async getBaseConfig()

in functions/source/nic-attachment/lib/core/autoscale-handler.js [223:319]
86 lines of code
25 McCabe index (conditional complexity)

    async getBaseConfig() {
        let baseConfig = await this.getConfigSet('baseconfig');
        let psksecret = this._settings['fortigate-psk-secret'],
            fazConfig = '',
            fazIp;
        if (baseConfig) {
            // check if other config set are required
            let requiredConfigSet = this._settings['required-configset'] || '';
            let configContent = '';
            // check if second nic is enabled, config for the second nic must be prepended to
            // base config
            if (this._settings['enable-second-nic'] === 'true') {
                baseConfig = (await this.getConfigSet('port2config')) + baseConfig;
            }
            // if internal elb is enabled, require this 'httpsroutingpolicy' configset
            if (this._settings['enable-internal-elb'] === 'true') {
                // if not empty requiredConfigSet add the , delimiter
                if (requiredConfigSet !== '') {
                    requiredConfigSet += ',';
                }
                requiredConfigSet += 'httpsroutingpolicy-yes';
            }
            // if faz integration is enabled, require this 'fazintegration' configset
            if (this._settings['enable-fortianalyzer-integration'] === 'true') {
                // if not empty requiredConfigSet add the , delimiter
                if (requiredConfigSet !== '') {
                    requiredConfigSet += ',';
                }
                requiredConfigSet += 'fazintegration-yes';
            }
            let alreadyRequired = [];
            for (let configset of requiredConfigSet.split(',')) {
                let [name, selected] = (configset.includes('-') &&
                    configset
                        .trim()
                        .split('-')
                        .map(str => (str && str.toLowerCase()) || null)) || [null, null];
                if (selected === 'yes' && !alreadyRequired.includes(name)) {
                    // prevent from adding the same config set multiple times
                    alreadyRequired.push(name);
                    switch (name) {
                        // handle https routing policy
                        case 'httpsroutingpolicy':
                            configContent += await this.getConfigSet('internalelbweb');
                            configContent += await this.getConfigSet(name);
                            break;
                        // handle fortianalyzer integration config
                        case 'fazintegration':
                            fazIp = await this.getFazIp();
                            if (fazIp) {
                                fazConfig = await this.getConfigSet(name);
                                configContent += fazConfig.replace(
                                    new RegExp('{FAZ_PRIVATE_IP}', 'gm'),
                                    fazIp
                                );
                            }
                            break;
                        case 'extrastaticroutes':
                            configContent += await this.getConfigSet('extrastaticroutes');
                            break;
                        case 'extraports':
                            configContent += await this.getConfigSet('extraports');
                            break;
                        default:
                            break;
                    }
                }
            }
            baseConfig += configContent;

            baseConfig = baseConfig
                .replace(
                    new RegExp('{SYNC_INTERFACE}', 'gm'),
                    this._settings['fortigate-sync-interface'] || 'port1'
                )
                .replace(new RegExp('{EXTERNAL_INTERFACE}', 'gm'), 'port1')
                .replace(new RegExp('{INTERNAL_INTERFACE}', 'gm'), 'port2')
                .replace(new RegExp('{PSK_SECRET}', 'gm'), psksecret)
                .replace(
                    new RegExp('{TRAFFIC_PORT}', 'gm'),
                    this._settings['fortigate-traffic-port'] || 443
                )
                .replace(
                    new RegExp('{ADMIN_PORT}', 'gm'),
                    this._settings['fortigate-admin-port'] || 8443
                )
                .replace(
                    new RegExp('{HEART_BEAT_INTERVAL}', 'gm'),
                    this._settings['heartbeat-interval'] || 30
                )
                .replace(
                    new RegExp('{INTERNAL_ELB_DNS}', 'gm'),
                    this._settings['fortigate-protected-internal-elb-dns'] || ''
                );
        }
        return baseConfig;
    }