#![warn (clippy::pedantic)]

use std::{
	path::PathBuf,
};

use structopt::StructOpt;
use tokio::runtime;

use ptth_server::{
	load_toml,
	run_server,
};

#[derive (Debug, StructOpt)]
struct Opt {
	//#[structopt (long)]
	//file_server_root: Option <PathBuf>,
	
	#[structopt (long)]
	asset_root: Option <PathBuf>,
	
	#[structopt (long)]
	config_path: Option <PathBuf>,
	
	#[structopt (long)]
	name: Option <String>,
	
	#[structopt (long)]
	print_tripcode: bool,
	
	#[structopt (long)]
	relay_url: Option <String>,
}

#[derive (Default, serde::Deserialize)]
pub struct ConfigFile {
	pub name: Option <String>,
	pub api_key: String,
	pub relay_url: Option <String>,
	pub file_server_root: Option <PathBuf>,
}

fn main () -> Result <(), anyhow::Error> {
	tracing_subscriber::fmt::init ();
	
	let opt = Opt::from_args ();
	let asset_root = opt.asset_root;
	
	let path = opt.config_path.clone ().unwrap_or_else (|| PathBuf::from ("./config/ptth_server.toml"));
	let config_file: ConfigFile = load_toml::load (&path)?;
	
	let config_file = ptth_server::ConfigFile {
		name: opt.name.or (config_file.name).expect ("`name` must be provided in command line or config file"),
		api_key: config_file.api_key,
		relay_url: opt.relay_url.or (config_file.relay_url).expect ("`relay_url` must be provided in command line of config file"),
		file_server_root: config_file.file_server_root,
	};
	
	if opt.print_tripcode {
		println! (r#"name = "{}""#, config_file.name);
		println! (r#"tripcode = "{}""#, config_file.tripcode ());
		return Ok (());
	}
	
	let rt = runtime::Runtime::new ()?;
	
	rt.block_on (async move {
		run_server (
			config_file, 
			ptth_core::graceful_shutdown::init (),
			Some (path),
			asset_root
		).await
	})?;
	
	Ok (())
}