// auto-imports
use crate::config::Config;

// std
use std::{
    fs::{read_to_string, write},
    error::Error,
};

// log
use log::debug;

/// Reads last tweet id from a file
pub fn read_state(s: &str) -> Option<u64> {
    let state = read_to_string(s);

    if let Ok(s) = state {
        debug!("Last Tweet ID (from file): {}", &s);
        return s.parse::<u64>().ok();
    }

    None
}

/// Writes last treated tweet id to a file
pub fn write_state(f: &str, s: u64) -> Result<(), std::io::Error> {
    write(f, format!("{}", s))
}

/*********
 * Main functions
*********/
/// Initiates the DB from path
pub fn init_db(config: &Config) -> Result<(), Box<dyn Error>> {
    println!("config.scootaloo.db_path: {}", config.scootaloo.db_path);
    Ok(())
}