r"""
Version for trame 1.x - https://github.com/Kitware/trame/blob/release-v1/examples/VTK/SimpleCone/LocalRendering.py
Delta v1..v2          - https://github.com/Kitware/trame/commit/674f72774228bbcab5689417c1c5642230b1eab8

Installation requirements:
    pip install trame trame-vuetify trame-vtk
"""

from vtkmodules.vtkFiltersSources import vtkConeSource
from vtkmodules.vtkInteractionStyle import vtkInteractorStyleSwitch  # noqa
from vtkmodules.vtkRenderingCore import (
    vtkActor,
    vtkPolyDataMapper,
    vtkRenderer,
    vtkRenderWindow,
    vtkRenderWindowInteractor,
)

from trame.app import get_server
from trame.ui.vuetify import SinglePageLayout
from trame.widgets import vtk as vtk_widgets
from trame.widgets import vuetify

# -----------------------------------------------------------------------------
# Trame initialization
# -----------------------------------------------------------------------------

server = get_server(client_type="vue2")
state, ctrl = server.state, server.controller

state.trame__title = "VTK Remote View - Local Rendering"

# -----------------------------------------------------------------------------
# VTK pipeline
# -----------------------------------------------------------------------------

DEFAULT_RESOLUTION = 6

renderer = vtkRenderer()
renderWindow = vtkRenderWindow()
renderWindow.AddRenderer(renderer)

renderWindowInteractor = vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderWindowInteractor.GetInteractorStyle().SetCurrentStyleToTrackballCamera()

cone_source = vtkConeSource()
mapper = vtkPolyDataMapper()
actor = vtkActor()
mapper.SetInputConnection(cone_source.GetOutputPort())
actor.SetMapper(mapper)
renderer.AddActor(actor)
renderer.ResetCamera()
renderWindow.Render()

# -----------------------------------------------------------------------------
# Callbacks
# -----------------------------------------------------------------------------


@state.change("resolution")
def update_cone(resolution=DEFAULT_RESOLUTION, **kwargs):
    cone_source.SetResolution(resolution)
    ctrl.view_update()


def update_reset_resolution():
    state.resolution = DEFAULT_RESOLUTION


# -----------------------------------------------------------------------------
# GUI
# -----------------------------------------------------------------------------

with SinglePageLayout(server) as layout:
    layout.icon.click = ctrl.view_reset_camera
    layout.title.set_text("Cone Application")

    with layout.toolbar:
        vuetify.VSpacer()
        vuetify.VSlider(
            v_model=("resolution", DEFAULT_RESOLUTION),
            min=3,
            max=60,
            step=1,
            hide_details=True,
            dense=True,
            style="max-width: 300px",
        )
        vuetify.VDivider(vertical=True, classes="mx-2")
        with vuetify.VBtn(icon=True, click=update_reset_resolution):
            vuetify.VIcon("mdi-undo-variant")

    with layout.content:
        with vuetify.VContainer(
            fluid=True,
            classes="pa-0 fill-height",
        ):
            view = vtk_widgets.VtkLocalView(renderWindow, ref="view")
            ctrl.view_update = view.update
            ctrl.view_reset_camera = view.reset_camera

# -----------------------------------------------------------------------------
# Jupyter
# -----------------------------------------------------------------------------


def show(**kwargs):
    from trame.app import jupyter

    jupyter.show(server, **kwargs)


# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------

if __name__ == "__main__":
    server.start()