Initial commit

1 files changed, 92 insertions, 0 deletions

diff --git a/app/directory.mjs b/app/directory.mjs
new file mode 100644
index 0000000..8c0a36e
--- /dev/null
+++ b/app/directory.mjs
@@ -0,0 +1,92 @@
+'use strict';
+
+import { PAGES_DIR } from './constants.mjs';
+import { parse } from './wikiparser.mjs';
+import { readFileSync, readdirSync } from 'fs';
+
+const pages = {};
+const metadata = {};
+
+const PURGE_COOLDOWN_MIN = 10;
+
+export function pageFor(path) {
+    path = path.replace(/[^a-z0-9]/gi, '_').toLowerCase();
+    let page = pages[path];
+    if (!page) {
+        return undefined;
+    }
+
+    if (!page.html) {
+        buildPage(path);
+        return pages[path];
+    }
+
+    return page;
+}
+
+export function buildPage(path) {
+    let data = readFileSync(`${PAGES_DIR}/${path}.wiki`, 'utf-8'); 
+    let result = parse(data);
+    let title = result.metadata.displayTitle ?? 'Unnamed page';
+    let content = `<h1>${title}</h1>${result.html}`;
+
+    let page = {
+        html: content,
+        buildTime: result.metadata.buildTime,
+        hidden: result.metadata.hidden,
+        displayTitle: title
+    };
+    pages[path] = page;
+}
+
+export function rebuild() {
+    for (var page in pages) {
+        delete pages[page];
+    }
+
+    readdirSync(PAGES_DIR).forEach(file => {
+        if (!file.endsWith('.wiki')) {
+            return;
+        }
+        file = file.replace('.wiki', '');
+        buildPage(file);
+    });
+    metadata.fileTreeBuildTime = new Date();
+}
+
+export function exists(path) {
+    return !!pages[path];
+}
+
+export function rawDataFor(path) {
+    return pages[path];
+}
+
+export function purge(path) {
+    let page = pages[path];
+    if (page) {
+        if (page.buildTime.getTime() + PURGE_COOLDOWN_MIN * 60 * 1000 > Date.now()) {
+            return false;
+        } else {
+            pages[path] = {};
+            buildPage(path);
+            return true;
+        }
+    }
+    return false;
+}
+
+export function getPages() {
+    return pages;
+}
+
+export function getNavbar(current = '') {
+    let navbar  = '';
+    for (const path of Object.keys(pages)) {
+        if (pages[path].hidden) {
+            continue;
+        }
+        navbar = navbar + `<div class="navbar-element"><a href="/${path}"${current == path ? ' class="highlight"' : ''}>${pages[path].displayTitle}</a></div>`;
+    }
+    return navbar;
+}