79 lines
2.6 KiB
JavaScript
79 lines
2.6 KiB
JavaScript
const express = require('express');
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const { spawn } = require('child_process');
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const fs = require('fs');
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const path = require('path');
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const app = express();
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const port = 3005; // Port for the GTM Architect service
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app.use(express.json({ limit: '50mb' }));
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// Determine Environment and Paths
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const distPath = path.join(__dirname, 'dist');
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const isProduction = fs.existsSync(distPath);
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const staticDir = isProduction ? distPath : __dirname;
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console.log(`[Init] Serving static files from: ${staticDir}`);
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app.use(express.static(staticDir));
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// Determine Python Script Path
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// In Docker (optimized), script is in same dir. Locally, it might be one level up.
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let pythonScriptPath = path.join(__dirname, 'gtm_architect_orchestrator.py');
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if (!fs.existsSync(pythonScriptPath)) {
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pythonScriptPath = path.join(__dirname, '../gtm_architect_orchestrator.py');
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}
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console.log(`[Init] Using Python script at: ${pythonScriptPath}`);
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function callPythonScript(mode, data, res) {
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const pythonProcess = spawn('python3', [pythonScriptPath, '--mode', mode]);
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let pythonData = '';
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let errorData = '';
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pythonProcess.stdout.on('data', (data) => {
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pythonData += data.toString();
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});
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pythonProcess.stderr.on('data', (data) => {
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errorData += data.toString();
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});
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pythonProcess.on('close', (code) => {
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if (code !== 0) {
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console.error(`Python script exited with code ${code}`);
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console.error('Stderr:', errorData);
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return res.status(500).json({ error: 'Python script execution failed.', details: errorData });
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}
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try {
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const result = JSON.parse(pythonData);
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res.json(result);
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} catch (e) {
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console.error('Failed to parse Python script output:', e);
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console.error('Raw output:', pythonData);
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res.status(500).json({ error: 'Failed to parse Python script output.', details: pythonData });
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}
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});
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pythonProcess.stdin.write(JSON.stringify(data));
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pythonProcess.stdin.end();
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}
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// API endpoint to handle requests from the frontend
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app.post('/api/gtm', (req, res) => {
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const { mode, data } = req.body;
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if (!mode || !data) {
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return res.status(400).json({ error: 'Missing mode or data in request body' });
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}
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callPythonScript(mode, data, res);
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});
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// Serve the main index.html for any other requests to support client-side routing
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app.get('*', (req, res) => {
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res.sendFile(path.join(staticDir, 'index.html'));
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});
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app.listen(port, () => {
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console.log(`GTM Architect server listening at http://localhost:${port}`);
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});
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