add: channels/messages database functions

chore: bump contrasted

crates/core/src/database/messages.rs

@@ -0,0 +1,189 @@
+use super::*;
+use crate::cache::Cache;
+use crate::model::moderation::AuditLogEntry;
+use crate::model::{
+    Error, Result, auth::User, permissions::FinePermission,
+    communities_permissions::CommunityPermission, channels::Message,
+};
+use crate::{auto_method, execute, get, query_row, query_rows, params};
+
+#[cfg(feature = "sqlite")]
+use rusqlite::Row;
+
+use tetratto_shared::unix_epoch_timestamp;
+#[cfg(feature = "postgres")]
+use tokio_postgres::Row;
+
+impl DataManager {
+    /// Get a [`Message`] from an SQL row.
+    pub(crate) fn get_message_from_row(
+        #[cfg(feature = "sqlite")] x: &Row<'_>,
+        #[cfg(feature = "postgres")] x: &Row,
+    ) -> Message {
+        Message {
+            id: get!(x->0(i64)) as usize,
+            channel: get!(x->1(i64)) as usize,
+            owner: get!(x->2(i64)) as usize,
+            created: get!(x->3(i64)) as usize,
+            edited: get!(x->4(i64)) as usize,
+            content: get!(x->5(String)),
+            context: serde_json::from_str(&get!(x->6(String))).unwrap(),
+        }
+    }
+
+    auto_method!(get_message_by_id(usize)@get_message_from_row -> "SELECT * FROM messages WHERE id = $1" --name="message" --returns=Message --cache-key-tmpl="atto.message:{}");
+
+    /// Get all messages by channel (paginated).
+    ///
+    /// # Arguments
+    /// * `channel` - the ID of the community to fetch channels for
+    /// * `batch` - the limit of items in each page
+    /// * `page` - the page number
+    pub async fn get_messages_by_channel(
+        &self,
+        channel: usize,
+        batch: usize,
+        page: usize,
+    ) -> Result<Vec<Message>> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = query_rows!(
+            &conn,
+            "SELECT * FROM messages WHERE channel = $1 ORDER BY created DESC LIMIT $1 OFFSET $2",
+            &[&(channel as i64), &(batch as i64), &((page * batch) as i64)],
+            |x| { Self::get_message_from_row(x) }
+        );
+
+        if res.is_err() {
+            return Err(Error::GeneralNotFound("message".to_string()));
+        }
+
+        Ok(res.unwrap())
+    }
+
+    /// Create a new message in the database.
+    ///
+    /// # Arguments
+    /// * `data` - a mock [`Message`] object to insert
+    pub async fn create_message(&self, data: Message) -> Result<()> {
+        let user = self.get_user_by_id(data.owner).await?;
+        let channel = self.get_channel_by_id(data.channel).await?;
+
+        // check user permission in community
+        let membership = self
+            .get_membership_by_owner_community(user.id, channel.community)
+            .await?;
+
+        if !membership.role.check_member() {
+            return Err(Error::NotAllowed);
+        }
+
+        // check user permission to post in channel
+        let role = membership.role.bits();
+
+        if role < channel.minimum_role_write {
+            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,
+            "INSERT INTO messages VALUES ($1, $2, $3, $4, $5, $6, $7)",
+            params![
+                &(data.id as i64),
+                &(data.channel as i64),
+                &(data.owner as i64),
+                &(data.created as i64),
+                &(data.edited as i64),
+                &data.content,
+                &serde_json::to_string(&data.context).unwrap()
+            ]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        Ok(())
+    }
+
+    pub async fn delete_message(&self, id: usize, user: User) -> Result<()> {
+        let message = self.get_message_by_id(id).await?;
+        let channel = self.get_channel_by_id(message.channel).await?;
+
+        // check user permission in community
+        let membership = self
+            .get_membership_by_owner_community(user.id, channel.community)
+            .await?;
+
+        if !membership.role.check(CommunityPermission::MANAGE_MESSAGES)
+            && !user.permissions.check(FinePermission::MANAGE_MESSAGES)
+        {
+            return Err(Error::NotAllowed);
+        } else if user.permissions.check(FinePermission::MANAGE_MESSAGES) {
+            self.create_audit_log_entry(AuditLogEntry::new(
+                user.id,
+                format!("invoked `delete_message` with x value `{id}`"),
+            ))
+            .await?
+        }
+
+        // ...
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(&conn, "DELETE FROM messages WHERE id = $1", &[&(id as i64)]);
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        self.2.remove(format!("atto.message:{}", id)).await;
+        Ok(())
+    }
+
+    pub async fn update_message_content(&self, id: usize, user: User, x: String) -> Result<()> {
+        let y = self.get_message_by_id(id).await?;
+
+        if user.id != y.owner {
+            if !user.permissions.check(FinePermission::MANAGE_MESSAGES) {
+                return Err(Error::NotAllowed);
+            } else {
+                self.create_audit_log_entry(AuditLogEntry::new(
+                    user.id,
+                    format!("invoked `update_message_content` with x value `{id}`"),
+                ))
+                .await?
+            }
+        }
+
+        // ...
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(
+            &conn,
+            "UPDATE messages SET content = $1, edited = $2 WHERE id = $2",
+            params![&x, &(unix_epoch_timestamp() as i64), &(id as i64)]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        // return
+        Ok(())
+    }
+}