# ~*~ coding: utf-8 ~*~
from django.utils.translation import ugettext_lazy as _
from rest_framework import serializers

from common.utils import pretty_string
from .models import AbstractSessionCommand

__all__ = ['SessionCommandSerializer', 'InsecureCommandAlertSerializer']


class SimpleSessionCommandSerializer(serializers.Serializer):
    """ 简单Session命令序列类, 用来提取公共字段 """
    user = serializers.CharField(label=_("User"))  # 限制 64 字符，见 validate_user
    asset = serializers.CharField(max_length=128, label=_("Asset"))
    input = serializers.CharField(max_length=2048, label=_("Command"))
    session = serializers.CharField(max_length=36, label=_("Session ID"))
    risk_level = serializers.ChoiceField(
        required=False, label=_("Risk level"), choices=AbstractSessionCommand.RISK_LEVEL_CHOICES
    )
    org_id = serializers.CharField(
        max_length=36, required=False, default='', allow_null=True, allow_blank=True
    )

    def validate_user(self, value):
        if len(value) > 64:
            value = value[:32] + value[-32:]
        return value


class InsecureCommandAlertSerializer(SimpleSessionCommandSerializer):
    pass


class SessionCommandSerializerMixin(serializers.Serializer):
    """使用这个类作为基础Command Log Serializer类, 用来序列化"""
    id = serializers.UUIDField(read_only=True)
    # 限制 64 字符，不能直接迁移成 128 字符，命令表数据量会比较大
    account = serializers.CharField(label=_("Account "))
    output = serializers.CharField(max_length=2048, allow_blank=True, label=_("Output"))
    timestamp = serializers.IntegerField(label=_('Timestamp'))
    timestamp_display = serializers.DateTimeField(read_only=True, label=_('Datetime'))
    remote_addr = serializers.CharField(read_only=True, label=_('Remote Address'))

    def validate_account(self, value):
        if len(value) > 64:
            value = pretty_string(value, 64)
        return value


class SessionCommandSerializer(SessionCommandSerializerMixin, SimpleSessionCommandSerializer):
    """ 字段排序序列类 """
    pass