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from LPCProto import *

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class LPCBootProto(LPCProto):

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    def HandleTransaction(self, transaction):

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        self.TransactionLock.acquire()

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        try:

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            transaction.SetPseudoFile(self.serialPort)

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            res = transaction.ExchangeData()

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        finally:

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            self.TransactionLock.release()

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        return "Stopped", res

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class LPCBootTransaction:

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    def __init__(self, optdata = ""):

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        self.OptData = optdata

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        self.pseudofile = None

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    def SetPseudoFile(self, pseudofile):

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        self.pseudofile = pseudofile

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    def ExchangeData(self): 

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        self.pseudofile.write(self.OptData)

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        return map(lambda x:self.pseudofile.readline(), xrange(self.expectedlines))

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class KEEPBOOTINGTransaction(LPCBootTransaction):

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    def __init__(self):

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        self.expectedlines = 2

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        LPCBootTransaction.__init__(self, "md5\n")

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class STARTTransaction(LPCBootTransaction):

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    def __init__(self):

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        self.expectedlines = 0

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        LPCBootTransaction.__init__(self, "go\n")

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class CHECKMD5Transaction(LPCBootTransaction):

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    def __init__(self, md5ref):

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        self.expectedlines = 5 

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        LPCBootTransaction.__init__(self, md5ref+"md5\n")

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class LOADTransaction(LPCBootTransaction):

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    def __init__(self, data, PLCprint):

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        self.PLCprint = PLCprint

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        LPCBootTransaction.__init__(self, data)

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    def ExchangeData(self):

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        #file("fw.bin","w").write(self.OptData)

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        data = self.OptData

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        loptdata = len(self.OptData)

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        count=0

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        #self.PLCprint("%dkB:" % (loptdata/1024))

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        while len(data)>0:

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            res = self.pseudofile.write(data[:loptdata/100])

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            data = data[res:]

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            count += 1

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            if count % 10 == 0 :

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                self.PLCprint("%d%%" % count)

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            else :

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                self.PLCprint(".")

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        self.PLCprint("\n")

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        return True

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if __name__ == "__main__":

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    __builtins__.BMZ_DBG = True

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    TestConnection = LPCBootProto(2,115200,1200)

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    mystr=file("fw.bin").read()

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    def mylog(blah):

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        print blah,

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    TestConnection.HandleTransaction(LOADTransaction(mystr, mylog))