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import os

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from CFileEditor import CFileEditor

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from CodeFileTreeNode import CodeFile

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class CFile(CodeFile):

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    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>

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    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

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      <xsd:element name="CExtension">

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        <xsd:complexType>

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          <xsd:attribute name="CFLAGS" type="xsd:string" use="required"/>

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          <xsd:attribute name="LDFLAGS" type="xsd:string" use="required"/>

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        </xsd:complexType>

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      </xsd:element>

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    </xsd:schema>

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    """

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    EditorType = CFileEditor

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    def GetIconName(self):

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        return "Cfile"

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    def CodeFileName(self):

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        return os.path.join(self.CTNPath(), "cfile.xml")

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    def CTNGenerate_C(self, buildpath, locations):

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        """

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        Generate C code

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        @param current_location: Tupple containing confnode IEC location : %I0.0.4.5 => (0,0,4,5)

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        @param locations: List of complete variables locations \

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            [{"IEC_TYPE" : the IEC type (i.e. "INT", "STRING", ...)

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            "NAME" : name of the variable (generally "__IW0_1_2" style)

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            "DIR" : direction "Q","I" or "M"

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            "SIZE" : size "X", "B", "W", "D", "L"

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            "LOC" : tuple of interger for IEC location (0,1,2,...)

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            }, ...]

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        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND

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        """

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        current_location = self.GetCurrentLocation()

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        # define a unique name for the generated C file

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        location_str = "_".join(map(str, current_location))

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        text = "/* Code generated by Beremiz c_ext confnode */\n\n"

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        text += "#include <stdio.h>\n\n"

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        # Adding includes

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        text += "/* User includes */\n"

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        text += self.CodeFile.includes.gettext().strip()

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        text += "\n"

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        text += '#include "iec_types_all.h"\n\n'

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        # Adding variables

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        config = self.GetCTRoot().GetProjectConfigNames()[0]

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        text += "/* User variables reference */\n"

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        for variable in self.CodeFile.variables.variable:

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            var_infos = {

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                "name": variable.getname(),

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                "global": "%s__%s" % (config.upper(),

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                                      variable.getname().upper()),

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                "type": "__IEC_%s_t" % variable.gettype()}

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            text += "extern %(type)s %(global)s;\n" % var_infos

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            text += "#define %(name)s %(global)s.value\n" % var_infos

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        text += "\n"

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        # Adding user global variables and routines

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        text += "/* User internal user variables and routines */\n"

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        text += self.CodeFile.globals.gettext().strip()

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        text += "\n"

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        # Adding Beremiz confnode functions

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        text += "/* Beremiz confnode functions */\n"

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        text += "int __init_%s(int argc,char **argv)\n{\n"%location_str

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        text += self.CodeFile.initFunction.gettext().strip()

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        text += "  return 0;\n}\n\n"

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        text += "void __cleanup_%s(void)\n{\n"%location_str

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        text += self.CodeFile.cleanUpFunction.gettext().strip()

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        text += "\n}\n\n"

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        text += "void __retrieve_%s(void)\n{\n"%location_str

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        text += self.CodeFile.retrieveFunction.gettext().strip()

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        text += "\n}\n\n"

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        text += "void __publish_%s(void)\n{\n"%location_str

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        text += self.CodeFile.publishFunction.gettext().strip()

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        text += "\n}\n\n"

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        Gen_Cfile_path = os.path.join(buildpath, "CFile_%s.c"%location_str)

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        cfile = open(Gen_Cfile_path,'w')

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        cfile.write(text)

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        cfile.close()

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        matiec_flags = '"-I%s"'%os.path.abspath(self.GetCTRoot().GetIECLibPath())

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        return [(Gen_Cfile_path, str(self.CExtension.getCFLAGS() + matiec_flags))],str(self.CExtension.getLDFLAGS()),True

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