use std::{collections::HashMap, net::{IpAddr, Ipv4Addr}, path::{Path, PathBuf}, sync::LazyLock};

use crate::{config::{P2pConfig, PartialP2pConfig, StorageConfig}, error::Error};
use futures::StreamExt;
use libp2p::{swarm::SwarmEvent, Multiaddr, PeerId};
use sea_orm::{prelude::*, Database};
use sea_orm_migration::MigratorTrait;
use tokio::sync::{OnceCell, RwLock};

mod peers;
pub use peers::GlobalPeers;
mod config;
pub use config::*;
mod database_connection;
pub use database_connection::*;
use uuid::{ContextV7, Timestamp, Uuid};

pub fn generate_uuid() -> Uuid {
    Uuid::new_v7(Timestamp::now(ContextV7::new()))
}

pub static PRODUCT_NAME: LazyLock<String> = LazyLock::new(|| {
    env!("CARGO_PKG_NAME").to_string()
});

pub static DEFAULT_LISTEN_IPS: &[IpAddr] = &[IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0))];

pub static DEFAULT_CONFIG_FILE_NAME: LazyLock<PathBuf> = LazyLock::new(|| {
    PathBuf::from(String::new() + env!("CARGO_PKG_NAME") + ".toml")
});


pub static DEFAULT_DATABASE_FILE_NAME: LazyLock<PathBuf> = LazyLock::new(|| {
    PathBuf::from(String::new() + env!("CARGO_PKG_NAME") + ".sqlite")
});

#[cfg(test)]
pub struct TestGlobal {
    pub storage_config: &'static StorageConfig,
    pub data_database_connection: &'static DatabaseConnection,
    pub cache_database_connection: &'static DatabaseConnection,
}

#[cfg(test)]
mod tests {
    use crate::{cache::migration::CacheMigrator, data::migration::DataMigrator};

    use super::*;
    static TEST_DATA_DIRECTORY: LazyLock<PathBuf> = todo!();
    static TEST_DATA_DATABASE_PATH: LazyLock<PathBuf> = todo!();
    static TEST_CACHE_DIRECTORY: LazyLock<PathBuf> = todo!();
    static TEST_CACHE_DATABASE_PATH: LazyLock<PathBuf> = todo!();
    static TEST_STORAGE_CONFIG: LazyLock<StorageConfig> = todo!();
    
    pub async fn get_or_try_init_test() -> TestGlobal {
        TestGlobal {
            storage_config: get_or_init_storage_config(StorageConfig{data_directory: TEST_DATA_DIRECTORY.clone(), cache_directory: TEST_CACHE_DIRECTORY.clone()}).await,
            data_database_connection: get_or_try_init_data_database_connection(&*TEST_DATA_DATABASE_PATH, DataMigrator ).await.unwrap(),
            cache_database_connection: get_or_try_init_cache_database_connection(&*TEST_CACHE_DATABASE_PATH, CacheMigrator).await.unwrap(),
        }
    }
}