#!/usr/bin/env python3

# SPDX-FileCopyrightText: 2023 Fushan Wen <qydwhotmail@gmail.com>
# SPDX-License-Identifier: MIT

import subprocess
import sys
import time
import unittest

import cv2 as cv
import gi

gi.require_version('Gtk', '4.0')
from appium import webdriver
from appium.options.common.base import AppiumOptions
from appium.webdriver.common.appiumby import AppiumBy
from desktoptest import start_kactivitymanagerd, start_kded
from gi.repository import Gtk
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.actions.action_builder import ActionBuilder
from selenium.webdriver.common.actions.interaction import POINTER_TOUCH
from selenium.webdriver.common.actions.pointer_input import PointerInput
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait


class Bug477220Test(unittest.TestCase):

    driver: webdriver.Remote
    kactivitymanagerd: subprocess.Popen | None = None
    kded: subprocess.Popen | None = None

    @classmethod
    def setUpClass(cls) -> None:
        cls.kactivitymanagerd = start_kactivitymanagerd()
        cls.kded = start_kded()

        options = AppiumOptions()
        options.set_capability("app", "plasmashell -p org.kde.plasma.desktop --no-respawn")
        options.set_capability("environ", {
            "QT_LOGGING_RULES": "kf.kirigami.platform.warning=false",
        })
        options.set_capability("timeouts", {'implicit': 30000})
        cls.driver = webdriver.Remote(command_executor='http://127.0.0.1:4723', options=options)

    def tearDown(self) -> None:
        """
        Take screenshot when the current test fails
        """
        if not self._outcome.result.wasSuccessful():
            self.driver.get_screenshot_as_file(f"failed_test_shot_bug476968_#{self.id()}.png")

    @classmethod
    def tearDownClass(cls) -> None:
        """
        Make sure to terminate the driver again, lest it dangles.
        """
        subprocess.check_output(["kquitapp6", "plasmashell"], stderr=sys.stderr)
        if cls.kded:
            cls.kded.kill()
        if cls.kactivitymanagerd:
            cls.kactivitymanagerd.kill()
        cls.driver.quit()

    def test_1_bug478958_touch_long_press_on_desktop(self) -> None:
        """
        Long press on the desktop to enter the edit mode
        """
        time.sleep(3)
        screen_geometry = Gtk.Window().get_display().get_monitors()[0].get_geometry()
        long_press_time_ms: int = Gtk.Settings.get_default().get_property("gtk-long-press-time") * 2 + 5000
        self.assertGreater(screen_geometry.width, 100)
        self.assertGreater(screen_geometry.height, 100)

        # Click "More" to open the desktop context menu
        wait = WebDriverWait(self.driver, 5)
        success = False
        for _ in range(20):
            try:
                # Work around "no target window"
                action = ActionBuilder(self.driver, mouse=PointerInput(POINTER_TOUCH, "finger"))
                action.pointer_action.move_to_location(int(screen_geometry.width / 2), int(screen_geometry.height / 2)).click()
                action.perform()
                action = ActionBuilder(self.driver, mouse=PointerInput(POINTER_TOUCH, "finger"))
                action.pointer_action.move_to_location(int(screen_geometry.width / 2), int(screen_geometry.height / 2)).pointer_down().pause(long_press_time_ms / 1000).pointer_up()
                action.perform()
                wait.until(EC.presence_of_element_located((AppiumBy.NAME, "More"))).click()
                success = True
                break
            except TimeoutException:
                continue
        self.assertTrue(success)

    def test_2_bug477220_open_context_menu(self) -> None:
        """
        "More" button in the desktop toolbox does not open the context menu
        """
        time.sleep(3)  # Wait until the menu appears
        self.driver.get_screenshot_as_file("bug477220_open_context_menu_before.png")
        actions = ActionChains(self.driver)
        for _ in range(3):  # The number of menu items by default
            actions = actions.send_keys(Keys.DOWN).pause(0.5)
        actions.perform()
        self.driver.get_screenshot_as_file("bug477220_open_context_menu_after.png")

        img1 = cv.imread("bug477220_open_context_menu_before.png", cv.IMREAD_GRAYSCALE)
        img2 = cv.imread("bug477220_open_context_menu_after.png", cv.IMREAD_GRAYSCALE)
        diff = cv.subtract(img1, img2)
        self.assertGreater(cv.countNonZero(diff), 4000)  # Menu highlight changes

        # Click an empty area to close the menu
        screen_geometry = Gtk.Window().get_display().get_monitors()[0].get_geometry()
        action = ActionBuilder(self.driver, mouse=PointerInput(POINTER_TOUCH, "finger"))
        action.pointer_action.move_to_location(int(screen_geometry.width / 2), int(screen_geometry.height / 2)).click()
        action.perform()

    def test_3_touch_long_press_on_panel(self) -> None:
        """
        Long press on the panel to enter the edit mode
        """
        time.sleep(3)  # Wait until the menu disappears
        screen_geometry = Gtk.Window().get_display().get_monitors()[0].get_geometry()
        long_press_time_ms: int = Gtk.Settings.get_default().get_property("gtk-long-press-time") * 2 + 5000
        self.assertGreater(screen_geometry.width, 100)
        self.assertGreater(screen_geometry.height, 100)

        # Click "More" to open the desktop context menu
        wait = WebDriverWait(self.driver, 5)
        success = False
        for _ in range(20):
            try:
                # Work around "no target window"
                action = ActionBuilder(self.driver, mouse=PointerInput(POINTER_TOUCH, "finger"))
                action.pointer_action.move_to_location(int(screen_geometry.width / 2), int(screen_geometry.height - 20)).click()
                action.perform()
                # Press on the panel
                action = ActionBuilder(self.driver, mouse=PointerInput(POINTER_TOUCH, "finger"))
                action.pointer_action.move_to_location(int(screen_geometry.width / 2), int(screen_geometry.height - 20)).pointer_down().pause(long_press_time_ms / 1000).pointer_up()
                action.perform()
                wait.until(EC.presence_of_element_located((AppiumBy.NAME, "More")))
                success = True
                break
            except TimeoutException:
                continue
        self.assertTrue(success)


if __name__ == '__main__':
    assert subprocess.call(["pidof", "plasmashell"]) != 0, "The test requires plasmashell to quit"
    unittest.main()