//Prereq - cargo add clap --features derive
#![allow(unused)]
///Using clap - command line argument parser
use clap::Parser;

/// Search for a pattern in a file and display the lines that contain it.
#[derive(Parser)]
struct Cli {
    /// The pattern to look for
    pattern: String,
    /// The path to the file to read
    #[clap(parse(from_os_str))]
    path: std::path::PathBuf,
}

fn main() {

    let args = Cli::parse();
    let content = std::fs::read_to_string(&args.path)
        .expect("could not read file");

    for line in content.lines() {
        if line.contains(&args.pattern) {
            println!("{}", line);
        }
    }

}