// file: kb-lib/src/materializer/api/materializer.rs
// version: 2

//! Materializer API contract used by business materializer crates.

/// Common contract implemented by all business materializer crates.
pub trait MtMaterializer {
    /// Returns the stable materializer name.
    fn materializer_name(&self) -> &'static str;

    /// Returns the materializer version.
    fn materializer_version(&self) -> &'static str;

    /// Tests whether this materializer accepts a decoded event.
    fn accepts_event(&self, event: &crate::MdDecodedProtocolEvent) -> bool;

    /// Materializes a decoded event into zero or more business events.
    fn materialize_event(
        &self,
        event: &crate::MdDecodedProtocolEvent,
    ) -> kb_core::Result<std::vec::Vec<crate::MdMaterializedEvent>>;
}