Add Admin database backup and restore page

public/app.js

@@ -4,7 +4,7 @@ const PAGE_SIZE = 10;
 const money = new Intl.NumberFormat("en-US", { style: "currency", currency: "USD" });
 const today = () => new Date().toISOString().slice(0, 10);
 const fmtDate = (v) => v ? new Date(`${v}T12:00:00`).toLocaleDateString("en-US", { year: "numeric", month: "short", day: "numeric" }) : "—";
-const fmtDateTime = (v) => v ? new Date(`${v.replace(" ","T")}Z`).toLocaleString("en-US", { year:"numeric", month:"short", day:"numeric", hour:"numeric", minute:"2-digit" }) : "—";
+const fmtDateTime = (v) => v ? new Date(v.includes("T")?v:`${v.replace(" ","T")}Z`).toLocaleString("en-US", { year:"numeric", month:"short", day:"numeric", hour:"numeric", minute:"2-digit" }) : "—";
 const esc = (v = "") => String(v).replace(/[&<>'"]/g, c => ({ "&":"&amp;", "<":"&lt;", ">":"&gt;", "'":"&#39;", '"':"&quot;" })[c]);
 const ids = p => [["UID",p.uid],["SN",p.sn],["MAC",p.mac]].filter(([,v]) => v);
 const primaryId = p => ids(p)[0]?.[1] || "No identifier";
@@ -46,6 +46,8 @@ function render() {
   $("#revenue").textContent=monthSales.length?`${money.format(monthSales.reduce((n,p)=>n+Number(p.salePrice||0),0))} in sales`:"No sales recorded";
   $("#availableBadge").textContent=available.length; $("#soldBadge").textContent=sold.length; $("#customerBadge").textContent=customers().length;
   document.querySelectorAll("[data-tab]").forEach(b=>b.classList.toggle("active",b.dataset.tab===state.tab));
+  if(state.tab==="admin") { $(".table-wrap").hidden=true; $("#adminPanel").hidden=false; $("#pagination").innerHTML=""; renderAdmin(); return; }
+  $(".table-wrap").hidden=false; $("#adminPanel").hidden=true;
   const all=filtered(), pages=Math.max(1,Math.ceil(all.length/PAGE_SIZE)); state.page=Math.min(state.page,pages);
   const start=(state.page-1)*PAGE_SIZE, rows=all.slice(start,start+PAGE_SIZE);
   $("#thead").innerHTML=state.tab==="available"?"<tr><th>Product</th><th>UID / SN / MAC</th><th>Received</th><th>Cost</th><th>Status</th><th></th></tr>":state.tab==="customers"?"<tr><th>Customer</th><th>Phone</th><th>Purchases</th><th>Last purchase</th><th>Total spent</th><th></th></tr>":"<tr><th>Product</th><th>Customer</th><th>UID / SN / MAC</th><th>Sold</th><th>Payment</th><th>Sale price</th><th></th></tr>";
@@ -84,6 +86,15 @@ async function viewCustomer(p) {
 function restockForm(p){ openModal(`<h2>Void sale & restock</h2><p>Return ${esc(p.model)} to inventory.</p><form id="restockForm"><label>Condition<select name="condition"><option>Used</option><option>Refurbished</option><option>New</option></select></label><label>Return date<input name="receivedAt" type="date" value="${today()}" required></label><div class="form-actions"><button type="button" class="secondary" data-cancel>Cancel</button><button class="primary">Restock product</button></div></form>`); $("[data-cancel]").onclick=closeModal; $("#restockForm").onsubmit=e=>submitForm(e,`/api/products/${encodeURIComponent(p.id)}/restock`,"Product restocked."); }
 
 async function load(){ state.products=await api("/api/products"); render(); }
+async function renderAdmin(){
+  const panel=$("#adminPanel"); panel.innerHTML='<div class="admin-loading">Loading backups…</div>';
+  try{const backups=await api("/api/admin/backups");panel.innerHTML=`<div class="admin-page"><div><h2>Database backups</h2><p>Create snapshots inside the persistent <code>/data/backups</code> folder, download an off-server copy, or restore a previous database.</p></div><div class="admin-actions"><button class="primary" id="createBackup">Create backup now</button><label class="upload-backup">Restore uploaded backup<input id="restoreUpload" type="file" accept=".db,application/vnd.sqlite3"></label></div><div class="backup-warning"><strong>Restore replaces the active database.</strong> The app automatically creates a pre-restore backup and restarts the container.</div><div class="backup-list">${backups.length?backups.map(b=>`<article><div><strong>${esc(b.name)}</strong><small>${fmtDateTime(b.createdAt)} · ${(b.size/1024).toFixed(1)} KB</small></div><div><a class="button secondary" href="/api/admin/backups/${encodeURIComponent(b.name)}/download">Download</a><button class="secondary" data-restore-backup="${esc(b.name)}">Restore</button></div></article>`).join(""):"<p>No local backups yet.</p>"}</div></div>`;
+    $("#createBackup").onclick=async()=>{try{await api("/api/admin/backups",{method:"POST",body:"{}"});toast("Database backup created.");renderAdmin();}catch(e){toast(e.message);}};
+    $("#restoreUpload").onchange=async e=>{const file=e.target.files[0];if(!file||!confirm(`Restore ${file.name}? Current data will be replaced and the container will restart.`))return;await restoreUpload(file);};
+    document.querySelectorAll("[data-restore-backup]").forEach(b=>b.onclick=async()=>{if(!confirm(`Restore ${b.dataset.restoreBackup}? Current data will be replaced and the container will restart.`))return;try{storageStatus("saving","Restoring database");await api(`/api/admin/backups/${encodeURIComponent(b.dataset.restoreBackup)}/restore`,{method:"POST",body:"{}"});panel.innerHTML='<div class="restart-message"><h2>Restore complete</h2><p>The container is restarting. Refresh this page in a few seconds.</p></div>';}catch(e){toast(e.message);}});
+  }catch(e){panel.innerHTML=`<div class="restart-message"><h2>Unable to load backups</h2><p>${esc(e.message)}</p></div>`;}
+}
+async function restoreUpload(file){const panel=$("#adminPanel");try{storageStatus("saving","Restoring database");const response=await fetch("/api/admin/restore-upload",{method:"POST",headers:{"content-type":"application/octet-stream"},body:file});const data=await response.json();if(!response.ok)throw new Error(data.error||"Restore failed");panel.innerHTML='<div class="restart-message"><h2>Restore complete</h2><p>The container is restarting. Refresh this page in a few seconds.</p></div>';}catch(e){storageStatus("critical","Database error");toast(e.message);}}
 document.querySelectorAll("[data-tab]").forEach(b=>b.onclick=()=>{state.tab=b.dataset.tab;state.page=1;render();});
 $("#search").oninput=e=>{state.query=e.target.value;state.page=1;render();};
 $("[data-open=receive]").onclick=receiveForm; $("[data-open=sell]").onclick=()=>sellForm();

public/extras.css

@@ -3,3 +3,4 @@
 .address-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px}.detail-card{background:#f7f9fc;border:1px solid #e2e7ef;border-radius:10px;padding:14px;margin:14px 0}.detail-card h3,.customer-purchases h3{margin:0 0 10px}.detail-card p{margin:4px 0!important}.customer-purchases{max-height:330px;overflow:auto}.customer-purchases article{border-top:1px solid #e5e9f0;padding:12px 0}.customer-purchases article:first-child{border-top:0}.customer-purchases button{padding:6px 9px;background:#edf3ff;color:#1d4ed8}@media(max-width:760px){.address-grid{grid-template-columns:1fr}#pagination{align-items:flex-start;flex-direction:column}#pagination>div{width:100%;align-items:center;justify-content:space-between}}
 .customer-notes{margin:18px 0}.customer-notes h3{margin-bottom:8px}.customer-notes article{position:relative;border:1px solid #e2e7ef;border-radius:9px;padding:12px;margin:8px 0}.customer-notes article>div{display:flex;align-items:center;gap:8px;color:#667085}.customer-notes article p{white-space:pre-wrap;margin:10px 0}.customer-notes article>button{position:absolute;right:8px;top:8px;padding:5px 8px;background:#fff0f0;color:#c62828}.note-category{background:#edf3ff;color:#1d4ed8;border-radius:99px;padding:3px 8px;font-size:12px;font-weight:700}
 .storage-status{margin-left:auto!important;display:flex;align-items:center;gap:7px;white-space:nowrap}.storage-status i{width:9px;height:9px;border-radius:50%;background:#f59e0b;box-shadow:0 0 0 3px #f59e0b22}.storage-status b{font-weight:600}.storage-status.connected i{background:#16a34a;box-shadow:0 0 0 3px #16a34a22}.storage-status.saving i,.storage-status.connecting i{background:#f59e0b;box-shadow:0 0 0 3px #f59e0b22;animation:status-pulse 1s infinite}.storage-status.critical{color:#b42318!important}.storage-status.critical i{background:#dc2626;box-shadow:0 0 0 3px #dc262622}@keyframes status-pulse{50%{opacity:.4}}@media(max-width:760px){.storage-status{display:flex!important;flex-basis:100%;margin-left:0!important;padding-bottom:10px}.records nav{height:auto;flex-wrap:wrap}}
+#adminPanel{padding:24px}.admin-page{display:grid;gap:20px}.admin-page h2{margin:0 0 5px}.admin-page p{color:#667085}.admin-actions{display:flex;gap:10px;flex-wrap:wrap}.upload-backup{display:inline-flex;margin:0;background:#fff;border:1px solid #d7deea;border-radius:9px;padding:10px 14px;color:#27344a;cursor:pointer}.upload-backup input{display:none}.backup-warning{padding:13px 15px;border-radius:9px;background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}.backup-list{border:1px solid #e3e7ef;border-radius:10px}.backup-list article{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:14px;border-bottom:1px solid #edf0f5}.backup-list article:last-child{border-bottom:0}.backup-list article small{display:block;color:#7b8799;margin-top:4px}.backup-list article>div:last-child{display:flex;gap:8px}.backup-list a{text-decoration:none}.restart-message{text-align:center;padding:60px 20px}@media(max-width:760px){.backup-list article{align-items:flex-start;flex-direction:column}}

public/index.html

@@ -1,5 +1,5 @@
 <!doctype html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>vSeeBox Stockroom</title><link rel="stylesheet" href="/style.css"><link rel="stylesheet" href="/extras.css"></head>
 <body><header><div class="brand"><b>S</b><span>Stockroom</span></div><input id="search" type="search" placeholder="Search UID, SN, MAC, model, customer…"><div class="actions"><button class="secondary" data-open="receive">＋ Receive product</button><button class="primary" data-open="sell">Record a sale</button></div></header>
 <main><div class="intro"><h1>Inventory Overview</h1><span id="date"></span></div><section class="stats"><article><span>Available products</span><strong id="availableCount">0</strong><small>Ready to sell</small></article><article><span>Sold this month</span><strong id="soldCount">0</strong><small id="revenue">No sales recorded</small></article><article><span>Inventory value</span><strong id="value">$0</strong><small>Based on purchase cost</small></article></section>
-<section class="records"><nav><button class="tab active" data-tab="available">Available inventory <i id="availableBadge">0</i></button><button class="tab" data-tab="sold">Sales history <i id="soldBadge">0</i></button><button class="tab" data-tab="customers">Customers <i id="customerBadge">0</i></button><span id="storageStatus" class="storage-status connecting" role="status" aria-live="polite"><i></i><b>Connecting to database</b></span></nav><div class="table-wrap"><table><thead id="thead"></thead><tbody id="rows"></tbody></table><div id="empty" hidden></div></div><footer id="pagination"></footer></section></main>
+<section class="records"><nav><button class="tab active" data-tab="available">Available inventory <i id="availableBadge">0</i></button><button class="tab" data-tab="sold">Sales history <i id="soldBadge">0</i></button><button class="tab" data-tab="customers">Customers <i id="customerBadge">0</i></button><button class="tab" data-tab="admin">Admin</button><span id="storageStatus" class="storage-status connecting" role="status" aria-live="polite"><i></i><b>Connecting to database</b></span></nav><div class="table-wrap"><table><thead id="thead"></thead><tbody id="rows"></tbody></table><div id="empty" hidden></div></div><div id="adminPanel" hidden></div><footer id="pagination"></footer></section></main>
 <dialog id="modal"><button class="close" aria-label="Close">×</button><div id="modalBody"></div></dialog><div id="toast" hidden></div><script type="module" src="/app.js"></script></body></html>