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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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# This file is part of Beremiz IDE

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#

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# Copyright (C) 2013: Laurent BESSARD

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# Copyright (C) 2017: Andrey Skvortsov

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# Copyright (C) 2025: Edouard TISSERANT

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#

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# See COPYING file for copyrights details.

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import os

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from POULibrary import POULibrary

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from py_ext.PythonFileCTNMixin import PythonFileCTNMixin

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import util.paths as paths

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pyext_python_lib_code = open(paths.AbsNeighbourFile(__file__, "py_ext_rt.py"), "r").read()

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class PythonLibrary(POULibrary):

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    def GetLibraryPath(self):

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        return paths.AbsNeighbourFile(__file__, "pous.xml")

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    def Generate_C(self, buildpath, varlist, IECCFLAGS):

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        plc_python_filepath = paths.AbsNeighbourFile(__file__, "plc_python.c")

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        plc_python_file = open(plc_python_filepath, 'r')

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        plc_python_code = plc_python_file.read()

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        plc_python_file.close()

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        python_eval_fb_list = []

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        for v in varlist:

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            if v["vartype"] == "FB" and v["type"] in ["PYTHON_EVAL",

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                                                      "PYTHON_POLL"]:

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                python_eval_fb_list.append(v)

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        python_eval_fb_count = max(1, len(python_eval_fb_list))

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        # prepare python code

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        plc_python_code = plc_python_code % {

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            "python_eval_fb_count": python_eval_fb_count}

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        Gen_Pythonfile_path = os.path.join(buildpath, "py_ext.c")

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        pythonfile = open(Gen_Pythonfile_path, 'w')

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        pythonfile.write(plc_python_code)

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        pythonfile.close()

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        runtimefile_path = os.path.join(buildpath, "runtime_00_pyext.py")

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        runtimefile = open(runtimefile_path, 'w')

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        runtimefile.write(pyext_python_lib_code)

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        runtimefile.close()

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        return ((["py_ext"], [(Gen_Pythonfile_path, IECCFLAGS)], True), "",

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                ("runtime_00_pyext.py", open(runtimefile_path, "rb")))

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class PythonFile(PythonFileCTNMixin):

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    def GetIconName(self):

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        return "Pyfile"