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//! # twilight-interactions-derive
//!
//! This crate provide derive macros for the `twilight-interactions` crate.
//!
//! Please refer to the `twilight-interactions` documentation for further information.

mod attributes;
mod fields;

mod command_model;
mod create_command;

use proc_macro::TokenStream;
use syn::{parse_macro_input, DeriveInput};

/// Derive macro for the the `CommandModel` trait.
///
/// See the documentation of the trait for more information about usage of this macro.
#[proc_macro_derive(CommandModel, attributes(command))]
pub fn command_model(input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as DeriveInput);

    match command_model::impl_command_model(input) {
        Ok(output) => output.into(),
        Err(error) => error.to_compile_error().into(),
    }
}

/// Derive macro for the the `CreateCommand` trait.
///
/// See the documentation of the trait for more information about usage of this macro.
#[proc_macro_derive(CreateCommand, attributes(command))]
pub fn create_command(input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as DeriveInput);

    match create_command::impl_create_command(input) {
        Ok(output) => output.into(),
        Err(error) => error.to_compile_error().into(),
    }
}