objstor 0.4.20

use crate::AppResult;
use config::Config;
use serde::Deserialize;
use std::env;

#[derive(Debug, Clone, Default, Deserialize, PartialEq, Eq)]
pub struct AppConfig {
    pub port: u16,
    pub host: String,
}

impl AppConfig {
    pub async fn from_config(path: &str) -> AppResult<AppConfig> {
        let config = Config::builder()
            .add_source(config::File::with_name(path).required(false))
            .add_source(config::Environment::with_prefix("APP"))
            .set_default(
                "port",
                env::var("PORT").unwrap_or_else(|_| "8080".to_owned()),
            )?
            .set_default(
                "host",
                env::var("HOST").unwrap_or_else(|_| "::1".to_owned()),
            )?
            .build()
            .unwrap();

        let appconfig: AppConfig = config.try_deserialize().unwrap();
        Ok(appconfig)
    }
}