use std::env;

use config::{Config, ConfigError};

#[derive(Debug, Deserialize, Default, Clone)]
pub struct Database {
    pub connection_string: String,
}

#[derive(Debug, Deserialize, Default, Clone)]
pub struct Application {
    pub url: String,
    pub default_language: String,
    pub fallback_language: String,
    pub loglevel: String,
    pub session_timeout: i64,
    pub upload_path: String,
    pub max_login_attempts: i32,
    pub login_lock_duration: i32,
    pub name: String,
    pub reset_password_token_valid_duration: i64,
    pub user_support_email: String,
    pub new_member_default_role: String,
    pub default_timezone: String,
}

#[derive(Debug, Deserialize, Default, Clone)]
pub struct Mail{
    pub from: String,
    pub reply_to: String,
    pub communication_email_type_id: String,
    pub smtp_host: String,
    pub smtp_username: String,
    pub smtp_password: String,
}

#[derive(Debug, Deserialize, Default, Clone)]
pub struct Api {
    pub default_pagination_limit: i64,
}

#[derive(Debug, Deserialize, Default, Clone)]
pub struct Billing {
    pub member_responsible_overwrites_permissions: bool,
    pub send_personnel_billing_to_email: bool,
    pub personnel_billing_emails: String,
    pub lump_sum_name: String,
    pub money_for_time_name: String,
}

#[derive(Debug, Deserialize, Default, Clone)]
pub struct Settings {
    pub database: Database,
    pub application: Application,
    pub mail: Mail,
    pub api: Api,
    pub billing: Billing,
}

impl Settings {
    pub fn new() -> Result<Self, ConfigError> {
        let env = env::var("RUN_MODE").unwrap_or("development".into());

        Config::builder()
            .add_source(config::File::with_name("config/default"))
            .add_source(config::File::with_name(&format!("config/{}", env)).required(false))
            // This file shouldn't be checked in to git:
            .add_source(config::File::with_name("config/local").required(false))
            .build()?.try_deserialize()
    }
}