feat(core/models): implement server members model

closes #280

crates/core/models/src/v0/mod.rs

@@ -2,6 +2,7 @@ mod bots;
 mod channel_webhooks;
 mod channels;
 mod files;
+mod server_members;
 mod servers;
 mod users;
 
@@ -9,5 +10,6 @@ pub use bots::*;
 pub use channel_webhooks::*;
 pub use channels::*;
 pub use files::*;
+pub use server_members::*;
 pub use servers::*;
 pub use users::*;

crates/core/models/src/v0/server_members.rs

@@ -0,0 +1,42 @@
+use super::File;
+
+use iso8601_timestamp::Timestamp;
+
+auto_derived!(
+    /// Server Member
+    pub struct Member {
+        /// Unique member id
+        #[cfg_attr(feature = "serde", serde(rename = "_id"))]
+        pub id: MemberCompositeKey,
+
+        /// Time at which this user joined the server
+        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
+        pub joined_at: Option<Timestamp>,
+
+        /// Member's nickname
+        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
+        pub nickname: Option<String>,
+        /// Avatar attachment
+        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
+        pub avatar: Option<File>,
+
+        /// Member's roles
+        #[cfg_attr(
+            feature = "serde",
+            serde(skip_serializing_if = "Vec::is_empty", default)
+        )]
+        pub roles: Vec<String>,
+        /// Timestamp this member is timed out until
+        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
+        pub timeout: Option<Timestamp>,
+    }
+
+    /// Composite primary key consisting of server and user id
+    #[derive(Hash, Default)]
+    pub struct MemberCompositeKey {
+        /// Server Id
+        pub server: String,
+        /// User Id
+        pub user: String,
+    }
+);