const pm2 = require('pm2')
const { execSync } = require("child_process")

function startPm2Process(process_name, file, path, env) {

    pm2.connect(function (err) {
        if (err) {
            console.error(err)
            // process.exit(2);
        }

        console.log('ENV PM2: ', env)

        pm2.start({
            name: process_name,
            script: file,
            cwd: path,
            env
            // env: {
            //     NODE_ENV: 'production',

            //     PORT: port, 
            // }
            // additional options here if needed
        }, function (err, apps) {
            if (err) {
                console.error(err)
                // process.exit(2);
            }
            else {
                execSync(`pm2 save --force`, { cwd: path }, (error, stdout, stderr) => {
                    if (error) {
                        console.log(`error: ${error.message}`)
                        return
                    }
                    if (stderr) {
                        console.log(`stderr: ${stderr}`)
                        return
                    }
                    console.log(`stdout: ${stdout}`)
                })
            }

            pm2.disconnect()
        })
    })

}

module.exports = startPm2Process