//! Two devices against a real, freshly started kestrove-server. Ignored by default.
//!
//! ```sh
//! # in kestrove-server (empty database, so it prints SETUP_TOKEN=… on boot):
//! KV_DATABASE=sqlite::memory: KV_BIND=127.0.0.1:8080 KV_PUBLIC_URL=http://127.0.0.1:8080 cargo run
//! # here:
//! KESTROVE_SERVER_URL=http://127.0.0.1:8080 KESTROVE_SETUP_TOKEN=<token> \
//!   cargo test -p kv-ffi --test live_server -- --ignored --nocapture
//! ```
//! The setup token works once, so restart the server with an empty database for every run.

use std::sync::Arc;

use kv_ffi::{CoreError, DeviceSigner, ItemDto, ItemKindDto, LoginResult, PlatformDto, VaultCore};
use kv_sync::signing::SoftwareSigner;
use uuid::Uuid;

struct Signer(SoftwareSigner);

impl DeviceSigner for Signer {
    fn device_id(&self) -> String {
        kv_sync::DeviceSigner::device_id(&self.0).to_string()
    }
    fn public_key(&self) -> Vec<u8> {
        kv_sync::DeviceSigner::public_key(&self.0)
    }
    fn sign(&self, message: Vec<u8>) -> Result<Vec<u8>, CoreError> {
        kv_sync::DeviceSigner::sign(&self.0, &message).map_err(|e| CoreError::Internal { msg: e.to_string() })
    }
}

fn connect(core: &VaultCore, url: &str, name: &str) {
    core.configure_server(url.into(), vec![]).unwrap();
    core.set_device_signer(Arc::new(Signer(SoftwareSigner::generate(Uuid::new_v4()))), name.into(), PlatformDto::Linux)
        .unwrap();
}

fn item(title: &str, password: &str) -> ItemDto {
    ItemDto {
        id: String::new(),
        kind: ItemKindDto::Login,
        title: title.into(),
        username: Some("me".into()),
        password: Some(password.into()),
        urls: vec!["https://example.com".into()],
        totp: None,
        notes: None,
        favorite: false,
        tags: vec![],
        modified_at: 0,
    }
}

#[tokio::test]
#[ignore = "needs a fresh local kestrove-server; see the module docs"]
async fn two_devices_against_local_server() {
    let url = std::env::var("KESTROVE_SERVER_URL").unwrap_or_else(|_| "http://127.0.0.1:8080".into());
    let token =
        std::env::var("KESTROVE_SETUP_TOKEN").expect("set KESTROVE_SETUP_TOKEN to the token the server printed");
    let pw = "a long master password for the live test";

    let a = VaultCore::new_in_memory();
    let sk = a.create_account(pw.into()).unwrap();
    connect(&a, &url, "device A");
    assert!(a.server_info().await.unwrap().setup_open, "server must be fresh (setup open)");
    a.register_account(token).await.unwrap();
    let id = a.save_item(item("Bank", "pw-a")).unwrap();
    let r = a.sync_now().await.unwrap();
    assert_eq!(r.pushed, 1);

    // The server allows 5 unauthenticated auth calls per minute per IP and both devices share one.
    tokio::time::sleep(std::time::Duration::from_secs(61)).await;
    let b = VaultCore::new_in_memory();
    connect(&b, &url, "device B");
    if b.login(pw.into(), sk.clone(), None).await.unwrap() == LoginResult::PendingApproval {
        let devices = a.list_devices().await.unwrap();
        let pending = devices.iter().find(|d| !d.approved).expect("B listed as pending");
        assert_eq!(pending.key_fingerprint, b.device_key_fingerprint().unwrap());
        a.approve_device(pending.device_id.clone()).await.unwrap();
        tokio::time::sleep(std::time::Duration::from_secs(61)).await; // rate limit again
        assert_eq!(b.login(pw.into(), sk.clone(), None).await.unwrap(), LoginResult::Ok);
    }
    b.sync_now().await.unwrap();
    assert_eq!(b.get_item(id.clone()).unwrap().password.as_deref(), Some("pw-a"));

    // Conflicting edits merge.
    let mut on_a = a.get_item(id.clone()).unwrap();
    on_a.notes = Some("A".into());
    a.save_item(on_a).unwrap();
    let mut on_b = b.get_item(id.clone()).unwrap();
    on_b.username = Some("b".into());
    b.save_item(on_b).unwrap();
    a.sync_now().await.unwrap();
    assert_eq!(b.sync_now().await.unwrap().merged, 1);
    a.sync_now().await.unwrap();
    let (ia, ib) = (a.get_item(id.clone()).unwrap(), b.get_item(id).unwrap());
    assert_eq!((ia.notes.as_deref(), ia.username.as_deref()), (Some("A"), Some("b")));
    assert_eq!((ib.notes, ib.username), (ia.notes, ia.username));

    b.logout().await.unwrap();
    println!("live sync OK against {url}");
}