'''
Platzhalter WIP
- ausprogrammieren nach Bedarf
Geräteliste
 - wird regelmäßig aktualisiert

'''

import time
import struct

class Device():

    def __init__(self, address):
        #WIP
        #Felder können sich noch ändern!
        self.address = address
        self.instance = 0            # default 0
        self.sysinstance = 0         # used with bridged networks, default 0
        self.lastseen = time.time()
        self.uniqueid = None
        self.manufacturercode = None
        self.industrygroup = None
        self.name = None                # User defined device name
        self.product = None             # Product name
        self.productcode = None         # Product code
        self.devicefunction = None
        self.deviceclass = None
        self.serial = None
        self.modelvers = None 		# Hardware Version
        self.softvers = None            # Current Software Version
        self.n2kvers = None             # NMEA2000 Network Message Database Version
        self.certlevel = None           # NMEA2000 Certification Level
        self.loadequiv = None           # NMEA2000 LEN

        # Configuration Info
        self.instdesc1 = None
        self.instdesc2 = None
        self.manufinfo = None 

    def getName(self):
        # NAME errechnen aus den Claim-Daten
        # TODO Das hier ist noch fehlerhaft!
        data = bytearray()
        data.append((self.deviceclass << 4) | (self.devicefunction & 0x0f))
        data.extend(struct.pack('<L', self.uniqueid))
        data.extend(struct.pack('<L', self.manufacturercode))
        data.extend(struct.pack('<L', self.industrygroup))
        return data

    def __str__(self):
        out = f"Device: {self.address} : '{self.product}'\n"
        out += f"  Instance: {self.instance}\n"
        out += f"  Product Code: {self.productcode}\n"
        out += f"  Product: {self.product}\n"
        out += f"  Serial: {self.serial}\n"
        out += f"  Model Version: {self.modelvers}\n"
        out += f"  Software Version: {self.softvers}\n"
        out += f"  NMEA2000 Version: {self.n2kvers}\n"
        out += f"  Cert-Level: {self.certlevel}\n"
        out += f"  LEN: {self.loadequiv}"
        return out