# pylint: disable=C0111,R0903

'''Displays the current date and time.

Parameters:
    * datetime.format: strftime()-compatible formatting string
    * datetime.locale: locale to use rather than the system default
'''

from __future__ import absolute_import
import datetime
import locale

import core.module
import core.widget
import core.input

class Module(core.module.Module):
    def __init__(self, config, theme):
        super().__init__(config, theme, core.widget.Widget(self.full_text))

        core.input.register(self, button=core.input.LEFT_MOUSE, cmd='calendar')
        self._fmt = self.parameter('format', self.default_format())
        l = locale.getdefaultlocale()
        if not l or l == (None, None):
            l = ('en_US', 'UTF-8')
        lcl = self.parameter('locale', '.'.join(l))
        try:
            locale.setlocale(locale.LC_TIME, lcl.split('.'))
        except Exception as e:
            locale.setlocale(locale.LC_TIME, ('en_US', 'UTF-8'))

    def default_format(self):
        return '%x %X'

    def full_text(self, widget):
        enc = locale.getpreferredencoding()
        retval = datetime.datetime.now().strftime(self._fmt)
        if hasattr(retval, 'decode'):
            return retval.decode(enc)
        return retval

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