import json
import unittest

import core.config
import core.output
import core.module

class TestModule(core.module.Module):
    pass

class i3(unittest.TestCase):
    def setUp(self):
        self.i3 = core.output.i3()
        widget = unittest.mock.MagicMock()
        widget.full_text.return_value = "test"
        self.someModule = TestModule(config=core.config.Config([]),
            widgets=[widget, widget, widget])
        self.paddedTheme = core.theme.Theme(raw_data = {
            'defaults': { 'padding': ' ' }
        });
        self.separator = '***';
        self.separatorTheme = core.theme.Theme(raw_data = {
            'defaults': { 'separator': self.separator, 'fg': 'red', 'bg': 'blue' }
        });

    def test_start(self):
        core.event.clear()

        all_data = self.i3.start()
        data = all_data['blocks']
        self.assertEqual(1, data['version'], 'i3bar protocol version 1 expected')
        self.assertTrue(data['click_events'], 'click events should be enabled')
        self.assertEqual('\n[', all_data['suffix'])

    def test_stop(self):
        self.assertEqual('\n]', self.i3.stop()['suffix'], 'wrong i3bar protocol during stop')

    def test_no_modules_by_default(self):
        self.assertEqual(0, len(self.i3.modules()), 'module list should be empty by default')

    def test_register_single_module(self):
        self.i3.modules(self.someModule)
        self.assertEqual(1, len(self.i3.modules()), 'setting single module does not work')

    def test_register_multiple_modules(self):
        self.i3.modules([ self.someModule, self.someModule, self.someModule ])
        self.assertEqual(3, len(self.i3.modules()), 'setting module list does not work')

    def test_draw_existing_module(self):
        self.i3.test_draw = unittest.mock.MagicMock(return_value={
            'blocks': { 'test': True }, 'suffix': 'end'
        })
        self.i3.draw('test_draw')
        self.i3.test_draw.assert_called_once_with()

    def test_empty_status_line(self):
        data = self.i3.statusline()
        self.assertEqual([], data['blocks'], 'expected empty list of status line entries')
        self.assertEqual(',', data['suffix'], 'expected "," as suffix')

    def test_statusline(self):
        self.i3.modules([ self.someModule, self.someModule, self.someModule ])
        self.i3.update()
        data = self.i3.statusline()
        self.assertEqual(len(self.someModule.widgets())*3, len(data['blocks']), 'wrong number of widgets')

    def test_padding(self):
        self.i3.theme(self.paddedTheme)
        blk = core.output.block(self.i3.theme(), self.someModule, self.someModule.widget())
        blk.set('full_text', 'abc')
        result = blk.dict()['full_text']
        self.assertEqual(' abc ', result)

    def test_no_separator(self):
        result = self.i3.__separator_block(self.someModule, self.someModule.widget())
        self.assertEqual([], result)

    def test_separator(self):
        self.i3.theme(self.separatorTheme)
        result = self.i3.__separator_block(self.someModule, self.someModule.widget())
        self.assertEqual(1, len(result))
        self.assertEqual('***', result[0].dict()['full_text'])
        self.assertTrue(result[0].dict().get('_decorator', False))
        self.assertEqual(self.separatorTheme.get('bg', self.someModule.widget()), result[0].dict()['color'])

    def test_dump_json(self):
        obj = unittest.mock.MagicMock()
        obj.dict = unittest.mock.MagicMock()
        core.output.dump_json(obj)
        obj.dict_assert_called_once_with()

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