Adding posts and comments.

14 files changed, 401 insertions, 113 deletions

diff --git a/API.md b/API.md
index fb233542..d631b2ba 100644
--- a/API.md
+++ b/API.md
@@ -52,6 +52,7 @@
   "inbox": "https://rust-reddit-fediverse/api/v1/user/sally_smith/inbox",
   "outbox": "https://rust-reddit-fediverse/api/v1/user/sally_smith/outbox",
   "liked": "https://rust-reddit-fediverse/api/v1/user/sally_smith/liked",
+  // TODO disliked?
   "following": "https://rust-reddit-fediverse/api/v1/user/sally_smith/following",
   "name": "sally_smith", 
   "preferredUsername": "Sally",
@@ -62,7 +63,7 @@
     "width": 32,
     "height": 32
   },
-  "startTime": "2014-12-31T23:00:00-08:00",
+  "published": "2014-12-31T23:00:00-08:00",
   "summary"?: "This is sally's profile."
 }
 ```
@@ -78,7 +79,7 @@
     "http://joe.example.org",
   ],
   "followers": "https://rust-reddit-fediverse/api/v1/community/today_i_learned/followers",
-  "startTime": "2014-12-31T23:00:00-08:00",
+  "published": "2014-12-31T23:00:00-08:00",
   "summary"?: "The group's tagline",
   "attachment: [{}] // TBD, these would be where strong types for custom styles, and images would work.
 }
@@ -95,7 +96,7 @@
   "name": "The title of a post, maybe a link to imgur",
   "url": "https://news.blah.com"
   "attributedTo": "http://joe.example.org", // The poster
-  "startTime": "2014-12-31T23:00:00-08:00",
+  "published": "2014-12-31T23:00:00-08:00",
 }
 ```
 
@@ -116,11 +117,11 @@
   "@context": "https://www.w3.org/ns/activitystreams",
   "type": "Note",
   "id": "https://rust-reddit-fediverse/api/v1/comment/1",
-  "name": "A note",
-  "content": "Looks like it is going to rain today. Bring an umbrella <a href='http://sally.example.org'>@sally</a>!"
+  "mediaType": "text/markdown",
+  "content": "Looks like it is going to rain today. Bring an umbrella *if necessary*!"
   "attributedTo": john_id,
   "inReplyTo": "comment or post id",
-  "startTime": "2014-12-31T23:00:00-08:00",
+  "published": "2014-12-31T23:00:00-08:00",
   "updated"?: "2014-12-12T12:12:12Z"
   "replies" // TODO, not sure if these objects should embed all replies in them or not.
   "to": [sally_id, group_id]
diff --git a/README.md b/README.md
index 9b61044a..99a8ad4e 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,6 @@ We have a twitter alternative (mastodon), a facebook alternative (friendica), so
 
 [ActivityPub API.md](API.md)
 
-
 ## Goals
 - Come up with a name / codename.
 - Must have communities.
@@ -21,7 +20,9 @@ We have a twitter alternative (mastodon), a facebook alternative (friendica), so
   - Backend: Actix, Diesel.
   - Frontend: inferno, typescript and bootstrap for now.
 - Should it allow bots?
-- Should the comments / votes be static, or feel like a chat, like [flowchat?](https://flow-chat.com). 
+- Should the comments / votes be static, or feel like a chat, like [flowchat?](https://flow-chat.com).
+  - Two pane model - Right pane is live comments, left pane is live tree view.
+  - On mobile, allow you to switch between them. Default?
 
 ## Resources / Potential Libraries
 - Use the [activitypub crate.](https://docs.rs/activitypub/0.1.4/activitypub/)
@@ -31,3 +32,9 @@ We have a twitter alternative (mastodon), a facebook alternative (friendica), so
 - [Diesel to Postgres data types](https://kotiri.com/2018/01/31/postgresql-diesel-rust-types.html)
 - [helpful diesel examples](http://siciarz.net/24-days-rust-diesel/)
 - [Mastodan public key server example](https://blog.joinmastodon.org/2018/06/how-to-implement-a-basic-activitypub-server/)
+- [Recursive query for adjacency list for nested comments](https://stackoverflow.com/questions/192220/what-is-the-most-efficient-elegant-way-to-parse-a-flat-table-into-a-tree/192462#192462)
+
+## TODOs 
+- Endpoints
+- DB
+- Followers / following
diff --git a/server/.gitignore b/server/.gitignore
index fedaa2b1..93c43d03 100644
--- a/server/.gitignore
+++ b/server/.gitignore
@@ -1,2 +1,3 @@
 /target
 .env
+.idea
diff --git a/server/migrations/2019-03-03-163336_create_post/down.sql b/server/migrations/2019-03-03-163336_create_post/down.sql
index a5783965..acc0b5d1 100644
--- a/server/migrations/2019-03-03-163336_create_post/down.sql
+++ b/server/migrations/2019-03-03-163336_create_post/down.sql
@@ -1,3 +1,2 @@
 drop table post_like;
-drop table post_dislike;
 drop table post;
diff --git a/server/migrations/2019-03-03-163336_create_post/up.sql b/server/migrations/2019-03-03-163336_create_post/up.sql
index 16ef545e..a617ea33 100644
--- a/server/migrations/2019-03-03-163336_create_post/up.sql
+++ b/server/migrations/2019-03-03-163336_create_post/up.sql
@@ -9,15 +9,9 @@ create table post (
 
 create table post_like (
   id serial primary key,
+  post_id int references post on update cascade on delete cascade not null,
   fedi_user_id text not null,
-  post_id int references post on update cascade on delete cascade,
-  published timestamp not null default now()
-);
-
-create table post_dislike (
-  id serial primary key,
-  fedi_user_id text not null,
-  post_id int references post on update cascade on delete cascade,
+  score smallint not null, -- -1, or 1 for dislike, like, no row for no opinion
   published timestamp not null default now()
 );
 
diff --git a/server/migrations/2019-03-05-233828_create_comment/down.sql b/server/migrations/2019-03-05-233828_create_comment/down.sql
new file mode 100644
index 00000000..5b92a44c
--- /dev/null
+++ b/server/migrations/2019-03-05-233828_create_comment/down.sql
@@ -0,0 +1,2 @@
+drop table comment_like;
+drop table comment;
diff --git a/server/migrations/2019-03-05-233828_create_comment/up.sql b/server/migrations/2019-03-05-233828_create_comment/up.sql
new file mode 100644
index 00000000..63fc758d
--- /dev/null
+++ b/server/migrations/2019-03-05-233828_create_comment/up.sql
@@ -0,0 +1,17 @@
+create table comment (
+  id serial primary key,
+  content text not null,
+  attributed_to text not null,
+  post_id int references post on update cascade on delete cascade not null,
+  parent_id int references comment on update cascade on delete cascade,
+  published timestamp not null default now(),
+  updated timestamp
+);
+
+create table comment_like (
+  id serial primary key,
+  comment_id int references comment on update cascade on delete cascade not null,
+  fedi_user_id text not null,
+  score smallint not null, -- -1, or 1 for dislike, like, no row for no opinion
+  published timestamp not null default now()
+);
diff --git a/server/src/actions/comment.rs b/server/src/actions/comment.rs
new file mode 100644
index 00000000..104c13f2
--- /dev/null
+++ b/server/src/actions/comment.rs
@@ -0,0 +1,177 @@
+extern crate diesel;
+use schema::{comment, comment_like};
+use diesel::*;
+use diesel::result::Error;
+use {Crud, Likeable};
+
+#[derive(Queryable, Identifiable, PartialEq, Debug)]
+#[table_name="comment"]
+pub struct Comment {
+  pub id: i32,
+  pub content: String,
+  pub attributed_to: String,
+  pub post_id: i32,
+  pub parent_id: Option<i32>,
+  pub published: chrono::NaiveDateTime,
+  pub updated: Option<chrono::NaiveDateTime>
+}
+
+#[derive(Insertable, AsChangeset, Clone, Copy)]
+#[table_name="comment"]
+pub struct CommentForm<'a> {
+  pub content: &'a str,
+  pub attributed_to: &'a str,
+  pub post_id: &'a i32,
+  pub parent_id: Option<&'a i32>,
+  pub updated: Option<&'a chrono::NaiveDateTime>
+}
+
+#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
+#[belongs_to(Comment)]
+#[table_name = "comment_like"]
+pub struct CommentLike {
+  pub id: i32,
+  pub comment_id: i32,
+  pub fedi_user_id: String,
+  pub score: i16,
+  pub published: chrono::NaiveDateTime,
+}
+
+#[derive(Insertable, AsChangeset, Clone, Copy)]
+#[table_name="comment_like"]
+pub struct CommentLikeForm<'a> {
+  pub comment_id: &'a i32,
+  pub fedi_user_id: &'a str,
+  pub score: &'a i16
+}
+
+impl<'a> Crud<CommentForm<'a>> for Comment {
+  fn read(conn: &PgConnection, comment_id: i32) -> Comment {
+    use schema::comment::dsl::*;
+    comment.find(comment_id)
+      .first::<Comment>(conn)
+      .expect("Error in query")
+  }
+
+  fn delete(conn: &PgConnection, comment_id: i32) -> usize {
+    use schema::comment::dsl::*;
+    diesel::delete(comment.find(comment_id))
+      .execute(conn)
+      .expect("Error deleting.")
+  }
+
+  fn create(conn: &PgConnection, comment_form: CommentForm) -> Result<Comment, Error> {
+    use schema::comment::dsl::*;
+      insert_into(comment)
+        .values(comment_form)
+        .get_result::<Comment>(conn)
+  }
+
+  fn update(conn: &PgConnection, comment_id: i32, comment_form: CommentForm) -> Comment {
+    use schema::comment::dsl::*;
+    diesel::update(comment.find(comment_id))
+      .set(comment_form)
+      .get_result::<Comment>(conn)
+      .expect(&format!("Unable to find {}", comment_id))
+  }
+}
+
+impl<'a> Likeable <CommentLikeForm<'a>> for CommentLike {
+  fn like(conn: &PgConnection, comment_like_form: CommentLikeForm) -> Result<CommentLike, Error> {
+    use schema::comment_like::dsl::*;
+    insert_into(comment_like)
+      .values(comment_like_form)
+      .get_result::<CommentLike>(conn)
+  }
+  fn remove(conn: &PgConnection, comment_like_form: CommentLikeForm) -> usize {
+    use schema::comment_like::dsl::*;
+    diesel::delete(comment_like
+      .filter(comment_id.eq(comment_like_form.comment_id))
+      .filter(fedi_user_id.eq(comment_like_form.fedi_user_id)))
+      .execute(conn)
+      .expect("Error deleting.")
+  }
+}
+
+#[cfg(test)]
+mod tests {
+  use establish_connection;
+  use super::*;
+  use actions::post::*;
+  use Crud;
+ #[test]
+  fn test_crud() {
+    let conn = establish_connection();
+    
+    let new_post = PostForm {
+      name: "A test post".into(),
+      url: "https://test.com".into(),
+      attributed_to: "test_user.com".into(),
+      updated: None
+    };
+
+    let inserted_post = Post::create(&conn, new_post).unwrap();
+
+    let comment_form = CommentForm {
+      content: "A test comment".into(),
+      attributed_to: "test_user.com".into(),
+      post_id: &inserted_post.id,
+      parent_id: None,
+      updated: None
+    };
+
+    let inserted_comment = Comment::create(&conn, comment_form).unwrap();
+
+    let expected_comment = Comment {
+      id: inserted_comment.id,
+      content: "A test comment".into(),
+      attributed_to: "test_user.com".into(),
+      post_id: inserted_post.id,
+      parent_id: None,
+      published: inserted_comment.published,
+      updated: None
+    };
+    
+    let child_comment_form = CommentForm {
+      content: "A child comment".into(),
+      attributed_to: "test_user.com".into(),
+      post_id: &inserted_post.id,
+      parent_id: Some(&inserted_comment.id),
+      updated: None
+    };
+
+    let inserted_child_comment = Comment::create(&conn, child_comment_form).unwrap();
+
+    let comment_like_form = CommentLikeForm {
+      comment_id: &inserted_comment.id,
+      fedi_user_id: "test".into(),
+      score: &1
+    };
+
+    let inserted_comment_like = CommentLike::like(&conn, comment_like_form).unwrap();
+
+    let expected_comment_like = CommentLike {
+      id: inserted_comment_like.id,
+      comment_id: inserted_comment.id,
+      fedi_user_id: "test".into(),
+      published: inserted_comment_like.published,
+      score: 1
+    };
+    
+    let read_comment = Comment::read(&conn, inserted_comment.id);
+    let updated_comment = Comment::update(&conn, inserted_comment.id, comment_form);
+    let like_removed = CommentLike::remove(&conn, comment_like_form);
+    let num_deleted = Comment::delete(&conn, inserted_comment.id);
+    Comment::delete(&conn, inserted_child_comment.id);
+    Post::delete(&conn, inserted_post.id);
+
+    assert_eq!(expected_comment, read_comment);
+    assert_eq!(expected_comment, inserted_comment);
+    assert_eq!(expected_comment, updated_comment);
+    assert_eq!(expected_comment_like, inserted_comment_like);
+    assert_eq!(expected_comment.id, inserted_child_comment.parent_id.unwrap());
+    assert_eq!(1, like_removed);
+    assert_eq!(1, num_deleted);
+
+  }
+}
diff --git a/server/src/actions/mod.rs b/server/src/actions/mod.rs
index df10dbbc..12227305 100644
--- a/server/src/actions/mod.rs
+++ b/server/src/actions/mod.rs
@@ -1,3 +1,4 @@
 pub mod user;
 pub mod community;
 pub mod post;
+pub mod comment;
diff --git a/server/src/actions/post.rs b/server/src/actions/post.rs
index e69de29b..dd80f582 100644
--- a/server/src/actions/post.rs
+++ b/server/src/actions/post.rs
@@ -0,0 +1,150 @@
+extern crate diesel;
+use schema::{post, post_like};
+use diesel::*;
+use diesel::result::Error;
+use {Crud, Likeable};
+
+#[derive(Queryable, Identifiable, PartialEq, Debug)]
+#[table_name="post"]
+pub struct Post {
+  pub id: i32,
+  pub name: String,
+  pub url: String,
+  pub attributed_to: String,
+  pub published: chrono::NaiveDateTime,
+  pub updated: Option<chrono::NaiveDateTime>
+}
+
+#[derive(Insertable, AsChangeset, Clone, Copy)]
+#[table_name="post"]
+pub struct PostForm<'a> {
+  pub name: &'a str,
+  pub url: &'a str,
+  pub attributed_to: &'a str,
+  pub updated: Option<&'a chrono::NaiveDateTime>
+}
+
+#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
+#[belongs_to(Post)]
+#[table_name = "post_like"]
+pub struct PostLike {
+  pub id: i32,
+  pub post_id: i32,
+  pub fedi_user_id: String,
+  pub score: i16,
+  pub published: chrono::NaiveDateTime,
+}
+
+#[derive(Insertable, AsChangeset, Clone, Copy)]
+#[table_name="post_like"]
+pub struct PostLikeForm<'a> {
+  pub post_id: &'a i32,
+  pub fedi_user_id: &'a str,
+  pub score: &'a i16
+}
+
+impl<'a> Crud<PostForm<'a>> for Post {
+  fn read(conn: &PgConnection, post_id: i32) -> Post {
+    use schema::post::dsl::*;
+    post.find(post_id)
+      .first::<Post>(conn)
+      .expect("Error in query")
+  }
+
+  fn delete(conn: &PgConnection, post_id: i32) -> usize {
+    use schema::post::dsl::*;
+    diesel::delete(post.find(post_id))
+      .execute(conn)
+      .expect("Error deleting.")
+  }
+
+  fn create(conn: &PgConnection, new_post: PostForm) -> Result<Post, Error> {
+    use schema::post::dsl::*;
+      insert_into(post)
+        .values(new_post)
+        .get_result::<Post>(conn)
+  }
+
+  fn update(conn: &PgConnection, post_id: i32, new_post: PostForm) -> Post {
+    use schema::post::dsl::*;
+    diesel::update(post.find(post_id))
+      .set(new_post)
+      .get_result::<Post>(conn)
+      .expect(&format!("Unable to find {}", post_id))
+  }
+}
+
+impl<'a> Likeable <PostLikeForm<'a>> for PostLike {
+  fn like(conn: &PgConnection, post_like_form: PostLikeForm) -> Result<PostLike, Error> {
+    use schema::post_like::dsl::*;
+    insert_into(post_like)
+      .values(post_like_form)
+      .get_result::<PostLike>(conn)
+  }
+  fn remove(conn: &PgConnection, post_like_form: PostLikeForm) -> usize {
+    use schema::post_like::dsl::*;
+    diesel::delete(post_like
+      .filter(post_id.eq(post_like_form.post_id))
+      .filter(fedi_user_id.eq(post_like_form.fedi_user_id)))
+      .execute(conn)
+      .expect("Error deleting.")
+  }
+}
+
+#[cfg(test)]
+mod tests {
+  use establish_connection;
+  use super::*;
+  use Crud;
+ #[test]
+  fn test_crud() {
+    let conn = establish_connection();
+    
+    let new_post = PostForm {
+      name: "A test post".into(),
+      url: "https://test.com".into(),
+      attributed_to: "test_user.com".into(),
+      updated: None
+    };
+
+    let inserted_post = Post::create(&conn, new_post).unwrap();
+
+    let expected_post = Post {
+      id: inserted_post.id,
+      name: "A test post".into(),
+      url: "https://test.com".into(),
+      attributed_to: "test_user.com".into(),
+      published: inserted_post.published,
+      updated: None
+    };
+
+    let post_like_form = PostLikeForm {
+      post_id: &inserted_post.id,
+      fedi_user_id: "test".into(),
+      score: &1
+    };
+
+    let inserted_post_like = PostLike::like(&conn, post_like_form).unwrap();
+
+    let expected_post_like = PostLike {
+      id: inserted_post_like.id,
+      post_id: inserted_post.id,
+      fedi_user_id: "test".into(),
+      published: inserted_post_like.published,
+      score: 1
+    };
+    
+    let read_post = Post::read(&conn, inserted_post.id);
+    let updated_post = Post::update(&conn, inserted_post.id, new_post);
+    let like_removed = PostLike::remove(&conn, post_like_form);
+    let num_deleted = Post::delete(&conn, inserted_post.id);
+
+    assert_eq!(expected_post, read_post);
+    assert_eq!(expected_post, inserted_post);
+    assert_eq!(expected_post, updated_post);
+    assert_eq!(expected_post_like, inserted_post_like);
+    assert_eq!(1, like_removed);
+    assert_eq!(1, num_deleted);
+
+  }
+}
diff --git a/server/src/actions/src/schema.rs b/server/src/actions/src/schema.rs
deleted file mode 100644
index 580b82e7..00000000
--- a/server/src/actions/src/schema.rs
+++ /dev/null
@@ -1,80 +0,0 @@
-table! {
-    community (id) {
-        id -> Int4,
-        name -> Varchar,
-        start_time -> Timestamp,
-    }
-}
-
-table! {
-    community_follower (id) {
-        id -> Int4,
-        fedi_user_id -> Text,
-        community_id -> Nullable<Int4>,
-        start_time -> Timestamp,
-    }
-}
-
-table! {
-    community_user (id) {
-        id -> Int4,
-        fedi_user_id -> Text,
-        community_id -> Nullable<Int4>,
-        start_time -> Timestamp,
-    }
-}
-
-table! {
-    post (id) {
-        id -> Int4,
-        name -> Varchar,
-        url -> Text,
-        attributed_to -> Text,
-        start_time -> Timestamp,
-    }
-}
-
-table! {
-    post_dislike (id) {
-        id -> Int4,
-        fedi_user_id -> Text,
-        post_id -> Nullable<Int4>,
-        start_time -> Timestamp,
-    }
-}
-
-table! {
-    post_like (id) {
-        id -> Int4,
-        fedi_user_id -> Text,
-        post_id -> Nullable<Int4>,
-        start_time -> Timestamp,
-    }
-}
-
-table! {
-    user_ (id) {
-        id -> Int4,
-        name -> Varchar,
-        preferred_username -> Nullable<Varchar>,
-        password_encrypted -> Text,
-        email -> Nullable<Text>,
-        icon -> Nullable<Bytea>,
-        start_time -> Timestamp,
-    }
-}
-
-joinable!(community_follower -> community (community_id));
-joinable!(community_user -> community (community_id));
-joinable!(post_dislike -> post (post_id));
-joinable!(post_like -> post (post_id));
-
-allow_tables_to_appear_in_same_query!(
-    community,
-    community_follower,
-    community_user,
-    post,
-    post_dislike,
-    post_like,
-    user_,
-);
diff --git a/server/src/apub.rs b/server/src/apub.rs
index 4cfd1088..16b8be1b 100644
--- a/server/src/apub.rs
+++ b/server/src/apub.rs
@@ -48,11 +48,9 @@ mod tests {
     };
 
     let person = expected_user.person();
-
-    // let expected_person = Person {
-    // };
-
     assert_eq!("http://0.0.0.0/api/v1/user/thom", person.object_props.id_string().unwrap());
+    let json = serde_json::to_string_pretty(&person).unwrap();
+    println!("{}", json);
 
   }
 }
diff --git a/server/src/lib.rs b/server/src/lib.rs
index e7898971..b1a1f252 100644
--- a/server/src/lib.rs
+++ b/server/src/lib.rs
@@ -31,6 +31,11 @@ pub trait Joinable<T> {
   fn leave(conn: &PgConnection, form: T) -> usize;
 }
 
+pub trait Likeable<T> {
+  fn like(conn: &PgConnection, form: T) -> Result<Self, Error> where Self: Sized;
+  fn remove(conn: &PgConnection, form: T) -> usize;
+}
+
 pub fn establish_connection() -> PgConnection {
   let db_url = Settings::get().db_url;
   PgConnection::establish(&db_url)
diff --git a/server/src/schema.rs b/server/src/schema.rs
index 75cbad5b..4ab54bc4 100644
--- a/server/src/schema.rs
+++ b/server/src/schema.rs
@@ -1,4 +1,26 @@
 table! {
+    comment (id) {
+        id -> Int4,
+        content -> Text,
+        attributed_to -> Text,
+        post_id -> Int4,
+        parent_id -> Nullable<Int4>,
+        published -> Timestamp,
+        updated -> Nullable<Timestamp>,
+    }
+}
+
+table! {
+    comment_like (id) {
+        id -> Int4,
+        comment_id -> Int4,
+        fedi_user_id -> Text,
+        score -> Int2,
+        published -> Timestamp,
+    }
+}
+
+table! {
     community (id) {
         id -> Int4,
         name -> Varchar,
@@ -37,19 +59,11 @@ table! {
 }
 
 table! {
-    post_dislike (id) {
-        id -> Int4,
-        fedi_user_id -> Text,
-        post_id -> Nullable<Int4>,
-        published -> Timestamp,
-    }
-}
-
-table! {
     post_like (id) {
         id -> Int4,
+        post_id -> Int4,
         fedi_user_id -> Text,
-        post_id -> Nullable<Int4>,
+        score -> Int2,
         published -> Timestamp,
     }
 }
@@ -67,17 +81,19 @@ table! {
     }
 }
 
+joinable!(comment -> post (post_id));
+joinable!(comment_like -> comment (comment_id));
 joinable!(community_follower -> community (community_id));
 joinable!(community_user -> community (community_id));
-joinable!(post_dislike -> post (post_id));
 joinable!(post_like -> post (post_id));
 
 allow_tables_to_appear_in_same_query!(
+    comment,
+    comment_like,
     community,
     community_follower,
     community_user,
     post,
-    post_dislike,
     post_like,
     user_,
 );