Initial commit

1 files changed, 116 insertions, 0 deletions

diff --git a/public/script.js b/public/script.js
new file mode 100644
index 0000000..0bfe734
--- /dev/null
+++ b/public/script.js
@@ -0,0 +1,116 @@
+const DB_DIR_KEY = "DIR_HANDLE";
+const bar = document.querySelector("#bar");
+const btn = document.querySelector("#btn");
+const stdoutEl = document.querySelector("#stdout");
+const fileListEl = document.querySelector("#fileList");
+const db = await idb();
+
+const stdout = (msg) => (stdoutEl.textContent = msg);
+
+if (await db.has(DB_DIR_KEY)) {
+  btn.textContent = "Wgraj pliki z folderu " + (await db.get(DB_DIR_KEY)).name;
+} else {
+  btn.textContent = "Wybierz folder";
+}
+
+async function handleUpload() {
+  let dirHandle;
+  if (await db.has(DB_DIR_KEY)) {
+    dirHandle = await db.get(DB_DIR_KEY);
+    dirHandle.requestPermission();
+  } else {
+    dirHandle = await window.showDirectoryPicker();
+  }
+
+  const filesUploaded = [];
+  const formData = new FormData();
+  for await (const [_, fileHandle] of dirHandle.entries()) {
+    if (fileHandle.kind !== "file") continue;
+    formData.append("files", await fileHandle.getFile());
+    filesUploaded.push(fileHandle.name);
+  }
+
+  await upload(formData);
+
+  if ((await db.has(DB_DIR_KEY)) === false) {
+    await db.set(DB_DIR_KEY, dirHandle);
+  }
+  stdout(
+    `Pliki\n\n[${filesUploaded.join(", ")}]\n\nz folderu\n\n${dirHandle.name}\n\nwgrane`,
+  );
+}
+btn.onclick = handleUpload;
+
+async function listFiles() {
+  const files = await fetch("./cgi-bin/list-files.py").then((res) =>
+    res.json(),
+  );
+  const children = [];
+  for (const file of files) {
+    const li = document.createElement("li");
+    li.textContent = file;
+    const b = document.createElement("button");
+    b.textContent = "Usun";
+    b.onclick = () => deleteFile(file);
+    li.appendChild(b);
+    children.push(li);
+  }
+  fileListEl.replaceChildren(...children);
+}
+listFiles();
+
+async function deleteFile(fileName) {
+  await fetch(
+    "./cgi-bin/delete-file.py?filename=" + encodeURIComponent(fileName),
+    {
+      method: "POST",
+    },
+  );
+  await listFiles();
+}
+
+async function upload(formData, onProgress) {
+  return new Promise((resolve, reject) => {
+    const xhr = new XMLHttpRequest();
+
+    bar.value = 0;
+
+    xhr.upload.addEventListener("progress", (e) => {
+      if (e.lengthComputable) {
+        const percent = (e.loaded / e.total) * 100;
+        bar.value = percent;
+      }
+    });
+
+    xhr.addEventListener("load", resolve);
+
+    xhr.open("POST", "./cgi-bin/upload.py");
+    xhr.send(formData);
+  });
+}
+
+async function idb(dbName = "app", store = "kv") {
+  const db = await new Promise((resolve, reject) => {
+    const req = indexedDB.open(dbName, 1);
+    req.onupgradeneeded = () => req.result.createObjectStore(store);
+    req.onsuccess = () => resolve(req.result);
+    req.onerror = () => reject(req.error);
+  });
+
+  const run = (mode, fn) =>
+    new Promise((resolve, reject) => {
+      const t = db.transaction(store, mode);
+      const req = fn(t.objectStore(store));
+      t.oncomplete = () => resolve(req?.result);
+      t.onerror = () => reject(t.error);
+    });
+
+  return {
+    get: (k) => run("readonly", (s) => s.get(k)),
+    set: (k, v) => run("readwrite", (s) => s.put(v, k)),
+    del: (k) => run("readwrite", (s) => s.delete(k)),
+    keys: () => run("readonly", (s) => s.getAllKeys()),
+    clear: () => run("readwrite", (s) => s.clear()),
+    has: (k) => run("readonly", (s) => s.count(k)).then((n) => n > 0),
+  };
+}