feat: enhance user registration and follow functionality, add popular tags endpoint, and update tests

thoughts-backend/models/src/domains/follow.rs

@@ -6,7 +6,7 @@ pub struct Model {
     #[sea_orm(primary_key, auto_increment = false)]
     pub follower_id: Uuid,
     #[sea_orm(primary_key, auto_increment = false)]
-    pub followed_id: Uuid,
+    pub following_id: Uuid,
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
@@ -21,12 +21,12 @@ pub enum Relation {
     Follower,
     #[sea_orm(
         belongs_to = "super::user::Entity",
-        from = "Column::FollowedId",
+        from = "Column::FollowingId",
         to = "super::user::Column::Id",
         on_update = "NoAction",
         on_delete = "Cascade"
     )]
-    Followed,
+    Following,
 }
 
 impl Related<super::user::Entity> for Entity {

thoughts-backend/models/src/params/auth.rs

@@ -6,6 +6,8 @@ use validator::Validate;
 pub struct RegisterParams {
     #[validate(length(min = 3))]
     pub username: String,
+    #[validate(email)]
+    pub email: String,
     #[validate(length(min = 6))]
     pub password: String,
 }

thoughts-backend/models/src/schemas/user.rs

@@ -14,12 +14,26 @@ pub struct UserSchema {
     pub avatar_url: Option<String>,
     pub header_url: Option<String>,
     pub custom_css: Option<String>,
-    // In a real implementation, you'd fetch and return this data.
-    // For now, we'll omit it from the schema to keep it simple.
-    // pub top_friends: Vec<String>,
+    pub top_friends: Vec<String>,
     pub joined_at: DateTimeWithTimeZoneWrapper,
 }
 
+impl From<(user::Model, Vec<user::Model>)> for UserSchema {
+    fn from((user, top_friends): (user::Model, Vec<user::Model>)) -> Self {
+        Self {
+            id: user.id,
+            username: user.username,
+            display_name: user.display_name,
+            bio: user.bio,
+            avatar_url: user.avatar_url,
+            header_url: user.header_url,
+            custom_css: user.custom_css,
+            top_friends: top_friends.into_iter().map(|u| u.username).collect(),
+            joined_at: user.created_at.into(),
+        }
+    }
+}
+
 impl From<user::Model> for UserSchema {
     fn from(user: user::Model) -> Self {
         Self {
@@ -30,6 +44,7 @@ impl From<user::Model> for UserSchema {
             avatar_url: user.avatar_url,
             header_url: user.header_url,
             custom_css: user.custom_css,
+            top_friends: vec![], // Defaults to an empty list
             joined_at: user.created_at.into(),
         }
     }