# ###########################################################################################
# THE UNUSED LIBS MAY BE USED FURTHER AWAY BY IMPORTING FROM THIS FILE - DON'T REMOVE THEM
# ###########################################################################################

from PyQt6.QtCore import Qt
from shapely import MultiLineString, Polygon

import numpy as np

import logging

log = logging.getLogger('base')


class DrawToolShape(object):
    """
    Encapsulates "shapes" under a common class.
    """

    tolerance = None

    @staticmethod
    def get_pts(o):
        """
        Returns a list of all points in the object, where
        the object can be a Polygon, Not a polygon, or a list
        of such. Search is done recursively.

        :param o: geometric object
        :return: List of points
        :rtype: list
        """
        pts = []

        # ## Iterable: descend into each item.
        try:
            for sub_o in o:
                pts += DrawToolShape.get_pts(sub_o)
        # Non-iterable
        except TypeError:
            if o is None:
                return

            # DrawToolShape: descend into .geo.
            if isinstance(o, DrawToolShape):
                pts += DrawToolShape.get_pts(o.geo)
            # ## Descend into .exerior and .interiors
            elif type(o) == Polygon:
                pts += DrawToolShape.get_pts(o.exterior)
                for i in o.interiors:
                    pts += DrawToolShape.get_pts(i)
            elif type(o) == MultiLineString:
                for line in o:
                    pts += DrawToolShape.get_pts(line)
            # ## Has .coords: list them.
            else:
                if DrawToolShape.tolerance is not None:
                    pts += list(o.simplify(DrawToolShape.tolerance).coords)
                else:
                    pts += list(o.coords)
        return pts

    def __init__(self, geo=None):

        # Shapely type or list of such
        self.geo = geo
        self.utility = False


class DrawToolUtilityShape(DrawToolShape):
    """
    Utility shapes are temporary geometry in the editor
    to assist in the creation of shapes. For example it
    will show the outline of a rectangle from the first
    point to the current mouse pointer before the second
    point is clicked and the final geometry is created.
    """

    def __init__(self, geo=None):
        super(DrawToolUtilityShape, self).__init__(geo=geo)
        self.utility = True


class DrawTool(object):
    """
    Abstract Class representing a tool in the drawing
    program. Can generate geometry, including temporary
    utility geometry that is updated on user clicks
    and mouse motion.
    """

    def __init__(self, draw_app):
        self.draw_app = draw_app
        self.complete = False
        self.points = []
        self.geometry = None  # DrawToolShape or None

    def click(self, point):
        """
        :param point: [x, y] Coordinate pair.
        """
        return ""

    def click_release(self, point):
        """
        :param point: [x, y] Coordinate pair.
        """
        return ""

    def on_key(self, key):
        # Jump to coords
        if key == Qt.Key.Key_J or key == 'J':
            self.draw_app.app.on_jump_to()

    def utility_geometry(self, data=None):
        return None

    @staticmethod
    def bounds(obj):
        def bounds_rec(o):
            if type(o) is list:
                minx = np.inf
                miny = np.inf
                maxx = -np.inf
                maxy = -np.inf

                for k in o:
                    try:
                        minx_, miny_, maxx_, maxy_ = bounds_rec(k)
                    except Exception as e:
                        log.error("camlib.Gerber.bounds() --> %s" % str(e))
                        return

                    minx = min(minx, minx_)
                    miny = min(miny, miny_)
                    maxx = max(maxx, maxx_)
                    maxy = max(maxy, maxy_)
                return minx, miny, maxx, maxy
            else:
                # it's a Shapely object, return it's bounds
                if 'solid' in o.geo:
                    return o.geo['solid'].bounds

        return bounds_rec(obj)


class ShapeToolEditorGrb(DrawTool):
    """
    Abstract class for tools that create a shape.
    """

    def __init__(self, draw_app):
        DrawTool.__init__(self, draw_app)
        self.name = None

    def make(self):
        pass