"""
Unit tests for ImageStyle class and related styling functionality
"""

import pytest
from pyPhotoAlbum.models import ImageStyle, ImageData, PlaceholderData


class TestImageStyleInit:
    """Tests for ImageStyle initialization"""

    def test_default_initialization(self):
        """Test ImageStyle with default values"""
        style = ImageStyle()
        assert style.corner_radius == 0.0
        assert style.border_width == 0.0
        assert style.border_color == (0, 0, 0)
        assert style.shadow_enabled is False
        assert style.shadow_offset == (2.0, 2.0)
        assert style.shadow_blur == 3.0
        assert style.shadow_color == (0, 0, 0, 128)
        assert style.frame_style is None
        assert style.frame_color == (0, 0, 0)
        assert style.frame_corners == (True, True, True, True)

    def test_custom_initialization(self):
        """Test ImageStyle with custom values"""
        style = ImageStyle(
            corner_radius=15.0,
            border_width=2.5,
            border_color=(255, 0, 0),
            shadow_enabled=True,
            shadow_offset=(3.0, 4.0),
            shadow_blur=5.0,
            shadow_color=(0, 0, 0, 200),
            frame_style="leafy_corners",
            frame_color=(0, 128, 0),
            frame_corners=(True, False, True, False),
        )
        assert style.corner_radius == 15.0
        assert style.border_width == 2.5
        assert style.border_color == (255, 0, 0)
        assert style.shadow_enabled is True
        assert style.shadow_offset == (3.0, 4.0)
        assert style.shadow_blur == 5.0
        assert style.shadow_color == (0, 0, 0, 200)
        assert style.frame_style == "leafy_corners"
        assert style.frame_color == (0, 128, 0)
        assert style.frame_corners == (True, False, True, False)

    def test_frame_corners_none_defaults_to_all(self):
        """Test that frame_corners=None defaults to all corners"""
        style = ImageStyle(frame_corners=None)
        assert style.frame_corners == (True, True, True, True)


class TestImageStyleCopy:
    """Tests for ImageStyle.copy()"""

    def test_copy_creates_identical_style(self):
        """Test that copy creates an identical style"""
        original = ImageStyle(
            corner_radius=10.0,
            border_width=1.5,
            border_color=(128, 128, 128),
            shadow_enabled=True,
            frame_style="simple_line",
            frame_corners=(True, True, False, False),
        )
        copied = original.copy()

        assert copied.corner_radius == original.corner_radius
        assert copied.border_width == original.border_width
        assert copied.border_color == original.border_color
        assert copied.shadow_enabled == original.shadow_enabled
        assert copied.frame_style == original.frame_style
        assert copied.frame_corners == original.frame_corners

    def test_copy_is_independent(self):
        """Test that modifying copy doesn't affect original"""
        original = ImageStyle(corner_radius=5.0)
        copied = original.copy()
        copied.corner_radius = 20.0

        assert original.corner_radius == 5.0
        assert copied.corner_radius == 20.0


class TestImageStyleHasStyling:
    """Tests for ImageStyle.has_styling()"""

    def test_default_style_has_no_styling(self):
        """Test that default style has no styling"""
        style = ImageStyle()
        assert style.has_styling() is False

    def test_corner_radius_counts_as_styling(self):
        """Test that corner_radius > 0 counts as styling"""
        style = ImageStyle(corner_radius=5.0)
        assert style.has_styling() is True

    def test_border_width_counts_as_styling(self):
        """Test that border_width > 0 counts as styling"""
        style = ImageStyle(border_width=1.0)
        assert style.has_styling() is True

    def test_shadow_enabled_counts_as_styling(self):
        """Test that shadow_enabled counts as styling"""
        style = ImageStyle(shadow_enabled=True)
        assert style.has_styling() is True

    def test_frame_style_counts_as_styling(self):
        """Test that frame_style counts as styling"""
        style = ImageStyle(frame_style="simple_line")
        assert style.has_styling() is True


class TestImageStyleSerialization:
    """Tests for ImageStyle.serialize() and deserialize()"""

    def test_serialize_default_style(self):
        """Test serialization of default style"""
        style = ImageStyle()
        data = style.serialize()

        assert data["corner_radius"] == 0.0
        assert data["border_width"] == 0.0
        assert data["border_color"] == [0, 0, 0]
        assert data["shadow_enabled"] is False
        assert data["frame_style"] is None
        assert data["frame_corners"] == [True, True, True, True]

    def test_serialize_custom_style(self):
        """Test serialization of custom style"""
        style = ImageStyle(
            corner_radius=10.0,
            border_color=(255, 128, 0),
            frame_style="ornate_flourish",
            frame_corners=(False, True, False, True),
        )
        data = style.serialize()

        assert data["corner_radius"] == 10.0
        assert data["border_color"] == [255, 128, 0]
        assert data["frame_style"] == "ornate_flourish"
        assert data["frame_corners"] == [False, True, False, True]

    def test_deserialize_creates_correct_style(self):
        """Test deserialization creates correct style"""
        data = {
            "corner_radius": 15.0,
            "border_width": 2.0,
            "border_color": [100, 100, 100],
            "shadow_enabled": True,
            "shadow_offset": [3.0, 3.0],
            "shadow_blur": 4.0,
            "shadow_color": [0, 0, 0, 150],
            "frame_style": "leafy_corners",
            "frame_color": [50, 50, 50],
            "frame_corners": [True, False, True, False],
        }
        style = ImageStyle.deserialize(data)

        assert style.corner_radius == 15.0
        assert style.border_width == 2.0
        assert style.border_color == (100, 100, 100)
        assert style.shadow_enabled is True
        assert style.shadow_offset == (3.0, 3.0)
        assert style.shadow_blur == 4.0
        assert style.shadow_color == (0, 0, 0, 150)
        assert style.frame_style == "leafy_corners"
        assert style.frame_color == (50, 50, 50)
        assert style.frame_corners == (True, False, True, False)

    def test_deserialize_none_returns_default(self):
        """Test that deserialize(None) returns default style"""
        style = ImageStyle.deserialize(None)
        assert style.corner_radius == 0.0
        assert style.frame_style is None

    def test_deserialize_empty_dict_returns_defaults(self):
        """Test that deserialize({}) returns default values"""
        style = ImageStyle.deserialize({})
        assert style.corner_radius == 0.0
        assert style.border_width == 0.0
        assert style.frame_style is None
        assert style.frame_corners == (True, True, True, True)

    def test_serialize_deserialize_roundtrip(self):
        """Test that serialize/deserialize are inverse operations"""
        original = ImageStyle(
            corner_radius=12.0,
            border_width=1.5,
            border_color=(200, 100, 50),
            shadow_enabled=True,
            shadow_offset=(2.5, 3.5),
            shadow_blur=6.0,
            shadow_color=(10, 20, 30, 180),
            frame_style="victorian",
            frame_color=(100, 150, 200),
            frame_corners=(True, True, False, False),
        )

        data = original.serialize()
        restored = ImageStyle.deserialize(data)

        assert restored == original

    def test_deserialize_handles_missing_frame_corners(self):
        """Test backward compatibility - missing frame_corners defaults correctly"""
        data = {
            "corner_radius": 5.0,
            "border_width": 1.0,
            "border_color": [0, 0, 0],
            # No frame_corners key
        }
        style = ImageStyle.deserialize(data)
        assert style.frame_corners == (True, True, True, True)


class TestImageStyleEquality:
    """Tests for ImageStyle.__eq__()"""

    def test_identical_styles_are_equal(self):
        """Test that identical styles are equal"""
        style1 = ImageStyle(corner_radius=10.0, frame_style="simple_line")
        style2 = ImageStyle(corner_radius=10.0, frame_style="simple_line")
        assert style1 == style2

    def test_different_styles_are_not_equal(self):
        """Test that different styles are not equal"""
        style1 = ImageStyle(corner_radius=10.0)
        style2 = ImageStyle(corner_radius=20.0)
        assert style1 != style2

    def test_different_frame_corners_are_not_equal(self):
        """Test that different frame_corners make styles unequal"""
        style1 = ImageStyle(frame_corners=(True, True, True, True))
        style2 = ImageStyle(frame_corners=(True, False, True, False))
        assert style1 != style2

    def test_style_not_equal_to_non_style(self):
        """Test that style is not equal to non-style objects"""
        style = ImageStyle()
        assert style != "not a style"
        assert style != 123
        assert style != None


class TestImageDataWithStyle:
    """Tests for ImageData with styling"""

    def test_image_data_has_default_style(self):
        """Test that ImageData has a default style"""
        img = ImageData()
        assert hasattr(img, "style")
        assert isinstance(img.style, ImageStyle)
        assert img.style.corner_radius == 0.0

    def test_image_data_serialize_includes_style(self):
        """Test that ImageData serialization includes style"""
        img = ImageData()
        img.style.corner_radius = 15.0
        img.style.frame_style = "ornate_flourish"
        img.style.frame_corners = (True, False, False, True)

        data = img.serialize()

        assert "style" in data
        assert data["style"]["corner_radius"] == 15.0
        assert data["style"]["frame_style"] == "ornate_flourish"
        assert data["style"]["frame_corners"] == [True, False, False, True]

    def test_image_data_deserialize_restores_style(self):
        """Test that ImageData deserialization restores style"""
        img = ImageData()
        data = {
            "style": {
                "corner_radius": 20.0,
                "border_width": 2.0,
                "frame_style": "leafy_corners",
                "frame_corners": [False, True, False, True],
            }
        }
        img.deserialize(data)

        assert img.style.corner_radius == 20.0
        assert img.style.border_width == 2.0
        assert img.style.frame_style == "leafy_corners"
        assert img.style.frame_corners == (False, True, False, True)

    def test_image_data_deserialize_without_style(self):
        """Test backward compatibility - deserialize without style"""
        img = ImageData()
        data = {"image_path": "test.jpg"}
        img.deserialize(data)

        # Should have default style
        assert img.style.corner_radius == 0.0
        assert img.style.frame_style is None


class TestPlaceholderDataWithStyle:
    """Tests for PlaceholderData with styling"""

    def test_placeholder_has_default_style(self):
        """Test that PlaceholderData has a default style"""
        placeholder = PlaceholderData()
        assert hasattr(placeholder, "style")
        assert isinstance(placeholder.style, ImageStyle)

    def test_placeholder_serialize_includes_style(self):
        """Test that PlaceholderData serialization includes style"""
        placeholder = PlaceholderData()
        placeholder.style.corner_radius = 10.0
        placeholder.style.shadow_enabled = True
        placeholder.style.frame_corners = (True, True, False, False)

        data = placeholder.serialize()

        assert "style" in data
        assert data["style"]["corner_radius"] == 10.0
        assert data["style"]["shadow_enabled"] is True

    def test_placeholder_deserialize_restores_style(self):
        """Test that PlaceholderData deserialization restores style"""
        placeholder = PlaceholderData()
        data = {
            "style": {
                "corner_radius": 5.0,
                "border_width": 1.5,
                "frame_style": "double_line",
            }
        }
        placeholder.deserialize(data)

        assert placeholder.style.corner_radius == 5.0
        assert placeholder.style.border_width == 1.5
        assert placeholder.style.frame_style == "double_line"


class TestFrameCorners:
    """Tests specifically for frame_corners functionality"""

    def test_all_corners_true(self):
        """Test all corners enabled"""
        style = ImageStyle(frame_corners=(True, True, True, True))
        assert all(style.frame_corners)

    def test_no_corners(self):
        """Test no corners enabled"""
        style = ImageStyle(frame_corners=(False, False, False, False))
        assert not any(style.frame_corners)

    def test_diagonal_corners_only(self):
        """Test diagonal corners (TL, BR)"""
        style = ImageStyle(frame_corners=(True, False, True, False))
        tl, tr, br, bl = style.frame_corners
        assert tl is True
        assert tr is False
        assert br is True
        assert bl is False

    def test_opposite_diagonal_corners(self):
        """Test opposite diagonal corners (TR, BL)"""
        style = ImageStyle(frame_corners=(False, True, False, True))
        tl, tr, br, bl = style.frame_corners
        assert tl is False
        assert tr is True
        assert br is False
        assert bl is True

    def test_left_corners_only(self):
        """Test left side corners only"""
        style = ImageStyle(frame_corners=(True, False, False, True))
        tl, tr, br, bl = style.frame_corners
        assert tl is True
        assert tr is False
        assert br is False
        assert bl is True

    def test_right_corners_only(self):
        """Test right side corners only"""
        style = ImageStyle(frame_corners=(False, True, True, False))
        tl, tr, br, bl = style.frame_corners
        assert tl is False
        assert tr is True
        assert br is True
        assert bl is False

    def test_top_corners_only(self):
        """Test top corners only"""
        style = ImageStyle(frame_corners=(True, True, False, False))
        tl, tr, br, bl = style.frame_corners
        assert tl is True
        assert tr is True
        assert br is False
        assert bl is False

    def test_bottom_corners_only(self):
        """Test bottom corners only"""
        style = ImageStyle(frame_corners=(False, False, True, True))
        tl, tr, br, bl = style.frame_corners
        assert tl is False
        assert tr is False
        assert br is True
        assert bl is True
