"""Tests for converter UI functionality."""

from pathlib import Path
from unittest.mock import Mock, patch

import pytest
from rich.console import Console

from paperlib.ui import ConversionUI


class TestConversionUI:
    """Test ConversionUI functionality."""

    @pytest.fixture
    def ui(self):
        """Create a ConversionUI instance for testing."""
        # Use a console that doesn't output to terminal during tests
        console = Console(file=open("/dev/null", "w"), force_terminal=True)
        return ConversionUI(console=console)

    @pytest.fixture
    def mock_papers(self):
        """Create mock paper metadata for testing."""
        papers = []
        for i in range(3):
            paper = Mock()
            paper.paper_id = f"test-paper-{i + 1}"
            paper.title = f"Test Paper Title {i + 1}"
            papers.append(paper)
        return papers

    def test_format_mineru_output_line(self, ui):
        """Test formatting of MinerU output lines."""
        # Test INFO line
        info_line = "2026-04-17 17:46:01.450 | INFO | Processing started"
        formatted = ui._format_mineru_output_line(info_line)
        assert "[dim]" in formatted

        # Test ERROR line
        error_line = "ERROR: Conversion failed"
        formatted = ui._format_mineru_output_line(error_line)
        assert "[red]" in formatted

        # Test WARNING line
        warning_line = "WARNING: Low memory"
        formatted = ui._format_mineru_output_line(warning_line)
        assert "[yellow]" in formatted

        # Test progress line
        progress_line = "Layout Predict: 50%|█████     | 22/44 [00:15<00:15, 1.44it/s]"
        formatted = ui._format_mineru_output_line(progress_line)
        assert "[blue]" in formatted

        # Test fetching line (may be colored blue due to % character)
        fetch_line = "Fetching 7 files: 100%|██████████| 7/7"
        formatted = ui._format_mineru_output_line(fetch_line)
        assert ("[cyan]" in formatted) or (
            "[blue]" in formatted
        )  # Either color is fine

    @patch("threading.Thread")
    @patch("time.sleep")
    def test_run_conversion_with_ui_empty(self, mock_sleep, mock_thread, ui):
        """Test UI with no papers to convert."""
        result = ui.run_conversion_with_ui([], lambda x: True)
        assert result == (0, 0)

    def test_create_display_table(self, ui):
        """Test creating the display table."""
        task_id = ui.progress.add_task("test", total=1)

        # Test without current paper
        table = ui.create_display_table(task_id)
        assert table is not None

        # Test with current paper
        table = ui.create_display_table(task_id, "test-paper-1 - Sample Title")
        assert table is not None

    def test_output_line_management(self, ui):
        """Test that output lines are properly managed."""
        # Add many lines
        for i in range(60):
            ui.output_lines.append(f"Line {i}")

        # The list can grow beyond 50, but display is limited to last 15 lines
        assert len(ui.output_lines) == 60

        # Check that display shows only recent lines
        recent_lines = ui.output_lines[-ui.max_output_lines :]
        assert len(recent_lines) == ui.max_output_lines