# flake8: noqa
# pylint: disable=broad-exception-raised, raise-missing-from, too-many-arguments, redefined-outer-name
# pylint: disable=multiple-statements, logging-fstring-interpolation, trailing-whitespace, line-too-long
# pylint: disable=broad-exception-caught, missing-function-docstring, missing-class-docstring
# pylint: disable=f-string-without-interpolation, protected-access, wrong-import-position
# pylance: disable=reportMissingImports, reportMissingModuleSource

import unittest
from unittest.mock import MagicMock, PropertyMock

from pyrogram.types import Message, Chat, Reaction, MessageReactions
from pyrogram.enums import MessageMediaType
from post_parser import PostParser # Import after mocking config


class StrWithHtml(str):
    """String subclass that mimics Pyrogram's text/caption objects.

    Pyrogram's text and caption fields are not plain str — they provide an
    .html property that returns the HTML-escaped version of the text.
    Using a plain str (or MagicMock) breaks len() / strip() checks in
    production code.  This class inherits from str so all str operations
    (len, strip, comparison, boolean coercion) work correctly, while also
    exposing the .html property expected by the parser.
    """

    @property
    def html(self):
        return self


class TestPostParserExtractFlags(unittest.TestCase):

    def setUp(self):
        self.client_mock = MagicMock()
        self.parser = PostParser(self.client_mock)
        # Mock the get_channel_username method to return a default channel name
        self.parser.get_channel_username = MagicMock(return_value="test_channel")

    def tearDown(self):
        # Reset mocks if needed
        pass

    def _create_mock_message(self,
                            media=None,
                            text=None,
                            caption=None,
                            reactions_data=None, # Format: [("emoji", count), ...]
                            forward_origin=None,     # Pass forward info via this
                            chat_username="test_channel"): # Default chat username
        message = MagicMock(spec=Message)
        message.media = media
        message.id = 123 # Add a default message ID
        message.forward_origin = None # Add missing attribute
        message.web_page = None # Add missing attribute checked in _extract_flags

        # Mock chat attribute
        mock_chat = MagicMock(spec=Chat)
        mock_chat.username = chat_username
        mock_chat.id = -1001234567890 if chat_username.startswith('-100') else 1234567890
        message.chat = mock_chat
        
        # Mock reactions
        if reactions_data:
            mock_reactions_list = []
            for emoji, count in reactions_data:
                reaction_mock = MagicMock(spec=Reaction)
                reaction_mock.emoji = emoji
                reaction_mock.count = count
                mock_reactions_list.append(reaction_mock)
            reactions_container_mock = MagicMock(spec=MessageReactions)
            reactions_container_mock.reactions = mock_reactions_list
            message.reactions = reactions_container_mock
        else:
            message.reactions = None

        # Mock forwarding info using the new forward_origin attribute
        if forward_origin:
            message.forward_origin = MagicMock() if forward_origin is True else forward_origin
        else:
            message.forward_origin = None

        # Assign text and caption as StrWithHtml instances so that str operations
        # (len, strip, bool coercion) behave exactly as they would with real
        # Pyrogram objects, while the .html property is still available.
        if text:
            message.text = StrWithHtml(text)
            message.caption = None
        elif caption:
            message.caption = StrWithHtml(caption)
            message.text = None
        else:
            message.text = None
            message.caption = None

        # Mock other necessary attributes accessed by _generate_html_body and other helpers
        message.poll = None
        message.channel_chat_created = False
        message.reply_to_message = None
        message.service = None
        message.web_page = None # Assume no web page unless specifically tested for flags

        return message

    # --- Test Cases ---

    def test_flag_fwd_forwarded_from_chat(self):
        message = self._create_mock_message(forward_origin=MagicMock(sender_chat=True))
        self.assertIn("fwd", self.parser._extract_flags(message))

    def test_flag_fwd_forwarded_from_user(self):
        message = self._create_mock_message(forward_origin=MagicMock(sender_user=True))
        self.assertIn("fwd", self.parser._extract_flags(message))

    def test_flag_fwd_forwarded_sender_name(self):
        message = self._create_mock_message(forward_origin=MagicMock(sender_user_name="Hidden Sender"))
        self.assertIn("fwd", self.parser._extract_flags(message))

    def test_flag_video_media_video_short_caption(self):
        message = self._create_mock_message(media=MessageMediaType.VIDEO, caption="Short video")
        self.assertIn("video", self.parser._extract_flags(message))

    def test_flag_video_media_video_note_short_text(self):
        message = self._create_mock_message(media=MessageMediaType.VIDEO_NOTE, text="Short note")
        self.assertIn("video", self.parser._extract_flags(message))

    def test_flag_video_media_animation_no_text(self):
        message = self._create_mock_message(media=MessageMediaType.ANIMATION)
        self.assertIn("video", self.parser._extract_flags(message))

    def test_flag_video_media_video_long_caption(self):
        long_caption = "This is a very long caption that exceeds the two hundred character limit, therefore it should not trigger the video flag even though the media type is video." * 5
        message = self._create_mock_message(media=MessageMediaType.VIDEO, caption=long_caption)
        # Sanity-check: the caption must actually be longer than the threshold
        self.assertGreater(len(message.caption), 200)
        self.assertNotIn("video", self.parser._extract_flags(message))

    def test_flag_no_image_no_media(self):
        message = self._create_mock_message(text="Just text")
        self.assertIn("no_image", self.parser._extract_flags(message))

    def test_flag_no_image_poll_media(self):
        # Need to mock poll structure if _generate_html_body uses it, but _extract_flags doesn't directly
        mock_poll = MagicMock()
        mock_poll.question = "A poll?"
        message = self._create_mock_message(media=MessageMediaType.POLL)
        message.poll = mock_poll # Assign mock poll
        self.assertIn("no_image", self.parser._extract_flags(message))

    def test_flag_no_image_with_image_media(self):
        message = self._create_mock_message(media=MessageMediaType.PHOTO)
        self.assertNotIn("no_image", self.parser._extract_flags(message))

    def test_flag_sticker(self):
        message = self._create_mock_message(media=MessageMediaType.STICKER)
        self.assertIn("sticker", self.parser._extract_flags(message))

    def test_flag_stream_keyword_stream(self):
        message = self._create_mock_message(text="Join our стрим tonight!")
        self.assertIn("stream", self.parser._extract_flags(message))

    def test_flag_stream_keyword_webinar(self):
        message = self._create_mock_message(text="Register for the вебинар.")
        self.assertIn("stream", self.parser._extract_flags(message))

    def test_flag_stream_keyword_lecture(self):
        message = self._create_mock_message(text="Upcoming онлайн-лекция about AI.")
        self.assertIn("stream", self.parser._extract_flags(message))
        
    def test_flag_stream_keyword_livestream(self):
        message = self._create_mock_message(text="Watch the livestream now.")
        self.assertIn("stream", self.parser._extract_flags(message))

    def test_flag_stream_case_insensitive(self):
        message = self._create_mock_message(text="Watch the LiveStream now.")
        self.assertIn("stream", self.parser._extract_flags(message))

    def test_flag_donat(self):
        message = self._create_mock_message(text="Support us via донат.")
        self.assertIn("donat", self.parser._extract_flags(message))

    def test_flag_donat_case_insensitive(self):
        message = self._create_mock_message(text="Support us via ДОНАТ.")
        self.assertIn("donat", self.parser._extract_flags(message))

    def test_flag_donat_with_boost_link(self):
        """Test that t.me/boost/ links add donat flag."""
        message = self._create_mock_message(text="Support the channel: https://t.me/boost/channel_name")
        self.assertIn("donat", self.parser._extract_flags(message))
        
    def test_flag_donat_with_cloudtips_link(self):
        """Test that pay.cloudtips.ru links add donat flag."""
        message = self._create_mock_message(text="Support us via this payment link: https://pay.cloudtips.ru/some_id")
        self.assertIn("donat", self.parser._extract_flags(message))
        
    def test_flag_donat_with_cloudtips_link_case_insensitive(self):
        """Test that PAY.CLOUDTIPS.RU links add donat flag (case insensitive)."""
        message = self._create_mock_message(text="Support us via PAY.CLOUDTIPS.RU/user")
        self.assertIn("donat", self.parser._extract_flags(message))

    def test_flag_clown_reaction(self):
        message = self._create_mock_message(reactions_data=[("🤡", 35), ("👍", 10)])
        self.assertIn("clownpoo", self.parser._extract_flags(message))

    def test_flag_clown_reaction_not_enough(self):
        message = self._create_mock_message(reactions_data=[("🤡", 29), ("👍", 10)])
        self.assertNotIn("clownpoo", self.parser._extract_flags(message))

    def test_flag_poo_reaction(self):
        message = self._create_mock_message(reactions_data=[("💩", 30), ("👎", 5)])
        self.assertIn("clownpoo", self.parser._extract_flags(message))

    def test_flag_poo_reaction_not_enough(self):
        message = self._create_mock_message(reactions_data=[("💩", 15), ("👎", 5)])
        self.assertNotIn("clownpoo", self.parser._extract_flags(message))

    def test_flag_advert_hashtag(self):
        message = self._create_mock_message(text="Check this out #реклама")
        self.assertIn("advert", self.parser._extract_flags(message))

    def test_flag_advert_partner_post(self):
        message = self._create_mock_message(text="Партнерский пост о новом продукте.")
        self.assertIn("advert", self.parser._extract_flags(message))

    def test_flag_advert_promo_code(self):
        message = self._create_mock_message(text="Use code XYZ по промокоду!")
        self.assertIn("advert", self.parser._extract_flags(message))
        
    def test_flag_advert_erid(self):
        message = self._create_mock_message(text="Some text erid:laskdjfhasdlkjfh")
        self.assertIn("advert", self.parser._extract_flags(message))

    def test_flag_paywall_boosty(self):
        message = self._create_mock_message(text="Full version on Boosty!")
        self.assertIn("paywall", self.parser._extract_flags(message))

    def test_flag_paywall_sponsr(self):
        message = self._create_mock_message(text="Support me on Sponsr.")
        self.assertIn("paywall", self.parser._extract_flags(message))

    def test_flag_link_in_text(self):
        message = self._create_mock_message(text="Visit https://example.com")
        # Use _generate_html_body to ensure link detection logic runs
        _ = self.parser._generate_html_body(message) # Call body generation which prepares text
        self.assertIn("link", self.parser._extract_flags(message))

    def test_flag_only_link_in_text(self):
        message = self._create_mock_message(text="https://example.com")
        # Use _generate_html_body to ensure link detection logic runs
        _ = self.parser._generate_html_body(message) # Call body generation which prepares text
        self.assertIn("only_link", self.parser._extract_flags(message))

    def test_flag_only_webpage(self):
        # Create a message with no text/caption first
        message = self._create_mock_message() 
        # Manually set the web_page attribute to simulate a webpage preview
        message.web_page = MagicMock() # Use MagicMock to simulate presence
        # Ensure text and caption are None for the 'only_link' logic
        message.text = None
        message.caption = None
        # The flag logic should now correctly identify this as only_link
        self.assertIn("only_link", self.parser._extract_flags(message))  

    def test_flag_link_in_href(self):
        # Need to mock html property correctly
        message = self._create_mock_message(text="Check this <a href='http://test.com'>link</a>")
        type(message).html = PropertyMock(return_value="Check this <a href='http://test.com'>link</a>")
        # Use _generate_html_body to ensure link detection logic runs
        _ = self.parser._generate_html_body(message)
        self.assertIn("link", self.parser._extract_flags(message))

    def test_flag_link_no_link(self):
        message = self._create_mock_message(text="Just plain text.")
        self.assertNotIn("link", self.parser._extract_flags(message))

    def test_flag_mention(self):
        message = self._create_mock_message(text="Mentioning @some_channel here.")
        self.assertIn("mention", self.parser._extract_flags(message))

    def test_flag_mention_no_mention(self):
        message = self._create_mock_message(text="No mentions here.")
        self.assertNotIn("mention", self.parser._extract_flags(message))

    def test_flag_hid_channel(self):
        message = self._create_mock_message(text="Join here: https://t.me/+ABC123xyz")
        self.assertIn("hid_channel", self.parser._extract_flags(message))

    def test_flag_foreign_channel_different_channel(self):
        message = self._create_mock_message(text="Check out https://t.me/another_channel", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertIn("foreign_channel", self.parser._extract_flags(message))

    def test_flag_foreign_channel_same_channel(self):
        message = self._create_mock_message(text="Our main channel https://t.me/test_channel", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertNotIn("foreign_channel", self.parser._extract_flags(message))
        
    def test_flag_foreign_channel_case_insensitive(self):
        message = self._create_mock_message(text="Our main channel https://t.me/TEST_channel", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertNotIn("foreign_channel", self.parser._extract_flags(message))

    def test_flag_foreign_channel_no_current_channel(self):
        message = self._create_mock_message(text="Link to https://t.me/another_channel")
        self.parser.get_channel_username = MagicMock(return_value=None) # Simulate no current channel found
        self.assertIn("foreign_channel", self.parser._extract_flags(message)) # Should still flag as foreign if current unknown

    def test_flag_foreign_channel_boost_other_channel(self):
        """Test that boost link to foreign channel is flagged."""
        message = self._create_mock_message(text="Boost another channel: https://t.me/boost/other_channel", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertIn("foreign_channel", self.parser._extract_flags(message))
    
    def test_flag_foreign_channel_boost_same_channel(self):
        """Test that boost link to own channel is not flagged."""
        message = self._create_mock_message(text="Boost our channel: https://t.me/boost/test_channel", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertNotIn("foreign_channel", self.parser._extract_flags(message))
    
    def test_flag_foreign_channel_boost_link_case_insensitive(self):
        """Test that boost link to own channel is not flagged (case insensitive)."""
        message = self._create_mock_message(text="Boost our channel: https://t.me/boost/TEST_CHANNEL", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertNotIn("foreign_channel", self.parser._extract_flags(message))
    
    def test_flag_foreign_channel_multiple_links(self):
        """Test with multiple links - should flag if any is foreign."""
        message = self._create_mock_message(
            text="Links: https://t.me/test_channel and https://t.me/other_channel and https://t.me/boost/test_channel", 
            chat_username="test_channel"
        )
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertIn("foreign_channel", self.parser._extract_flags(message))
    
    def test_flag_foreign_channel_only_boost_word(self):
        """Test that the word 'boost' is not flagged."""
        message = self._create_mock_message(text="Check out https://t.me/boost", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertNotIn("foreign_channel", self.parser._extract_flags(message))
        
    def test_flag_foreign_channel_boost_no_channel(self):
        """Test with boost/ but no channel after - should be flagged as foreign."""
        message = self._create_mock_message(text="Strange link: https://t.me/boost/", chat_username="test_channel")
        self.parser.get_channel_username = MagicMock(return_value="test_channel") # Ensure current channel is mocked
        self.assertNotIn("foreign_channel", self.parser._extract_flags(message))

    def test_flag_multiple_flags(self):
        message = self._create_mock_message(
            media=MessageMediaType.VIDEO,
            caption="Livestream announcement! Support via донат at https://example.com. Join https://t.me/+SECRET and mention @admin. #реклама",
            reactions_data=[("🤡", 40)],
            forward_origin=MagicMock(sender_chat=True) # Use forward_origin
        )
        # Mock HTML generation as it's used internally
        _ = self.parser._generate_html_body(message)
        flags = self.parser._extract_flags(message)
        expected_flags = ["fwd", "video", "stream", "donat", "clownpoo", "advert", "link", "mention", "hid_channel"]
        self.assertCountEqual(flags, expected_flags) # Use assertCountEqual for order-insensitive list comparison

    def test_flag_no_flags(self):
        message = self._create_mock_message(media=MessageMediaType.PHOTO, caption="A simple photo post.")
        flags = self.parser._extract_flags(message)
        self.assertEqual(flags, []) # Expect an empty list

    # --- Tests for poll flag ---
    
    def test_flag_poll_basic(self):
        """Test that messages with poll media have poll flag."""
        mock_poll = MagicMock()
        mock_poll.question = "A basic poll question?"
        message = self._create_mock_message(media=MessageMediaType.POLL)
        message.poll = mock_poll
        self.assertIn("poll", self.parser._extract_flags(message))
    
    def test_flag_poll_with_options(self):
        """Test poll flag with poll that has options."""
        mock_poll = MagicMock()
        mock_poll.question = "Which option do you prefer?"
        # Create mock options
        option1 = MagicMock()
        option1.text = "Option 1"
        option2 = MagicMock()
        option2.text = "Option 2"
        mock_poll.options = [option1, option2]
        
        message = self._create_mock_message(media=MessageMediaType.POLL)
        message.poll = mock_poll
        flags = self.parser._extract_flags(message)
        self.assertIn("poll", flags)
        self.assertIn("no_image", flags)  # Polls should also have no_image flag
    
    def test_flag_poll_with_text(self):
        """Test poll flag with poll that has accompanying text."""
        mock_poll = MagicMock()
        mock_poll.question = "Poll with text?"
        
        message = self._create_mock_message(media=MessageMediaType.POLL, text="This is a poll about something important")
        message.poll = mock_poll
        self.assertIn("poll", self.parser._extract_flags(message))
    
    def test_flag_poll_with_advert(self):
        """Test that poll with advert text has both flags."""
        mock_poll = MagicMock()
        mock_poll.question = "What do you think about our product?"
        
        message = self._create_mock_message(media=MessageMediaType.POLL, text="#реклама Проголосуйте в опросе!")
        message.poll = mock_poll
        
        flags = self.parser._extract_flags(message)
        self.assertIn("poll", flags)
        self.assertIn("advert", flags)

    # --- Additional Multiple Flags Tests ---

    def test_flag_multiple_fwd_link_mention(self):
        message = self._create_mock_message(
            text="Forwarded message with a link https://example.com and mention @someone.",
            forward_origin=MagicMock(sender_user_name="Hidden Sender") # Use forward_origin
        )
        flags = self.parser._extract_flags(message)
        expected_flags = ["fwd", "no_image", "link", "mention"]
        self.assertCountEqual(flags, expected_flags)

    def test_flag_multiple_video_advert_clown(self):
        message = self._create_mock_message(
            media=MessageMediaType.VIDEO,
            caption="Short video #реклама",
            reactions_data=[("🤡", 50)]
        )
        flags = self.parser._extract_flags(message)
        expected_flags = ["video", "advert", "clownpoo"]
        self.assertCountEqual(flags, expected_flags)

    def test_flag_multiple_no_image_stream_paywall_foreign(self):
        # Ensure current channel is mocked for foreign channel check
        self.parser.get_channel_username = MagicMock(return_value="current_channel")
        message = self._create_mock_message(
            text="Join our livestream! Full access on Boosty. Check out https://t.me/other_channel",
        )
        flags = self.parser._extract_flags(message)
        expected_flags = ["no_image", "stream", "paywall", "foreign_channel"]
        self.assertCountEqual(flags, expected_flags)

    def test_flag_multiple_sticker_donat_poo_hid(self):
        message = self._create_mock_message(
            media=MessageMediaType.STICKER,
            caption="Sticker with донат link https://t.me/+SECRET",
            reactions_data=[("💩", 30)]
        )
        flags = self.parser._extract_flags(message)
        # Sticker implies no 'no_image' flag
        expected_flags = ["sticker", "donat", "clownpoo", "hid_channel"]
        self.assertCountEqual(flags, expected_flags)

    def test_flag_multiple_text_only_advert_stream_clown_foreign(self):
        self.parser.get_channel_username = MagicMock(return_value="my_channel")
        message = self._create_mock_message(
            text="Это партнерский пост про наш вебинар. Ссылка на канал https://t.me/another. Регистрируйтесь тут!",
            reactions_data=[("🤡", 31)]
        )
        flags = self.parser._extract_flags(message)
        expected_flags = ["no_image", "advert", "stream", "clownpoo", "foreign_channel"]
        self.assertCountEqual(flags, expected_flags)

    def test_flag_multiple_video_note_fwd_paywall_mention(self):
        message = self._create_mock_message(
            media=MessageMediaType.VIDEO_NOTE,
            caption="Video note from @someone, full version on Sponsr",
            forward_origin=MagicMock(sender_user=True) # Use forward_origin
        )
        flags = self.parser._extract_flags(message)
        expected_flags = ["video", "fwd", "paywall", "mention"]
        self.assertCountEqual(flags, expected_flags)

    def test_flag_link_with_tme_excluded(self):
        message = self._create_mock_message(text="Check out this Telegram link https://t.me/channel_name")
        # Use _generate_html_body to ensure link detection logic runs
        _ = self.parser._generate_html_body(message)
        self.assertNotIn("link", self.parser._extract_flags(message))
    
    def test_flag_link_with_mixed_links(self):
        message = self._create_mock_message(text="Check both links: https://example.com and https://t.me/channel_name")
        # Use _generate_html_body to ensure link detection logic runs
        _ = self.parser._generate_html_body(message)
        self.assertIn("link", self.parser._extract_flags(message))

    def test_get_all_possible_flags_returns_list(self):
        """Test that get_all_possible_flags returns a list with more than one flag."""
        # This method is static, so we call it on the class
        flags = PostParser.get_all_possible_flags()
        self.assertIsInstance(flags, list, "Should return a list")
        self.assertGreater(len(flags), 1, "Should return more than one flag")


if __name__ == '__main__':
    unittest.main()