add: reactions

crates/core/src/database/reactions.rs

@@ -0,0 +1,142 @@
+use super::*;
+use crate::cache::Cache;
+use crate::model::reactions::AssetType;
+use crate::model::{Error, Result, auth::User, permissions::FinePermission, reactions::Reaction};
+use crate::{auto_method, execute, get, query_row};
+
+#[cfg(feature = "sqlite")]
+use rusqlite::Row;
+
+#[cfg(feature = "postgres")]
+use tokio_postgres::Row;
+
+impl DataManager {
+    /// Get a [`Reaction`] from an SQL row.
+    pub(crate) fn get_reaction_from_row(
+        #[cfg(feature = "sqlite")] x: &Row<'_>,
+        #[cfg(feature = "postgres")] x: &Row,
+    ) -> Reaction {
+        Reaction {
+            id: get!(x->0(u64)) as usize,
+            created: get!(x->1(u64)) as usize,
+            owner: get!(x->2(u64)) as usize,
+            asset: get!(x->3(u64)) as usize,
+            asset_type: serde_json::from_str(&get!(x->4(String))).unwrap(),
+        }
+    }
+
+    auto_method!(get_reaction_by_id()@get_reaction_from_row -> "SELECT * FROM reactions WHERE id = $1" --name="reaction" --returns=Reaction --cache-key-tmpl="atto.reaction:{}");
+
+    /// Get a reaction by `owner` and `asset`.
+    pub async fn get_reaction_by_owner_asset(
+        &self,
+        owner: usize,
+        asset: usize,
+    ) -> Result<Reaction> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = query_row!(
+            &conn,
+            "SELECT * FROM reactions WHERE owner = $1 AND asset = $2",
+            &[&owner, &asset],
+            |x| { Ok(Self::get_reaction_from_row(x)) }
+        );
+
+        if res.is_err() {
+            return Err(Error::GeneralNotFound("reactions".to_string()));
+        }
+
+        Ok(res.unwrap())
+    }
+
+    /// Create a new journal page membership in the database.
+    ///
+    /// # Arguments
+    /// * `data` - a mock [`Reaction`] object to insert
+    pub async fn create_reaction(&self, data: Reaction) -> Result<()> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(
+            &conn,
+            "INSERT INTO reactions VALUES ($1, $2, $3, $4, $5",
+            &[
+                &data.id.to_string().as_str(),
+                &data.created.to_string().as_str(),
+                &data.owner.to_string().as_str(),
+                &data.asset.to_string().as_str(),
+                &serde_json::to_string(&data.asset_type).unwrap().as_str(),
+            ]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        // incr corresponding
+        match data.asset_type {
+            AssetType::JournalPage => {
+                if let Err(e) = self.incr_page_likes(data.id).await {
+                    return Err(e);
+                }
+            }
+            AssetType::JournalEntry => {
+                if let Err(e) = self.incr_entry_likes(data.id).await {
+                    return Err(e);
+                }
+            }
+        };
+
+        // return
+        Ok(())
+    }
+
+    pub async fn delete_reaction(&self, id: usize, user: User) -> Result<()> {
+        let reaction = self.get_reaction_by_id(id).await?;
+
+        if user.id != reaction.owner {
+            if !user.permissions.check(FinePermission::MANAGE_REACTIONS) {
+                return Err(Error::NotAllowed);
+            }
+        }
+
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(
+            &conn,
+            "DELETE FROM reactions WHERE id = $1",
+            &[&id.to_string()]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        self.2.remove(format!("atto.reaction:{}", id)).await;
+
+        // decr corresponding
+        match reaction.asset_type {
+            AssetType::JournalPage => {
+                if let Err(e) = self.decr_page_likes(reaction.asset).await {
+                    return Err(e);
+                }
+            }
+            AssetType::JournalEntry => {
+                if let Err(e) = self.decr_entry_likes(reaction.asset).await {
+                    return Err(e);
+                }
+            }
+        };
+
+        // return
+        Ok(())
+    }
+}