# Copyright (c) 2020-2022, Manfred Moitzi
# License: MIT License
import pathlib
from typing import cast
import ezdxf

CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
    CWD = pathlib.Path(".")

# ------------------------------------------------------------------------------
# This example shows how to explode block references (INSERT entities).
#
# https://ezdxf.mozman.at/docs/tutorials/blocks.html
# ------------------------------------------------------------------------------


def main():
    doc = ezdxf.new("R2010")
    msp = doc.modelspace()

    block = doc.blocks.new(name="TEST")
    block.add_lwpolyline(
        [(0, 0), (1, 0), (1, 1), (0, 1)], close=True, dxfattribs={"color": 3}
    )
    block.add_circle((0.5, 0.5), 0.5, dxfattribs={"color": 1})
    block.add_text(
        "TEST", dxfattribs={"height": 0.1, "color": 5, "rotation": 45}
    ).set_pos((0.5, 0.5), align="MIDDLE_CENTER")
    block.add_spline(fit_points=[(0, 0), (0.4, 0.3), (0.6, 0.7), (1, 1)])
    block.add_ellipse(
        center=(0.5, 0.5),
        major_axis=(0.5, 0.5),
        ratio=0.5,
        dxfattribs={"color": 5},
    )
    block.add_lwpolyline(
        [(0, 1.1), (0.3, 1.1, -0.5), (0.7, 1.1), (1, 1.1)],
        format="xyb",
        dxfattribs={"color": 6},
    )

    # horizontal
    msp.add_blockref("TEST", (0, 0))
    msp.add_blockref("TEST", (2, 0)).set_scale(2)
    msp.add_blockref(
        "TEST", (5, 0), dxfattribs={"xscale": 2}
    )  # none uniform scaling

    # rotated 45 degrees
    msp.add_blockref("TEST", (0, 3), dxfattribs={"rotation": 45})
    msp.add_blockref("TEST", (2, 3), dxfattribs={"rotation": 45}).set_scale(2)
    msp.add_blockref(
        "TEST", (5, 3), dxfattribs={"xscale": 2, "rotation": 45}
    )  # none uniform scaling

    doc.set_modelspace_vport(4, center=(3, 3))
    doc.saveas(CWD / "scaling.dxf")

    # Explode flag block references
    for block in msp.query("INSERT[name=='TEST']"):
        cast("Insert", block).explode()

    doc.saveas(CWD / "exploded.dxf")


if __name__ == "__main__":
    main()