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feat(domain): ports, events, test helpers

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This commit is contained in:
Gabriel Kaszewski
2026-05-14 03:23:42 +02:00
parent 4b8d1027c1
commit 80b656341d
3 changed files with 461 additions and 3 deletions
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29
crates/domain/src/events.rs
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@@ -1 +1,28 @@
// filled in Task 4
use crate::value_objects::{UserId, ThoughtId, LikeId, BoostId};
#[derive(Debug, Clone)]
pub enum DomainEvent {
ThoughtCreated { thought_id: ThoughtId, user_id: UserId, in_reply_to_id: Option<ThoughtId> },
ThoughtDeleted { thought_id: ThoughtId, user_id: UserId },
ThoughtUpdated { thought_id: ThoughtId, user_id: UserId },
LikeAdded { like_id: LikeId, user_id: UserId, thought_id: ThoughtId },
LikeRemoved { user_id: UserId, thought_id: ThoughtId },
BoostAdded { boost_id: BoostId, user_id: UserId, thought_id: ThoughtId },
BoostRemoved { user_id: UserId, thought_id: ThoughtId },
FollowRequested { follower_id: UserId, following_id: UserId },
FollowAccepted { follower_id: UserId, following_id: UserId },
FollowRejected { follower_id: UserId, following_id: UserId },
Unfollowed { follower_id: UserId, following_id: UserId },
UserBlocked { blocker_id: UserId, blocked_id: UserId },
}
pub struct EventEnvelope {
pub event: DomainEvent,
pub ack: Box<dyn Fn() + Send + Sync>,
pub nack: Box<dyn Fn() + Send + Sync>,
}
impl std::fmt::Debug for EventEnvelope {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("EventEnvelope").field("event", &self.event).finish()
}
}

139
crates/domain/src/ports.rs
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@@ -1 +1,138 @@
// filled in Task 4
use async_trait::async_trait;
use crate::{
errors::DomainError,
events::{DomainEvent, EventEnvelope},
models::{
api_key::ApiKey,
feed::{FeedEntry, PageParams, Paginated, UserSummary},
notification::Notification,
remote_actor::RemoteActor,
social::{Block, Boost, Follow, FollowState, Like},
tag::Tag,
thought::Thought,
top_friend::TopFriend,
user::User,
},
value_objects::{ApiKeyId, Content, Email, NotificationId, PasswordHash, ThoughtId, UserId, Username},
};
pub struct GeneratedToken { pub token: String, pub user_id: UserId }
#[async_trait]
pub trait AuthService: Send + Sync {
fn generate_token(&self, user_id: &UserId) -> Result<GeneratedToken, DomainError>;
fn validate_token(&self, token: &str) -> Result<UserId, DomainError>;
}
#[async_trait]
pub trait PasswordHasher: Send + Sync {
async fn hash(&self, plain: &str) -> Result<PasswordHash, DomainError>;
async fn verify(&self, plain: &str, hash: &PasswordHash) -> Result<bool, DomainError>;
}
#[async_trait]
pub trait EventPublisher: Send + Sync {
async fn publish(&self, event: &DomainEvent) -> Result<(), DomainError>;
}
pub trait EventConsumer: Send + Sync {
fn consume(&self) -> futures::stream::BoxStream<'_, Result<EventEnvelope, DomainError>>;
}
#[async_trait]
pub trait UserRepository: Send + Sync {
async fn find_by_id(&self, id: &UserId) -> Result<Option<User>, DomainError>;
async fn find_by_username(&self, username: &Username) -> Result<Option<User>, DomainError>;
async fn find_by_email(&self, email: &Email) -> Result<Option<User>, DomainError>;
async fn save(&self, user: &User) -> Result<(), DomainError>;
async fn update_profile(&self, user_id: &UserId, display_name: Option<String>, bio: Option<String>, avatar_url: Option<String>, header_url: Option<String>, custom_css: Option<String>) -> Result<(), DomainError>;
async fn list_with_stats(&self) -> Result<Vec<UserSummary>, DomainError>;
}
#[async_trait]
pub trait ThoughtRepository: Send + Sync {
async fn save(&self, thought: &Thought) -> Result<(), DomainError>;
async fn find_by_id(&self, id: &ThoughtId) -> Result<Option<Thought>, DomainError>;
async fn delete(&self, id: &ThoughtId, user_id: &UserId) -> Result<(), DomainError>;
async fn update_content(&self, id: &ThoughtId, content: &Content) -> Result<(), DomainError>;
async fn get_thread(&self, id: &ThoughtId) -> Result<Vec<Thought>, DomainError>;
async fn list_by_user(&self, user_id: &UserId, page: &PageParams) -> Result<Paginated<FeedEntry>, DomainError>;
}
#[async_trait]
pub trait LikeRepository: Send + Sync {
async fn save(&self, like: &Like) -> Result<(), DomainError>;
async fn delete(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<(), DomainError>;
async fn find(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<Option<Like>, DomainError>;
async fn count_for_thought(&self, thought_id: &ThoughtId) -> Result<i64, DomainError>;
}
#[async_trait]
pub trait BoostRepository: Send + Sync {
async fn save(&self, boost: &Boost) -> Result<(), DomainError>;
async fn delete(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<(), DomainError>;
async fn find(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<Option<Boost>, DomainError>;
async fn count_for_thought(&self, thought_id: &ThoughtId) -> Result<i64, DomainError>;
}
#[async_trait]
pub trait FollowRepository: Send + Sync {
async fn save(&self, follow: &Follow) -> Result<(), DomainError>;
async fn delete(&self, follower_id: &UserId, following_id: &UserId) -> Result<(), DomainError>;
async fn find(&self, follower_id: &UserId, following_id: &UserId) -> Result<Option<Follow>, DomainError>;
async fn update_state(&self, follower_id: &UserId, following_id: &UserId, state: &FollowState) -> Result<(), DomainError>;
async fn list_followers(&self, user_id: &UserId, page: &PageParams) -> Result<Paginated<User>, DomainError>;
async fn list_following(&self, user_id: &UserId, page: &PageParams) -> Result<Paginated<User>, DomainError>;
async fn get_accepted_following_ids(&self, user_id: &UserId) -> Result<Vec<UserId>, DomainError>;
}
#[async_trait]
pub trait BlockRepository: Send + Sync {
async fn save(&self, block: &Block) -> Result<(), DomainError>;
async fn delete(&self, blocker_id: &UserId, blocked_id: &UserId) -> Result<(), DomainError>;
async fn exists(&self, blocker_id: &UserId, blocked_id: &UserId) -> Result<bool, DomainError>;
}
#[async_trait]
pub trait TagRepository: Send + Sync {
async fn find_or_create(&self, name: &str) -> Result<Tag, DomainError>;
async fn attach_to_thought(&self, thought_id: &ThoughtId, tag_id: i32) -> Result<(), DomainError>;
async fn detach_from_thought(&self, thought_id: &ThoughtId) -> Result<(), DomainError>;
async fn list_for_thought(&self, thought_id: &ThoughtId) -> Result<Vec<Tag>, DomainError>;
async fn list_thoughts_by_tag(&self, tag_name: &str, page: &PageParams) -> Result<Paginated<Thought>, DomainError>;
}
#[async_trait]
pub trait ApiKeyRepository: Send + Sync {
async fn save(&self, key: &ApiKey) -> Result<(), DomainError>;
async fn find_by_hash(&self, key_hash: &str) -> Result<Option<ApiKey>, DomainError>;
async fn list_for_user(&self, user_id: &UserId) -> Result<Vec<ApiKey>, DomainError>;
async fn delete(&self, id: &ApiKeyId, user_id: &UserId) -> Result<(), DomainError>;
}
#[async_trait]
pub trait TopFriendRepository: Send + Sync {
async fn set_top_friends(&self, user_id: &UserId, friends: Vec<(UserId, i16)>) -> Result<(), DomainError>;
async fn list_for_user(&self, user_id: &UserId) -> Result<Vec<(TopFriend, User)>, DomainError>;
}
#[async_trait]
pub trait NotificationRepository: Send + Sync {
async fn save(&self, n: &Notification) -> Result<(), DomainError>;
async fn list_for_user(&self, user_id: &UserId, page: &PageParams) -> Result<Paginated<Notification>, DomainError>;
async fn mark_read(&self, id: &NotificationId, user_id: &UserId) -> Result<(), DomainError>;
async fn mark_all_read(&self, user_id: &UserId) -> Result<(), DomainError>;
}
#[async_trait]
pub trait RemoteActorRepository: Send + Sync {
async fn upsert(&self, actor: &RemoteActor) -> Result<(), DomainError>;
async fn find_by_url(&self, url: &str) -> Result<Option<RemoteActor>, DomainError>;
}
#[async_trait]
pub trait FeedRepository: Send + Sync {
async fn home_feed(&self, following_ids: &[UserId], page: &PageParams, viewer_id: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError>;
async fn public_feed(&self, page: &PageParams, viewer_id: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError>;
async fn search(&self, query: &str, page: &PageParams, viewer_id: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError>;
}

296
crates/domain/src/testing.rs
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@@ -1 +1,295 @@
// filled in Task 4
use std::sync::{Arc, Mutex};
use async_trait::async_trait;
use chrono::Utc;
use crate::{
errors::DomainError,
events::DomainEvent,
models::{
api_key::ApiKey,
feed::{FeedEntry, PageParams, Paginated, UserSummary},
notification::Notification,
remote_actor::RemoteActor,
social::{Block, Boost, Follow, FollowState, Like},
tag::Tag,
thought::Thought,
top_friend::TopFriend,
user::User,
},
ports::*,
value_objects::{ApiKeyId, Content, Email, NotificationId, ThoughtId, UserId, Username},
};
#[derive(Default, Clone)]
pub struct TestStore {
pub users: Arc<Mutex<Vec<User>>>,
pub thoughts: Arc<Mutex<Vec<Thought>>>,
pub likes: Arc<Mutex<Vec<Like>>>,
pub boosts: Arc<Mutex<Vec<Boost>>>,
pub follows: Arc<Mutex<Vec<Follow>>>,
pub blocks: Arc<Mutex<Vec<Block>>>,
pub tags: Arc<Mutex<Vec<Tag>>>,
pub api_keys: Arc<Mutex<Vec<ApiKey>>>,
pub top_friends: Arc<Mutex<Vec<TopFriend>>>,
pub notifications: Arc<Mutex<Vec<Notification>>>,
pub events: Arc<Mutex<Vec<DomainEvent>>>,
}
#[async_trait] impl UserRepository for TestStore {
async fn find_by_id(&self, id: &UserId) -> Result<Option<User>, DomainError> {
Ok(self.users.lock().unwrap().iter().find(|u| &u.id == id).cloned())
}
async fn find_by_username(&self, username: &Username) -> Result<Option<User>, DomainError> {
Ok(self.users.lock().unwrap().iter().find(|u| u.username.as_str() == username.as_str()).cloned())
}
async fn find_by_email(&self, email: &Email) -> Result<Option<User>, DomainError> {
Ok(self.users.lock().unwrap().iter().find(|u| u.email.as_str() == email.as_str()).cloned())
}
async fn save(&self, user: &User) -> Result<(), DomainError> {
let mut g = self.users.lock().unwrap();
g.retain(|u| u.id != user.id);
g.push(user.clone());
Ok(())
}
async fn update_profile(&self, user_id: &UserId, display_name: Option<String>, bio: Option<String>, avatar_url: Option<String>, header_url: Option<String>, custom_css: Option<String>) -> Result<(), DomainError> {
if let Some(u) = self.users.lock().unwrap().iter_mut().find(|u| &u.id == user_id) {
u.display_name = display_name;
u.bio = bio;
u.avatar_url = avatar_url;
u.header_url = header_url;
u.custom_css = custom_css;
}
Ok(())
}
async fn list_with_stats(&self) -> Result<Vec<UserSummary>, DomainError> { Ok(vec![]) }
}
#[async_trait] impl ThoughtRepository for TestStore {
async fn save(&self, t: &Thought) -> Result<(), DomainError> {
let mut g = self.thoughts.lock().unwrap();
g.retain(|x| x.id != t.id);
g.push(t.clone());
Ok(())
}
async fn find_by_id(&self, id: &ThoughtId) -> Result<Option<Thought>, DomainError> {
Ok(self.thoughts.lock().unwrap().iter().find(|t| &t.id == id).cloned())
}
async fn delete(&self, id: &ThoughtId, user_id: &UserId) -> Result<(), DomainError> {
let mut g = self.thoughts.lock().unwrap();
let before = g.len();
g.retain(|t| !(&t.id == id && &t.user_id == user_id));
if g.len() == before { return Err(DomainError::NotFound); }
Ok(())
}
async fn update_content(&self, id: &ThoughtId, content: &Content) -> Result<(), DomainError> {
if let Some(t) = self.thoughts.lock().unwrap().iter_mut().find(|t| &t.id == id) {
t.content = content.clone();
t.updated_at = Some(Utc::now());
}
Ok(())
}
async fn get_thread(&self, id: &ThoughtId) -> Result<Vec<Thought>, DomainError> {
Ok(self.thoughts.lock().unwrap().iter()
.filter(|t| t.in_reply_to_id.as_ref() == Some(id) || &t.id == id)
.cloned().collect())
}
async fn list_by_user(&self, _user_id: &UserId, _page: &PageParams) -> Result<Paginated<FeedEntry>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
}
#[async_trait] impl LikeRepository for TestStore {
async fn save(&self, like: &Like) -> Result<(), DomainError> {
let mut g = self.likes.lock().unwrap();
if g.iter().any(|l| l.user_id == like.user_id && l.thought_id == like.thought_id) {
return Err(DomainError::Conflict("already liked".into()));
}
g.push(like.clone());
Ok(())
}
async fn delete(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<(), DomainError> {
let mut g = self.likes.lock().unwrap();
let before = g.len();
g.retain(|l| !(&l.user_id == user_id && &l.thought_id == thought_id));
if g.len() == before { return Err(DomainError::NotFound); }
Ok(())
}
async fn find(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<Option<Like>, DomainError> {
Ok(self.likes.lock().unwrap().iter().find(|l| &l.user_id == user_id && &l.thought_id == thought_id).cloned())
}
async fn count_for_thought(&self, thought_id: &ThoughtId) -> Result<i64, DomainError> {
Ok(self.likes.lock().unwrap().iter().filter(|l| &l.thought_id == thought_id).count() as i64)
}
}
#[async_trait] impl BoostRepository for TestStore {
async fn save(&self, boost: &Boost) -> Result<(), DomainError> {
let mut g = self.boosts.lock().unwrap();
if g.iter().any(|b| b.user_id == boost.user_id && b.thought_id == boost.thought_id) {
return Err(DomainError::Conflict("already boosted".into()));
}
g.push(boost.clone());
Ok(())
}
async fn delete(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<(), DomainError> {
let mut g = self.boosts.lock().unwrap();
let before = g.len();
g.retain(|b| !(&b.user_id == user_id && &b.thought_id == thought_id));
if g.len() == before { return Err(DomainError::NotFound); }
Ok(())
}
async fn find(&self, user_id: &UserId, thought_id: &ThoughtId) -> Result<Option<Boost>, DomainError> {
Ok(self.boosts.lock().unwrap().iter().find(|b| &b.user_id == user_id && &b.thought_id == thought_id).cloned())
}
async fn count_for_thought(&self, thought_id: &ThoughtId) -> Result<i64, DomainError> {
Ok(self.boosts.lock().unwrap().iter().filter(|b| &b.thought_id == thought_id).count() as i64)
}
}
#[async_trait] impl FollowRepository for TestStore {
async fn save(&self, follow: &Follow) -> Result<(), DomainError> {
let mut g = self.follows.lock().unwrap();
g.retain(|f| !(f.follower_id == follow.follower_id && f.following_id == follow.following_id));
g.push(follow.clone());
Ok(())
}
async fn delete(&self, follower_id: &UserId, following_id: &UserId) -> Result<(), DomainError> {
let mut g = self.follows.lock().unwrap();
let before = g.len();
g.retain(|f| !(&f.follower_id == follower_id && &f.following_id == following_id));
if g.len() == before { return Err(DomainError::NotFound); }
Ok(())
}
async fn find(&self, follower_id: &UserId, following_id: &UserId) -> Result<Option<Follow>, DomainError> {
Ok(self.follows.lock().unwrap().iter().find(|f| &f.follower_id == follower_id && &f.following_id == following_id).cloned())
}
async fn update_state(&self, follower_id: &UserId, following_id: &UserId, state: &FollowState) -> Result<(), DomainError> {
if let Some(f) = self.follows.lock().unwrap().iter_mut().find(|f| &f.follower_id == follower_id && &f.following_id == following_id) {
f.state = state.clone();
}
Ok(())
}
async fn list_followers(&self, _user_id: &UserId, _p: &PageParams) -> Result<Paginated<User>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
async fn list_following(&self, _user_id: &UserId, _p: &PageParams) -> Result<Paginated<User>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
async fn get_accepted_following_ids(&self, user_id: &UserId) -> Result<Vec<UserId>, DomainError> {
Ok(self.follows.lock().unwrap().iter()
.filter(|f| &f.follower_id == user_id && f.state == FollowState::Accepted)
.map(|f| f.following_id.clone())
.collect())
}
}
#[async_trait] impl BlockRepository for TestStore {
async fn save(&self, block: &Block) -> Result<(), DomainError> {
self.blocks.lock().unwrap().push(block.clone());
Ok(())
}
async fn delete(&self, blocker_id: &UserId, blocked_id: &UserId) -> Result<(), DomainError> {
self.blocks.lock().unwrap().retain(|b| !(&b.blocker_id == blocker_id && &b.blocked_id == blocked_id));
Ok(())
}
async fn exists(&self, blocker_id: &UserId, blocked_id: &UserId) -> Result<bool, DomainError> {
Ok(self.blocks.lock().unwrap().iter().any(|b| &b.blocker_id == blocker_id && &b.blocked_id == blocked_id))
}
}
#[async_trait] impl TagRepository for TestStore {
async fn find_or_create(&self, name: &str) -> Result<Tag, DomainError> {
let mut g = self.tags.lock().unwrap();
if let Some(t) = g.iter().find(|t| t.name == name) { return Ok(t.clone()); }
let tag = Tag { id: g.len() as i32 + 1, name: name.to_string() };
g.push(tag.clone());
Ok(tag)
}
async fn attach_to_thought(&self, _tid: &ThoughtId, _tag_id: i32) -> Result<(), DomainError> { Ok(()) }
async fn detach_from_thought(&self, _tid: &ThoughtId) -> Result<(), DomainError> { Ok(()) }
async fn list_for_thought(&self, _tid: &ThoughtId) -> Result<Vec<Tag>, DomainError> { Ok(vec![]) }
async fn list_thoughts_by_tag(&self, _name: &str, _p: &PageParams) -> Result<Paginated<Thought>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
}
#[async_trait] impl ApiKeyRepository for TestStore {
async fn save(&self, key: &ApiKey) -> Result<(), DomainError> {
self.api_keys.lock().unwrap().push(key.clone());
Ok(())
}
async fn find_by_hash(&self, hash: &str) -> Result<Option<ApiKey>, DomainError> {
Ok(self.api_keys.lock().unwrap().iter().find(|k| k.key_hash == hash).cloned())
}
async fn list_for_user(&self, uid: &UserId) -> Result<Vec<ApiKey>, DomainError> {
Ok(self.api_keys.lock().unwrap().iter().filter(|k| &k.user_id == uid).cloned().collect())
}
async fn delete(&self, id: &ApiKeyId, uid: &UserId) -> Result<(), DomainError> {
self.api_keys.lock().unwrap().retain(|k| !(&k.id == id && &k.user_id == uid));
Ok(())
}
}
#[async_trait] impl TopFriendRepository for TestStore {
async fn set_top_friends(&self, user_id: &UserId, friends: Vec<(UserId, i16)>) -> Result<(), DomainError> {
let mut g = self.top_friends.lock().unwrap();
g.retain(|tf| &tf.user_id != user_id);
for (fid, pos) in friends {
g.push(TopFriend { user_id: user_id.clone(), friend_id: fid, position: pos });
}
Ok(())
}
async fn list_for_user(&self, _uid: &UserId) -> Result<Vec<(TopFriend, User)>, DomainError> { Ok(vec![]) }
}
#[async_trait] impl NotificationRepository for TestStore {
async fn save(&self, n: &Notification) -> Result<(), DomainError> {
self.notifications.lock().unwrap().push(n.clone());
Ok(())
}
async fn list_for_user(&self, uid: &UserId, _p: &PageParams) -> Result<Paginated<Notification>, DomainError> {
let items: Vec<_> = self.notifications.lock().unwrap().iter().filter(|n| &n.user_id == uid).cloned().collect();
let total = items.len() as i64;
Ok(Paginated { items, total, page: 1, per_page: 20 })
}
async fn mark_read(&self, id: &NotificationId, _uid: &UserId) -> Result<(), DomainError> {
if let Some(n) = self.notifications.lock().unwrap().iter_mut().find(|n| &n.id == id) {
n.read = true;
}
Ok(())
}
async fn mark_all_read(&self, uid: &UserId) -> Result<(), DomainError> {
for n in self.notifications.lock().unwrap().iter_mut().filter(|n| &n.user_id == uid) {
n.read = true;
}
Ok(())
}
}
#[async_trait] impl RemoteActorRepository for TestStore {
async fn upsert(&self, _a: &RemoteActor) -> Result<(), DomainError> { Ok(()) }
async fn find_by_url(&self, _url: &str) -> Result<Option<RemoteActor>, DomainError> { Ok(None) }
}
#[async_trait] impl FeedRepository for TestStore {
async fn home_feed(&self, _ids: &[UserId], _p: &PageParams, _v: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
async fn public_feed(&self, _p: &PageParams, _v: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
async fn search(&self, _q: &str, _p: &PageParams, _v: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError> {
Ok(Paginated { items: vec![], total: 0, page: 1, per_page: 20 })
}
}
#[async_trait] impl EventPublisher for TestStore {
async fn publish(&self, event: &DomainEvent) -> Result<(), DomainError> {
self.events.lock().unwrap().push(event.clone());
Ok(())
}
}
pub struct NoOpEventPublisher;
#[async_trait] impl EventPublisher for NoOpEventPublisher {
async fn publish(&self, _e: &DomainEvent) -> Result<(), DomainError> { Ok(()) }
}