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use proc_macro::TokenStream;
use syn::parse_quote;

mod message;
mod msg;

#[proc_macro]
pub fn msg(input: TokenStream) -> TokenStream {
    msg::msg_impl(input, parse_quote!(::elfo))
}

// TODO: is it enough to have only one `msg!` instead?
#[proc_macro]
pub fn msg_raw(input: TokenStream) -> TokenStream {
    msg::msg_impl(input, parse_quote!(elfo))
}

/// Derives required traits to use the type as a message or a message part.
///
/// Attributes:
/// * `part` — do not derive `Message`. Useful for parts of messages.
/// * `ret = SomeType` — also derive `Request` with the provided response type.
/// * `not(Debug)` — do not derive `Debug`. Useful for custom instances.
/// * `not(Clone)` — the same for `Clone`.
/// * `elfo = some::path` — override a path to elfo.
#[proc_macro_attribute]
pub fn message(attr: TokenStream, input: TokenStream) -> TokenStream {
    message::message_impl(attr, input)
}