from rest_framework import serializers

from .models import Ticket
from .lib import format_time_spent

from django.contrib.humanize.templatetags import humanize

"""
A serializer for the Ticket model, returns data in the format as required by
datatables for ticket_list.html. Called from staff.datatables_ticket_list.

"""


class DatatablesTicketSerializer(serializers.ModelSerializer):
    ticket = serializers.SerializerMethodField()
    assigned_to = serializers.SerializerMethodField()
    created = serializers.SerializerMethodField()
    due_date = serializers.SerializerMethodField()
    status = serializers.SerializerMethodField()
    row_class = serializers.SerializerMethodField()
    time_spent = serializers.SerializerMethodField()
    queue = serializers.SerializerMethodField()

    class Meta:
        model = Ticket
        # fields = '__all__'
        fields = ('ticket', 'id', 'priority', 'title', 'queue', 'status',
                  'created', 'due_date', 'assigned_to', 'row_class',
                  'time_spent')

    def get_queue(self, obj):
        return ({"title": obj.queue.title, "id": obj.queue.id})

    def get_ticket(self, obj):
        return (str(obj.id) + " " + obj.ticket)

    def get_status(self, obj):
        return (obj.get_status)

    def get_created(self, obj):
        return (humanize.naturaltime(obj.created))

    def get_due_date(self, obj):
        return (humanize.naturaltime(obj.due_date))

    def get_assigned_to(self, obj):
        if obj.assigned_to:
            if obj.assigned_to.first_name:
                return (obj.assigned_to.first_name)
            else:
                return (obj.assigned_to.email)
        else:
            return ("None")

    def get_time_spent(self, obj):
        return format_time_spent(obj.time_spent)

    def get_row_class(self, obj):
        return (obj.get_priority_css_class)