//! Main file runing kipt.

//!

use anyhow::Result;

use clap::Parser;

use std::fs::File;

use std::io::Read;

use tracing_subscriber::{fmt, layer::SubscriberExt, EnvFilter, Registry};

mod account;

mod args;

mod call;

mod declare;

mod deploy;

mod error;

mod invoke;

mod logger;

mod lua;

mod transaction;

const VERSION_STRING: &str = env!("CARGO_PKG_VERSION");

/// Runs main Kipt program.

fn main() -> Result<()> {

init_tracing();

let args = args::Args::parse();

if args.version {

println!("{}", VERSION_STRING);

return Ok(());

}

if let Some(lua) = &args.lua {

let program = load_file(&lua.to_string_lossy())?;

Ok(lua::execute(&program)?)

} else {

// Help will be printed out by Args.

Ok(())

}

}

/// Loads a file content as `String`.

///

/// # Arguments

///

/// * `file_path` - Path of the file to be loaded.

fn load_file(file_path: &str) -> Result<String> {

let mut file = File::open(file_path)?;

let mut file_contents = String::new();

file.read_to_string(&mut file_contents)?;

Ok(file_contents)

}

/// Initializes tracing.

fn init_tracing() {

tracing_log::LogTracer::init().expect("Setting log tracer failed.");

let env_filter = EnvFilter::from_default_env();

let fmt_layer = fmt::layer();

let subscriber = Registry::default().with(env_filter).with(fmt_layer);

tracing::subscriber::set_global_default(subscriber)

.expect("Setting default subscriber failed.");

}