from pxr import Sdf

# List of layer paths
layerPaths = [
    "<absolute-path-to-layer-file>/usd/LAYERS/moss-scatter-MID-SIDE-layer.usd",
    "<absolute-path-to-layer-file>/usd/LAYERS/moss-scatter-RIGHT-SIDE-layer.usd",
    "<absolute-path-to-layer-file>/usd/LAYERS/moss-scatter-LEFT-SIDE-layer.usd"
]

# Iterate over each layer path
for l in layerPaths:
    # Open the layer using FindOrOpen
    layer = Sdf.Layer.FindOrOpen(str(l))  # Ensure l is treated as a string
    if layer:  # Check if the layer was successfully opened
        Sdf.Layer.AddToMutedLayers(layer.identifier)
    else:
        print(f"Failed to open layer: {l}")

import keymaputils
keymaputils.importV1KeymapBindingsToKeymapFile(
    "C:\\Users\\<YOUR_USERNAME>\\Documents\\houdini20.5\\animgraphlab_hotkeys_20.5.keymap2", 
    "C:\\Users\\<YOUR_USERNAME>\\Documents\\houdini20.5\\animgraphlab_hotkeys.keymap", 
    "C:\\Users\\<YOUR_USERNAME>\\Documents\\houdini20.5\\animgraphlab_hotkeys_20.5_NEW.keymap2", 
    "KeymapName"
)

# get Karma LOP node
node = kwargs['node']

# get all parameters from Karma LOP
parm_group = node.parmTemplateGroup()

# get 'tonemap' parameter
tone_map_param = node.parm('tonemap')

# get parameters from 'tonemap'
tone_map_template = tone_map_param.parmTemplate()

# Update the menu item template with the new item template
tone_map_template.setMenuItems(tone_map_template.menuItems() + ('AnimGraphLab',))
tone_map_template.setMenuLabels(tone_map_template.menuLabels() + ('AnimGraphLab',))

print(parm_group.find('tonemap').menuLabels()) # ('No Tonemapping', 'Reinhard', 'Ward', 'Unreal', 'Aces', 'Hable', 'Hable2')

# Replace the existing menu template with the updated one
parm_group.replace('tonemap', tone_map_template)

print(parm_group.find('tonemap').menuLabels()) # ('No Tonemapping', 'Reinhard', 'Ward', 'Unreal', 'Aces', 'Hable', 'Hable2', 'AnimGraphLab')

# save Karma LOP parameters layout with new updates
node.setParmTemplateGroup(parm_group)

# get Karma LOP node
node = kwargs['node']

# get all parameters from Karma LOP
parm_group = node.parmTemplateGroup()

menu_template = hou.StringParmTemplate(name='tone_map', 
                                     label='Tonemap', 
                                     num_components=1,
                                     menu_items=('off', 'ward', 'unreal', 'aces', 'eminem'),
                                     menu_labels=('no tonemap', 'ward', 'unreal', 'aces', 'Eminem'),
                                     )

# insert menu items as a very first paramter
param_to_insert_before = parm_group.find("quicksetup")
parm_group.insertBefore(param_to_insert_before, menu_template)

desired_label = "AnimGraphLab"
existing_labels = menu_template.menuLabels()
if desired_label not in existing_labels:
  new_menu_items = menu_template.menuItems() + (desired_label,)
  new_menu_labels = existing_labels + (desired_label,)

  # Update the menu template
  menu_template.setMenuItems(new_menu_items)
  menu_template.setMenuLabels(new_menu_labels)

# Update the parameter template group with the modified menu
parm_group.replace('tone_map', menu_template)

# save Karma LOP parameters layout with new updates
node.setParmTemplateGroup(parm_group)

C:\Users\<YOUR_USER>\Documents\houdini<VERSION OF HOUDINI>\houdini.env