public async selectSerialPort()

in src/serialmonitor/serialMonitor.ts [118:152]
32 lines of code
14 McCabe index (conditional complexity)

    public async selectSerialPort(vid: string, pid: string) {
        const lists = await SerialPortCtrl.list();
        if (!lists.length) {
            vscode.window.showInformationMessage("No serial port is available.");
            return;
        }

        if (vid && pid) {
            const valueOfVid = parseInt(vid, 16);
            const valueOfPid = parseInt(pid, 16);
            const foundPort = lists.find((p) => {
                // The pid and vid returned by SerialPortCtrl start with 0x prefix in Mac, but no 0x prefix in Win32.
                // Should compare with decimal value to keep compatibility.
                if (p.productId && p.vendorId) {
                    return parseInt(p.productId, 16) === valueOfPid && parseInt(p.vendorId, 16) === valueOfVid;
                }
                return false;
            });
            if (foundPort && !(this._serialPortCtrl && this._serialPortCtrl.isActive)) {
                this.updatePortListStatus(foundPort.port);
            }
        } else {
            const chosen = await vscode.window.showQuickPick(<vscode.QuickPickItem[]>lists.map((l: ISerialPortDetail): vscode.QuickPickItem => {
                return {
                    description: l.desc,
                    label: l.port,
                };
            }).sort((a, b): number => {
                return a.label === b.label ? 0 : (a.label > b.label ? 1 : -1);
            }), { placeHolder: "Select a serial port" });
            if (chosen && chosen.label) {
                this.updatePortListStatus(chosen.label);
            }
        }
    }