# ----------------------------------------------------------
# File __init__.py
# ----------------------------------------------------------

# Imports
# Check if this add-on is being reloaded
if "bpy" in locals():
    # reloading .py files
    import bpy
    import importlib

    # from . import zs_renderscene as zsrs
    # importlib.reload(zsrs)


# or if this is the first load of this add-on
else:
    import bpy
    import json
    from pathlib import Path

    # from . import zs_renderscene as zsrs  # noqa


# Addon info
bl_info = {
    "name": "ZS Stable Diffusion Connection V0.0.1",
    "author": "Sergiu <sergiu@zixelise.com>",
    "Version": (0, 0, 1),
    "blender": (4, 00, 0),
    "category": "Scene",
    "description": "Stable Diffusion Connection",
}


# -------------------------------------------------------------------
# Functions
# -------------------------------------------------------------------


def load_scene():
    print("Loading Scene")
    # load scene data
    # create parent collections
    create_parent_collections("01_Products")
    create_parent_collections("02_Elements")
    create_parent_collections("03_Shapes")
    # append products

    # append elements
    # append shapes
    # set lighting
    # set camera


def append_objects():
    print("Appending Objects")
    # append objects
    # set transforms


def create_parent_collections(group_name: str):

    if collection_exists(group_name):

        remove_collection_and_objects(group_name)
    else:
        create_collection(group_name)


def remove_collection_and_objects(collection_name):
    oldObjects = list(bpy.data.collections[collection_name].all_objects)
    for obj in oldObjects:
        bpy.data.objects.remove(obj, do_unlink=True)

    old_collection = bpy.data.collections[collection_name]
    if old_collection is not None:
        old_collection_names = get_subcollection_names(old_collection)
    else:
        print("Collection not found.")

    # print line break
    print("-----------------------------------------------------------------")
    print(old_collection_names)
    print("-----------------------------------------------------------------")
    for old_collection_name in old_collection_names:
        for collection in bpy.data.collections:
            if collection.name == old_collection_name:
                bpy.data.collections.remove(collection)

    bpy.ops.outliner.orphans_purge(
        do_local_ids=True, do_linked_ids=True, do_recursive=True
    )


def get_subcollection_names(collection):
    subcollection_names = []

    for child in collection.children:
        subcollection_names.append(child.name)
        subcollection_names.extend(get_subcollection_names(child))

    return subcollection_names


# function that checks if a collection exists
def collection_exists(collection_name):
    return collection_name in bpy.data.collections


# function that creates a new collection and adds it to the scene
def create_collection(collection_name):
    new_collection = bpy.data.collections.new(collection_name)
    bpy.context.scene.collection.children.link(new_collection)


# -------------------------------------------------------------------
# Operators
# -------------------------------------------------------------------
# load scene operator
class ZSSD_OT_LoadScene(bpy.types.Operator):
    bl_idname = "zs_sd_loader.load_scene"
    bl_label = "Load Scene"
    bl_description = "Load Scene"

    def execute(self, context):
        load_scene()
        return {"FINISHED"}


# parent class for panels
class ZSSDPanel:
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "ZS SD Loader"


# -------------------------------------------------------------------
#   Draw
# -------------------------------------------------------------------

# Panels


class ZSSD_PT_Main(ZSSDPanel, bpy.types.Panel):
    bl_label = "SD Loader"

    def draw(self, context):
        layout = self.layout

        scene = context.scene

        col = layout.column()

        self.is_connected = False

        col.label(text="Stable Diffusion Connection")

        # load scene button
        col.operator("zs_sd_loader.load_scene", text="Load Scene")


# modify after making products
blender_classes = [
    ZSSD_PT_Main,
    ZSSD_OT_LoadScene,
]


def register():

    # register classes
    for blender_class in blender_classes:
        bpy.utils.register_class(blender_class)

    # Has to be afqter class registering to correctly register property

    # register global properties

    # register list

    # list data

    # bpy.types.Scene.zs_product_list = bpy.props.CollectionProperty(
    #    type=ZS_Product_ListItem)

    # current item in list


def unregister():

    # unregister classes
    for blender_class in blender_classes:
        bpy.utils.unregister_class(blender_class)
    # unregister global properties

    # unregister list items
    # del bpy.types.Scene.my_list
    # del bpy.types.Scene.product_product_list_index