from tclCommands.TclCommand import TclCommandSignaled

import collections


class TclCommandOpenProject(TclCommandSignaled):
    """
    Tcl shell command to open a FlatCAM project.
    """

    # array of all command aliases, to be able use  old names for backward compatibility (add_poly, add_polygon)
    aliases = ['open_project']

    description = '%s %s' % ("--", "Opens an FlatCAm project file, parse it and recreate all the objects.")

    # Dictionary of types from Tcl command, needs to be ordered.
    # For positional arguments
    arg_names = collections.OrderedDict([
        ('filename', str)
    ])

    # Dictionary of types from Tcl command, needs to be ordered.
    # For options like -optionname value
    option_types = collections.OrderedDict([

    ])

    # array of mandatory options for current Tcl command: required = {'name','outname'}
    required = ['filename']

    # structured help for current command, args needs to be ordered
    help = {
        'main': "Opens an FlatCAm project file, parse it and recreate all the objects.",
        'args': collections.OrderedDict([
            ('filename', 'Absolute path to file to open. Required.\n'
                         'WARNING: no spaces are allowed. If unsure enclose the entire path with quotes.'),
        ]),
        'examples': ['open_project D:\\my_project_file.FlatPrj',
                     'open_project "D:\\my_project_file with spaces in the name.FlatPrj"']
    }

    def execute(self, args, unnamed_args):
        """
        execute current TCL shell command

        :param args: array of known named arguments and options
        :param unnamed_args: array of other values which were passed into command
            without -somename and  we do not have them in known arg_names
        :return: None or exception
        """
        filename = args['filename']
        # if ' ' in filename:
        #     return "The absolute path to the project file contain spaces which is not allowed.\n" \
        #            "Please enclose the path within quotes."

        self.app.open_project(filename, cli=True, plot=False, from_tcl=True)