from django.db import models
from django.conf import settings
import uuid

def getRandom():
    return str(uuid.uuid4().hex)

class Organization(models.Model):
    name = models.CharField("Organization Name", max_length=300)
    users = models.ManyToManyField(settings.AUTH_USER_MODEL)
    userlimit = models.IntegerField("User Limit", null=True, blank=True)

    def __str__(self):
        return self.name

    def orgausers(self):
        return self.users.filter(is_superuser=False)

class Network(models.Model):
    name = models.CharField("Common Name", max_length=64, blank=True, null=True)
    extip = models.CharField("External/Public IP", max_length=15, unique=True)
    intip = models.CharField("Internal/Private IP", max_length=15, unique=True)
    organization = models.ManyToManyField(Organization)

    def __str__(self):
        return ("%s" % self.intip + (" (%s)" % self.name if self.name else ""))

class Model(models.Model):
    name = models.CharField("Model Name", max_length=100, unique=True)
    extname = models.CharField("Manufacturer Model Name", max_length=100)
    config = models.TextField("OpenWRT Compile Config", blank=True, null=True)
    firmware = models.DateTimeField("Firmware Modification Date", auto_now=True)
    wwan = models.BooleanField("Supports WWAN (External WiFi)", default=False)

    def __str__(self):
        return self.name

class Wifi(models.Model):
    serial = models.CharField("Device Serial Number", max_length=12, unique=True)
    organization = models.ForeignKey(Organization, on_delete=models.CASCADE)
    ssid = models.CharField("WiFi SSID", max_length=32)
    bssid = models.CharField("WiFi BSSID", max_length=64, blank=True, null=True)
    key = models.CharField("WiFi key", max_length=32)
    ip = models.GenericIPAddressField("Configuration IP", protocol="ipv4", blank=True, null=True)
    user = models.CharField("Configuration User Name", max_length=32, blank=True, null=True)
    password = models.CharField("Configuration Password", max_length=32, blank=True, null=True)

    def __str__(this):
        return "%s (%s)" % (this.serial, this.ssid)

class Device(models.Model):
    serial = models.CharField("Device Serial Number", max_length=12, unique=True)
    name = models.CharField("Common Name", max_length=100, default="", blank=True, null=True)
    model = models.ForeignKey(Model, on_delete=models.CASCADE)
    organization = models.ForeignKey(Organization, on_delete=models.CASCADE)
    network = models.ForeignKey(Network, on_delete=models.SET_NULL, blank=True, null=True)
    wifi = models.ManyToManyField(Wifi, blank=True)
    curip = models.GenericIPAddressField("Current IP Address", protocol="ipv4", blank=True, null=True)
    lasttime = models.DateTimeField("Last Received IP", blank=True, null=True, editable=False)
    lastbeat = models.DateTimeField("Last Received Timestamp", blank=True, null=True, editable=False)
    secret = models.CharField("Secret", default=getRandom, max_length=128)
    password = models.CharField("Device Password", default=getRandom, max_length=128)
    vpnconfig = models.TextField("VPN Configuration", blank=True, null=True, editable=False)
    firmware = models.DateTimeField("Firmware Creation Time", blank=True, null=True, editable=False)
    update = models.BooleanField("Trigger Firmware Update", default=False)
    reboot = models.BooleanField("Trigger Reboot", default=False)
    changed = models.DateTimeField("Last Change of Device Config", auto_now_add=True)
    wireless = models.DateTimeField("Last Update of Wireless Config", blank=True, null=True, editable=False)
    ssid = models.CharField("Broadcast SSID", max_length=32, blank=True, null=True)
    key = models.CharField("Broadcast WPA2 Key", max_length=64, blank=True, null=True)

    def __str__(self):
        return "%s%s" % (self.serial, " (%s)" % self.ssid if self.ssid else "")

class DeviceLog(models.Model):
    ADD = 0
    REMOVE = 1
    NAME = 2
    NET = 3
    REBOOT = 4
    UPDATE = 5
    STATUS = 6
    INTERNALIP = 7
    WIFI = 8
    ORGA = 9

    ACTION_CHOICES = (
            (ADD, "ADD"),
            (REMOVE, "REMOVE"),
            (NAME, "NAME"),
            (NET, "NET"),
            (REBOOT, "REBOOT"),
            (UPDATE, "UPDATE"),
            (STATUS, "STATUS"),
            (INTERNALIP, "INTERNALIP"),
            (WIFI, "WIFI"),
            (ORGA, "ORGA")
            )

    objid = models.CharField("Device ID", max_length=64)
    user = models.CharField("User Name", max_length=128, null=True)
    date = models.DateTimeField("Action Date", auto_now_add=True)
    action = models.IntegerField("Action", choices=ACTION_CHOICES)
    oldvalue = models.CharField("Old Value", max_length=256, blank=True, null=True)
    newvalue = models.CharField("New Value", max_length=256, blank=True, null=True)

class UserLog(models.Model):
    ADD = 0
    REMOVE = 1
    NAME = 2
    MAIL = 3
    STAFF = 4
    SUPERUSER = 5
    ORGA = 6

    ACTION_CHOICES = (
            (ADD, "ADD"),
            (REMOVE, "REMOVE"),
            (NAME, "NAME"),
            (MAIL, "MAIL"),
            (STAFF, "STAFF"),
            (SUPERUSER, "SUPERUSER"),
            (ORGA, "ORGA")
            )

    objid = models.CharField("Target User Name", max_length=64)
    user = models.CharField("Source User Name", max_length=128, null=True)
    date = models.DateTimeField("Action Date", auto_now_add=True)
    action = models.IntegerField("Action", choices=ACTION_CHOICES)
    oldvalue = models.CharField("Old Value", max_length=256, blank=True, null=True)
    newvalue = models.CharField("New Value", max_length=256, blank=True, null=True)

class WifiLog(models.Model):
    ADD = 0
    REMOVE = 1
    NAME = 2
    SSID = 3
    KEY = 4
    ORGA = 5
    
    ACTION_CHOICES = (
            (ADD, "ADD"),
            (REMOVE, "REMOVE"),
            (NAME, "NAME"),
            (SSID, "SSID"),
            (KEY, "KEY"),
            (ORGA, "ORGA")
            )

    objid = models.CharField("Wifi Name", max_length=64)
    user = models.CharField("User Name", max_length=128, null=True)
    date = models.DateTimeField("Action Date", auto_now_add=True)
    action = models.IntegerField("Action", choices=ACTION_CHOICES)
    oldvalue = models.CharField("Old Value", max_length=256, blank=True, null=True)
    newvalue = models.CharField("New Value", max_length=256, blank=True, null=True)

class Notification(models.Model):
    NOTICE = 0
    ALERT = 1
    EMERGENCY = 2

    STATUS_CHOICES = (
            (NOTICE, "NOTICE"),
            (ALERT, "ALERT"),
            (EMERGENCY, "EMERGENCY")
            )

    status = models.IntegerField("Status", choices=STATUS_CHOICES)
    text = models.CharField("Notification Text", max_length=1024)
    expiry = models.DateTimeField("Notification Expiry", null=True, blank=True)
    on_login = models.BooleanField("Display Notification on Login Screen", default=False)

class UserStatus(models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    last_action = models.DateTimeField(null=True, blank=True)
    orga = models.ForeignKey(Organization, on_delete=models.SET_NULL, null=True)