import nmap3

class Nmap(object):

    def __init__(self, unknown, networks):
        self.unknown = unknown
        self.networks = networks
        self.hosts = list()
        self.scan_results = {}

    def scan(self):
        nmap = nmap3.NmapHostDiscovery() # instantiate nmap object
        for item in self.networks:
            temp_scan_result = nmap.nmap_no_portscan(item.replace('\n', ''))
            self.scan_results = {**self.scan_results, **temp_scan_result}
        return self.scan_results

    def run(self):
        scan_result = self.scan()
        scan_result.pop("stats")
        scan_result.pop("runtime")
        for k,v in scan_result.items():
            try:
                self.hosts.append((
                    k,
                    v['hostname'][0]['name']
                ))
            except (IndexError, KeyError):
                self.hosts.append((
                    k,
                    self.unknown
                ))