feat: initial release

web/static/js/app.js

@@ -0,0 +1,83 @@
+const $ = (id) => document.getElementById(id);
+const dropZone = $("drop-zone");
+const fileInput = $("file-input");
+
+if (dropZone) {
+  dropZone.onclick = () => {
+    if ($("idle-state").style.display !== "none") fileInput.click();
+  };
+
+  fileInput.onchange = () => {
+    if (fileInput.files[0]) handleUpload(fileInput.files[0]);
+  };
+
+  ["dragenter", "dragover"].forEach((n) =>
+    dropZone.addEventListener(n, (e) => {
+      e.preventDefault();
+      dropZone.classList.add("dragover");
+    }),
+  );
+
+  ["dragleave", "drop"].forEach((n) =>
+    dropZone.addEventListener(n, (e) => {
+      e.preventDefault();
+      dropZone.classList.remove("dragover");
+    }),
+  );
+
+  dropZone.addEventListener("drop", (e) => {
+    e.preventDefault();
+    if (e.dataTransfer.files.length) handleUpload(e.dataTransfer.files[0]);
+  });
+}
+
+async function handleUpload(file) {
+  $("idle-state").style.display = "none";
+  $("busy-state").style.display = "block";
+
+  const uploadID = Math.random().toString(36).substring(2, 15);
+  const chunkSize = 1024 * 1024 * 8;
+  const total = Math.ceil(file.size / chunkSize);
+
+  try {
+    for (let i = 0; i < total; i++) {
+      const fd = new FormData();
+      fd.append("upload_id", uploadID);
+      fd.append("index", i);
+      fd.append("chunk", file.slice(i * chunkSize, (i + 1) * chunkSize));
+      const res = await fetch("/upload/chunk", { method: "POST", body: fd });
+      if (!res.ok) throw new Error();
+      $("p-fill").style.width = ((i + 1) / total) * 100 + "%";
+    }
+
+    const finalFd = new FormData();
+    finalFd.append("upload_id", uploadID);
+    finalFd.append("filename", file.name);
+    finalFd.append("total", total);
+
+    const res = await fetch("/upload/finish", {
+      method: "POST",
+      body: finalFd,
+      headers: { "X-Requested-With": "XMLHttpRequest" },
+    });
+
+    $("busy-state").style.display = "none";
+    $("result-state").innerHTML = await res.text();
+  } catch (e) {
+    $("busy-state").style.display = "none";
+    $("result-state").innerHTML = `<div class="error-text">Upload Failed</div><button class="reset-btn" onclick="resetUI()">Try again</button>`;
+  }
+}
+
+function copyToClipboard(btn) {
+  const input = $("share-url");
+  input.select();
+  const fullUrl = window.location.protocol + "//" + input.value;
+  navigator.clipboard.writeText(fullUrl);
+  btn.innerText = "Copied!";
+  setTimeout(() => (btn.innerText = "Copy"), 2000);
+}
+
+function resetUI() {
+  location.reload();
+}