make do without tauri and test vid

s 0f44589 ws that starts to work
s 6df44a1 first video
s dacb6cd click to time
s 7831ae4 remove tauri
s 2d18c9b concurrently and frontmatter
s dc43284 add new video and test
s 0dd03af fix for youtube format and markdown compat
s c30fa38 remove placeholder mds
s d8f1a54 remove images from git

server.js

@@ -0,0 +1,92 @@
+// @ts-check
+import { WebSocketServer } from 'ws';
+import { readFileSync, mkdirSync, writeFileSync } from "fs";
+import { join as joinPath } from 'path'
+import matter from 'gray-matter';
+
+const PORT = 8080
+
+const wss = new WebSocketServer({ port: PORT });
+
+console.log(`WebSocket server running on ws://localhost:${PORT}`);
+
+wss.on('connection', (ws) => {
+  console.log('New client connected');
+
+  let filename = ''
+  const ROOT_DIR = 'docs';
+
+  ws.on('message', (message, isBinary) => {
+    if (message instanceof Buffer && isBinary) {
+      writeFileSync(joinPath(ROOT_DIR, filename), message);
+
+      return;
+    }
+
+    const { name, ...payload } = JSON.parse(message.toString('utf-8'));
+
+    switch (name) {
+      case 'download_q': {
+        const { q, duration } = payload;
+        console.log(`Start ${q}`)
+
+        const q_stem = q.replace(/\.[a-z0-9]+$/, "").replace(/\[.+?\]/g, '').trim();
+
+        try {
+          mkdirSync(joinPath(ROOT_DIR, q_stem));
+        } catch (e) {}
+
+        let isChanged = false;
+
+        const ts = [];
+
+        let { data, content } = matter(readFileSync(joinPath(ROOT_DIR, `${q_stem}.md`), 'utf-8'));
+        data.video = '/' + q;
+
+        const interval = data.interval;
+        if (typeof interval === 'number') {
+          for (let t = 0; t < duration; t += interval) {
+            const min = Math.floor(t / 60)
+            const sec = Math.floor(t - min * 60)
+
+            content += `\n${min}:${sec.toString().padStart(2, '0')}\n`;
+          }
+        }
+
+        const re = /^(?<min>\d{1,2}):(?<sec>\d{2})\s*$/;
+        const lines = content.split('\n')
+        content = ''
+        for (const line of lines) {
+          const m = re.exec(line);
+          if (m?.groups) {
+            const { min, sec } = m.groups;
+            const t = `${min}_${sec}`;
+            ts.push(t);
+            content += `\n![${line}](./${q_stem}/${t}.png)\n\n`;
+            isChanged = true;
+          } else {
+            content += `${line}\n`;
+          }
+        }
+
+        if (isChanged){
+          writeFileSync(joinPath(ROOT_DIR, `${q_stem}.md`), matter.stringify(content, data));
+          ws.send(JSON.stringify({ name: "seek_q_ts", q, ts }));
+        }
+      } break;
+      case 'timed_q' : {
+        const { q, t } = payload;
+        const q_stem = q.replace(/\.[a-z0-9]+$/, "").replace(/\[.+?\]/g, '').trim();
+        filename = t ? joinPath(q_stem, `${t}.png`) : '';
+      } break;
+      case 'done' : {
+        const { q } = payload
+        console.log(`Done ${q}`)
+      } break;
+    }
+  });
+
+  ws.on('close', () => {
+    console.log('Client disconnected');
+  });
+});