import os
import requests
import socket
import socks
import zipfile

from PyQt5 import QtCore, QtTest
from onionshare import strings

class CommonTests(object):
    def test_gui_loaded(self):
        '''Test that the GUI actually is shown'''
        self.assertTrue(self.gui.show)

    def test_windowTitle_seen(self):
        '''Test that the window title is OnionShare'''
        self.assertEqual(self.gui.windowTitle(), 'OnionShare')

    def test_settings_button_is_visible(self):
        '''Test that the settings button is visible'''
        self.assertTrue(self.gui.settings_button.isVisible())

    def test_server_status_bar_is_visible(self):
        '''Test that the status bar is visible'''
        self.assertTrue(self.gui.status_bar.isVisible())

    def test_info_widget_is_not_visible(self, mode):
        '''Test that the info widget along top of screen is not shown'''
        if mode == 'receive':
            self.assertFalse(self.gui.receive_mode.info_widget.isVisible())
        if mode == 'share':
            self.assertFalse(self.gui.share_mode.info_widget.isVisible())

    def test_info_widget_is_visible(self, mode):
        '''Test that the info widget along top of screen is shown''' 
        if mode == 'receive':
            self.assertTrue(self.gui.receive_mode.info_widget.isVisible())
        if mode == 'share':
            self.assertTrue(self.gui.share_mode.info_widget.isVisible())

    def test_click_mode(self, mode):
        '''Test that we can switch Mode by clicking the button'''
        if mode == 'receive':
            QtTest.QTest.mouseClick(self.gui.receive_mode_button, QtCore.Qt.LeftButton)
            self.assertTrue(self.gui.mode, self.gui.MODE_RECEIVE)
        if mode == 'share':
            QtTest.QTest.mouseClick(self.gui.share_mode_button, QtCore.Qt.LeftButton)
            self.assertTrue(self.gui.mode, self.gui.MODE_SHARE)

    def test_history_is_visible(self, mode):
        '''Test that the History section is visible and that the relevant widget is present'''
        if mode == 'receive':
            self.assertTrue(self.gui.receive_mode.uploads.isVisible())
            self.assertTrue(self.gui.receive_mode.uploads.no_uploads_label.isVisible())
        if mode == 'share':
            self.assertTrue(self.gui.share_mode.downloads.isVisible())
            self.assertTrue(self.gui.share_mode.downloads.no_downloads_label.isVisible())

    def test_server_working_on_start_button_pressed(self, mode):
        '''Test we can start the service'''
        # Should be in SERVER_WORKING state
        if mode == 'receive':
            QtTest.QTest.mouseClick(self.gui.receive_mode.server_status.server_button, QtCore.Qt.LeftButton)
            self.assertEqual(self.gui.receive_mode.server_status.status, 1)
        if mode == 'share':
            QtTest.QTest.mouseClick(self.gui.share_mode.server_status.server_button, QtCore.Qt.LeftButton)
            self.assertEqual(self.gui.share_mode.server_status.status, 1)

    def test_server_status_indicator_says_starting(self, mode):
        '''Test that the Server Status indicator shows we are Starting'''
        if mode == 'receive':
            self.assertEquals(self.gui.receive_mode.server_status_label.text(), strings._('gui_status_indicator_share_working', True))
        if mode == 'share':
            self.assertEquals(self.gui.share_mode.server_status_label.text(), strings._('gui_status_indicator_share_working', True))

    def test_settings_button_is_hidden(self):
        '''Test that the settings button is hidden when the server starts'''
        self.assertFalse(self.gui.settings_button.isVisible())

    def test_a_server_is_started(self, mode):
        '''Test that the server has started'''
        QtTest.QTest.qWait(2000)
        # Should now be in SERVER_STARTED state
        if mode == 'receive':
            self.assertEqual(self.gui.receive_mode.server_status.status, 2)
        if mode == 'share':
            self.assertEqual(self.gui.share_mode.server_status.status, 2)

    def test_a_web_server_is_running(self):
        '''Test that the web server has started'''
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        self.assertEqual(sock.connect_ex(('127.0.0.1',self.gui.app.port)), 0)

    def test_have_a_slug(self, mode, public_mode):
        '''Test that we have a valid slug'''
        if mode == 'receive':
            if not public_mode:
                self.assertRegex(self.gui.receive_mode.server_status.web.slug, r'(\w+)-(\w+)')
            else:
                self.assertIsNone(self.gui.receive_mode.server_status.web.slug, r'(\w+)-(\w+)')
        if mode == 'share':
            if not public_mode:
                self.assertRegex(self.gui.share_mode.server_status.web.slug, r'(\w+)-(\w+)')
            else:
                self.assertIsNone(self.gui.share_mode.server_status.web.slug, r'(\w+)-(\w+)')


    def test_url_description_shown(self, mode):
        '''Test that the URL label is showing'''
        if mode == 'receive':
            self.assertTrue(self.gui.receive_mode.server_status.url_description.isVisible())
        if mode == 'share':
            self.assertTrue(self.gui.share_mode.server_status.url_description.isVisible())

    def test_have_copy_url_button(self, mode):
        '''Test that the Copy URL button is shown'''
        if mode == 'receive':
            self.assertTrue(self.gui.receive_mode.server_status.copy_url_button.isVisible())
        if mode == 'share':
            self.assertTrue(self.gui.share_mode.server_status.copy_url_button.isVisible())

    def test_server_status_indicator_says_started(self, mode):
        '''Test that the Server Status indicator shows we are started'''
        if mode == 'receive':
            self.assertEquals(self.gui.receive_mode.server_status_label.text(), strings._('gui_status_indicator_receive_started', True))
        if mode == 'share':
            self.assertEquals(self.gui.receive_mode.server_status_label.text(), strings._('gui_status_indicator_share_started', True))

    def test_web_page(self, mode, string, public_mode):
        '''Test that the web page contains a string'''
        s = socks.socksocket()
        s.settimeout(60)
        s.connect(('127.0.0.1', self.gui.app.port))

        if not public_mode:
            if mode == 'receive':
                path = '/{}'.format(self.gui.receive_mode.server_status.web.slug)
            if mode == 'share':
                path = '/{}'.format(self.gui.share_mode.server_status.web.slug)
        else:
            path = '/'

        http_request = 'GET {} HTTP/1.0\r\n'.format(path)
        http_request += 'Host: 127.0.0.1\r\n'
        http_request += '\r\n'
        s.sendall(http_request.encode('utf-8'))

        with open('/tmp/webpage', 'wb') as file_to_write:
            while True:
               data = s.recv(1024)
               if not data:
                   break
               file_to_write.write(data)
            file_to_write.close()

        f = open('/tmp/webpage')
        self.assertTrue(string in f.read())
        f.close()

    def test_history_widgets_present(self, mode):
        '''Test that the relevant widgets are present in the history view after activity has taken place'''
        if mode == 'receive':
            self.assertFalse(self.gui.receive_mode.uploads.no_uploads_label.isVisible())
            self.assertTrue(self.gui.receive_mode.uploads.clear_history_button.isVisible())
        if mode == 'share':
            self.assertFalse(self.gui.share_mode.downloads.no_downloads_label.isVisible())
            self.assertTrue(self.gui.share_mode.downloads.clear_history_button.isVisible())

    def test_counter_incremented(self, mode, count):
        '''Test that the counter has incremented'''
        if mode == 'receive':
            self.assertEquals(self.gui.receive_mode.uploads_completed, count)
        if mode == 'share':
            self.assertEquals(self.gui.share_mode.downloads_completed, count)

    def test_server_is_stopped(self, mode, stay_open):
        '''Test that the server stops when we click Stop'''
        if mode == 'receive':
            QtTest.QTest.mouseClick(self.gui.receive_mode.server_status.server_button, QtCore.Qt.LeftButton)
            self.assertEquals(self.gui.receive_mode.server_status.status, 0)
        if mode == 'share':
            if stay_open:
                QtTest.QTest.mouseClick(self.gui.share_mode.server_status.server_button, QtCore.Qt.LeftButton)
            self.assertEquals(self.gui.share_mode.server_status.status, 0)

    def test_web_service_is_stopped(self):
        '''Test that the web server also stopped'''
        QtTest.QTest.qWait(2000)
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        # We should be closed by now. Fail if not!
        self.assertNotEqual(sock.connect_ex(('127.0.0.1',self.gui.app.port)), 0)

    def test_server_status_indicator_says_closed(self, mode, stay_open):
        '''Test that the Server Status indicator shows we closed'''
        if mode == 'receive':
            self.assertEquals(self.gui.receive_mode.server_status_label.text(), strings._('gui_status_indicator_receive_stopped', True))
        if mode == 'share':
            if stay_open:
                self.assertEquals(self.gui.share_mode.server_status_label.text(), strings._('gui_status_indicator_share_stopped', True))
            else:
                self.assertEquals(self.gui.share_mode.server_status_label.text(), strings._('closing_automatically', True))

    # Auto-stop timer tests
    def test_set_timeout(self, mode, timeout):
        '''Test that the timeout can be set'''
        timer = QtCore.QDateTime.currentDateTime().addSecs(timeout)
        if mode == 'receive':
            self.gui.receive_mode.server_status.shutdown_timeout.setDateTime(timer)
            self.assertTrue(self.gui.receive_mode.server_status.shutdown_timeout.dateTime(), timer)
        if mode == 'share':
            self.gui.share_mode.server_status.shutdown_timeout.setDateTime(timer)
            self.assertTrue(self.gui.share_mode.server_status.shutdown_timeout.dateTime(), timer)

    def test_timeout_widget_hidden(self, mode):
        '''Test that the timeout widget is hidden when share has started'''
        if mode == 'receive':
            self.assertFalse(self.gui.receive_mode.server_status.shutdown_timeout_container.isVisible())
        if mode == 'share':
            self.assertFalse(self.gui.share_mode.server_status.shutdown_timeout_container.isVisible())

    def test_server_timed_out(self, mode, wait):
        '''Test that the server has timed out after the timer ran out'''
        QtTest.QTest.qWait(wait)
        # We should have timed out now
        if mode == 'receive':
            self.assertEqual(self.gui.receive_mode.server_status.status, 0)
        if mode == 'share':
            self.assertEqual(self.gui.share_mode.server_status.status, 0)

    # Receive-specific tests
    def test_upload_file(self, public_mode, expected_file):
        '''Test that we can upload the file'''
        files = {'file[]': open('/tmp/test.txt', 'rb')}
        if not public_mode:
            path = 'http://127.0.0.1:{}/{}/upload'.format(self.gui.app.port, self.gui.receive_mode.web.slug)
        else:
            path = 'http://127.0.0.1:{}/upload'.format(self.gui.app.port)
        response = requests.post(path, files=files)
        QtTest.QTest.qWait(2000)
        self.assertTrue(os.path.isfile(expected_file))

    # Share-specific tests
    def test_file_selection_widget_has_a_file(self):
        '''Test that the number of files in the list is 1'''
        self.assertEqual(self.gui.share_mode.server_status.file_selection.get_num_files(), 1)

    def test_deleting_only_file_hides_delete_button(self):
        '''Test that clicking on the file item shows the delete button. Test that deleting the only item in the list hides the delete button'''
        rect = self.gui.share_mode.server_status.file_selection.file_list.visualItemRect(self.gui.share_mode.server_status.file_selection.file_list.item(0))
        QtTest.QTest.mouseClick(self.gui.share_mode.server_status.file_selection.file_list.viewport(), QtCore.Qt.LeftButton, pos=rect.center())
        # Delete button should be visible
        self.assertTrue(self.gui.share_mode.server_status.file_selection.delete_button.isVisible())
        # Click delete, and since there's no more files, the delete button should be hidden
        QtTest.QTest.mouseClick(self.gui.share_mode.server_status.file_selection.delete_button, QtCore.Qt.LeftButton)
        self.assertFalse(self.gui.share_mode.server_status.file_selection.delete_button.isVisible())

    def test_add_a_file_and_delete_using_its_delete_widget(self):
        '''Test that we can also delete a file by clicking on its [X] widget'''
        self.gui.share_mode.server_status.file_selection.file_list.add_file('/etc/hosts')
        QtTest.QTest.mouseClick(self.gui.share_mode.server_status.file_selection.file_list.item(0).item_button, QtCore.Qt.LeftButton)
        self.assertEquals(self.gui.share_mode.server_status.file_selection.get_num_files(), 0)

    def test_file_selection_widget_readd_files(self):
        '''Re-add some files to the list so we can share'''
        self.gui.share_mode.server_status.file_selection.file_list.add_file('/etc/hosts')
        self.gui.share_mode.server_status.file_selection.file_list.add_file('/tmp/test.txt')
        self.assertEqual(self.gui.share_mode.server_status.file_selection.get_num_files(), 2)

    def test_add_delete_buttons_hidden(self):
        '''Test that the add and delete buttons are hidden when the server starts'''
        self.assertFalse(self.gui.share_mode.server_status.file_selection.add_button.isVisible())
        self.assertFalse(self.gui.share_mode.server_status.file_selection.delete_button.isVisible())

    def test_download_share(self, public_mode):
        '''Test that we can download the share'''
        s = socks.socksocket()
        s.settimeout(60)
        s.connect(('127.0.0.1', self.gui.app.port))

        if public_mode:
            path = '/download'
        else:
            path = '{}/download'.format(self.gui.share_mode.web.slug)

        http_request = 'GET {} HTTP/1.0\r\n'.format(path)
        http_request += 'Host: 127.0.0.1\r\n'
        http_request += '\r\n'
        s.sendall(http_request.encode('utf-8'))

        with open('/tmp/download.zip', 'wb') as file_to_write:
            while True:
               data = s.recv(1024)
               if not data:
                   break
               file_to_write.write(data)
            file_to_write.close()

        zip = zipfile.ZipFile('/tmp/download.zip')
        QtTest.QTest.qWait(2000)
        self.assertEquals('onionshare', zip.read('test.txt').decode('utf-8'))

    def test_add_button_visible(self):
        '''Test that the add button should be visible'''
        self.assertTrue(self.gui.share_mode.server_status.file_selection.add_button.isVisible())