extern crate toml;

use std::fs::File;
use std::io::prelude::*;

#[derive(Debug, Deserialize, Clone)]
pub struct Config {
    pub audio: AudioConfig,
    pub output: OutputConfig,
}

#[derive(Debug, Deserialize, Clone)]
pub struct AudioConfig {
    pub alsa_device: String,
    pub rate: u32,
}

#[derive(Debug, Deserialize, Clone)]
pub struct OutputConfig {
    pub directory: String,
    pub prefix: String,
}



pub fn read_config(path: &str) -> Config {

    let mut config_toml = String::new();

    let mut file = match File::open(path) {
        Ok(file) => file,
        Err(_) => panic!("Could not find config file!"),
    };

    file.read_to_string(&mut config_toml)
        .unwrap_or_else(|err| panic!("Error while reading config: [{}]", err));

    let config: Config = toml::from_str(&config_toml).unwrap_or_else(|err| {
        panic!("Error while parsing config: [{}]",  err)
    });

    return config;
}