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use crate::{ComponentRegistration, ComponentRegistrationBuilder, TypeRegistry};
use bevy_app::AppBuilder;
use bevy_ecs::{Component, FromResources};
use bevy_property::{DeserializeProperty, Properties, Property};

pub trait RegisterType {
    fn register_component<T>(&mut self) -> &mut Self
    where
        T: Properties + DeserializeProperty + Component + FromResources;
    fn register_component_with<T>(
        &mut self,
        build: fn(ComponentRegistrationBuilder<T>) -> ComponentRegistrationBuilder<T>,
    ) -> &mut Self
    where
        T: Properties + DeserializeProperty + Component + FromResources;
    fn register_properties<T>(&mut self) -> &mut Self
    where
        T: Properties + DeserializeProperty + FromResources;
    fn register_property<T>(&mut self) -> &mut Self
    where
        T: Property + DeserializeProperty;
}

impl RegisterType for AppBuilder {
    fn register_component<T>(&mut self) -> &mut Self
    where
        T: Properties + DeserializeProperty + Component + FromResources,
    {
        {
            let type_registry = self.app.resources.get::<TypeRegistry>().unwrap();
            type_registry.component.write().register::<T>();
            type_registry.property.write().register::<T>();
        }
        self
    }

    fn register_properties<T>(&mut self) -> &mut Self
    where
        T: Properties + DeserializeProperty + Component + FromResources,
    {
        {
            let type_registry = self.app.resources.get::<TypeRegistry>().unwrap();
            type_registry.property.write().register::<T>();
        }
        self
    }

    fn register_property<T>(&mut self) -> &mut Self
    where
        T: Property + DeserializeProperty,
    {
        {
            let type_registry = self.app.resources.get::<TypeRegistry>().unwrap();
            type_registry.property.write().register::<T>();
        }
        self
    }

    fn register_component_with<T>(
        &mut self,
        build: fn(ComponentRegistrationBuilder<T>) -> ComponentRegistrationBuilder<T>,
    ) -> &mut Self
    where
        T: Properties + DeserializeProperty + Component + FromResources,
    {
        {
            let mut builder = ComponentRegistration::build::<T>();
            builder = build(builder);
            let type_registry = self.app.resources.get::<TypeRegistry>().unwrap();
            type_registry
                .component
                .write()
                .add_registration(builder.finish());
            type_registry.property.write().register::<T>();
        }
        self
    }
}