#!/usr/bin/env python
# -*- coding: utf-8 -*-


from flask import Blueprint, request
import json
import jimit as ji

from jimvc.models import Utils, Guest
from jimvc.models import Rules
from jimvc.models import VLAN
from jimvc.models import Host

from base import Base


__author__ = 'James Iter'
__date__ = '2019-03-12'
__contact__ = 'james.iter.cn@gmail.com'
__copyright__ = '(c) 2019 by James Iter.'


blueprint = Blueprint(
    'api_vlan',
    __name__,
    url_prefix='/api/vlan'
)

blueprints = Blueprint(
    'api_vlans',
    __name__,
    url_prefix='/api/vlans'
)


vlan_base = Base(the_class=VLAN, the_blueprint=blueprint, the_blueprints=blueprints)


@Utils.dumps2response
def r_create():

    args_rules = [
        Rules.VLAN_ID.value,
        Rules.LABEL.value,
        Rules.DESCRIPTION.value
    ]

    vlan = VLAN()
    vlan.vlan_id = request.json.get('vlan_id')
    vlan.label = request.json.get('label')
    vlan.description = request.json.get('description', '')

    try:
        ji.Check.previewing(args_rules, vlan.__dict__)

        ret = dict()
        ret['state'] = ji.Common.exchange_state(20000)

        if vlan.exist_by('vlan_id'):
            ret['state'] = ji.Common.exchange_state(40901)
            ret['state']['sub']['zh-cn'] = ''.join([ret['state']['sub']['zh-cn'], u': Vlan ID: ', str(vlan.vlan_id)])
            return ret

        vlan.create()
        vlan.get()

        # 取全部活着的 hosts
        available_hosts = Host.get_available_hosts(nonrandom=None)
        for host in available_hosts:
            message = {
                '_object': 'vlan',
                'action': 'create',
                'uuid': None,
                'node_id': host['node_id'],
                'vlan_id': vlan.vlan_id,
                'passback_parameters': {'vlan_id': vlan.vlan_id}
            }

            Utils.emit_instruction(message=json.dumps(message, ensure_ascii=False))

        ret['data'] = vlan.__dict__
        return ret
    except ji.PreviewingError, e:
        return json.loads(e.message)


@Utils.dumps2response
def r_update(ids):

    ret = dict()
    ret['state'] = ji.Common.exchange_state(20000)
    ret['data'] = list()

    args_rules = [
        Rules.IDS.value
    ]

    if 'label' in request.json:
        args_rules.append(
            Rules.LABEL.value,
        )

    if 'description' in request.json:
        args_rules.append(
            Rules.DESCRIPTION.value,
        )

    if args_rules.__len__() < 2:
        return ret

    request.json['ids'] = ids

    try:
        ji.Check.previewing(args_rules, request.json)

        vlan = VLAN()

        # 检测所指定的 vlan 都存在
        for _id in ids.split(','):
            vlan.id = _id
            vlan.get()

        for _id in ids.split(','):
            vlan.id = _id
            vlan.get()
            vlan.label = request.json.get('label', vlan.label)
            vlan.description = request.json.get('description', vlan.description)

            vlan.update()
            vlan.get()

            ret['data'].append(vlan.__dict__)

        return ret
    except ji.PreviewingError, e:
        return json.loads(e.message)


@Utils.dumps2response
def r_get(ids):
    return vlan_base.get(ids=ids, ids_rule=Rules.IDS.value, by_field='id')


@Utils.dumps2response
def r_get_by_filter():
    return vlan_base.get_by_filter()


@Utils.dumps2response
def r_content_search():
    return vlan_base.content_search()


@Utils.dumps2response
def r_delete(ids):
    args_rules = [
        Rules.IDS.value
    ]

    request.json['ids'] = ids

    try:
        ji.Check.previewing(args_rules, request.json)

        vlan = VLAN()

        # 检测所指定的 vlan 都存在
        for _id in ids.split(','):
            vlan.id = _id
            vlan.get()

            guests, _ = Guest.get_by_filter(filter_str=':'.join(['vlan_id', 'eq', vlan.vlan_id]))

            if guests.__len__() > 0:

                guests_info = ''
                for guest in guests:
                    guests_info += guest['label'] + ',' + guest['uuid'] + '.'

                ret = dict()
                ret['state'] = ji.Common.exchange_state(41262)
                ret['state']['sub']['zh-cn'] = ''.join([
                    ret['state']['sub']['zh-cn'], u': Vlan ID: ', vlan.vlan_id, u': Guests: ', guests_info])

                return ret

        for _id in ids.split(','):
            vlan.id = _id
            vlan.get()

            # 取全部活着的 hosts
            available_hosts = Host.get_available_hosts(nonrandom=None)
            for host in available_hosts:
                message = {
                    '_object': 'vlan',
                    'action': 'delete',
                    'uuid': None,
                    'node_id': host['node_id'],
                    'vlan_id': vlan.vlan_id,
                    'passback_parameters': {'vlan_id': vlan.vlan_id}
                }

                Utils.emit_instruction(message=json.dumps(message, ensure_ascii=False))

    except ji.PreviewingError, e:
        return json.loads(e.message)

    return vlan_base.delete(ids=ids, ids_rule=Rules.IDS.value, by_field='id')