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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, a Integrated Development Environment for

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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

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#

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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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# Copyright (C) 2017: Andrey Skvortsov

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#

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# See COPYING file for copyrights details.

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#

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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from os.path import join, split, realpath

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import util.paths as paths

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sd = paths.AbsDir(__file__)

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# Override gettext _ in this module

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# since we just want string to be added to dictionnary

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# but translation should happen here

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_ = lambda x: x

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LANGUAGES = ["IL", "ST", "FBD", "LD", "SFC"]

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LOCATIONDATATYPES = {"X": ["BOOL"],

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                     "B": ["SINT", "USINT", "BYTE", "STRING"],

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                     "W": ["INT", "UINT", "WORD", "WSTRING"],

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                     "D": ["DINT", "UDINT", "REAL", "DWORD"],

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                     "L": ["LINT", "ULINT", "LREAL", "LWORD"]}

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#-------------------------------------------------------------------------------

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#                        Function Block Types definitions

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#-------------------------------------------------------------------------------

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StdTC6Libs = [(_("Standard function blocks"),   join(sd, "Standard_Function_Blocks.xml")),

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              (_("Additional function blocks"), join(sd, "Additional_Function_Blocks.xml"))]

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StdFuncsCSV = join(sd, "iec_std.csv")

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def GetBlockInfos(pou):

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    infos = pou.getblockInfos()

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    infos["inputs"] = [

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        (var_name, var_type, "rising")

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        if var_name in ["CU", "CD"]

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        else (var_name, var_type, var_modifier)

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        for var_name, var_type, var_modifier in infos["inputs"]]

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    return infos

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#-------------------------------------------------------------------------------

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#                           Data Types definitions

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#-------------------------------------------------------------------------------

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"""

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Ordored list of common data types defined in the IEC 61131-3

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Each type is associated to his direct parent type. It defines then a hierarchy

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between type that permits to make a comparison of two types

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"""

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TypeHierarchy_list = [

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    ("ANY", None),

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    ("ANY_DERIVED", "ANY"),

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    ("ANY_ELEMENTARY", "ANY"),

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    ("ANY_MAGNITUDE", "ANY_ELEMENTARY"),

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    ("ANY_BIT", "ANY_ELEMENTARY"),

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    ("ANY_NBIT", "ANY_BIT"),

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    ("ANY_STRING", "ANY_ELEMENTARY"),

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    ("ANY_DATE", "ANY_ELEMENTARY"),

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    ("ANY_NUM", "ANY_MAGNITUDE"),

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    ("ANY_REAL", "ANY_NUM"),

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    ("ANY_INT", "ANY_NUM"),

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    ("ANY_SINT", "ANY_INT"),

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    ("ANY_UINT", "ANY_INT"),

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    ("BOOL", "ANY_BIT"),

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    ("SINT", "ANY_SINT"),

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    ("INT", "ANY_SINT"),

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    ("DINT", "ANY_SINT"),

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    ("LINT", "ANY_SINT"),

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    ("USINT", "ANY_UINT"),

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    ("UINT", "ANY_UINT"),

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    ("UDINT", "ANY_UINT"),

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    ("ULINT", "ANY_UINT"),

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    ("REAL", "ANY_REAL"),

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    ("LREAL", "ANY_REAL"),

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    ("TIME", "ANY_MAGNITUDE"),

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    ("DATE", "ANY_DATE"),

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    ("TOD", "ANY_DATE"),

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    ("DT", "ANY_DATE"),

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    ("STRING", "ANY_STRING"),

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    ("BYTE", "ANY_NBIT"),

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    ("WORD", "ANY_NBIT"),

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    ("DWORD", "ANY_NBIT"),

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    ("LWORD", "ANY_NBIT")

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    #("WSTRING", "ANY_STRING") # TODO

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]

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DefaultType = "DINT"

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DataTypeRange_list = [

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    ("SINT",  (-2**7,  2**7 - 1)),

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    ("INT",   (-2**15, 2**15 - 1)),

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    ("DINT",  (-2**31, 2**31 - 1)),

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    ("LINT",  (-2**31, 2**31 - 1)),

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    ("USINT", (0,      2**8 - 1)),

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    ("UINT",  (0,      2**16 - 1)),

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    ("UDINT", (0,      2**31 - 1)),

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    ("ULINT", (0,      2**31 - 1))

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]

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ANY_TO_ANY_FILTERS = {

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    "ANY_TO_ANY": [

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        # simple type conv are let as C cast

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        (("ANY_INT", "ANY_BIT"), ("ANY_NUM", "ANY_BIT")),

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        (("ANY_REAL",), ("ANY_REAL",)),

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        # REAL_TO_INT

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        (("ANY_REAL",), ("ANY_SINT",)),

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        (("ANY_REAL",), ("ANY_UINT",)),

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        (("ANY_REAL",), ("ANY_BIT",)),

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        # TO_TIME

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        (("ANY_INT", "ANY_BIT"), ("ANY_DATE", "TIME")),

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        (("ANY_REAL",),          ("ANY_DATE", "TIME")),

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        (("ANY_STRING",),        ("ANY_DATE", "TIME")),

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        # FROM_TIME

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        (("ANY_DATE", "TIME"), ("ANY_REAL",)),

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        (("ANY_DATE", "TIME"), ("ANY_INT", "ANY_NBIT")),

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        (("TIME",), ("ANY_STRING",)),

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        (("DATE",), ("ANY_STRING",)),

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        (("TOD",),  ("ANY_STRING",)),

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        (("DT",),   ("ANY_STRING",)),

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        # TO_STRING

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        (("BOOL",),     ("ANY_STRING",)),

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        (("ANY_BIT",),  ("ANY_STRING",)),

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        (("ANY_REAL",), ("ANY_STRING",)),

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        (("ANY_SINT",), ("ANY_STRING",)),

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        (("ANY_UINT",), ("ANY_STRING",)),

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        # FROM_STRING

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        (("ANY_STRING",), ("BOOL",)),

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        (("ANY_STRING",), ("ANY_BIT",)),

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        (("ANY_STRING",), ("ANY_SINT",)),

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        (("ANY_STRING",), ("ANY_UINT",)),

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        (("ANY_STRING",), ("ANY_REAL",))

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    ],

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    "BCD_TO_ANY": [

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        (("BYTE",),  ("USINT",)),

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        (("WORD",),  ("UINT",)),

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        (("DWORD",), ("UDINT",)),

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        (("LWORD",), ("ULINT",))

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    ],

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    "ANY_TO_BCD": [

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        (("USINT",), ("BYTE",)),

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        (("UINT",),  ("WORD",)),

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        (("UDINT",), ("DWORD",)),

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        (("ULINT",), ("LWORD",))

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    ]

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}

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# remove gettext override

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del _