use dirs::config_dir;
use nostr_sdk::prelude::*;
use std::{fs, sync::OnceLock, time::Duration};

static CLIENT: OnceLock<Client> = OnceLock::new();

pub fn get_client() -> &'static Client {
    CLIENT.get_or_init(|| {
        // Setup app data folder
        let config_dir = config_dir().expect("Config directory not found");
        let app_dir = config_dir.join("Coop/");

        // Create app directory if it doesn't exist
        _ = fs::create_dir_all(&app_dir);

        // Setup database
        let lmdb = NostrLMDB::open(app_dir.join("nostr")).expect("Database is NOT initialized");

        // Client options
        let opts = Options::new()
            // NIP-65
            .gossip(true)
            // Skip all very slow relays
            .max_avg_latency(Duration::from_millis(800));

        // Setup Nostr Client
        ClientBuilder::default().database(lmdb).opts(opts).build()
    })
}