Support webp/gif avatars

If the avatar hash begins with "a_", then the avatar is animated and is
a GIF. Otherwise, use WEBP.

2 files changed, 28 insertions, 6 deletions

diff --git a/src/model/user.rs b/src/model/user.rs
index af026ea..46da757 100644
--- a/src/model/user.rs
+++ b/src/model/user.rs
@@ -35,9 +35,19 @@ use ::client::CACHE;
 
 impl CurrentUser {
     /// Returns the formatted URL of the user's icon, if one exists.
+    ///
+    /// This will produce a WEBP image URL, or GIF if the user has a GIF avatar.
     pub fn avatar_url(&self) -> Option<String> {
-        self.avatar.as_ref().map(|av|
-            format!(cdn!("/avatars/{}/{}.jpg"), self.id.0, av))
+        self.avatar.as_ref()
+            .map(|av| {
+                let ext = if av.starts_with("a_") {
+                    "gif"
+                } else {
+                    "webp"
+                };
+
+                format!(cdn!("/avatars/{}/{}.{}?size=1024"), self.id.0, av, ext)
+            })
     }
 
     /// Edits the current user's profile settings.
@@ -99,9 +109,19 @@ impl CurrentUser {
 
 impl User {
     /// Returns the formatted URL of the user's icon, if one exists.
+    ///
+    /// This will produce a WEBP image URL, or GIF if the user has a GIF avatar.
     pub fn avatar_url(&self) -> Option<String> {
-        self.avatar.as_ref().map(|av|
-            format!(cdn!("/avatars/{}/{}.jpg"), self.id.0, av))
+        self.avatar.as_ref()
+            .map(|av| {
+                let ext = if av.starts_with("a_") {
+                    "gif"
+                } else {
+                    "webp"
+                };
+
+                format!(cdn!("/avatars/{}/{}.{}?size=1024"), self.id.0, av, ext)
+            })
     }
 
     /// Gets user as `Member` of a guild.
diff --git a/tests/test_user.rs b/tests/test_user.rs
index b4509f3..3da1ec6 100644
--- a/tests/test_user.rs
+++ b/tests/test_user.rs
@@ -16,9 +16,11 @@ fn gen() -> User {
 fn test_core() {
     let mut user = gen();
 
-    assert!(user.avatar_url().unwrap().ends_with("/avatars/210/abc.jpg"));
+    assert!(user.avatar_url().unwrap().ends_with("/avatars/210/abc.webp?size=1024"));
 
-    user.avatar = None;
+    user.avatar = Some("a_aaa".to_owned());
+    assert!(user.avatar_url().unwrap().ends_with("/avatars/210/a_aaa.gif?size=1024"));
 
+    user.avatar = None;
     assert!(user.avatar_url().is_none());
 }