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//! Tests invoking an API defined in a custom backend.
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use bonsaidb::client::url::Url;

            

        

            

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use bonsaidb::client::AsyncClient;

            

        

            

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use bonsaidb::core::api::{Api, Infallible};

            

        

            

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use bonsaidb::core::async_trait::async_trait;

            

        

            

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use bonsaidb::core::test_util::{Basic, TestDirectory};

            

        

            

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use bonsaidb::local::config::Builder;

            

        

            

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use bonsaidb::server::api::Handler;

            

        

            

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use bonsaidb::server::{Backend, CustomServer, DefaultPermissions, ServerConfiguration};

            

        

            

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use bonsaidb_core::api::ApiName;

            

        

            

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use bonsaidb_core::schema::Qualified;

            

        

            

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use bonsaidb_server::api::{HandlerResult, HandlerSession};

            

        

            

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use serde::{Deserialize, Serialize};

            

        

            

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#[derive(Debug, Default)]

            

        

            

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struct CustomBackend;

            

        

            

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impl Backend for CustomBackend {

            

        

            

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    type ClientData = u64;

            

        

            

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    type Error = Infallible;

            

        

            

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}

            

        

            

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#[tokio::test]

            

        

            

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async fn custom_api() -> anyhow::Result<()> {

            

        

            

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    let dir = TestDirectory::new("custom_api.bonsaidb");

            

        

            

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    let server = CustomServer::<CustomBackend>::open(

            

        

            

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        ServerConfiguration::new(&dir)

            

        

            

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            .default_permissions(DefaultPermissions::AllowAll)

            

        

            

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            .with_api::<SetValueHandler, _>()?

            

        

            

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            .with_schema::<Basic>()?,

            

        

            

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    )

            

        

            

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    .await?;

            

        

            

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    server.install_self_signed_certificate(false).await?;

            

        

            

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    let certificate = server

            

        

            

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        .certificate_chain()

            

        

            

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        .await?

            

        

            

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        .into_end_entity_certificate();

            

        

            

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    tokio::spawn(async move { server.listen_on(12346).await });

            

        

            

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    let client = AsyncClient::build(Url::parse("bonsaidb://localhost:12346")?)

            

        

            

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        .with_api::<SetValue>()

            

        

            

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        .with_certificate(certificate)

            

        

            

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        .build()?;

            

        

            

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    let old_value = client.send_api_request(&SetValue { new_value: 1 }).await?;

            

        

            

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    assert_eq!(old_value, None);

            

        

            

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    let old_value = client.send_api_request(&SetValue { new_value: 2 }).await?;

            

        

            

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    assert_eq!(old_value, Some(1));

            

        

            

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    Ok(())

            

        

            

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}

            

        

            

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#[derive(Debug, Serialize, Deserialize)]

            

        

            

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struct SetValue {

            

        

            

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    new_value: u64,

            

        

            

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}

            

        

            

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impl Api for SetValue {

            

        

            

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    type Error = Infallible;

            

        

            

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    type Response = Option<u64>;

            

        

            

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    fn name() -> ApiName {

            

        

            

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        ApiName::private("set-value")

            

        

            

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    }

            

        

            

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}

            

        

            

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#[derive(Debug)]

            

        

            

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struct SetValueHandler;

            

        

            

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#[async_trait]

            

        

            

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impl Handler<SetValue, CustomBackend> for SetValueHandler {

            

        

            

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    async fn handle(

            

        

            

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        session: HandlerSession<'_, CustomBackend>,

            

        

            

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        request: SetValue,

            

        

            

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    ) -> HandlerResult<SetValue> {

            

        

            

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        let mut data = session.client.client_data().await;

            

        

            

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        let existing_value = data.replace(request.new_value);

            

        

            

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        Ok(existing_value)

            

        

            

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    }

            

        

            

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}