fn help() {
    println!("\n\nHELP: tangled-on-commit\n\n")
}

#[derive(Debug)]
struct Config {
    handle: String, 
    repo_name: String,
    shell: String,
}

fn load_config() -> Result<Config, ()> {
    // load config from cli args if present
    // if omitted, fallback to a local `tangled-on-commit.json` file
    // if key omitted or file not found, fall back to env
    // if env omitted, error out and quit

    return Ok(Config {
        handle: String::from(""),
        repo_name: String::from(""),
        shell: String::from("")
    });
}

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

    // load configuration
    let config = match load_config() {
        Ok(res) => res,
        Err(_) => {
            // q
            return Err(())
        }
    };
    println!("{:#?}", config);

    // resolve handle to did
    // resolve did+repoName to knotserver
    
    // connect to /events on knotserver

    // on event:
    //   parse json
    //   validate meets expected schema (allow unknown vals)
    //   filter by did and reponame
    //     exec shell command in user shell (/bin/sh as fallback)

    return Ok(())
}