chore: bootstrap nana-story M0

crates/nana-runtime/src/lib.rs

@@ -0,0 +1,53 @@
+use std::collections::VecDeque;
+
+use nana_domain::{TurnFailure, TurnFailureCode, TurnRequest, TurnResult};
+use thiserror::Error;
+
+pub const LAPP_BASELINE_COMMIT: &str = "5ba3c659e1536ec4bee16340faca603940a5cb17";
+
+#[derive(Debug, Error)]
+pub enum ProviderError {
+    #[error("no recorded response remains")]
+    FixtureExhausted,
+    #[error("LAPP profile could not be loaded: {0}")]
+    Profile(String),
+}
+
+pub trait TurnProvider {
+    fn complete_turn(&mut self, request: &TurnRequest) -> Result<TurnResult, ProviderError>;
+}
+
+#[derive(Debug)]
+pub struct FakeProvider {
+    responses: VecDeque<TurnResult>,
+}
+
+impl FakeProvider {
+    #[must_use]
+    pub fn new(responses: impl IntoIterator<Item = TurnResult>) -> Self {
+        Self {
+            responses: responses.into_iter().collect(),
+        }
+    }
+}
+
+impl TurnProvider for FakeProvider {
+    fn complete_turn(&mut self, _request: &TurnRequest) -> Result<TurnResult, ProviderError> {
+        self.responses
+            .pop_front()
+            .ok_or(ProviderError::FixtureExhausted)
+    }
+}
+
+pub fn load_default_lapp_profile() -> Result<openlapp::Profile, ProviderError> {
+    openlapp::load_default_profile().map_err(|error| ProviderError::Profile(error.to_string()))
+}
+
+#[must_use]
+pub fn provider_failure(message: impl Into<String>) -> TurnFailure {
+    TurnFailure {
+        code: TurnFailureCode::ProviderUnavailable,
+        message: message.into(),
+        retryable: true,
+    }
+}