Refactor sidecars

crates/pile-value/src/extract/item/group.rs

@@ -0,0 +1,56 @@
+use std::sync::Arc;
+
+use pile_config::Label;
+
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{Item, PileValue},
+};
+
+pub struct GroupExtractor {
+	item: Item,
+}
+
+impl GroupExtractor {
+	pub fn new(item: &Item) -> Self {
+		Self { item: item.clone() }
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for GroupExtractor {
+	async fn field(
+		&self,
+		_state: &ExtractState,
+		name: &Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		if args.is_some() {
+			return Ok(None);
+		}
+		Ok(self
+			.item
+			.group()
+			.get(name)
+			.map(|item| PileValue::ObjectExtractor(Arc::new(super::ItemExtractor::new(item)))))
+	}
+
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		Ok(self.item.group().keys().cloned().collect())
+	}
+
+	async fn to_json(&self, _state: &ExtractState) -> Result<serde_json::Value, std::io::Error> {
+		Ok(serde_json::Value::Object(
+			self.item
+				.group()
+				.iter()
+				.map(|(k, v)| {
+					(
+						k.to_string(),
+						serde_json::Value::String(format!("<GroupItem ({})>", v.key())),
+					)
+				})
+				.collect(),
+		))
+	}
+}