Fix duplicate onboarding client names

src/web/routes/admin-screen-commands.js

@@ -3,6 +3,7 @@ module.exports = function registerAdminScreenCommandRoutes(app, deps) {
   const forwardPlayerCommand = deps.forwardPlayerCommand;
   const getScreenConnections = deps.getScreenConnections;
   const isClientNameAvailable = deps.isClientNameAvailable;
+  const withClientNameReservation = deps.withClientNameReservation;
 
   app.post('/admin/screens/:slug/commands', async function (req, res, next) {
     try {
@@ -56,40 +57,66 @@ module.exports = function registerAdminScreenCommandRoutes(app, deps) {
             unchanged: true
           });
         }
-        let liveConnections = [];
-        try {
-          const [screenSlugs] = await pool.query('SELECT slug FROM screens ORDER BY slug ASC');
-          const liveResults = await Promise.all((screenSlugs || []).map(async function (row) {
-            const screenSlug = String(row && row.slug ? row.slug : '').trim();
-            if (!screenSlug || typeof getScreenConnections !== 'function') {
-              return [];
-            }
-            try {
-              const liveResponse = await getScreenConnections(screenSlug);
-              return Array.isArray(liveResponse && liveResponse.connections) ? liveResponse.connections : [];
-            } catch (_error) {
-              return [];
-            }
-          }));
-          liveConnections = liveResults.flat();
-        } catch (_error) {
-          liveConnections = [];
+        if (typeof withClientNameReservation !== 'function') {
+          return res.status(500).json({ error: 'Client name reservation is unavailable.' });
         }
 
-        const available = typeof isClientNameAvailable === 'function'
-          ? await isClientNameAvailable(pool, clientName, deviceId, liveConnections)
-          : true;
-        if (!available) {
-          return res.status(409).json({ error: 'Client name already exists.' });
-        }
+        return withClientNameReservation(pool, clientName, async function () {
+          let liveConnections = [];
+          try {
+            const [screenSlugs] = await pool.query('SELECT slug FROM screens ORDER BY slug ASC');
+            const liveResults = await Promise.all((screenSlugs || []).map(async function (row) {
+              const screenSlug = String(row && row.slug ? row.slug : '').trim();
+              if (!screenSlug || typeof getScreenConnections !== 'function') {
+                return [];
+              }
+              try {
+                const liveResponse = await getScreenConnections(screenSlug);
+                return Array.isArray(liveResponse && liveResponse.connections) ? liveResponse.connections : [];
+              } catch (_error) {
+                return [];
+              }
+            }));
+            liveConnections = liveResults.flat();
+          } catch (_error) {
+            liveConnections = [];
+          }
 
-        if (!onboardingRow) {
-          await forwardPlayerCommand(slug, {
-            command: command,
-            clientName: clientName,
-            clientId: connectionId || deviceId || null,
-            deviceId: deviceId || null
-          }, connectionId || deviceId || undefined);
+          const available = await isClientNameAvailable(pool, clientName, deviceId, liveConnections);
+          if (!available) {
+            return res.status(409).json({ error: 'Client name already exists.' });
+          }
+
+          if (!onboardingRow) {
+            await forwardPlayerCommand(slug, {
+              command: command,
+              clientName: clientName,
+              clientId: connectionId || deviceId || null,
+              deviceId: deviceId || null
+            }, connectionId || deviceId || undefined);
+
+            return res.json({
+              screen: screenRows[0],
+              screenSlug: slug,
+              command: command,
+              connectionId: connectionId || null,
+              deviceId: deviceId,
+              clientName: clientName,
+              ok: true,
+              liveOnly: true
+            });
+          }
+
+          const [updateResult] = await pool.query(
+            `UPDATE player_onboarding_devices pod
+             JOIN screens s ON s.id = pod.screen_id
+             SET pod.client_name = ?, pod.modified_at = CURRENT_TIMESTAMP
+             WHERE s.slug = ? AND pod.device_id = ?`,
+            [clientName, slug, deviceId]
+          );
+          if (!updateResult.affectedRows) {
+            return res.status(404).json({ error: 'Client not found' });
+          }
 
           return res.json({
             screen: screenRows[0],
@@ -98,30 +125,8 @@ module.exports = function registerAdminScreenCommandRoutes(app, deps) {
             connectionId: connectionId || null,
             deviceId: deviceId,
             clientName: clientName,
-            ok: true,
-            liveOnly: true
+            ok: true
           });
-        }
-
-        const [updateResult] = await pool.query(
-          `UPDATE player_onboarding_devices pod
-           JOIN screens s ON s.id = pod.screen_id
-           SET pod.client_name = ?, pod.modified_at = CURRENT_TIMESTAMP
-           WHERE s.slug = ? AND pod.device_id = ?`,
-          [clientName, slug, deviceId]
-        );
-        if (!updateResult.affectedRows) {
-          return res.status(404).json({ error: 'Client not found' });
-        }
-
-        return res.json({
-          screen: screenRows[0],
-          screenSlug: slug,
-          command: command,
-          connectionId: connectionId || null,
-          deviceId: deviceId,
-          clientName: clientName,
-          ok: true
         });
       }