#![cfg_attr(docsrs, feature(doc_cfg))]

//! Core headless native renderer for Dioxus.
//!
//! ## Feature flags
//!  - `default`: Enables the features listed below.
//!  - `accessibility`: Enables [`accesskit`](https://docs.rs/accesskit/latest/accesskit/) accessibility support.
//!  - `hot-reload`: Enables hot-reloading of Dioxus RSX.
//!  - `menu`: Enables the [`muda`](https://docs.rs/muda/latest/muda/) menubar.
//!  - `tracing`: Enables tracing support.

mod dioxus_document;
mod events;
mod mutation_writer;
pub use dioxus_document::DioxusDocument;

use blitz_dom::{ns, LocalName, Namespace, QualName};
type NodeId = usize;

pub(crate) fn qual_name(local_name: &str, namespace: Option<&str>) -> QualName {
    QualName {
        prefix: None,
        ns: namespace.map(Namespace::from).unwrap_or(ns!(html)),
        local: LocalName::from(local_name),
    }
}

// Syntax sugar to make tracing calls less noisy in function below
macro_rules! trace {
    ($pattern:literal) => {{
        #[cfg(feature = "tracing")]
        tracing::info!($pattern);
    }};
    ($pattern:literal, $item1:expr) => {{
        #[cfg(feature = "tracing")]
        tracing::info!($pattern, $item1);
    }};
    ($pattern:literal, $item1:expr, $item2:expr) => {{
        #[cfg(feature = "tracing")]
        tracing::info!($pattern, $item1, $item2);
    }};
    ($pattern:literal, $item1:expr, $item2:expr, $item3:expr) => {{
        #[cfg(feature = "tracing")]
        tracing::info!($pattern, $item1, $item2);
    }};
    ($pattern:literal, $item1:expr, $item2:expr, $item3:expr, $item4:expr) => {{
        #[cfg(feature = "tracing")]
        tracing::info!($pattern, $item1, $item2, $item3, $item4);
    }};
}
pub(crate) use trace;