/*
 * Copyright 2020 Fluence Labs Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#![deny(
    dead_code,
    nonstandard_style,
    unused_imports,
    unused_mut,
    unused_variables,
    unused_unsafe,
    unreachable_patterns
)]
#![warn(rust_2018_idioms)]
#![recursion_limit = "1024"]

use proc_macro2::TokenStream;

pub const FORMAT_STRING: &str = "%H:%M:%S / %Y-%m-%d";

pub fn build_timestamp() -> TokenStream {
    let time = chrono::Utc::now();
    let formatted_time = time.format(FORMAT_STRING);

    let out_str = format!(r#"const __FCE_SDK_BUILD_TIME: &str = {}"#, formatted_time);

    out_str.parse().expect("time formatting should be correct")
}