import paramiko
from update.models import UpdateCommand
from django.db.models import Q


class UpdateCommandUtil:
    def __init__(self, cinema_ip):
        self.cinema_config = {'hostname': cinema_ip, 'port': 22, 'username': 'root', 'password': 'cine123456'}
        self.client = paramiko.SSHClient()
        self.model = UpdateCommand

    def connect(self):
        self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.client.connect(**self.cinema_config)

    def disconnect(self):
        self.client.close()

    def get_all_cmd(self):
        return self.model.objects.order_by().all()

    def get_sys_cmd(self):
        return self.model.objects.filter(is_sys='1').order_by(id).all()

    def get_no_sys_cmd(self):
        return self.model.objects.exclude(is_sys='1').order_by(id).all()

    def get_checked_cmd(self, cmd_list):
        sys_cmd = self.get_sys_cmd()
        checked_cmd = self.model.objects.filter(id__in=cmd_list).order_by(id).all()
        return sys_cmd + checked_cmd

    def exec_cmd(self, cmd_list, _release):
        exec_cmd_list = self.get_checked_cmd(cmd_list)
        for cmd in cmd_list:
            if '<param>' in cmd:
                cmd = cmd.replace('<param>', _release)
                exec_cmd_list.append(cmd)
            elif cmd.startswith('<multi>'):
                cmd = cmd.replace('<multi>', _release)
                for c in cmd.split('###'):
                    exec_cmd_list.append(c)
            else:
                exec_cmd_list.append(cmd)
        self.connect()
        for exec_cmd in exec_cmd_list:
            stdin, stdout, stderr = self.client.exec_command(exec_cmd)
            print(stdout.read().decode('utf-8'))
        self.disconnect()