// This test file is only compiled for wasm32. The DummySigner uses #[async_trait::async_trait(?Send)]
// because WASM async traits do not require Send. See balance.rs or evm_client.rs for the trait bound split rationale.
#![cfg(target_arch = "wasm32")]
use wasm_bindgen_test::*;
wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);

use evm_client::{EvmClient, EvmProvider, Signer, EvmError};

struct DummySigner;

#[async_trait::async_trait(?Send)]
impl Signer for DummySigner {
    async fn sign(&self, _message: &[u8]) -> Result<Vec<u8>, EvmError> {
        Ok(vec![0u8; 65]) // dummy signature
    }
    fn address(&self) -> String {
        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045".to_string()
    }
}

#[wasm_bindgen_test(async)]
async fn test_get_balance_vitalik_browser() {
    let provider = EvmProvider::Http {
        name: "mainnet".to_string(),
        url: "https://eth.drpc.org".to_string(),
        chain_id: 1,
    };
    let signer = DummySigner;
    let mut client = EvmClient::new(signer);
    client.add_provider("mainnet".to_string(), provider);
    client.set_current("mainnet").unwrap();
    let balance = client.get_balance("0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045").await;
    assert!(balance.is_ok(), "Balance query should succeed in browser");
    let balance = balance.unwrap();
    assert!(balance > 0u128, "Vitalik's balance should be greater than zero");
}

#[wasm_bindgen_test(async)]
async fn test_transfer_rlp_encoding_browser() {
    let provider = EvmProvider::Http {
        name: "mainnet".to_string(),
        url: "https://eth.drpc.org".to_string(),
        chain_id: 1,
    };
    let signer = DummySigner;
    let mut client = EvmClient::new(signer);
    client.add_provider("mainnet".to_string(), provider);
    client.set_current("mainnet").unwrap();
    let result = client.transfer("0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", 1u128).await;
    assert!(matches!(result, Err(EvmError::Rpc(_)) | Err(EvmError::Vault(_))));
}