import json
import time

import paramiko
import pymysql

from update.models import UpdateCommand, Cinema
from update.serializers import UpdateCommandSerializer
from django.db.models import Q
from time import sleep


class UpdateCommandUtil:
    def __init__(self):
        self.client = paramiko.SSHClient()
        self.channel = None
        self.model = UpdateCommand

    def connect(self, cinema_ip):
        cinema_config = {'hostname': cinema_ip, 'port': 22, 'username': 'root', 'password': 'cine123456'}
        self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.client.connect(**cinema_config)

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

    def get_all_cmd(self):
        return self.model.objects.filter(is_delete=False).order_by('id').all()

    def get_sys_cmd(self):
        return self.model.objects.filter(Q(is_delete=False) & Q(is_sys=True)).order_by('id').all()

    def get_no_sys_cmd(self):
        return self.model.objects.filter(Q(is_delete=False) & Q(is_sys=False)).order_by('id').all()

    def get_no_sys_setup_cmd(self):
        return self.model.objects.filter(Q(is_delete=False) & Q(is_sys=False) & Q(process='setup')).order_by('id').all()

    def get_no_sys_teardown_cmd(self):
        return self.model.objects.filter(Q(is_delete=False) & Q(is_sys=False) & Q(process='teardown')).order_by(
            'id').all()

    def get_no_sys_sql_cmd(self):
        return self.model.objects.filter(Q(is_delete=False) & Q(is_sys=False) & Q(process='sql')).order_by('id').all()

    def get_no_sys_client_cmd(self):
        return self.model.objects.filter(Q(is_delete=False) & Q(is_sys=False) & Q(process='client')).order_by(
            'id').all()

    def get_checked_cmd(self, cmd_list):
        sys_result = self.get_sys_cmd()
        checked_setup_result = self.model.objects.filter(
            Q(is_delete='0') & Q(id__in=cmd_list) & Q(process='setup')).order_by('run_num').all()
        checked_teardown_result = self.model.objects.filter(
            Q(is_delete='0') & Q(id__in=cmd_list) & Q(process='teardown')).order_by('run_num').all()
        sys_cmd = [sys.command for sys in sys_result]
        checked_setup_cmd = [setup.command for setup in checked_setup_result]
        checked_teardown_cmd = [teardown.command for teardown in checked_teardown_result]
        return {'sys': sys_cmd, 'setup': checked_setup_cmd, 'teardown': checked_teardown_cmd}

    def exec_cmd(self, cinema_ip, _exec_cmd_list):
        self.connect(cinema_ip)
        for exec_cmd in _exec_cmd_list:
            print(exec_cmd)
            stdin, stdout, stderr = self.client.exec_command(exec_cmd)
            print(stdout.read().decode('utf-8'))
            print(stderr.read().decode('utf-8'))
        self.disconnect()

    def exec_cmd_by_type(self, cinema_ip, _type, cmd_list, short_release):
        print(cinema_ip, _type, cmd_list, short_release)
        exec_cmd_list = []
        exec_cmd_data = self.get_checked_cmd(cmd_list)
        if _type == 'setup':
            cmds = exec_cmd_data['sys'] + exec_cmd_data['setup']
        elif _type == 'teardown':
            cmds = exec_cmd_data['teardown']
        else:
            cmds = exec_cmd_data['sys']
        for cmd in cmds:
            if '<params>' in cmd:
                cmd = cmd.replace('<params>', short_release)
                exec_cmd_list.append(cmd)
            elif cmd.startswith('<multi>'):
                cmd = cmd.replace('<multi>', '')
                for c in cmd.split('|||'):
                    exec_cmd_list.append(c)
            else:
                exec_cmd_list.append(cmd)
        self.exec_cmd(cinema_ip, exec_cmd_list)


# 执行设置相关
class UpdateConfigUtil:
    def __init__(self, cinema_ip, checked_list):
        self.ip = cinema_ip
        self.checked_list = checked_list

    def exec_config(self):
        cmd_list = self.get_all_exec_cmd()
        db_config = Cinema.objects.filter(ip=self.ip).values()[0]
        print(db_config)
        print(db_config['db_user'], db_config['db_pwd'])
        db_conn = pymysql.Connect(host=self.ip, port=3306, user=db_config['db_user'], passwd=db_config['db_pwd'],
                                  database='cine')
        db_cursor = db_conn.cursor()
        for cmds in cmd_list:
            for cmd in cmds:
                db_cursor.execute(cmd)
                db_conn.commit()
        db_cursor.close()
        db_conn.close()

    def get_all_exec_cmd(self):
        all_config_obj = UpdateCommand.objects.filter(Q(process='config') & Q(is_delete=False)).values()
        print(all_config_obj)
        cmd_list = []
        for config_item in all_config_obj:
            print(config_item)
            if config_item['id'] in self.checked_list:
                cmd_list.append(json.loads(config_item['command'])['checked'])
            else:
                cmd_list.append(json.loads(config_item['command'])['unchecked'])
        return cmd_list