use anyhow::Result;

use jsonrpsee::rpc_params;
use jsonrpsee::ws_client::WsClientBuilder;
use jsonrpsee_core::client::ClientT;
use jsonrpsee_core::params::ObjectParams;

use sequential_test::sequential;

use std::collections::HashMap;
use std::sync::Arc;
use std::time::Duration;
use swap::api::request::{Method, Params, Request, Shutdown};
use swap::api::Context;
use swap::cli::command::{Bitcoin, Monero};

use tokio::sync::broadcast;

use uuid::Uuid;

#[cfg(test)]

// to be replaced with actual "real" testing values
// need to create some kind of swap database and bitcoin environment with some
// funds
const SERVER_ADDRESS: &str = "127.0.0.1:1234";
const BITCOIN_ADDR: &str = "tb1qr3em6k3gfnyl8r7q0v7t4tlnyxzgxma3lressv";
const MONERO_ADDR: &str = "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a";
const SELLER: &str =
    "/ip4/127.0.0.1/tcp/9939/p2p/12D3KooWCdMKjesXMJz1SiZ7HgotrxuqhQJbP5sgBm2BwP1cqThi";
const SWAP_ID: &str = "ea030832-3be9-454f-bb98-5ea9a788406b";

pub async fn initialize_context() -> (Arc<Context>, Request) {
    let (is_testnet, debug, json) = (true, false, false);
    // let data_dir = data::data_dir_from(None, is_testnet).unwrap();
    let server_address = None;
    let (tx, _) = broadcast::channel(1);

    let bitcoin = Bitcoin {
        bitcoin_electrum_rpc_url: None,
        bitcoin_target_block: None,
    };

    let _monero = Monero {
        monero_daemon_address: None,
    };

    let request = Request::new(tx.subscribe(), Method::StartDaemon, Params::default());

    let context = Context::build(
        Some(bitcoin),
        None,
        None,
        None,
        is_testnet,
        debug,
        json,
        server_address,
        tx,
    )
    .await
    .unwrap();

    (Arc::new(context), request)
}

#[tokio::test]
#[sequential]
pub async fn can_start_server() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });
    tokio::time::sleep(Duration::from_secs(3)).await;
    ctx.shutdown.send(());
    assert!(true);
}

#[tokio::test]
#[sequential]
pub async fn get_bitcoin_balance() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let response: HashMap<String, i32> = client
        .request("get_bitcoin_balance", rpc_params!["id"])
        .await
        .unwrap();

    assert_eq!(response, HashMap::from([("balance".to_string(), 0)]));
    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn get_history() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();

    let response: HashMap<String, Vec<(Uuid, String)>> =
        client.request("get_history", params).await.unwrap();
    let swaps: Vec<(Uuid, String)> = Vec::new();

    assert_eq!(response, HashMap::from([("swaps".to_string(), swaps)]));
    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn get_raw_history() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();
    let raw_history: HashMap<Uuid, String> = HashMap::new();

    let response: HashMap<String, HashMap<Uuid, String>> =
        client.request("get_raw_history", params).await.unwrap();

    assert_eq!(
        response,
        HashMap::from([("raw_history".to_string(), raw_history)])
    );
    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn get_seller() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();

    let response: Result<HashMap<String, String>, _> = client.request("get_seller", params).await;

    // We should ideally match the expected error and panic if it's different one,
    // but the request returns a custom error (to investigate)
    // Err(jsonrpsee_core::Error::Call(CallError::InvalidParams(e))) => (),
    // Err(e) => panic!("ErrorType was not ParseError but {e:?}"),

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when swap_id is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("swap_id", "invalid_swap");

    let response: Result<HashMap<String, String>, _> = client.request("get_seller", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error swap_id is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("swap_id", SWAP_ID);

    let response: Result<HashMap<String, String>, _> = client.request("get_seller", params).await;

    match response {
        Ok(hash) => (),
        Err(e) => panic!(
            "Expected a HashMap with correct params, got an error: {}",
            e
        ),
    }
    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn get_swap_start_date() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();

    let response: Result<HashMap<String, String>, _> =
        client.request("get_swap_start_date", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when swap_id is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("swap_id", "invalid_swap");

    let response: Result<HashMap<String, String>, _> =
        client.request("get_swap_start_date", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when swap_id is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("swap_id", SWAP_ID);

    let response: Result<HashMap<String, String>, _> =
        client.request("get_swap_start_date", params).await;

    match response {
        Ok(hash) => (),
        Err(e) => panic!("Expected a HashMap, got an error: {}", e),
    }
    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn resume_swap() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();

    let response: Result<HashMap<String, String>, _> =
        client.request("get_swap_start_date", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when swap_id is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("swap_id", "invalid_swap");

    let response: Result<HashMap<String, String>, _> =
        client.request("get_swap_start_date", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when swap_id is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("swap_id", SWAP_ID);

    let response: Result<HashMap<String, String>, _> =
        client.request("get_swap_start_date", params).await;

    match response {
        Ok(hash) => (),
        Err(e) => panic!("Expected a HashMap, got an error: {}", e),
    }
    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn withdraw_btc() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();

    let response: Result<HashMap<String, String>, _> = client.request("withdraw_btc", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when withdraw_address is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("address", "invalid_address");

    let response: Result<HashMap<String, String>, _> = client.request("withdraw_btc", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when withdraw_address is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("address", BITCOIN_ADDR);
    params.insert("amount", "0");

    let response: Result<HashMap<String, String>, _> = client.request("withdraw_btc", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when amount is 0"),
    }

    let mut params = ObjectParams::new();
    params.insert("address", BITCOIN_ADDR);
    params.insert("amount", "0.1");

    let response: Result<HashMap<String, String>, _> = client.request("withdraw_btc", params).await;

    match response {
        Ok(hash) => (),
        Err(e) => panic!("Expected a HashMap, got an error: {}", e),
    }

    ctx.shutdown.send(());
}

#[tokio::test]
#[sequential]
pub async fn buy_xmr() {
    let (ctx, mut request) = initialize_context().await;
    let move_ctx = Arc::clone(&ctx);
    tokio::spawn(async move {
        request.call(Arc::clone(&move_ctx)).await;
    });

    let url = format!("ws://{}", SERVER_ADDRESS);
    tokio::time::sleep(Duration::from_secs(3)).await;

    let client = WsClientBuilder::default().build(&url).await.unwrap();
    let mut params = ObjectParams::new();

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when no params are given"),
    }

    let mut params = ObjectParams::new();
    params.insert("bitcoin_change_address", BITCOIN_ADDR);
    params.insert("monero_receive_address", MONERO_ADDR);

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when seller is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("bitcoin_change_address", BITCOIN_ADDR);
    params.insert("seller", SELLER);

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when monero_receive_address is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("monero_receive_address", MONERO_ADDR);
    params.insert("seller", SELLER);

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when bitcoin_change_address is missing"),
    }

    let mut params = ObjectParams::new();
    params.insert("bitcoin_change_address", "invalid_address");
    params.insert("monero_receive_address", MONERO_ADDR);
    params.insert("seller", SELLER);

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when bitcoin_change_address is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("bitcoin_change_address", BITCOIN_ADDR);
    params.insert("monero_receive_address", "invalid_address");
    params.insert("seller", SELLER);

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when monero_receive_address is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("bitcoin_change_address", BITCOIN_ADDR);
    params.insert("monero_receive_address", MONERO_ADDR);
    params.insert("seller", "invalid_seller");

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Err(e) => (),
        _ => panic!("Expected an error when seller is malformed"),
    }

    let mut params = ObjectParams::new();
    params.insert("bitcoin_change_address", BITCOIN_ADDR);
    params.insert("monero_receive_address", MONERO_ADDR);
    params.insert("seller", SELLER);

    let response: Result<HashMap<String, String>, _> = client.request("buy_xmr", params).await;

    match response {
        Ok(hash) => (),
        Err(e) => panic!("Expected a HashMap, got an error: {}", e),
    }

    ctx.shutdown.send(());
}