use directories_next::BaseDirs;
use serde::Deserialize;
use std::str::FromStr;

#[derive(Debug, Deserialize)]
pub struct Config {
    #[serde(with = "serde_with::rust::display_fromstr")]
    pub log_level: log::Level,
}

impl Default for Config {
    fn default() -> Self {
        Self {
            log_level: log::Level::from_str("info").unwrap(),
        }
    }
}

pub fn load_config() -> Result<Config, Box<dyn std::error::Error>> {
    if let Some(base_dirs) = BaseDirs::new() {
        let config_dir = base_dirs.config_dir();

        let config_file = std::fs::File::open(config_dir.join("musicutil.yaml"));
        if config_file.is_err() {
            return Ok(Config::default());
        }

        let config: Result<Config, serde_yaml::Error> =
            serde_yaml::from_reader(config_file.unwrap());
        match config {
            Ok(conf) => return Ok(conf),
            Err(err) => return Err(Box::new(err)),
        }
    }

    return Ok(Config::default());
}