# This file is part of dnmgmt, a number resource management system
# Licensed under GNU General Public License v3 or later
# Written by Sebastian Lohff (seba@someserver.de)

from django.db import models
from django.urls import reverse

from whoisdb.models import Maintainer

class Request(models.Model):
    STATE_OPEN = "OPEN"
    STATE_RESOLVED = "RESOLVED"
    STATE_REJECTED = "REJECTED"
    STATES = (
        (STATE_OPEN, 'Open'),
        (STATE_RESOLVED, 'Resolved'),
        (STATE_REJECTED, 'Rejected'),
    )

    # request goes to mnt?
    subject = models.CharField(max_length=200)

    status = models.CharField(max_length=16, choices=STATES)

    applicant = models.ForeignKey(Maintainer)
    provider = models.ForeignKey(Maintainer, related_name='requestfrom_set')

    requestResources = models.TextField()
    grantedResources = models.TextField()

    created = models.DateTimeField(auto_now_add=True)
    lastAction = models.DateTimeField(auto_now_add=True)

    def get_absolute_url(self):
        return reverse("rrequests:show", args=(self.pk,))

    def __str__(self):
        return "(%s -> %s) [%s] %s" % (self.applicant, self.provider, self.status, self.subject)

    def getLastActionBy(self):
        msgs = self.requestmessage_set.order_by("-created")

        if msgs.count() > 0:
            return msgs[0].creator
        else:
            return None


class RequestMessage(models.Model):
    request = models.ForeignKey(Request)

    statusChanged = models.CharField(max_length=16, choices=Request.STATES, default=None, null=True, blank=True)

    creator = models.ForeignKey(Maintainer)
    message = models.TextField()
    created = models.DateTimeField(auto_now_add=True)