"""Comprehensive tests for TUI modules."""

import pytest
from unittest.mock import MagicMock, patch
import sys


class TestTuiColorPair:
    """Tests for TUI color constants."""

    def test_color_pair_enum(self):
        """Test ColorPair enum values exist."""
        from astrbot.tui.screen import ColorPair
        assert ColorPair.WHITE is not None
        assert ColorPair.CYAN is not None
        assert ColorPair.GREEN is not None
        assert ColorPair.YELLOW is not None
        assert ColorPair.RED is not None
        assert ColorPair.MAGENTA is not None
        assert ColorPair.DIM is not None

    def test_color_pair_header(self):
        """Test header color pairs."""
        from astrbot.tui.screen import ColorPair
        assert ColorPair.HEADER_BG is not None
        assert ColorPair.HEADER_FG is not None

    def test_color_pair_messages(self):
        """Test message color pairs."""
        from astrbot.tui.screen import ColorPair
        assert ColorPair.USER_MSG is not None
        assert ColorPair.BOT_MSG is not None
        assert ColorPair.SYSTEM_MSG is not None

    def test_color_pair_ui(self):
        """Test UI element color pairs."""
        from astrbot.tui.screen import ColorPair
        assert ColorPair.INPUT_BG is not None
        assert ColorPair.STATUS_BG is not None
        assert ColorPair.BORDER is not None


class TestTuiBoxDrawing:
    """Tests for TUI box drawing characters."""

    def test_box_vertical(self):
        """Test vertical box character."""
        from astrbot.tui.screen import BOX_VERT
        assert BOX_VERT == "│"

    def test_box_horizontal(self):
        """Test horizontal box character."""
        from astrbot.tui.screen import BOX_HORIZ
        assert BOX_HORIZ == "─"

    def test_box_corners(self):
        """Test box corner characters."""
        from astrbot.tui.screen import BOX_TL, BOX_TR, BOX_BL, BOX_BR
        assert BOX_TL == "┌"
        assert BOX_TR == "┐"
        assert BOX_BL == "└"
        assert BOX_BR == "┘"

    def test_box_junctions(self):
        """Test box junction characters."""
        from astrbot.tui.screen import BOX_LT, BOX_RT, BOX_BT, BOX_TT, BOX_CROSS
        assert BOX_LT is not None
        assert BOX_RT is not None
        assert BOX_BT is not None
        assert BOX_TT is not None
        assert BOX_CROSS is not None


class TestTuiInit:
    """Tests for TUI __init__ module."""

    def test_tui_init_imports(self):
        """Test that TUI modules can be imported."""
        # These should not raise
        from astrbot.tui import Screen
        from astrbot.tui import run_curses

    def test_tui_exports(self):
        """Test TUI module exports."""
        from astrbot.tui import __all__
        assert isinstance(__all__, list)


class TestTuiApp:
    """Tests for TUI application."""

    def test_tui_app_exists(self):
        """Test TUI app module exists."""
        from astrbot.tui import tui_app
        assert tui_app is not None

    def test_tui_main_exists(self):
        """Test TUI main module exists."""
        from astrbot.tui import __main__
        assert __main__ is not None