from PyQt6.QtWidgets import QMainWindow, QVBoxLayout, QWidget, QPushButton, QGraphicsDropShadowEffect
from PyQt6.QtCore import Qt, pyqtSignal, QPoint
from PyQt6.QtGui import QMouseEvent, QColor
import time

class IconWindow(QMainWindow):
    """Окно с круглой иконкой приложения"""
    icon_clicked = pyqtSignal()

    def __init__(self, parent=None):
        super().__init__(parent)
        self.parent = parent
        self.dragging = False
        self.drag_offset = QPoint()
        self.setup_ui()

    def setup_ui(self):
        """Настраивает интерфейс иконки"""
        self.setWindowFlags(Qt.WindowType.FramelessWindowHint |
                            Qt.WindowType.WindowStaysOnTopHint |
                            Qt.WindowType.Tool)
        self.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
        self.setFixedSize(70, 70)

        self.moved = False
        self.start_position = None

        self.icon_widget = QWidget()
        self.icon_layout = QVBoxLayout(self.icon_widget)
        self.icon_layout.setContentsMargins(10, 10, 10, 10)

        self.icon_button = QPushButton("P")
        self.icon_button.setFixedSize(50, 50)
        self.icon_button.setStyleSheet("""
            QPushButton {
                background-color: rgba(30, 30, 30, 220);
                border-radius: 25px;
                color: white;
                font-size: 22px;
                font-weight: bold;
                border: 4px solid #8e44ad;
            }
            QPushButton:hover {
                background-color: rgba(0, 0, 0, 100);
            }
            QPushButton:pressed {
                background-color: rgba(0, 0, 0, 100);
            }
        """)
        self.icon_layout.addWidget(self.icon_button)

        # self.shadow = QGraphicsDropShadowEffect()
        # self.shadow.setBlurRadius(15)
        # self.shadow.setColor(QColor('#FFFFFF'))
        # self.shadow.setOffset(0, 0)

        # self.icon_widget.setGraphicsEffect(self.shadow)

        self.setCentralWidget(self.icon_widget)

        # Настраиваем обработчики мыши для перемещения
        self.icon_button.mousePressEvent = self.mouse_press_event
        self.icon_button.mouseMoveEvent = self.mouse_move_event
        self.icon_button.mouseReleaseEvent = self.mouse_release_event

    def mouse_press_event(self, event: QMouseEvent):
        """Обработчик нажатия мыши на иконку"""
        if event.button() == Qt.MouseButton.LeftButton:
            self.moved = True
            self.start_position = self.icon_button.mapToGlobal(event.position().toPoint())
            self.dragging = True
            self.drag_offset = event.position().toPoint()
            self.icon_button.setStyleSheet("""
                QPushButton {
                    background-color: rgba(0, 0, 0, 220);
                    border-radius: 25px;
                    color: white;
                    font-size: 22px;
                    font-weight: bold;
                    border: 3px solid #8e44ad;
                }
            """)
            # self.shadow.setColor(QColor('#de94fd'))
        event.accept()

    def mouse_move_event(self, event: QMouseEvent):
        """Обработчик движения мыши для иконки"""
        if self.dragging and event.buttons() & Qt.MouseButton.LeftButton:
            global_pos = self.icon_button.mapToGlobal(event.position().toPoint())
            new_pos = global_pos - self.drag_offset + QPoint(-10,-10)
            self.move(new_pos)
        event.accept()

    def mouse_release_event(self, event: QMouseEvent):
        """Обработчик отпускания мыши для иконки"""
        if event.button() == Qt.MouseButton.LeftButton and self.dragging:
            # Решение конфликта событий mouse_press_event и clicked
            end_position = self.icon_button.mapToGlobal(event.position().toPoint())
            if abs((self.start_position - end_position).x()) + abs((self.start_position - end_position).y()) < 40:
                self.icon_clicked.emit()
            self.dragging = False
            self.icon_button.setStyleSheet("""
                QPushButton {
                    background-color: rgba(30, 30, 30, 220);
                    border-radius: 25px;
                    color: white;
                    font-size: 22px;
                    font-weight: bold;
                    border: 4px solid #8e44ad;
                }
                QPushButton:hover {
                    background-color: rgba(0, 0, 0, 100);
                }
            """)
            # self.shadow.setColor(QColor('#FFFFFF'))
        event.accept()

    def show_icon(self):
        """Показывает иконку в левом нижнем углу"""
        screen_geometry = self.screen().geometry()
        x_position = screen_geometry.width() - 70
        y_position = screen_geometry.height() - 120
        self.move(x_position, y_position)
        self.show()