yarnom
f0b50d13ea
Add Go/Postgres admin APIs, Angular admin UI, manual build flow, asset uploads, markdown import/export, configurable slug generation, and the Yar reading theme. Exclude local docs and generated development artifacts from version control.
321 lines
8.3 KiB
JavaScript
321 lines
8.3 KiB
JavaScript
const state = {
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user: null,
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posts: [],
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currentPost: null,
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};
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const el = {
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loginView: document.querySelector("#loginView"),
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appView: document.querySelector("#appView"),
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loginForm: document.querySelector("#loginForm"),
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loginUsername: document.querySelector("#loginUsername"),
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loginPassword: document.querySelector("#loginPassword"),
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loginMessage: document.querySelector("#loginMessage"),
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userBadge: document.querySelector("#userBadge"),
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logoutButton: document.querySelector("#logoutButton"),
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newPostButton: document.querySelector("#newPostButton"),
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statusFilter: document.querySelector("#statusFilter"),
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postList: document.querySelector("#postList"),
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postForm: document.querySelector("#postForm"),
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editorMode: document.querySelector("#editorMode"),
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editorTitle: document.querySelector("#editorTitle"),
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titleInput: document.querySelector("#titleInput"),
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slugInput: document.querySelector("#slugInput"),
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statusInput: document.querySelector("#statusInput"),
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coverInput: document.querySelector("#coverInput"),
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tagsInput: document.querySelector("#tagsInput"),
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summaryInput: document.querySelector("#summaryInput"),
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bodyInput: document.querySelector("#bodyInput"),
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publishButton: document.querySelector("#publishButton"),
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editorMessage: document.querySelector("#editorMessage"),
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};
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async function api(path, options = {}) {
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const response = await fetch(`/api/admin${path}`, {
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credentials: "include",
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headers: {
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"Content-Type": "application/json",
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...(options.headers ?? {}),
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},
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...options,
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});
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if (response.status === 204) {
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return null;
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}
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const text = await response.text();
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const data = text ? JSON.parse(text) : {};
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if (!response.ok) {
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throw new Error(data.error ?? `HTTP ${response.status}`);
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}
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return data;
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}
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function showLogin() {
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el.loginView.hidden = false;
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el.appView.hidden = true;
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el.loginPassword.focus();
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}
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function showApp() {
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el.loginView.hidden = true;
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el.appView.hidden = false;
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el.userBadge.textContent = state.user?.username ?? "";
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}
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async function bootstrap() {
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try {
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const data = await api("/me");
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state.user = data.user;
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showApp();
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await loadPosts();
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resetEditor();
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} catch {
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showLogin();
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}
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}
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async function loadPosts() {
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const status = el.statusFilter.value;
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const query = status ? `?status=${encodeURIComponent(status)}` : "";
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const data = await api(`/posts${query}`);
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state.posts = data.posts ?? [];
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renderPostList();
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}
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function renderPostList() {
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el.postList.innerHTML = "";
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if (state.posts.length === 0) {
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const empty = document.createElement("p");
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empty.className = "message";
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empty.textContent = "暂无文章";
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el.postList.append(empty);
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return;
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}
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for (const post of state.posts) {
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const button = document.createElement("button");
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button.type = "button";
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button.className = "post-item";
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if (state.currentPost?.id === post.id) {
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button.classList.add("active");
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}
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button.innerHTML = `
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<span class="post-item-title"></span>
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<span class="post-item-meta"></span>
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`;
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button.querySelector(".post-item-title").textContent = post.title || "未命名";
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button.querySelector(".post-item-meta").textContent = `${statusText(post.status)} / ${formatDate(post.updatedAt)}`;
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button.addEventListener("click", () => selectPost(post.id));
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el.postList.append(button);
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}
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}
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async function selectPost(id) {
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const data = await api(`/posts/${id}`);
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state.currentPost = data.post;
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fillEditor(data.post);
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renderPostList();
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}
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function resetEditor() {
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state.currentPost = null;
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el.editorMode.textContent = "新文章";
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el.editorTitle.textContent = "开始写作";
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el.postForm.reset();
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el.statusInput.value = "draft";
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el.editorMessage.textContent = "";
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renderPostList();
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}
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function fillEditor(post) {
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el.editorMode.textContent = `版本 ${post.version}`;
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el.editorTitle.textContent = post.title || "未命名";
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el.titleInput.value = post.title ?? "";
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el.slugInput.value = post.slug ?? "";
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el.statusInput.value = post.status ?? "draft";
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el.coverInput.value = post.cover ?? "";
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el.tagsInput.value = (post.tags ?? []).join(", ");
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el.summaryInput.value = post.summary ?? "";
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el.bodyInput.value = post.bodyMarkdown ?? "";
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el.editorMessage.textContent = "";
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}
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function readPostInput() {
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return {
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title: el.titleInput.value.trim(),
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slug: el.slugInput.value.trim(),
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status: el.statusInput.value,
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cover: el.coverInput.value.trim(),
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tags: parseTags(el.tagsInput.value),
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summary: el.summaryInput.value.trim(),
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bodyMarkdown: el.bodyInput.value,
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slugSource: "manual",
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slugLocked: true,
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};
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}
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async function savePost() {
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const input = readPostInput();
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const path = state.currentPost ? `/posts/${state.currentPost.id}` : "/posts";
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const method = state.currentPost ? "PUT" : "POST";
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const data = await api(path, {
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method,
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body: JSON.stringify(input),
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});
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state.currentPost = data.post;
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fillEditor(data.post);
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await loadPosts();
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el.editorMessage.textContent = "已保存";
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}
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async function publishPost() {
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if (!state.currentPost) {
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await savePost();
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}
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const data = await api(`/posts/${state.currentPost.id}/publish`, { method: "POST" });
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state.currentPost = data.post;
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fillEditor(data.post);
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await loadPosts();
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el.editorMessage.textContent = "已开始构建";
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if (data.buildJob?.id) {
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pollBuildJob(data.buildJob.id);
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}
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}
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async function pollBuildJob(id) {
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for (;;) {
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await wait(1400);
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const data = await api(`/build-jobs/${id}`);
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const job = data.buildJob;
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el.editorMessage.textContent = `构建状态：${buildStatusText(job.status)}`;
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if (["success", "failed", "cancelled"].includes(job.status)) {
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if (job.error) {
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el.editorMessage.textContent = `构建失败：${job.error}`;
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}
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return;
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}
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}
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}
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function wait(ms) {
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return new Promise((resolve) => setTimeout(resolve, ms));
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}
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function statusText(status) {
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return {
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draft: "草稿",
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published: "已发布",
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archived: "归档",
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deleted: "已删除",
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}[status] ?? status;
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}
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function buildStatusText(status) {
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return {
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queued: "等待中",
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running: "构建中",
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success: "成功",
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failed: "失败",
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cancelled: "已取消",
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}[status] ?? status;
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}
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function formatDate(value) {
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if (!value) {
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return "无时间";
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}
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return new Intl.DateTimeFormat("zh-CN", {
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year: "numeric",
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month: "2-digit",
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day: "2-digit",
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hour: "2-digit",
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minute: "2-digit",
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}).format(new Date(value));
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}
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function slugify(value) {
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return value
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.trim()
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.toLowerCase()
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.replace(/[\s_]+/g, "-")
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.replace(/[^a-z0-9\u4e00-\u9fa5-]+/g, "")
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.replace(/-+/g, "-")
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.replace(/^-|-$/g, "");
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}
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function parseTags(value) {
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const seen = new Set();
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return value
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.split(/[,，]/)
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.map((tag) => tag.trim())
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.filter((tag) => {
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const key = tag.toLowerCase();
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if (!tag || seen.has(key)) {
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return false;
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}
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seen.add(key);
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return true;
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});
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}
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el.loginForm.addEventListener("submit", async (event) => {
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event.preventDefault();
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el.loginMessage.textContent = "";
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try {
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const data = await api("/login", {
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method: "POST",
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body: JSON.stringify({
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username: el.loginUsername.value.trim(),
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password: el.loginPassword.value,
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}),
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});
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state.user = data.user;
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showApp();
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await loadPosts();
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resetEditor();
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} catch (error) {
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el.loginMessage.textContent = error.message;
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}
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});
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el.logoutButton.addEventListener("click", async () => {
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await api("/logout", { method: "POST" });
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state.user = null;
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state.posts = [];
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state.currentPost = null;
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showLogin();
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});
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el.newPostButton.addEventListener("click", resetEditor);
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el.statusFilter.addEventListener("change", loadPosts);
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el.titleInput.addEventListener("input", () => {
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if (!state.currentPost && !el.slugInput.value.trim()) {
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el.slugInput.value = slugify(el.titleInput.value);
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}
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});
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el.postForm.addEventListener("submit", async (event) => {
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event.preventDefault();
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try {
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await savePost();
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} catch (error) {
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el.editorMessage.textContent = error.message;
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}
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});
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el.publishButton.addEventListener("click", async () => {
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try {
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await publishPost();
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} catch (error) {
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el.editorMessage.textContent = error.message;
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}
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});
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bootstrap();
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