u

uiserver/api/outputs.js

@@ -0,0 +1,73 @@
+/**
+ * Outputs API - Output channel definitions and values
+ */
+
+module.exports = function setupOutputsApi(app, { db, OUTPUT_CHANNELS, OUTPUT_BINDINGS }) {
+    // GET /api/outputs - List output channel definitions
+    app.get('/api/outputs', (req, res) => {
+        res.json(OUTPUT_CHANNELS);
+    });
+
+    // GET /api/outputs/values - Get current output values
+    app.get('/api/outputs/values', (req, res) => {
+        try {
+            if (!db) throw new Error('Database not connected');
+            const result = {};
+            const stmt = db.prepare(`
+                SELECT channel, value FROM output_events 
+                WHERE id IN (
+                    SELECT MAX(id) FROM output_events GROUP BY channel
+                )
+            `);
+            const rows = stmt.all();
+            rows.forEach(row => {
+                result[row.channel] = row.value;
+            });
+            // Fill in defaults for missing channels
+            OUTPUT_CHANNELS.forEach(ch => {
+                if (result[ch.channel] === undefined) {
+                    result[ch.channel] = 0;
+                }
+            });
+            res.json(result);
+        } catch (err) {
+            res.status(500).json({ error: err.message });
+        }
+    });
+
+    // GET /api/outputs/commands - Get desired states for bound devices
+    // Agents poll this to get commands. Returns { "device:channel": { state: 0|1 } }
+    app.get('/api/outputs/commands', (req, res) => {
+        try {
+            if (!db) throw new Error('Database not connected');
+
+            // Get current output values
+            const stmt = db.prepare(`
+                SELECT channel, value FROM output_events 
+                WHERE id IN (
+                    SELECT MAX(id) FROM output_events GROUP BY channel
+                )
+            `);
+            const rows = stmt.all();
+            const outputValues = {};
+            rows.forEach(row => {
+                outputValues[row.channel] = row.value;
+            });
+
+            // Map to device commands
+            const commands = {};
+            for (const [outputChannel, binding] of Object.entries(OUTPUT_BINDINGS)) {
+                const value = outputValues[outputChannel] ?? 0;
+                const deviceKey = `${binding.device}:${binding.channel}`;
+                commands[deviceKey] = {
+                    state: value > 0 ? 1 : 0,
+                    source: outputChannel
+                };
+            }
+
+            res.json(commands);
+        } catch (err) {
+            res.status(500).json({ error: err.message });
+        }
+    });
+};