mac new backned wiht some chnages

let macAutoData = [
    { macAddress: 'AA:BB:CC:DD:EE:01', vlanId: 10, port: '1' },
    { macAddress: 'AA:BB:CC:DD:EE:02', vlanId: 20, port: '2' },
    { macAddress: 'AA:BB:CC:DD:EE:03', vlanId: 30, port: '3' },
    { macAddress: 'AA:BB:CC:DD:EE:04', vlanId: 10, port: '1' },
    { macAddress: 'AA:BB:CC:DD:EE:05', vlanId: 20, port: '2' },
    { macAddress: 'AA:BB:CC:DD:EE:06', vlanId: 30, port: '3' },
    // Add more as needed
];

// Store applied MAC filters per port
let macFilteredData = {}; // { '1': [ {macAddress, vlanId} ], ... }


this.app.get('/api/mac-filter', (req, res) => {
            const { port } = req.query;

            if (port && port !== '0') {
                const entries = macFilteredData[port] || [];
                return res.json(entries);
            }

            // Combine all port data into a flat array with port info
            const allEntries = Object.entries(macFilteredData).flatMap(([port, entries]) =>
                entries.map(entry => ({ ...entry, port }))
            );

            res.json(allEntries);
        });
        
         this.app.post('/api/mac-filter', (req, res) => {
            const { port, macEntries } = req.body;

            if (!port || !Array.isArray(macEntries)) {
                return res.status(400).json({ error: 'Invalid request body' });
            }

            if (!macFilteredData[port]) macFilteredData[port] = [];

            // Avoid duplicates
            macEntries.forEach(entry => {
                const exists = macFilteredData[port].some(
                    e => e.macAddress === entry.macAddress && e.vlanId === entry.vlanId
                );
                if (!exists) {
                    macFilteredData[port].push({ macAddress: entry.macAddress, vlanId: entry.vlanId });
                }
            });

            res.json(macFilteredData[port]);
        });
        
         this.app.delete('/api/mac-filter', (req, res) => {
            const { port, entries } = req.body;

            if (!port || !Array.isArray(entries)) {
                return res.status(400).json({ error: 'Invalid request body' });
            }

            if (!macFilteredData[port]) return res.json([]);

            macFilteredData[port] = macFilteredData[port].filter(
                e => !entries.some(entry =>
                    e.macAddress === entry.macAddress && e.vlanId === entry.vlanId
                )
            );

            res.json(macFilteredData[port]);
        });
        
        this.app.post('/api/mac-filter-apply', (req, res) => {
            const { bindings } = req.body;

            if (!Array.isArray(bindings) || bindings.length === 0) {
                return res.status(400).json({ error: 'No bindings provided.' });
            }

            bindings.forEach(({ port, macAddress, vlanId }) => {
                if (!port || !macAddress || isNaN(vlanId)) return;

                if (!macFilteredData[port]) macFilteredData[port] = [];

                const exists = macFilteredData[port].some(
                    e => e.macAddress === macAddress && e.vlanId === vlanId
                );

                if (!exists) {
                    macFilteredData[port].push({ macAddress, vlanId });
                }
            });

            console.log('Filtered MAC entries:', macFilteredData);
            res.status(200).json({ message: 'MAC filter applied successfully.' });
        });