use clap::{Parser, Subcommand};
use std::process;
use yampl;

#[derive(Parser)]
#[command(
        author="semichkin",
        version="0.0.10",
        about="cli utility for rendering templates with args described in yaml file",
        long_about = None
)]
pub struct Cli {
    #[command(subcommand)]
    pub command: Option<Commands>,
}

#[derive(Subcommand)]
pub enum Commands {
    Render {
        #[arg(short = 'c', long = "config")]
        config: String,

        #[arg(short = 'o', long = "output")]
        output: String,
    },
}

pub fn main() {
    let c = Cli::parse();

    let res = match &c.command {
        Some(Commands::Render { config, output }) => yampl::render(config.clone(), output.clone()),
        None => Ok(()),
    };

    if let Err(e) = res {
        println!("{}", e);
        process::exit(1);
    };
}