'''
Copyright(c) 2011 Apogee Imaging Systems


@author: ltraynor
'''
import re
import pylibapogee as apg

def GetUsbDevices():
    f = apg.FindDeviceUsb()
    msg = f.Find()
    
    return ParseDeviceStr( msg )
    
    
def GetEthernetDevices():
    f = apg.FindDeviceEthernet()
    msg = f.Find( "192.168.0.255" )
    
    return ParseDeviceStr( msg )
    
def ParseDeviceStr(deviceStr):
    #MUST include the < in the grouping, so the regex
    #search functions below will find the last item in the
    #string
    deviceStrList = re.findall("<d>(.*?<)/d>", deviceStr)

    deviceDictList = []
    
    for device in deviceStrList:
        # 1 here, because the match above will
        # always pick up the < making the device
        # string len == 1
        if( 1 >= len(device) ):
            #nothing to parse move to the next 
            #item in the list
            continue
    
        devDict = {}
        mm = re.search("interface=(.*?)[,|<]", device)
        devDict["interface"] = mm.group(1)
        
        mmA = re.search("address=(.*?)[,|<]", device)
        
        if "ethernet" == devDict["interface"]:
            mmP = re.search("port=(.*?)[,|<]", device)
            devDict["address"] = mmA.group(1) + ":" + mmP.group(1)
        else:
            devDict["address"] = mmA.group(1)
            
        mm = re.search("id=(.*?)[,|<]", device)
        devDict["id"] = mm.group(1)  
        
        mm = re.search("firmwareRev=(.*?)[,|<]", device)
        devDict["firmwareRev"] = mm.group(1)
        
        mm = re.search("model=(.*?)[,|<]", device)
        devDict["model"] = mm.group(1) 
        
        mm = re.search("interfaceStatus=(.*?)[,|<]", device)
        status = mm.group(1).replace("\"","")
        devDict["interfaceStatus"] = status  
        
        if( len(devDict) != 6):
            #this device didn't contain the correct data
            #go to the next device
            continue
                
        devDict["camType"] = devDict["model"].split("-")[0]
        deviceDictList.append(devDict)
    
    return deviceDictList
    
def CreateAndConnectCam( devDict ):
    cam = None
    if( "AltaU" == devDict["camType"] or
       "AltaE" == devDict["camType"] ):
        cam = apg.Alta()
    
    if( "Ascent" == devDict["camType"] ):
        cam = apg.Ascent()

    if( "AltaF" == devDict["camType"]  ):
        cam = apg.AltaF()
    
    cam.OpenConnection( devDict["interface"],
                       devDict["address"],
                       int(devDict["firmwareRev"],16),
                       int(devDict["id"],16) )
    
    cam.Init()
        
    return cam