中…" : "创建"}
|
|
</button>
|
|
</div>
|
|
</Modal>
|
|
{/if}
|
|
|
|
{#if modal === "rename" && renameTarget}
|
|
<Modal title="重命名" onclose={() => (modal = null)}>
|
|
<div class="form-row">
|
|
<label class="form-label" for="gr-name">新名称</label>
|
|
<input id="gr-name" class="input" bind:value={formName} />
|
|
</div>
|
|
<div class="mt-4 flex justify-end gap-2">
|
|
<button class="btn" onclick={() => (modal = null)}>取消</button>
|
|
<button class="btn btn-primary disabled:opacity-50" onclick={submitRename} disabled={saving}>
|
|
{saving ? "保存中…" : "保存"}
|
|
</button>
|
|
</div>
|
|
</Modal>
|
|
{/if}
|
|
|
|
{#if modal === "grants" && detailNode}
|
|
<Modal maxW={880} title="授权管理 · {detailNode.name}" onclose={() => (modal = null)}>
|
|
<GrantsPanel node={detailNode} />
|
|
</Modal>
|
|
{/if}
|
|
|
|
{#if modal === "detail" && detailNode}
|
|
<Modal maxW={680} title="详情 · {detailNode.name}" onclose={() => (modal = null)}>
|
|
<OverviewPanel node={detailNode} ondeleted={() => { modal = null; refresh(); }} />
|
|
</Modal>
|
|
{/if}
|
|
|
|
{#if modal === "newFile"}
|
|
<Modal title="新建文件" onclose={() => (modal = null)}>
|
|
<div class="form-row">
|
|
<label class="form-label" for="gf-path">路径</label>
|
|
<input id="gf-path" class="input font-mono" bind:value={newPath} placeholder="讲义/第一章.md" />
|
|
</div>
|
|
<div class="form-row">
|
|
<label class="form-label" for="gf-content">内容</label>
|
|
<textarea id="gf-content" rows="8" class="textarea" bind:value={newContent} placeholder="内容…"></textarea>
|
|
</div>
|
|
<div class="mt-4 flex justify-end gap-2">
|
|
<button class="btn" onclick={() => (modal = null)}>取消</button>
|
|
<button class="btn btn-primary disabled:opacity-50" onclick={submitNewFile} disabled={saving}>
|
|
{saving ? "创建中…" : "创建"}
|
|
</button>
|
|
</div>
|
|
</Modal>
|
|
{/if}
|