import os, sys
base_folder = os.path.split(sys.path[0])[0]
CanFestivalPath = os.path.join(base_folder, "CanFestival-3")
sys.path.append(os.path.join(CanFestivalPath, "objdictgen"))

from nodelist import NodeList
from nodemanager import NodeManager
import config_utils, gen_cfile, eds_utils
from networkedit import networkedit
from objdictedit import objdictedit
import canfestival_config
from plugger import PlugTemplate
from commondialogs import CreateNodeDialog
import wx

from gnosis.xml.pickle import *
from gnosis.xml.pickle.util import setParanoia
setParanoia(0)

#--------------------------------------------------
#                    SLAVE
#--------------------------------------------------

class _SlavePlug(NodeManager):
    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <xsd:element name="CanFestivalSlaveNode">
        <xsd:complexType>
          <xsd:attribute name="CAN_Device" type="xsd:string" use="required"/>
          <xsd:attribute name="CAN_Baudrate" type="xsd:string" use="required"/>
          <xsd:attribute name="NodeId" type="xsd:string" use="required"/>
          <xsd:attribute name="Sync_Align" type="xsd:integer" use="optional" default="0"/>
          <xsd:attribute name="Sync_Align_Ratio" use="optional" default="50">
            <xsd:simpleType>
                <xsd:restriction base="xsd:integer">
                    <xsd:minInclusive value="1"/>
                    <xsd:maxInclusive value="99"/>
                </xsd:restriction>
            </xsd:simpleType>
          </xsd:attribute>
        </xsd:complexType>
      </xsd:element>
    </xsd:schema>
    """

    def GetSlaveODPath(self):
        return os.path.join(self.PlugPath(), 'slave.od')

    def __init__(self):
        # TODO change netname when name change
        NodeManager.__init__(self)
        odfilepath = self.GetSlaveODPath()
        if(os.path.isfile(odfilepath)):
            self.OpenFileInCurrent(odfilepath)
        else:
            self.FilePath = ""
            dialog = CreateNodeDialog(None, wx.OK)
            dialog.Type.Enable(False)
            dialog.GenSYNC.Enable(False)
            if dialog.ShowModal() == wx.ID_OK:
                name, id, nodetype, description = dialog.GetValues()
                profile, filepath = dialog.GetProfile()
                NMT = dialog.GetNMTManagement()
                options = dialog.GetOptions()
                self.CreateNewNode(name,       # Name - will be changed at build time
                                   id,         # NodeID - will be changed at build time
                                   "slave",    # Type
                                   description,# description 
                                   profile,    # profile
                                   filepath,   # prfile filepath
                                   NMT,        # NMT
                                   options)     # options
            else:
                self.CreateNewNode("SlaveNode",  # Name - will be changed at build time
                                   0x00,         # NodeID - will be changed at build time
                                   "slave",      # Type
                                   "",           # description 
                                   "None",       # profile
                                   "", # prfile filepath
                                   "heartbeat",  # NMT
                                   [])           # options
            dialog.Destroy()
    _View = None
    def _OpenView(self):
        if not self._View:
            def _onclose():
                self._View = None
            def _onsave():
                self.GetPlugRoot().SaveProject()
            self._View = objdictedit(self.GetPlugRoot().AppFrame, self)
            # TODO redefine BusId when IEC channel change
            self._View.SetBusId(self.GetCurrentLocation())
            self._View._onclose = _onclose
            self._View._onsave = _onsave
            self._View.Show()

    PluginMethods = [
        {"bitmap" : os.path.join("images", "NetworkEdit"),
         "name" : "Edit slave", 
         "tooltip" : "Edit CanOpen slave with ObjdictEdit",
         "method" : "_OpenView"},
    ]

    def OnPlugClose(self):
        if self._View:
            self._View.Close()

    def PlugTestModified(self):
        return self.ChangesToSave or self.OneFileHasChanged()
        
    def OnPlugSave(self):
        return self.SaveCurrentInFile(self.GetSlaveODPath())

    def PlugGenerate_C(self, buildpath, locations):
        """
        Generate C code
        @param current_location: Tupple containing plugin IEC location : %I0.0.4.5 => (0,0,4,5)
        @param locations: List of complete variables locations \
            [{"IEC_TYPE" : the IEC type (i.e. "INT", "STRING", ...)
            "NAME" : name of the variable (generally "__IW0_1_2" style)
            "DIR" : direction "Q","I" or "M"
            "SIZE" : size "X", "B", "W", "D", "L"
            "LOC" : tuple of interger for IEC location (0,1,2,...)
            }, ...]
        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND
        """
        current_location = self.GetCurrentLocation()
        # define a unique name for the generated C file
        prefix = "_".join(map(str, current_location))
        Gen_OD_path = os.path.join(buildpath, "OD_%s.c"%prefix )
        # Create a new copy of the model
        slave = self.GetCurrentNodeCopy()
        slave.SetNodeName("OD_%s"%prefix)
        # allow access to local OD from Slave PLC
        pointers = config_utils.LocalODPointers(locations, current_location, slave)
        res = gen_cfile.GenerateFile(Gen_OD_path, slave, pointers)
        if res :
            raise Exception, res
        res = eds_utils.GenerateEDSFile(os.path.join(buildpath, "Slave_%s.eds"%prefix), slave)
        if res :
            raise Exception, res
        return [(Gen_OD_path,canfestival_config.getCFLAGS(CanFestivalPath))],"",False

#--------------------------------------------------
#                    MASTER
#--------------------------------------------------

class _NodeListPlug(NodeList):
    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <xsd:element name="CanFestivalNode">
        <xsd:complexType>
          <xsd:attribute name="CAN_Device" type="xsd:string" use="required"/>
          <xsd:attribute name="CAN_Baudrate" type="xsd:string" use="required"/>
          <xsd:attribute name="NodeId" type="xsd:string" use="required"/>
          <xsd:attribute name="Sync_TPDOs" type="xsd:boolean" use="optional" default="true"/>
        </xsd:complexType>
      </xsd:element>
    </xsd:schema>
    """

    def __init__(self):
        manager = NodeManager()
        # TODO change netname when name change
        NodeList.__init__(self, manager, self.BaseParams.getName())
        self.LoadProject(self.PlugPath())

    _View = None
    def _OpenView(self):
        if not self._View:
            def _onclose():
                self._View = None
            def _onsave():
                self.GetPlugRoot().SaveProject()
            self._View = networkedit(self.GetPlugRoot().AppFrame, self)
            # TODO redefine BusId when IEC channel change
            self._View.SetBusId(self.GetCurrentLocation())
            self._View._onclose = _onclose
            self._View._onsave = _onsave
            self._View.Show()

    def _ShowMasterGenerated(self):
        buildpath = self._getBuildPath()
        # Eventually create build dir
        if not os.path.exists(buildpath):
            self.logger.write_error("Error: No PLC built\n")
            return
        
        masterpath = os.path.join(buildpath, "MasterGenerated.od")
        if not os.path.exists(masterpath):
            self.logger.write_error("Error: No Master generated\n")
            return
        
        new_dialog = objdictedit(None, filesOpen=[masterpath])
        new_dialog.Show()

    PluginMethods = [
        {"bitmap" : os.path.join("images", "NetworkEdit"),
         "name" : "Edit network", 
         "tooltip" : "Edit CanOpen Network with NetworkEdit",
         "method" : "_OpenView"},
        {"name" : "Show Master", 
         "tooltip" : "Show Master generated by config_utils",
         "method" : "_ShowMasterGenerated"}
    ]

    def OnPlugClose(self):
        if self._View:
            self._View.Close()

    def PlugTestModified(self):
        return self.ChangesToSave or self.HasChanged()
        
    def OnPlugSave(self):
        self.SetRoot(self.PlugPath())
        return self.SaveProject() is None

    def PlugGenerate_C(self, buildpath, locations):
        """
        Generate C code
        @param current_location: Tupple containing plugin IEC location : %I0.0.4.5 => (0,0,4,5)
        @param locations: List of complete variables locations \
            [{"IEC_TYPE" : the IEC type (i.e. "INT", "STRING", ...)
            "NAME" : name of the variable (generally "__IW0_1_2" style)
            "DIR" : direction "Q","I" or "M"
            "SIZE" : size "X", "B", "W", "D", "L"
            "LOC" : tuple of interger for IEC location (0,1,2,...)
            }, ...]
        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND
        """
        current_location = self.GetCurrentLocation()
        # define a unique name for the generated C file
        prefix = "_".join(map(str, current_location))
        Gen_OD_path = os.path.join(buildpath, "OD_%s.c"%prefix )
        # Create a new copy of the model with DCF loaded with PDO mappings for desired location
        master, pointers = config_utils.GenerateConciseDCF(locations, current_location, self, self.CanFestivalNode.getSync_TPDOs(),"OD_%s"%prefix)
        # allow access to local OD from Master PLC
        pointers.update(config_utils.LocalODPointers(locations, current_location, master))
        # Do generate C file.
        res = gen_cfile.GenerateFile(Gen_OD_path, master, pointers)
        if res :
            raise Exception, res
        
        file = open(os.path.join(buildpath, "MasterGenerated.od"), "w")
        dump(master, file)
        file.close()
        
        return [(Gen_OD_path,canfestival_config.getCFLAGS(CanFestivalPath))],"",False
    
class RootClass:
    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <xsd:element name="CanFestivalInstance">
        <xsd:complexType>
          <xsd:attribute name="CAN_Driver" type="xsd:string" use="required"/>
          <xsd:attribute name="Debug_mode" type="xsd:boolean" use="optional" default="false"/>
        </xsd:complexType>
      </xsd:element>
    </xsd:schema>
    """
    PlugChildsTypes = [("CanOpenNode",_NodeListPlug, "CanOpen Master"),
                       ("CanOpenSlave",_SlavePlug, "CanOpen Slave")]
    def GetParamsAttributes(self, path = None):
        infos = PlugTemplate.GetParamsAttributes(self, path = None)
        for element in infos:
            if element["name"] == "CanFestivalInstance":
                for child in element["children"]:
                    if child["name"] == "CAN_Driver":
                        DLL_LIST= getattr(canfestival_config,"DLL_LIST",None)
                        if DLL_LIST is not None:
                            child["type"] = DLL_LIST
                        return infos    
        return infos

    def PlugGenerate_C(self, buildpath, locations):
        
        format_dict = {"locstr" : "_".join(map(str,self.GetCurrentLocation())),
                       "candriver" : self.CanFestivalInstance.getCAN_Driver(),
                       "nodes_includes" : "",
                       "board_decls" : "",
                       "nodes_init" : "",
                       "nodes_open" : "",
                       "nodes_close" : "",
                       "nodes_send_sync" : "",
                       "nodes_proceed_sync" : "",
                       "slavebootups" : "",
                       "slavebootup_register" : "",
                       "post_sync" : "",
                       "post_sync_register" : "",
                       }
        for child in self.IECSortedChilds():
            childlocstr = "_".join(map(str,child.GetCurrentLocation()))
            nodename = "OD_%s" % childlocstr
            
            # Try to get Slave Node
            child_data = getattr(child, "CanFestivalSlaveNode", None)
            if child_data is None:
                # Not a slave -> master
                child_data = getattr(child, "CanFestivalNode")
                # Apply sync setting
                format_dict["nodes_init"] += 'NODE_MASTER_INIT(%s, %s)\n    '%(
                       nodename,
                       child_data.getNodeId())
                if child_data.getSync_TPDOs():
                    format_dict["nodes_send_sync"] += 'NODE_SEND_SYNC(%s)\n    '%(nodename)
                    format_dict["nodes_proceed_sync"] += 'NODE_PROCEED_SYNC(%s)\n    '%(nodename)

                # initialize and declare node boot status variables for post_SlaveBootup lookup
                SlaveIDs = child.GetSlaveIDs()
                for id in SlaveIDs:
                    format_dict["slavebootups"] += (
                    "int %s_slave_%d_booted = 0;\n"%(nodename, id))
                # define post_SlaveBootup lookup functions
                format_dict["slavebootups"] += (
                    "static void %s_post_SlaveBootup(CO_Data* d, UNS8 nodeId){\n"%(nodename)+
                    "    switch(nodeId){\n")
                # one case per declared node, mark node as booted
                for id in SlaveIDs:
                    format_dict["slavebootups"] += (
                    "        case %d:\n"%(id)+
                    "            %s_slave_%d_booted = 1;\n"%(nodename, id)+
                    "            break;\n")
                format_dict["slavebootups"] += (
                    "        default:\n"+
                    "            break;\n"+
                    "    }\n"+
                    "    if( ")
                # expression to test if all declared nodes booted
                format_dict["slavebootups"] += " && ".join(["%s_slave_%d_booted"%(nodename, id) for id in SlaveIDs])
                format_dict["slavebootups"] += " )\n" + (
                    "        Master_post_SlaveBootup(d,nodeId);\n"+
                    "}\n")
                # register previously declared func as post_SlaveBootup callback for that node
                format_dict["slavebootup_register"] += (
                    "%s_Data.post_SlaveBootup = %s_post_SlaveBootup;\n"%(nodename,nodename))
            else:
                # Slave node
                align = child_data.getSync_Align()
                align_ratio=child_data.getSync_Align_Ratio()
                if align > 0:
                    format_dict["post_sync"] += (
                        "static int %s_CalCount = 0;\n"%(nodename)+
                        "static void %s_post_sync(CO_Data* d){\n"%(nodename)+
                        "    if(%s_CalCount < %d){\n"%(nodename, align)+
                        "        %s_CalCount++;\n"%(nodename)+
                        "        align_tick(-1);\n"+
                        "    }else{\n"+
                        "        align_tick(%d);\n"%(align_ratio)+
                        "    }\n"+
                        "}\n")
                    format_dict["post_sync_register"] += (
                        "%s_Data.post_sync = %s_post_sync;\n"%(nodename,nodename))
                format_dict["nodes_init"] += 'NODE_SLAVE_INIT(%s, %s)\n    '%(
                       nodename,
                       child_data.getNodeId())
    
            # Include generated OD headers
            format_dict["nodes_includes"] += '#include "%s.h"\n'%(nodename)
            # Declare CAN channels according user filled config
            format_dict["board_decls"] += 'BOARD_DECL(%s, "%s", "%s")\n'%(
                   nodename,
                   child_data.getCAN_Device(),
                   child_data.getCAN_Baudrate())
            format_dict["nodes_open"] += 'NODE_OPEN(%s)\n    '%(nodename)
            format_dict["nodes_close"] += 'NODE_CLOSE(%s)\n    '%(nodename)
        
        if sys.platform == 'win32':
            if self.CanFestivalInstance.getDebug_mode() and os.path.isfile(os.path.join("%s"%(format_dict["candriver"] + '_DEBUG.dll'))):
                    format_dict["candriver"] += '_DEBUG.dll'
            else:
                format_dict["candriver"] += '.dll'
        
        filename = os.path.join(os.path.split(__file__)[0],"cf_runtime.c")
        cf_main = open(filename).read() % format_dict
        cf_main_path = os.path.join(buildpath, "CF_%(locstr)s.c"%format_dict)
        f = open(cf_main_path,'w')
        f.write(cf_main)
        f.close()
        
        return [(cf_main_path, canfestival_config.getCFLAGS(CanFestivalPath))],canfestival_config.getLDFLAGS(CanFestivalPath), True