"""gr.Model3D() component."""

from __future__ import annotations

from pathlib import Path
from typing import Callable

from gradio_client.documentation import document

from gradio.components.base import Component
from gradio.data_classes import FileData
from gradio.events import Events


class CustomModel3D(Component):
    """
    Creates a component allows users to upload or view 3D Model files (.glb).

    Demos: model3D
    Guides: how-to-use-3D-model-component
    """

    EVENTS = [Events.change, Events.upload, Events.edit, Events.clear]

    data_model = FileData

    def __init__(
        self,
        value: str | Callable | None = None,
        *,
        clear_color: tuple[float, float, float, float] | None = None,
        camera_position: tuple[
            int | float | None, int | float | None, int | float | None
        ] = (
            None,
            None,
            None,
        ),
        zoom_speed: float = 1,
        pan_speed: float = 1,
        height: int | str | None = None,
        label: str | None = None,
        show_label: bool | None = None,
        every: float | None = None,
        container: bool = True,
        scale: int | None = None,
        min_width: int = 160,
        interactive: bool | None = None,
        visible: bool = True,
        elem_id: str | None = None,
        elem_classes: list[str] | str | None = None,
        render: bool = True,
    ):
        """
        Parameters:
            value: path to .glb file to show in model3D viewer. If callable, the function will be called whenever the app loads to set the initial value of the component.
            clear_color: background color of scene, should be a tuple of 4 floats between 0 and 1 representing RGBA values.
            camera_position: initial camera position of scene, provided as a tuple of `(alpha, beta, radius)`. Each value is optional. If provided, `alpha` and `beta` should be in degrees reflecting the angular position along the longitudinal and latitudinal axes, respectively. Radius corresponds to the distance from the center of the object to the camera.
            zoom_speed: the speed of zooming in and out of the scene when the cursor wheel is rotated or when screen is pinched on a mobile device. Should be a positive float, increase this value to make zooming faster, decrease to make it slower. Affects the wheelPrecision property of the camera.
            pan_speed: the speed of panning the scene when the cursor is dragged or when the screen is dragged on a mobile device. Should be a positive float, increase this value to make panning faster, decrease to make it slower. Affects the panSensibility property of the camera.
            height: The height of the model3D component, specified in pixels if a number is passed, or in CSS units if a string is passed.
            interactive: if True, will allow users to upload a file; if False, can only be used to display files. If not provided, this is inferred based on whether the component is used as an input or output.
            label: The label for this component. Appears above the component and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component is assigned to.
            show_label: if True, will display label.
            every: If `value` is a callable, run the function 'every' number of seconds while the client connection is open. Has no effect otherwise. The event can be accessed (e.g. to cancel it) via this component's .load_event attribute.
            container: If True, will place the component in a container - providing some extra padding around the border.
            scale: relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True.
            min_width: minimum pixel width, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in this Component being narrower than min_width, the min_width parameter will be respected first.
            visible: If False, component will be hidden.
            elem_id: An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.
            elem_classes: An optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles.
            render: If False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later.
        """
        self.clear_color = clear_color or [0, 0, 0, 0]
        self.camera_position = camera_position
        self.height = height
        self.zoom_speed = zoom_speed
        self.pan_speed = pan_speed
        super().__init__(
            label=label,
            every=every,
            show_label=show_label,
            container=container,
            scale=scale,
            min_width=min_width,
            interactive=interactive,
            visible=visible,
            elem_id=elem_id,
            elem_classes=elem_classes,
            render=render,
            value=value,
        )

    def preprocess(self, payload: FileData | None) -> str | None:
        """
        Parameters:
            payload: the uploaded file as an instance of `FileData`.
        Returns:
            Passes the uploaded file as a {str} filepath to the function.
        """
        if payload is None:
            return payload
        return payload.path

    def postprocess(self, value: str | Path | None) -> FileData | None:
        """
        Parameters:
            value: Expects function to return a {str} or {pathlib.Path} filepath of type (.obj, .glb, .stl, or .gltf)
        Returns:
            The uploaded file as an instance of `FileData`.
        """
        if value is None:
            return value
        return FileData(path=str(value), orig_name=Path(value).name)

    def process_example(self, input_data: str | Path | None) -> str:
        return Path(input_data).name if input_data else ""

    def example_inputs(self):
        # TODO: Use permanent link
        return "https://raw.githubusercontent.com/gradio-app/gradio/main/demo/model3D/files/Fox.gltf"
