from tclCommands.TclCommand import TclCommandSignaled

import collections


class TclCommandIsolate(TclCommandSignaled):
    """
    Tcl shell command to Creates isolation routing geometry for the given Gerber.

    example:
        set_sys units MM
        new
        open_gerber tests/gerber_files/simple1.gbr -outname margin
        isolate margin -dia 3
        cncjob margin_iso
    """

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

    description = '%s %s' % ("--", "Creates isolation routing Geometry for the specified Gerber object.")

    # dictionary of types from Tcl command, needs to be ordered
    arg_names = collections.OrderedDict([
        ('name', str)
    ])

    # dictionary of types from Tcl command, needs to be ordered , this  is  for options  like -optionname value
    option_types = collections.OrderedDict([
        ('dia', float),
        ('passes', int),
        ('overlap', float),
        ('combine', str),
        ('outname', str),
        ('follow', str),
        ('iso_type', int)

    ])

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

    # structured help for current command, args needs to be ordered
    help = {
        'main': "Creates isolation routing Geometry for the specified Gerber object.",
        'args': collections.OrderedDict([
            ('name', 'Name of the source object. Required.'),
            ('dia', 'Tool diameter.'),
            ('passes', 'Passes of tool width.'),
            ('overlap', 'Percentage of tool diameter to overlap current pass over previous pass. Float [0, 99.9999]\n'
                        'E.g: for a 25% from tool diameter overlap use -overlap 25'),
            ('combine', 'Combine all passes into one geometry. Can be True (1) or False (0)'),
            ('outname', 'Name of the resulting Geometry object.'),
            ('follow', 'Create a Geometry that follows the Gerber path. Can be True (1) or False (0).'),
            ('iso_type', 'A value of 0 will isolate exteriors, a value of 1 will isolate interiors '
                         'and a value of 2 will do full isolation.')
        ]),
        'examples': ['isolate my_geo -dia 0.1 -passes 2 -overlap 10 -combine True -iso_type 2 -outname out_geo']
    }

    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
        """

        name = args['name']

        if 'outname' not in args:
            args['outname'] = name + "_iso"

        # if 'timeout' in args:
        #     timeout = args['timeout']
        # else:
        #     timeout = 10000

        if 'follow' not in args:
            args['follow'] = None

        # evaluate this parameter so True, False, 0 and 1 works
        if 'combine' in args:
            try:
                par = args['combine'].capitalize()
            except AttributeError:
                par = args['combine']
            args['combine'] = bool(eval(par))
        else:
            args['combine'] = bool(eval(self.app.defaults["gerber_combine_passes"]))

        obj = self.app.collection.get_by_name(name)
        if obj is None:
            self.raise_tcl_error("Object not found: %s" % name)

        if obj.kind != 'gerber':
            self.raise_tcl_error('Expected GerberObject, got %s %s.' % (name, type(obj)))

        del args['name']
        obj.isolate(plot=False, **args)