use std::sync::Arc;

use anyhow::{bail, Result};
use rusoto_signature::Region;

use crate::config::*;
use crate::login::{ldap_provider::*, static_provider::*, *};

pub struct Mailstore {
    pub login_provider: Box<dyn LoginProvider + Send + Sync>,
}
impl Mailstore {
    pub fn new(config: Config) -> Result<Arc<Self>> {
        let s3_region = Region::Custom {
            name: config.aws_region.clone(),
            endpoint: config.s3_endpoint,
        };
        let k2v_region = Region::Custom {
            name: config.aws_region,
            endpoint: config.k2v_endpoint,
        };
        let login_provider: Box<dyn LoginProvider + Send + Sync> =
            match (config.login_static, config.login_ldap) {
                (Some(st), None) => Box::new(StaticLoginProvider::new(st, k2v_region, s3_region)?),
                (None, Some(ld)) => Box::new(LdapLoginProvider::new(ld, k2v_region, s3_region)?),
                (Some(_), Some(_)) => {
                    bail!("A single login provider must be set up in config file")
                }
                (None, None) => bail!("No login provider is set up in config file"),
            };
        Ok(Arc::new(Self { login_provider }))
    }
}