# vim:fileencoding=utf-8:noet

'''Dynamic configuration files tests.'''

from __future__ import (unicode_literals, division, absolute_import, print_function)

import sys
import os
import json
import logging

import tests.modules.vim as vim_module

from tests.modules.lib import Args, urllib_read, replace_attr
from tests.modules import TestCase

from powerline import NotInterceptedError
from powerline.segments.common import wthr


VBLOCK = chr(ord('V') - 0x40)
SBLOCK = chr(ord('S') - 0x40)


class FailingLogger(logging.Logger):
	def exception(self, *args, **kwargs):
		super(FailingLogger, self).exception(*args, **kwargs)
		raise NotInterceptedError('Unexpected exception occurred')


def get_logger(stream=None):
	log_format = '%(asctime)s:%(levelname)s:%(message)s'
	formatter = logging.Formatter(log_format)

	level = logging.WARNING
	handler = logging.StreamHandler(stream)
	handler.setLevel(level)
	handler.setFormatter(formatter)

	logger = FailingLogger('powerline')
	logger.setLevel(level)
	logger.addHandler(handler)
	return logger


class TestVimConfig(TestCase):
	def test_vim(self):
		from powerline.vim import VimPowerline
		cfg_path = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), 'powerline', 'config_files')
		buffers = (
			(('bufoptions',), {'buftype': 'help'}),
			(('bufname', '[Command Line]'), {}),
			(('bufoptions',), {'buftype': 'quickfix'}),
			(('bufname', 'NERD_tree_1'), {}),
			(('bufname', '__Gundo__'), {}),
			(('bufname', '__Gundo_Preview__'), {}),
			# No Command-T tests here: requires +ruby or emulation
			# No tabline here: tablines are tested separately
		)
		with open(os.path.join(cfg_path, 'config.json'), 'r') as f:
			local_themes_raw = json.load(f)['ext']['vim']['local_themes']
			# Don’t run tests on external/plugin segments
			local_themes = dict((k, v) for (k, v) in local_themes_raw.items())
			# See end of the buffers definition above for `- 2`
			self.assertEqual(len(buffers), len(local_themes) - 2)
		outputs = {}
		i = 0

		with vim_module._with('split'):
			with VimPowerline(logger=get_logger()) as powerline:
				def check_output(mode, args, kwargs):
					if mode == 'nc':
						window = vim_module.windows[0]
						window_id = 2
					else:
						vim_module._start_mode(mode)
						window = vim_module.current.window
						window_id = 1
					winnr = window.number
					out = powerline.render(window, window_id, winnr)
					if out in outputs:
						self.fail('Duplicate in set #{0} ({1}) for mode {2!r} (previously defined in set #{3} ({4!r}) for mode {5!r})'.format(i, (args, kwargs), mode, *outputs[out]))
					outputs[out] = (i, (args, kwargs), mode)

				with vim_module._with('bufname', '/tmp/foo.txt'):
					out = powerline.render(vim_module.current.window, 1, vim_module.current.window.number, is_tabline=True)
					outputs[out] = (-1, (None, None), 'tab')
					with vim_module._with('globals', powerline_config_paths=[cfg_path]):
						exclude = set(('no', 'v', 'V', VBLOCK, 's', 'S', SBLOCK, 'R', 'Rv', 'c', 'cv', 'ce', 'r', 'rm', 'r?', '!'))
						try:
							for mode in ['n', 'nc', 'no', 'v', 'V', VBLOCK, 's', 'S', SBLOCK, 'i', 'R', 'Rv', 'c', 'cv', 'ce', 'r', 'rm', 'r?', '!']:
								check_output(mode, None, None)
								for args, kwargs in buffers:
									i += 1
									if mode in exclude:
										continue
									with vim_module._with(*args, **kwargs):
										check_output(mode, args, kwargs)
						finally:
							vim_module._start_mode('n')

	@classmethod
	def setUpClass(cls):
		sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(os.path.dirname(__file__)), 'vim_sys_path')))

	@classmethod
	def tearDownClass(cls):
		sys.path.pop(0)


class TestConfig(TestCase):
	def test_tmux(self):
		from powerline.segments import common
		from imp import reload
		reload(common)
		from powerline.shell import ShellPowerline
		with replace_attr(common, 'urllib_read', urllib_read):
			with ShellPowerline(Args(ext=['tmux']), logger=get_logger(), run_once=False) as powerline:
				powerline.render()
			with ShellPowerline(Args(ext=['tmux']), logger=get_logger(), run_once=False) as powerline:
				powerline.render()

	def test_zsh(self):
		from powerline.shell import ShellPowerline
		args = Args(last_pipe_status=[1, 0], jobnum=0, ext=['shell'], renderer_module='.zsh')
		segment_info = {'args': args}
		with ShellPowerline(args, logger=get_logger(), run_once=False) as powerline:
			powerline.render(segment_info=segment_info)
		with ShellPowerline(args, logger=get_logger(), run_once=False) as powerline:
			powerline.render(segment_info=segment_info)
		segment_info['local_theme'] = 'select'
		with ShellPowerline(args, logger=get_logger(), run_once=False) as powerline:
			powerline.render(segment_info=segment_info)
		segment_info['local_theme'] = 'continuation'
		segment_info['parser_state'] = 'if cmdsubst'
		with ShellPowerline(args, logger=get_logger(), run_once=False) as powerline:
			powerline.render(segment_info=segment_info)

	def test_bash(self):
		from powerline.shell import ShellPowerline
		args = Args(last_exit_code=1, last_pipe_status=[], jobnum=0, ext=['shell'], renderer_module='.bash', config_override={'ext': {'shell': {'theme': 'default_leftonly'}}})
		with ShellPowerline(args, logger=get_logger(), run_once=False) as powerline:
			powerline.render(segment_info={'args': args})
		with ShellPowerline(args, logger=get_logger(), run_once=False) as powerline:
			powerline.render(segment_info={'args': args})

	def test_ipython(self):
		from powerline.ipython import IPythonPowerline

		class IpyPowerline(IPythonPowerline):
			config_paths = None
			config_overrides = None
			theme_overrides = {}

		segment_info = Args(prompt_count=1)

		with IpyPowerline(logger=get_logger(), renderer_module='.pre_5') as powerline:
			for prompt_type in ['in', 'in2']:
				powerline.render(is_prompt=True, matcher_info=prompt_type, segment_info=segment_info)
				powerline.render(is_prompt=True, matcher_info=prompt_type, segment_info=segment_info)
		with IpyPowerline(logger=get_logger(), renderer_module='.pre_5') as powerline:
			for prompt_type in ['out', 'rewrite']:
				powerline.render(is_prompt=False, matcher_info=prompt_type, segment_info=segment_info)
				powerline.render(is_prompt=False, matcher_info=prompt_type, segment_info=segment_info)

	def test_wm(self):
		from powerline.segments import common
		from imp import reload
		reload(common)
		from powerline import Powerline
		with replace_attr(wthr, 'urllib_read', urllib_read):
			Powerline(logger=get_logger(), ext='wm', renderer_module='pango_markup', run_once=True).render()
		reload(common)


old_cwd = None
saved_get_config_paths = None


def setUpModule():
	global old_cwd
	global saved_get_config_paths
	import powerline
	saved_get_config_paths = powerline.get_config_paths
	path = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), 'powerline', 'config_files')
	powerline.get_config_paths = lambda: [path]
	old_cwd = os.getcwd()


def tearDownModule():
	global old_cwd
	global saved_get_config_paths
	import powerline
	powerline.get_config_paths = saved_get_config_paths
	os.chdir(old_cwd)
	old_cwd = None


if __name__ == '__main__':
	from tests.modules import main
	main()