use super::{
    config::{Margins, WindowConfig},
    WindowingSystem,
};
use crate::errors::Result;
use slint_interpreter::ComponentDefinition;
use smithay_client_toolkit::reexports::protocols_wlr::layer_shell::v1::client::{
    zwlr_layer_shell_v1::{self},
    zwlr_layer_surface_v1::{Anchor, KeyboardInteractivity},
};
use std::marker::PhantomData;

pub struct NeedsComponent;
pub struct HasComponent;

pub struct WindowingSystemBuilder<State = NeedsComponent> {
    config: WindowConfig,
    _state: PhantomData<State>,
}

impl WindowingSystemBuilder<NeedsComponent> {
    #[inline]
    #[must_use]
    pub fn new(component_definition: ComponentDefinition) -> WindowingSystemBuilder<HasComponent> {
        WindowingSystemBuilder {
            config: WindowConfig::new(component_definition),
            _state: PhantomData,
        }
    }
}

impl WindowingSystemBuilder<HasComponent> {
    #[must_use]
    pub const fn with_height(mut self, height: u32) -> Self {
        self.config.height = height;
        self
    }

    #[must_use]
    pub const fn with_layer(mut self, layer: zwlr_layer_shell_v1::Layer) -> Self {
        self.config.layer = layer;
        self
    }

    #[must_use]
    pub const fn with_margin(mut self, top: i32, right: i32, bottom: i32, left: i32) -> Self {
        self.config.margin = Margins {
            top,
            right,
            bottom,
            left,
        };
        self
    }

    #[must_use]
    pub const fn with_anchor(mut self, anchor: Anchor) -> Self {
        self.config.anchor = anchor;
        self
    }

    #[must_use]
    pub const fn with_keyboard_interactivity(
        mut self,
        interactivity: KeyboardInteractivity,
    ) -> Self {
        self.config.keyboard_interactivity = interactivity;
        self
    }

    #[must_use]
    pub const fn with_exclusive_zone(mut self, zone: i32) -> Self {
        self.config.exclusive_zone = zone;
        self
    }

    #[must_use]
    pub fn with_namespace(mut self, namespace: String) -> Self {
        self.config.namespace = namespace;
        self
    }

    #[must_use]
    pub const fn with_scale_factor(mut self, scale_factor: f32) -> Self {
        self.config.scale_factor = scale_factor;
        self
    }

    #[allow(clippy::missing_errors_doc)]
    pub fn build(self) -> Result<WindowingSystem> {
        WindowingSystem::new(self.config)
    }
}