use std::path::{Path, PathBuf};

use clap::Parser;

use crate::constants::{APP_NAME, CLIENTS_LIST_FILE, USERS_LIST_FILE};

/// Basic OIDC provider
#[derive(Parser, Debug, Clone)]
#[clap(author, version, about, long_about = None)]
pub struct AppConfig {
    /// Listen address
    #[clap(short, long, env, default_value = "0.0.0.0:8000")]
    pub listen_address: String,

    /// Storage path
    #[clap(short, long, env)]
    pub storage_path: String,

    /// App token token
    #[clap(short, long, env, default_value = "")]
    pub token_key: String,

    /// Website origin
    #[clap(short, long, env, default_value = "http://localhost:8000")]
    pub website_origin: String,

    /// Proxy IP, might end with a star "*"
    #[clap(short, long, env)]
    pub proxy_ip: Option<String>,
}

impl AppConfig {
    pub fn secure_cookie(&self) -> bool {
        self.website_origin.starts_with("https:")
    }

    pub fn storage_path(&self) -> &Path {
        self.storage_path.as_ref()
    }

    pub fn users_file(&self) -> PathBuf {
        self.storage_path().join(USERS_LIST_FILE)
    }

    pub fn clients_file(&self) -> PathBuf {
        self.storage_path().join(CLIENTS_LIST_FILE)
    }

    pub fn full_url(&self, uri: &str) -> String {
        if uri.starts_with('/') {
            format!("{}{}", self.website_origin, uri)
        } else {
            format!("{}/{}", self.website_origin, uri)
        }
    }

    pub fn domain_name(&self) -> &str {
        self.website_origin.split('/').nth(2).unwrap_or(APP_NAME)
    }
}