use std::env;
use std::sync::Arc;

pub struct ProxyConfiguration {
    pub local_port: u16,
    pub remote_domain: String,
    pub remote_port: u16,
    pub protocol: &'static str,
}

pub struct Configuration {
    pub imap_configuration: Arc<ProxyConfiguration>,
    pub smtp_configuration: Arc<ProxyConfiguration>,
}

impl Configuration {
    pub fn new() -> Self {
        Configuration {
            imap_configuration: Arc::new(ProxyConfiguration {
                local_port: env::var("LOCAL_IMAP_PORT")
                    .expect("LOCAL_IMAP_PORT not set")
                    .parse()
                    .expect("Invalid LOCAL_IMAP_PORT"),
                remote_domain: env::var("REMOTE_IMAP_DOMAIN").expect("REMOTE_IMAP_DOMAIN not set"),
                remote_port: env::var("REMOTE_IMAP_PORT")
                    .expect("REMOTE_IMAP_PORT not set")
                    .parse()
                    .expect("Invalid REMOTE_IMAP_PORT"),
                protocol: "IMAP",
            }),
            smtp_configuration: Arc::new(ProxyConfiguration {
                local_port: env::var("LOCAL_SMTP_PORT")
                    .expect("LOCAL_SMTP_PORT not set")
                    .parse()
                    .expect("Invalid LOCAL_SMTP_PORT"),
                remote_domain: env::var("REMOTE_SMTP_DOMAIN").expect("REMOTE_SMTP_DOMAIN not set"),
                remote_port: env::var("REMOTE_SMTP_PORT")
                    .expect("REMOTE_SMTP_PORT not set")
                    .parse()
                    .expect("Invalid REMOTE_SMTP_PORT"),
                protocol: "SMTP",
            }),
        }
    }
}