Rewrite to chatty but functional API.

gamenight-cli/src/flows/join.rs

@@ -0,0 +1,34 @@
+use std::fmt::Display;
+
+use async_trait::async_trait;
+use gamenight_api_client_rs::{apis::default_api::join_post, models::GamenightId};
+use uuid::Uuid;
+
+use super::{Flow, FlowOutcome, FlowResult, GamenightState};
+
+#[derive(Clone)]
+pub struct Join {
+    gamenight_id: Uuid
+}
+
+impl Join {
+    pub fn new(gamenight_id: Uuid) -> Self {
+        Self {
+            gamenight_id
+        }
+    }
+}
+
+#[async_trait]
+impl<'a> Flow<'a> for Join {
+    async fn run(&self, state: &'a mut GamenightState) -> FlowResult<'a> {
+        let _ = join_post(&state.configuration, Some(GamenightId{gamenight_id: self.gamenight_id.to_string()})).await?;
+        Ok((FlowOutcome::Successful, state))
+    }
+}
+
+impl Display for Join {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "Join")
+    }
+}