import math

from typing import List, Tuple

from PySide6.QtCore import Qt

from PySide6.QtGui import QBrush, QPainter

from PySide6.QtWidgets import QGraphicsItemGroup
from PySide6.QtWidgets import (
    QStyleOptionGraphicsItem,
    QWidget,
)

from grid.ui.items import (
    HPSphereGraphicsItem,
    ArcGraphicsItem,
    LineGraphicsItem,
    random_sphere_factory,
)


class Pattern(QGraphicsItemGroup):
    PATTERN_WIDTH = 0
    SPACE_BETWEEN_SPHERE = 60

    def __init__(self, top_left_corner_x: int, top_left_corner_y: int) -> None:
        super().__init__()
        self.top_left_corner_x = top_left_corner_x
        self.top_left_corner_y = top_left_corner_y
        # center coordinates of the pattern
        self.center_x = top_left_corner_x + int(self.PATTERN_WIDTH / 2)
        self.center_y = top_left_corner_y + int(self.PATTERN_WIDTH / 2)

    def paint(
        self,
        painter: QPainter,
        option: QStyleOptionGraphicsItem,
        widget: QWidget | None = ...,
    ):
        super().paint(painter, option, widget)
        brush = QBrush(Qt.GlobalColor.gray)
        painter.setBrush(brush)
        painter.drawRect(
            self.top_left_corner_x,
            self.top_left_corner_y,
            self.PATTERN_WIDTH,
            self.PATTERN_WIDTH,
        )

    @staticmethod
    def generate_circle_points(
        center_x: int, center_y: int, radius: int, n_points: int
    ) -> List[Tuple[int, int]]:
        """generate coordinates of points on a circle equally spaced

        Args:
            self.center_x (int): center x coordinate
            self.center_y (int): center y coordinate
            radius (int): circle radius
            n_points (int): number of points on the circle to generate

        Returns:
            List[Tuple[int, int]]: list of points coordinates, (x,y)
        """
        points = []
        angle_step = 2 * math.pi / n_points

        for i in range(n_points):
            theta = i * angle_step
            x = int(center_x + radius * math.cos(theta))
            y = int(center_y + radius * math.sin(theta))
            points.append((x, y))

        return points


class LargeUltimaPattern(Pattern):
    """Common pattern on the sphere grid"""

    PATTERN_WIDTH = 350

    def __init__(self, top_left_corner_x: int, top_left_corner_y: int) -> None:
        super().__init__(top_left_corner_x, top_left_corner_y)

        # center

        line_start_x = self.center_x
        line_start_y = self.center_y
        line_end_x = self.center_x
        line_end_y = int(self.center_y + self.SPACE_BETWEEN_SPHERE)
        self.addToGroup(
            LineGraphicsItem(line_start_x, line_start_y, line_end_x, line_end_y, self)
        )

        line_start_x = self.center_x
        line_start_y = top_left_corner_y + self.SPACE_BETWEEN_SPHERE
        line_end_x = self.center_x
        line_end_y = line_start_y + self.SPACE_BETWEEN_SPHERE
        self.addToGroup(
            LineGraphicsItem(line_start_x, line_start_y, line_end_x, line_end_y, self)
        )

        self.addToGroup(HPSphereGraphicsItem(self.center_x, self.center_y))

        # first cercle
        sphere_on_circle = 4
        for i in range(sphere_on_circle):
            self.addToGroup(
                ArcGraphicsItem(
                    x_pos=self.center_x,
                    y_pos=self.center_y,
                    width=self.SPACE_BETWEEN_SPHERE * 2,
                    angle_start=(i * 360 / sphere_on_circle) % 360,
                    #angle_end=((i + 1) * 360 / sphere_on_circle) % 360,
                    angle_end=(360 / sphere_on_circle ),
                    parent=self,
                )
            )
        points = self.generate_circle_points(
            self.center_x, self.center_y, self.SPACE_BETWEEN_SPHERE, sphere_on_circle
        )
        for x, y in points:
            self.addToGroup(random_sphere_factory(x, y))

        # second cercle
        sphere_on_circle = 8
        points = self.generate_circle_points(
            self.center_x,
            self.center_y,
            self.SPACE_BETWEEN_SPHERE * 2,
            sphere_on_circle,
        )
        for i in range(sphere_on_circle):
            self.addToGroup(
                ArcGraphicsItem(
                    x_pos=self.center_x,
                    y_pos=self.center_y,
                    width=self.SPACE_BETWEEN_SPHERE * 4,
                    angle_start=int(i * 360 / sphere_on_circle) % 360,
                    angle_end=int((i + 1) * 360 / sphere_on_circle) % 360,
                    parent=self,
                )
            )
        for x, y in points:
            self.addToGroup(random_sphere_factory(x, y))
        # self.addToGroup(
        #    ArcGraphicsItem(
        #        self.center_x, self.center_y, self.SPACE_BETWEEN_SPHERE * 2, 0, 90, self
        #    )
        # )


class SmallZPattern(Pattern):
    """Small pattern used in the sphere grid"""

    PATTERN_WIDTH = 200

    def __init__(self, top_left_corner_x: int, top_left_corner_y: int) -> None:
        super().__init__(top_left_corner_x, top_left_corner_y)

        sphere_on_circle = 6
        for i in range(sphere_on_circle):
            if i == 2 or i == 3:
                continue
            else:
                self.addToGroup(
                    ArcGraphicsItem(
                        x_pos=self.center_x,
                        y_pos=self.center_y,
                        width=self.SPACE_BETWEEN_SPHERE * 2,
                        angle_start=(i * 360 / sphere_on_circle) % 360,
                        angle_end=int((i + 1) * 360 / sphere_on_circle) % 360,
                        parent=self,
                    )
                )
        points = self.generate_circle_points(
            self.center_x, self.center_y, self.SPACE_BETWEEN_SPHERE, sphere_on_circle
        )
        # Remove left and right sphere
        del points[0]
        del points[2]
        for x, y in points:
            self.addToGroup(random_sphere_factory(x, y))