from datetime import datetime

from django.forms import DateTimeInput
from django.test import override_settings
from django.utils import translation

from .base import WidgetTest


class DateTimeInputTest(WidgetTest):
    widget = DateTimeInput()

    def test_render_none(self):
        self.check_html(self.widget, 'date', None, '<input type="text" name="date" />')

    def test_render_value(self):
        """
        The microseconds are trimmed on display, by default.
        """
        d = datetime(2007, 9, 17, 12, 51, 34, 482548)
        self.assertEqual(str(d), '2007-09-17 12:51:34.482548')
        self.check_html(self.widget, 'date', d, html=(
            '<input type="text" name="date" value="2007-09-17 12:51:34" />'
        ))
        self.check_html(self.widget, 'date', datetime(2007, 9, 17, 12, 51, 34), html=(
            '<input type="text" name="date" value="2007-09-17 12:51:34" />'
        ))
        self.check_html(self.widget, 'date', datetime(2007, 9, 17, 12, 51), html=(
            '<input type="text" name="date" value="2007-09-17 12:51:00" />'
        ))

    def test_render_formatted(self):
        """
        Use 'format' to change the way a value is displayed.
        """
        widget = DateTimeInput(
            format='%d/%m/%Y %H:%M', attrs={'type': 'datetime'},
        )
        d = datetime(2007, 9, 17, 12, 51, 34, 482548)
        self.check_html(widget, 'date', d, html='<input type="datetime" name="date" value="17/09/2007 12:51" />')

    @override_settings(USE_L10N=True)
    @translation.override('de-at')
    def test_l10n(self):
        d = datetime(2007, 9, 17, 12, 51, 34, 482548)
        self.check_html(self.widget, 'date', d, html=(
            '<input type="text" name="date" value="17.09.2007 12:51:34" />'
        ))

    @override_settings(USE_L10N=True)
    @translation.override('de-at')
    def test_locale_aware(self):
        d = datetime(2007, 9, 17, 12, 51, 34, 482548)
        with self.settings(USE_L10N=False):
            self.check_html(
                self.widget, 'date', d,
                html='<input type="text" name="date" value="2007-09-17 12:51:34" />',
            )
        with translation.override('es'):
            self.check_html(
                self.widget, 'date', d,
                html='<input type="text" name="date" value="17/09/2007 12:51:34" />',
            )