feat(core/permissions): initial commit

crates/core/permissions/src/models/user.rs

@@ -0,0 +1,25 @@
+/// User's relationship with another user (or themselves)
+pub enum RelationshipStatus {
+    None,
+    User,
+    Friend,
+    Outgoing,
+    Incoming,
+    Blocked,
+    BlockedOther,
+}
+
+/// User permission definitions
+#[derive(Debug, PartialEq, Eq, Copy, Clone)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
+#[cfg_attr(feature = "try-from-primitive", derive(num_enum::TryFromPrimitive))]
+#[repr(u32)]
+pub enum UserPermission {
+    Access = 1 << 0,
+    ViewProfile = 1 << 1,
+    SendMessage = 1 << 2,
+    Invite = 1 << 3,
+}
+
+impl_op_ex!(+ |a: &UserPermission, b: &UserPermission| -> u32 { *a as u32 | *b as u32 });
+impl_op_ex_commutative!(+ |a: &u32, b: &UserPermission| -> u32 { *a | *b as u32 });