import uuid

from django.utils.translation import gettext_lazy as _
from rest_framework import serializers

from assets.models import Asset
from common.serializers import ResourceLabelsMixin
from common.serializers.fields import ReadableHiddenField
from ops.mixin import PeriodTaskSerializerMixin
from ops.models import Job, JobExecution
from orgs.mixins.serializers import BulkOrgResourceModelSerializer


class JobSerializer(ResourceLabelsMixin, BulkOrgResourceModelSerializer, PeriodTaskSerializerMixin):
    creator = ReadableHiddenField(default=serializers.CurrentUserDefault())
    run_after_save = serializers.BooleanField(label=_("Run after save"), default=False, required=False)
    nodes = serializers.ListField(required=False, child=serializers.CharField())
    date_last_run = serializers.DateTimeField(label=_('Date last run'), read_only=True)
    name = serializers.CharField(label=_('Name'), max_length=128, allow_blank=True, required=False)
    assets = serializers.PrimaryKeyRelatedField(label=_('Assets'), queryset=Asset.objects, many=True, required=False)

    def to_internal_value(self, data):
        instant = data.get('instant', False)
        if instant:
            _uid = str(uuid.uuid4()).split('-')[-1]
            data['name'] = f'job-{_uid}'
        return super().to_internal_value(data)

    def get_request_user(self):
        request = self.context.get('request')
        user = request.user if request else None
        return user

    class Meta:
        model = Job
        read_only_fields = [
            "id", "date_last_run", "date_created",
            "date_updated", "average_time_cost"
        ]
        fields = read_only_fields + [
            "name", "instant", "type", "module",
            "args", "playbook", "assets", "labels",
            "runas_policy", "runas", "creator",
            "use_parameter_define", "parameters_define",
            "timeout", "chdir", "comment", "summary",
            "is_periodic", "interval", "crontab", "nodes",
            "run_after_save",
        ]


class JobExecutionSerializer(BulkOrgResourceModelSerializer):
    creator = ReadableHiddenField(default=serializers.CurrentUserDefault())
    job_type = serializers.ReadOnlyField(label=_("Job type"))
    material = serializers.ReadOnlyField(label=_("Command"))
    is_success = serializers.ReadOnlyField(label=_("Is success"))
    is_finished = serializers.ReadOnlyField(label=_("Is finished"))
    time_cost = serializers.ReadOnlyField(label=_("Time cost"))

    class Meta:
        model = JobExecution
        read_only_fields = ["id", "task_id", "timedelta", "time_cost",
                            'is_finished', 'date_start', 'date_finished',
                            'date_created', 'is_success', 'job_type',
                            'summary', 'material']
        fields = read_only_fields + [
            "job", "parameters", "creator"
        ]