Add clear asset GPS endpoint + UI

- DELETE /api/assets/{id}/gps: clears lat/lng to NULL
- GET /api/assets/{id}: asset lookup by ID
- GET /api/assets/search?machine_id=: asset lookup by machine ID
- Export & Admin page: Clear Asset GPS card with lookup + confirmation
- Tests: 204 success + 404 not found

admin_server.py

@@ -1583,6 +1583,51 @@ def export_checkins_csv(asset_id: Optional[int] = Query(None)):
     )
 
 
+# ─── Asset GPS Management ──────────────────────────────────────────────────
+
+
+@app.get("/api/assets/{asset_id}")
+def get_asset_admin(asset_id: int):
+    """Get a single asset by ID (admin)."""
+    conn = get_db()
+    row = conn.execute("SELECT * FROM assets WHERE id = ?", (asset_id,)).fetchone()
+    conn.close()
+    if row is None:
+        raise HTTPException(status_code=404, detail="Asset not found")
+    return row_to_dict(row)
+
+
+@app.get("/api/assets/search")
+def search_assets_admin(machine_id: str = Query(...)):
+    """Search for an asset by machine_id (admin)."""
+    conn = get_db()
+    row = conn.execute(
+        "SELECT * FROM assets WHERE machine_id = ?", (machine_id,)
+    ).fetchone()
+    conn.close()
+    if row is None:
+        raise HTTPException(status_code=404, detail="Asset not found")
+    return row_to_dict(row)
+
+
+@app.delete("/api/assets/{asset_id}/gps", status_code=204)
+def clear_asset_gps(asset_id: int):
+    """Clear GPS coordinates from an asset (sets latitude/longitude to NULL)."""
+    conn = get_db()
+    existing = conn.execute("SELECT id, name FROM assets WHERE id = ?", (asset_id,)).fetchone()
+    if existing is None:
+        conn.close()
+        raise HTTPException(status_code=404, detail="Asset not found")
+    conn.execute(
+        "UPDATE assets SET latitude = NULL, longitude = NULL, updated_at = datetime('now') WHERE id = ?",
+        (asset_id,),
+    )
+    _log_activity(conn, "updated", "asset", asset_id,
+                  f"GPS data cleared for '{existing['name']}'")
+    conn.commit()
+    conn.close()
+
+
 # ─── Icon Upload API ────────────────────────────────────────────────────────
 
 

static/index.html

@@ -878,6 +878,17 @@
         <a href="/api/export/checkins" class="btn btn-outline" download>📄 Export Check-Ins CSV</a>
       </div>
     </div>
+    <div class="card">
+      <div class="card-title">Clear Asset GPS</div>
+      <p style="font-size:13px;color:var(--text2);margin-bottom:10px;">
+        Clear GPS coordinates from an asset. Enter the asset ID or machine ID.
+      </p>
+      <div style="display:flex;gap:8px;margin-bottom:10px;">
+        <input id="clearGpsAssetId" type="text" class="input-field" placeholder="Asset ID or Machine ID" style="flex:1;">
+        <button class="btn btn-outline btn-sm" onclick="clearAssetGps()">📍 Clear GPS</button>
+      </div>
+      <div id="clearGpsResult" style="display:none;"></div>
+    </div>
     <div class="card">
       <div class="card-title">Database</div>
       <div style="display:flex;flex-wrap:wrap;gap:8px;">
@@ -2110,6 +2121,58 @@ async function confirmResetDb() {
   }
 }
 
+// ── Clear Asset GPS ──────────────────────────────────────────────────────
+async function clearAssetGps() {
+  const input = document.getElementById('clearGpsAssetId').value.trim();
+  if (!input) {
+    showToast('Enter an asset ID or machine ID', true);
+    return;
+  }
+  const resultEl = document.getElementById('clearGpsResult');
+  resultEl.style.display = 'none';
+
+  try {
+    // Try numeric asset ID first, otherwise search by machine_id
+    let asset;
+    const idNum = parseInt(input);
+    if (!isNaN(idNum) && idNum > 0) {
+      try {
+        asset = await api('/api/assets/' + idNum);
+      } catch (e) {
+        // Fall through to machine_id search
+      }
+    }
+    if (!asset) {
+      asset = await api('/api/assets/search?machine_id=' + encodeURIComponent(input));
+    }
+
+    if (!asset || !asset.id) {
+      resultEl.style.display = '';
+      resultEl.innerHTML = '<span style="color:var(--red);">Asset not found</span>';
+      return;
+    }
+
+    const confirmed = await showModal(
+      'Clear GPS Data',
+      `<strong>${esc(asset.name)}</strong> (#${asset.id})<br>
+       Machine ID: ${esc(asset.machine_id)}<br>
+       Current: lat=${asset.latitude || 'none'}, lng=${asset.longitude || 'none'}<br><br>
+       Remove GPS coordinates from this asset?`,
+      'Clear GPS', 'btn-danger'
+    );
+    if (!confirmed) return;
+
+    await api('/api/assets/' + asset.id + '/gps', { method: 'DELETE' });
+    resultEl.style.display = '';
+    resultEl.innerHTML = '<span style="color:var(--green);">✅ GPS data cleared for ' + esc(asset.name) + ' (#' + asset.id + ')</span>';
+    document.getElementById('clearGpsAssetId').value = '';
+    showToast('GPS data cleared');
+  } catch (e) {
+    resultEl.style.display = '';
+    resultEl.innerHTML = '<span style="color:var(--red);">' + esc(e.message) + '</span>';
+  }
+}
+
 // ═════════════════════════════════════════════════════════════════════════════
 // CANTALOUPE SYNC
 // ═════════════════════════════════════════════════════════════════════════════

test_admin_crud.py

@@ -288,3 +288,32 @@ class TestSettings:
         cid = _assert_created(client.post("/api/settings/categories", json={"name": name}), "category")
         resp = client.delete(f"/api/settings/categories/{cid}")
         assert resp.status_code == 204
+
+
+# ─── Asset GPS ──────────────────────────────────────────────────────────────
+
+class TestClearAssetGps:
+    def test_clear_gps_returns_204(self, client):
+        """Clear GPS returns 204 and sets lat/lng to null."""
+        # Create an asset with GPS coords via direct DB insert
+        import sqlite3
+        conn = sqlite3.connect(DB_PATH)
+        conn.execute(
+            "INSERT INTO assets (machine_id, name, latitude, longitude) VALUES (?, ?, ?, ?)",
+            ("GPS-ADMIN-TEST", "Test GPS Asset", 28.5, -81.3),
+        )
+        asset_id = conn.execute("SELECT last_insert_rowid()").fetchone()[0]
+        conn.commit()
+        conn.close()
+
+        resp = client.delete(f"/api/assets/{asset_id}/gps")
+        assert resp.status_code == 204
+
+        # Verify
+        data = _assert_ok(client.get(f"/api/assets/{asset_id}"), "asset")
+        assert data["latitude"] is None
+        assert data["longitude"] is None
+
+    def test_clear_gps_not_found_returns_404(self, client):
+        resp = client.delete("/api/assets/99999/gps")
+        assert resp.status_code == 404