store edits inside edit.rs, avoid code duplication

src/api.rs

@@ -1,15 +1,15 @@
 use crate::database::DatabaseHandle;
-use crate::error::{Error, MyResult};
+use crate::error::{MyResult};
 use crate::federation::activities::create_article::CreateArticle;
 use crate::federation::activities::update_article::UpdateArticle;
-use crate::federation::objects::article::{ApubArticle, DbArticle};
+use crate::federation::objects::article::{DbArticle};
 use crate::federation::objects::edit::DbEdit;
-use crate::federation::objects::instance::{ApubInstance, DbInstance};
+use crate::federation::objects::instance::{DbInstance};
 use activitypub_federation::config::Data;
 use activitypub_federation::fetch::object_id::ObjectId;
-use activitypub_federation::traits::Object;
+
 use anyhow::anyhow;
-use async_trait::async_trait;
+
 use axum::extract::Query;
 use axum::routing::{get, post};
 use axum::{Form, Json, Router};
@@ -65,7 +65,7 @@ async fn create_article(
     Ok(Json(article))
 }
 
-#[derive(Deserialize, Serialize)]
+#[derive(Deserialize, Serialize, Debug)]
 pub struct EditArticleData {
     pub ap_id: ObjectId<DbArticle>,
     pub new_text: String,

src/federation/activities/update_article.rs

@@ -11,7 +11,7 @@ use activitypub_federation::{
     protocol::helpers::deserialize_one_or_many,
     traits::{ActivityHandler, Object},
 };
-use diffy::{apply, Patch};
+
 use serde::{Deserialize, Serialize};
 use url::Url;
 
@@ -21,8 +21,7 @@ pub struct UpdateArticle {
     pub actor: ObjectId<DbInstance>,
     #[serde(deserialize_with = "deserialize_one_or_many")]
     pub to: Vec<Url>,
-    pub object: ObjectId<DbArticle>,
-    pub result: ApubEdit,
+    pub object: ApubEdit,
     #[serde(rename = "type")]
     pub kind: CreateType,
     pub id: Url,
@@ -40,8 +39,7 @@ impl UpdateArticle {
             let update = UpdateArticle {
                 actor: local_instance.ap_id.clone(),
                 to: local_instance.follower_ids(),
-                object: article.ap_id,
-                result: edit.into_json(data).await?,
+                object: edit.into_json(data).await?,
                 kind: Default::default(),
                 id,
             };
@@ -51,8 +49,7 @@ impl UpdateArticle {
             let update = UpdateArticle {
                 actor: local_instance.ap_id.clone(),
                 to: vec![article_instance.ap_id.into_inner()],
-                object: article.ap_id,
-                result: edit.into_json(data).await?,
+                object: edit.into_json(data).await?,
                 kind: Default::default(),
                 id,
             };
@@ -82,13 +79,9 @@ impl ActivityHandler for UpdateArticle {
 
     async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
         let article_local = {
-            let edit = DbEdit::from_json(self.result.clone(), data).await?;
-            let mut lock = data.articles.lock().unwrap();
-            let article = lock.get_mut(self.object.inner()).unwrap();
-            article.edits.push(edit);
-            // TODO: probably better to apply patch inside DbEdit::from_json()
-            let patch = Patch::from_str(&self.result.diff)?;
-            article.text = apply(&article.text, &patch)?;
+            DbEdit::from_json(self.object.clone(), data).await?;
+            let lock = data.articles.lock().unwrap();
+            let article = lock.get(self.object.object.inner()).unwrap();
             article.local
         };
 
@@ -101,7 +94,6 @@ impl ActivityHandler for UpdateArticle {
                 actor: local_instance.ap_id.clone(),
                 to: local_instance.follower_ids(),
                 object: self.object,
-                result: self.result,
                 kind: Default::default(),
                 id,
             };

src/federation/objects/edit.rs

@@ -4,7 +4,7 @@ use crate::federation::objects::article::DbArticle;
 use activitypub_federation::config::Data;
 use activitypub_federation::fetch::object_id::ObjectId;
 use activitypub_federation::traits::Object;
-use diffy::create_patch;
+use diffy::{apply, create_patch, Patch};
 use serde::{Deserialize, Serialize};
 use sha2::Digest;
 use sha2::Sha224;
@@ -15,6 +15,7 @@ use url::Url;
 pub struct DbEdit {
     pub id: ObjectId<DbEdit>,
     pub diff: String,
+    pub article_id: ObjectId<DbArticle>,
     pub local: bool,
 }
 
@@ -28,6 +29,7 @@ impl DbEdit {
         Ok(DbEdit {
             id: edit_id,
             diff: diff.to_string(),
+            article_id: original_article.ap_id.clone(),
             local: true,
         })
     }
@@ -44,7 +46,8 @@ pub struct ApubEdit {
     #[serde(rename = "type")]
     kind: EditType,
     id: ObjectId<DbEdit>,
-    pub(crate) diff: String,
+    pub(crate) content: String,
+    pub object: ObjectId<DbArticle>,
 }
 
 #[async_trait::async_trait]
@@ -64,7 +67,8 @@ impl Object for DbEdit {
         Ok(ApubEdit {
             kind: EditType::Edit,
             id: self.id,
-            diff: self.diff,
+            content: self.diff,
+            object: self.article_id,
         })
     }
 
@@ -76,14 +80,19 @@ impl Object for DbEdit {
         Ok(())
     }
 
-    async fn from_json(
-        json: Self::Kind,
-        _data: &Data<Self::DataType>,
-    ) -> Result<Self, Self::Error> {
-        Ok(Self {
+    async fn from_json(json: Self::Kind, data: &Data<Self::DataType>) -> Result<Self, Self::Error> {
+        let edit = Self {
             id: json.id,
-            diff: json.diff,
+            diff: json.content,
+            article_id: json.object,
             local: false,
-        })
+        };
+        let mut lock = data.articles.lock().unwrap();
+        let article = lock.get_mut(edit.article_id.inner()).unwrap();
+        article.edits.push(edit.clone());
+        let patch = Patch::from_str(&edit.diff)?;
+        article.text = apply(&article.text, &patch)?;
+
+        Ok(edit)
     }
 }

src/federation/objects/edits_collection.rs

@@ -68,23 +68,11 @@ impl Collection for DbEditCollection {
 
     async fn from_json(
         apub: Self::Kind,
-        owner: &Self::Owner,
+        _owner: &Self::Owner,
         data: &Data<Self::DataType>,
     ) -> Result<Self, Self::Error> {
         let edits =
             try_join_all(apub.items.into_iter().map(|i| DbEdit::from_json(i, data))).await?;
-        let mut articles = data.articles.lock().unwrap();
-        let article = articles.get_mut(owner.ap_id.inner()).unwrap();
-        let edit_ids = article
-            .edits
-            .iter()
-            .map(|e| e.id.clone())
-            .collect::<Vec<_>>();
-        for e in edits.clone() {
-            if !edit_ids.contains(&&e.id) {
-                article.edits.push(e);
-            }
-        }
         // TODO: return value propably not needed
         Ok(DbEditCollection(edits))
     }

tests/test.rs

@@ -292,7 +292,9 @@ async fn test_edit_conflict() -> MyResult<()> {
         ap_id: create_res.ap_id,
         new_text: "Ipsum Lorem".to_string(),
     };
-    let edit_res: DbArticle = patch(data.hostname_gamma, "article", &edit_form).await?;
+    dbg!(&edit_form);
+    let edit_res: DbArticle = dbg!(patch(data.hostname_gamma, "article", &edit_form).await)?;
+    dbg!(&edit_res);
     assert_eq!(edit_res.text, edit_form.new_text);
     assert_eq!(edit_res.edits.len(), 1);
     assert!(!edit_res.local);