1 files changed, 47 insertions, 0 deletions
diff --git a/aero-collections/src/calendar/namespace.rs b/aero-collections/src/calendar/namespace.rs
new file mode 100644
index 0000000..cf8a159
--- /dev/null
+++ b/aero-collections/src/calendar/namespace.rs
@@ -0,0 +1,47 @@
+use anyhow::Result;
+use std::collections::{HashMap, BTreeMap};
+use std::sync::{Weak, Arc};
+
+use serde::{Deserialize, Serialize};
+
+use aero_user::storage;
+
+use crate::unique_ident::UniqueIdent;
+use crate::user::User;
+use super::Calendar;
+
+pub(crate) const CAL_LIST_PK: &str = "calendars";
+pub(crate) const CAL_LIST_SK: &str = "list";
+
+pub(crate) struct CalendarNs(std::sync::Mutex<HashMap<UniqueIdent, Weak<Calendar>>>);
+impl CalendarNs {
+    pub fn new() -> Self {
+        Self(std::sync::Mutex::new(HashMap::new()))
+    }
+
+    pub fn list(&self) {
+        todo!();
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+pub(crate) struct CalendarList(BTreeMap<String, CalendarListEntry>);
+
+#[derive(Serialize, Deserialize, Clone, Copy, Debug)]
+pub(crate) struct CalendarListEntry {
+    id_lww: (u64, Option<UniqueIdent>),
+}
+
+impl CalendarList {
+    pub(crate) async fn load(user: &Arc<User>) -> Result<(Self, Option<storage::RowRef>)> {
+        todo!();
+    }
+
+    pub(crate) async fn save(user: &Arc<User>, ct: Option<storage::RowRef>) -> Result<()> {
+        todo!();
+    }
+
+    pub(crate) fn new() -> Self {
+        Self(BTreeMap::new())
+    }
+}