from __future__ import annotations

import time

from yuxi.channels.adapters.twitch.deduplicator import MessageDeduplicator


class TestMessageDeduplicator:

    def test_first_message_not_duplicate(self):
        dedup = MessageDeduplicator()
        assert dedup.is_duplicate("msg_001") is False

    def test_repeated_message_is_duplicate(self):
        dedup = MessageDeduplicator()
        assert dedup.is_duplicate("msg_001") is False
        assert dedup.is_duplicate("msg_001") is True
        assert dedup.is_duplicate("msg_001") is True

    def test_different_messages_not_duplicates(self):
        dedup = MessageDeduplicator()
        assert dedup.is_duplicate("msg_001") is False
        assert dedup.is_duplicate("msg_002") is False
        assert dedup.is_duplicate("msg_003") is False

    def test_expired_message_not_duplicate(self, monkeypatch):
        dedup = MessageDeduplicator()
        dedup.TTL_SECONDS = 0.1

        assert dedup.is_duplicate("msg_001") is False
        time.sleep(0.15)
        assert dedup.is_duplicate("msg_001") is False

    def test_mark_seen(self):
        dedup = MessageDeduplicator()
        dedup.mark_seen("msg_001")
        assert dedup.is_duplicate("msg_001") is True

    def test_length_tracks_entries(self):
        dedup = MessageDeduplicator()
        assert len(dedup) == 0
        dedup.is_duplicate("msg_001")
        assert len(dedup) == 1
        dedup.is_duplicate("msg_002")
        assert len(dedup) == 2
        dedup.is_duplicate("msg_001")
        assert len(dedup) == 2

    def test_different_ids_independent(self):
        dedup = MessageDeduplicator()
        for i in range(100):
            assert dedup.is_duplicate(f"msg_{i:04d}") is False
        for i in range(100):
            assert dedup.is_duplicate(f"msg_{i:04d}") is True