Add LOAD MP4 button flow before START RECOUNT in upload templates

templates/recounting_upload.html

@@ -484,7 +484,7 @@
       <div class="video-container" id="video-container">
         <div class="video-placeholder" id="video-placeholder">
           <div class="vp-icon">&#9654;</div>
-          <div class="vp-text">Upload an MP4 and start recount</div>
+          <div class="vp-text">Upload an MP4, then LOAD and START recount</div>
           <div class="vp-hint">Preview via recount node live feed</div>
         </div>
         <img id="stream-img" alt="Stream" style="display:none;" />
@@ -525,6 +525,9 @@
       </div>
 
       <div class="btn-row">
+        <button class="btn btn-ghost" id="btn-load" onclick="loadMp4()" disabled>
+          &#9655; LOAD MP4
+        </button>
         <button class="btn btn-primary" id="btn-start" onclick="startRecount()" disabled>
           &#9654; START RECOUNT
         </button>
@@ -548,6 +551,8 @@
 let selectedFile = null;
 let streaming = false;
 let streamUrl = '';
+let loaded = false;
+let started = false;
 let pendingUploadFile = null;
 let batchResultLoaded = false;
 
@@ -639,9 +644,7 @@ function uploadFile() {
       }
       showUploadStatus('Upload complete: ' + data.name, 'success');
       selectedFile = data.path;
-      document.getElementById('btn-start').disabled = false;
-      document.getElementById('btn-download').disabled = false;
-      document.getElementById('btn-delete').disabled = false;
+      renderButtons();
       document.getElementById('pending-filename').textContent = 'no file chosen';
       document.getElementById('pending-filename').classList.remove('has-file');
       pendingUploadFile = null;
@@ -677,9 +680,7 @@ function selectFile(path, name) {
   if (selectedFile === path) {
     selectedFile = null;
     batchResultLoaded = false;
-    document.getElementById('btn-start').disabled = true;
-    document.getElementById('btn-download').disabled = true;
-    document.getElementById('btn-delete').disabled = true;
+    renderButtons();
     document.getElementById('live-title').innerHTML = '&#9673; Live Counter';
     document.getElementById('live-count').textContent = '--';
     document.getElementById('live-label').textContent = 'Objects Counted';
@@ -691,9 +692,7 @@ function selectFile(path, name) {
     return;
   }
   selectedFile = path;
-  document.getElementById('btn-start').disabled = false;
-  document.getElementById('btn-download').disabled = false;
-  document.getElementById('btn-delete').disabled = false;
+  renderButtons();
   updateFileSelection();
   loadBatchResult(path);
 }
@@ -746,8 +745,69 @@ function formatSize(bytes) {
   return (bytes / 1073741824).toFixed(1) + ' GB';
 }
 
-async function startRecount() {
+function renderButtons() {
+  var btnLoad = document.getElementById('btn-load');
+  var btnStart = document.getElementById('btn-start');
+  var btnStop = document.getElementById('btn-stop');
+  var btnDownload = document.getElementById('btn-download');
+  var btnDelete = document.getElementById('btn-delete');
+
+  btnLoad.disabled = !(selectedFile && !loaded);
+
+  if (loaded && !started) {
+    btnStart.disabled = false;
+    btnStart.textContent = '\u25b6 START RECOUNT';
+    btnStart.classList.remove('btn-ghost');
+  } else if (started) {
+    btnStart.disabled = true;
+    btnStart.textContent = 'STREAMING';
+    btnStart.classList.add('btn-ghost');
+  } else {
+    btnStart.disabled = true;
+    btnStart.textContent = '\u25b6 START RECOUNT';
+    btnStart.classList.remove('btn-ghost');
+  }
+
+  btnStop.disabled = !streaming;
+  btnDownload.disabled = !selectedFile;
+  btnDelete.disabled = !selectedFile;
+}
+
+async function loadMp4() {
   if (!selectedFile) return;
+  var btnLoad = document.getElementById('btn-load');
+  btnLoad.disabled = true;
+  btnLoad.textContent = 'LOADING...';
+  try {
+    var res = await fetch('/api/load-mp4', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ path: selectedFile })
+    });
+    var data = await res.json();
+    if (!data.success) {
+      alert('Failed: ' + (data.error || 'unknown'));
+      renderButtons();
+      return;
+    }
+    streamUrl = data.stream_url;
+    selectedFile = data.path;
+    streaming = true;
+    loaded = true;
+    started = false;
+    showUploadStatus('LOADED ' + data.file + ' \u2014 press START RECOUNT', 'success');
+    renderButtons();
+    syncState();
+  } catch (err) {
+    alert('Error: ' + err.message);
+    renderButtons();
+  } finally {
+    btnLoad.textContent = '\u25b6 LOAD MP4';
+  }
+}
+
+async function startRecount() {
+  if (!selectedFile || !loaded) return;
   var btnStart = document.getElementById('btn-start');
   btnStart.disabled = true;
   btnStart.textContent = 'CONNECTING...';
@@ -761,32 +821,28 @@ async function startRecount() {
 
   try {
     var res = await fetch('/api/start-recount', {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ path: selectedFile })
+      method: 'POST'
     });
     var data = await res.json();
     if (!data.success) {
       alert('Failed: ' + (data.error || 'unknown'));
-      btnStart.disabled = false;
-      btnStart.textContent = '\u25b6 START RECOUNT';
+      renderButtons();
       return;
     }
     streamUrl = data.stream_url;
     streaming = true;
     selectedFile = data.path;
+    loaded = true;
+    started = true;
 
-    document.getElementById('btn-stop').disabled = false;
-    btnStart.textContent = 'STREAMING';
-    btnStart.classList.add('btn-ghost');
+    renderButtons();
     document.getElementById('video-status').innerHTML =
       '<span style="width:6px;height:6px;border-radius:50%;background:var(--accent4);box-shadow:0 0 6px var(--accent4);animation:blink 1.5s ease-in-out infinite;"></span> streaming ' + data.file;
     document.getElementById('video-status').className = 'video-status connected';
     enablePreview();
   } catch (err) {
     alert('Error: ' + err.message);
-    btnStart.disabled = false;
-    btnStart.textContent = '\u25b6 START RECOUNT';
+    renderButtons();
   }
 }
 
@@ -800,6 +856,8 @@ async function stopRecount() {
   streaming = false;
   streamUrl = '';
   selectedFile = null;
+  loaded = false;
+  started = false;
   batchResultLoaded = false;
 
   var img = document.getElementById('stream-img');
@@ -808,15 +866,7 @@ async function stopRecount() {
   img.style.display = 'none';
   if (placeholder) placeholder.style.display = '';
 
-  var btnStart = document.getElementById('btn-start');
-  var btnStop = document.getElementById('btn-stop');
-  btnStart.disabled = true;
-  btnStart.textContent = '\u25b6 START RECOUNT';
-  btnStart.classList.remove('btn-ghost');
-  btnStop.disabled = true;
-
-  document.getElementById('btn-download').disabled = true;
-  document.getElementById('btn-delete').disabled = true;
+  renderButtons();
 
   document.getElementById('video-status').innerHTML =
     '<span style="width:6px;height:6px;border-radius:50%;background:var(--text-secondary);"></span> stopped';
@@ -893,12 +943,8 @@ function applyState(data) {
     streaming = true;
     streamUrl = data.stream_url;
     selectedFile = data.file;
-    document.getElementById('btn-stop').disabled = false;
-    document.getElementById('btn-start').disabled = true;
-    document.getElementById('btn-download').disabled = false;
-    document.getElementById('btn-delete').disabled = false;
-    document.getElementById('btn-start').textContent = 'STREAMING';
-    document.getElementById('btn-start').classList.add('btn-ghost');
+    loaded = true;
+    renderButtons();
     document.getElementById('video-status').innerHTML =
       '<span style="width:6px;height:6px;border-radius:50%;background:var(--accent4);box-shadow:0 0 6px var(--accent4);animation:blink 1.5s ease-in-out infinite;"></span> streaming ' + (data.file_name || '');
     document.getElementById('video-status').className = 'video-status connected';
@@ -906,7 +952,14 @@ function applyState(data) {
 
     loadBatchResult(data.file);
   } else if (data.file && selectedFile === data.file) {
+    loaded = false;
+    started = false;
+    renderButtons();
     loadBatchResult(data.file);
+  } else if (!data.streaming) {
+    loaded = false;
+    started = false;
+    renderButtons();
   }
 }
 
@@ -969,9 +1022,7 @@ async function deleteUploadRecord(fpath) {
     if (selectedFile === fpath) {
       selectedFile = null;
       batchResultLoaded = false;
-      document.getElementById('btn-start').disabled = true;
-      document.getElementById('btn-download').disabled = true;
-      document.getElementById('btn-delete').disabled = true;
+      renderButtons();
       document.getElementById('live-title').innerHTML = '&#9673; Live Counter';
       document.getElementById('live-count').textContent = '--';
       document.getElementById('live-label').textContent = 'Objects Counted';

templates/recounting_upload_lamborghini.html

@@ -363,7 +363,7 @@
       <div class="video-container" id="video-container">
         <div class="video-placeholder" id="video-placeholder">
           <div class="vp-icon">&#9654;</div>
-          <div class="vp-text">Upload an MP4 and start recount</div>
+          <div class="vp-text">Upload an MP4, then LOAD and START recount</div>
           <div class="vp-hint">Preview via recount node live feed</div>
         </div>
         <img id="stream-img" alt="Stream" style="display:none;" />
@@ -404,6 +404,9 @@
       </div>
 
       <div class="btn-row">
+        <button class="btn btn-ghost" id="btn-load" onclick="loadMp4()" disabled>
+          &#9655; LOAD MP4
+        </button>
         <button class="btn btn-primary" id="btn-start" onclick="startRecount()" disabled>
           &#9654; START RECOUNT
         </button>
@@ -427,6 +430,8 @@
 let selectedFile = null;
 let streaming = false;
 let streamUrl = '';
+let loaded = false;
+let started = false;
 let pendingUploadFile = null;
 let batchResultLoaded = false;
 
@@ -518,9 +523,7 @@ function uploadFile() {
       }
       showUploadStatus('Upload complete: ' + data.name, 'success');
       selectedFile = data.path;
-      document.getElementById('btn-start').disabled = false;
-      document.getElementById('btn-download').disabled = false;
-      document.getElementById('btn-delete').disabled = false;
+      renderButtons();
       document.getElementById('pending-filename').textContent = 'no file chosen';
       document.getElementById('pending-filename').classList.remove('has-file');
       pendingUploadFile = null;
@@ -556,9 +559,7 @@ function selectFile(path, name) {
   if (selectedFile === path) {
     selectedFile = null;
     batchResultLoaded = false;
-    document.getElementById('btn-start').disabled = true;
-    document.getElementById('btn-download').disabled = true;
-    document.getElementById('btn-delete').disabled = true;
+    renderButtons();
     document.getElementById('live-title').innerHTML = 'Live Counter';
     document.getElementById('live-count').textContent = '--';
     document.getElementById('live-label').textContent = 'Objects Counted';
@@ -570,9 +571,7 @@ function selectFile(path, name) {
     return;
   }
   selectedFile = path;
-  document.getElementById('btn-start').disabled = false;
-  document.getElementById('btn-download').disabled = false;
-  document.getElementById('btn-delete').disabled = false;
+  renderButtons();
   updateFileSelection();
   loadBatchResult(path);
 }
@@ -625,8 +624,69 @@ function formatSize(bytes) {
   return (bytes / 1073741824).toFixed(1) + ' GB';
 }
 
-async function startRecount() {
+function renderButtons() {
+  var btnLoad = document.getElementById('btn-load');
+  var btnStart = document.getElementById('btn-start');
+  var btnStop = document.getElementById('btn-stop');
+  var btnDownload = document.getElementById('btn-download');
+  var btnDelete = document.getElementById('btn-delete');
+
+  btnLoad.disabled = !(selectedFile && !loaded);
+
+  if (loaded && !started) {
+    btnStart.disabled = false;
+    btnStart.textContent = '\u25b6 START RECOUNT';
+    btnStart.classList.remove('btn-ghost');
+  } else if (started) {
+    btnStart.disabled = true;
+    btnStart.textContent = 'STREAMING';
+    btnStart.classList.add('btn-ghost');
+  } else {
+    btnStart.disabled = true;
+    btnStart.textContent = '\u25b6 START RECOUNT';
+    btnStart.classList.remove('btn-ghost');
+  }
+
+  btnStop.disabled = !streaming;
+  btnDownload.disabled = !selectedFile;
+  btnDelete.disabled = !selectedFile;
+}
+
+async function loadMp4() {
   if (!selectedFile) return;
+  var btnLoad = document.getElementById('btn-load');
+  btnLoad.disabled = true;
+  btnLoad.textContent = 'LOADING...';
+  try {
+    var res = await fetch('/api/load-mp4', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ path: selectedFile })
+    });
+    var data = await res.json();
+    if (!data.success) {
+      alert('Failed: ' + (data.error || 'unknown'));
+      renderButtons();
+      return;
+    }
+    streamUrl = data.stream_url;
+    selectedFile = data.path;
+    streaming = true;
+    loaded = true;
+    started = false;
+    showUploadStatus('LOADED ' + data.file + ' \u2014 press START RECOUNT', 'success');
+    renderButtons();
+    syncState();
+  } catch (err) {
+    alert('Error: ' + err.message);
+    renderButtons();
+  } finally {
+    btnLoad.textContent = '\u25b6 LOAD MP4';
+  }
+}
+
+async function startRecount() {
+  if (!selectedFile || !loaded) return;
   var btnStart = document.getElementById('btn-start');
   btnStart.disabled = true;
   btnStart.textContent = 'CONNECTING...';
@@ -640,32 +700,28 @@ async function startRecount() {
 
   try {
     var res = await fetch('/api/start-recount', {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ path: selectedFile })
+      method: 'POST'
     });
     var data = await res.json();
     if (!data.success) {
       alert('Failed: ' + (data.error || 'unknown'));
-      btnStart.disabled = false;
-      btnStart.textContent = '\u25b6 START RECOUNT';
+      renderButtons();
       return;
     }
     streamUrl = data.stream_url;
     streaming = true;
     selectedFile = data.path;
+    loaded = true;
+    started = true;
 
-    document.getElementById('btn-stop').disabled = false;
-    btnStart.textContent = 'STREAMING';
-    btnStart.classList.add('btn-ghost');
+    renderButtons();
     document.getElementById('video-status').innerHTML =
       '<span style="width:5px;height:5px;background:var(--success);display:inline-block;"></span> streaming ' + data.file;
     document.getElementById('video-status').className = 'video-status connected';
     enablePreview();
   } catch (err) {
     alert('Error: ' + err.message);
-    btnStart.disabled = false;
-    btnStart.textContent = '\u25b6 START RECOUNT';
+    renderButtons();
   }
 }
 
@@ -679,6 +735,8 @@ async function stopRecount() {
   streaming = false;
   streamUrl = '';
   selectedFile = null;
+  loaded = false;
+  started = false;
   batchResultLoaded = false;
 
   var img = document.getElementById('stream-img');
@@ -687,15 +745,7 @@ async function stopRecount() {
   img.style.display = 'none';
   if (placeholder) placeholder.style.display = '';
 
-  var btnStart = document.getElementById('btn-start');
-  var btnStop = document.getElementById('btn-stop');
-  btnStart.disabled = true;
-  btnStart.textContent = '\u25b6 START RECOUNT';
-  btnStart.classList.remove('btn-ghost');
-  btnStop.disabled = true;
-
-  document.getElementById('btn-download').disabled = true;
-  document.getElementById('btn-delete').disabled = true;
+  renderButtons();
 
   document.getElementById('video-status').innerHTML =
     '<span style="width:5px;height:5px;background:var(--ash);display:inline-block;"></span> stopped';
@@ -772,12 +822,8 @@ function applyState(data) {
     streaming = true;
     streamUrl = data.stream_url;
     selectedFile = data.file;
-    document.getElementById('btn-stop').disabled = false;
-    document.getElementById('btn-start').disabled = true;
-    document.getElementById('btn-download').disabled = false;
-    document.getElementById('btn-delete').disabled = false;
-    document.getElementById('btn-start').textContent = 'STREAMING';
-    document.getElementById('btn-start').classList.add('btn-ghost');
+    loaded = true;
+    renderButtons();
     document.getElementById('video-status').innerHTML =
       '<span style="width:5px;height:5px;background:var(--success);display:inline-block;"></span> streaming ' + (data.file_name || '');
     document.getElementById('video-status').className = 'video-status connected';
@@ -785,7 +831,14 @@ function applyState(data) {
 
     loadBatchResult(data.file);
   } else if (data.file && selectedFile === data.file) {
+    loaded = false;
+    started = false;
+    renderButtons();
     loadBatchResult(data.file);
+  } else if (!data.streaming) {
+    loaded = false;
+    started = false;
+    renderButtons();
   }
 }
 
@@ -848,9 +901,7 @@ async function deleteUploadRecord(fpath) {
     if (selectedFile === fpath) {
       selectedFile = null;
       batchResultLoaded = false;
-      document.getElementById('btn-start').disabled = true;
-      document.getElementById('btn-download').disabled = true;
-      document.getElementById('btn-delete').disabled = true;
+      renderButtons();
       document.getElementById('live-title').innerHTML = 'Live Counter';
       document.getElementById('live-count').textContent = '--';
       document.getElementById('live-label').textContent = 'Objects Counted';