import sys
from pathlib import Path

import bpy

PROJECT_ROOT = Path(__file__).parents[2]
sys.path.insert(0, str(PROJECT_ROOT / "src"))
sys.path.insert(
    0,
    str(next((PROJECT_ROOT / "src" / "anyimage" / "wheels").glob("blendjob-*.whl"))),
)

from anyimage.common.object import (
    DEPTH_MATERIAL_NODE_GROUP_NAME,
    IMAGE_MATERIAL_NODE_GROUP_NAME,
)
from anyimage.common.node import load_node_group, node_asset_path
from anyimage.operators.cutout_tool.shape import (
    CUTOUT_NODE_GROUP_NAME,
    CUTOUT_NODE_GROUP_NAMES,
)


DEPTH_PLANE_NODE_GROUP_NAME = "O Image Depth Plane"


def input_names(group):
    return [
        item.name
        for item in group.interface.items_tree
        if item.item_type == "SOCKET" and item.in_out == "INPUT"
    ]


def main():
    bpy.ops.wm.read_factory_settings(use_empty=True)
    mesh_plane = load_node_group("O Mesh Plane")
    depth_plane = load_node_group(DEPTH_PLANE_NODE_GROUP_NAME)
    image_layer = load_node_group(IMAGE_MATERIAL_NODE_GROUP_NAME)
    depth_layer = load_node_group(DEPTH_MATERIAL_NODE_GROUP_NAME)
    shadeless = load_node_group("O Shadeless")
    cutout = load_node_group(CUTOUT_NODE_GROUP_NAME)
    cutout_groups = {
        name: bpy.data.node_groups[name] for name in CUTOUT_NODE_GROUP_NAMES.values()
    }
    expected_names = {
        "O Mesh Plane",
        DEPTH_PLANE_NODE_GROUP_NAME,
        IMAGE_MATERIAL_NODE_GROUP_NAME,
        DEPTH_MATERIAL_NODE_GROUP_NAME,
        "O Shadeless",
        CUTOUT_NODE_GROUP_NAME,
        *CUTOUT_NODE_GROUP_NAMES.values(),
    }
    with bpy.data.libraries.load(str(node_asset_path()), link=False) as (source, _):
        assert set(source.node_groups) == expected_names

    assert mesh_plane.name == "O Mesh Plane"
    assert mesh_plane.bl_idname == "GeometryNodeTree"
    assert mesh_plane.is_modifier
    assert input_names(mesh_plane) == [
        "Geometry",
        "Subdivide",
        "Thickness",
        "Material",
    ]
    assert depth_plane.bl_idname == "GeometryNodeTree"
    assert depth_plane.is_modifier
    assert input_names(depth_plane) == [
        "Geometry",
        "Subdivide",
        "Thickness",
        "Depth Amount",
        "Reference Depth",
        "Uniform Scale",
        "Depth Image",
        "Material",
    ]
    assert image_layer.bl_idname == "ShaderNodeTree"
    assert input_names(image_layer) == [
        "Color",
        "Alpha",
        "Normal",
        "Normal Scale",
        "Object Space",
        "Bump Scale",
    ]
    assert depth_layer.bl_idname == "ShaderNodeTree"
    assert input_names(depth_layer) == [
        "Color",
        "Alpha",
        "Depth",
        "Bump Scale",
    ]
    assert shadeless.name == "O Shadeless"
    assert shadeless.bl_idname == "ShaderNodeTree"
    assert input_names(shadeless) == ["Color"]

    assert cutout.name == CUTOUT_NODE_GROUP_NAME
    assert cutout.bl_idname == "GeometryNodeTree"
    assert cutout.is_modifier
    assert input_names(cutout)[:3] == ["Geometry", "Shape", "Thickness"]
    assert set(cutout_groups) == set(CUTOUT_NODE_GROUP_NAMES.values())
    for group in cutout_groups.values():
        assert group.bl_idname == "GeometryNodeTree"
        assert not group.is_modifier
        assert input_names(group)[0] == "Geometry"

    public_groups = {
        mesh_plane,
        depth_plane,
        image_layer,
        depth_layer,
        shadeless,
        cutout,
    }
    loaded = {*public_groups, *cutout_groups.values()}
    assert all(group.use_fake_user for group in public_groups)
    assert all(group.users > 0 for group in cutout_groups.values())
    if bpy.app.version >= (5, 0, 0):
        assert all(group.library is not None for group in loaded)
    print(
        f"Validated Blender {bpy.app.version_string}: "
        + ", ".join(sorted(group.name for group in loaded))
    )


if __name__ == "__main__":
    main()