Read and serve

crates/lavina-core/migrations/5_message_datetime.sql

@@ -0,0 +1,2 @@
+alter table messages drop column created_at;
+alter table messages add column created_at datetime default "1970-01-01T00:00:00Z";

crates/lavina-core/src/player.rs

@@ -579,13 +579,13 @@ impl Player {
         let room = self.my_rooms.get(&room_id);
         if let Some(room) = room {
             match room {
-                RoomRef::Local(room) => room.get_message_history().await,
+                RoomRef::Local(room) => room.get_message_history(&self.services).await,
                 RoomRef::Remote { node_id } => {
                     todo!()
                 }
             }
         } else {
-            tracing::info!("Room with ID {room_id:?} not found");
+            tracing::error!("Room with ID {room_id:?} not found");
             // todo: return error
             todo!()
         }

crates/lavina-core/src/repo/dialog.rs

@@ -89,3 +89,13 @@ pub struct StoredDialog {
     pub participant_2: u32,
     pub message_count: u32,
 }
+
+#[derive(FromRow)]
+pub struct StoredMessageWithAuthor {
+    pub room_id: u32,
+    pub id: u32,
+    pub content: String,
+    pub author_id: u32,
+    pub author_name: String,
+    pub created_at: DateTime<Utc>,
+}

crates/lavina-core/src/repo/room.rs

@@ -1,9 +1,10 @@
+use crate::repo::dialog::StoredMessageWithAuthor;
 use anyhow::{anyhow, Result};
 use chrono::{DateTime, Utc};
 use sqlx::FromRow;
 
 use crate::repo::Storage;
-use crate::room::RoomId;
+use crate::room::{HistoryMessage, RoomId, User};
 
 #[derive(FromRow)]
 pub struct StoredRoom {
@@ -29,6 +30,35 @@ impl Storage {
         Ok(res)
     }
 
+    #[tracing::instrument(skip(self), name = "Storage::retrieve_room_message_history")]
+    pub async fn get_room_message_history(&self, room_id: u32) -> Result<Vec<HistoryMessage>> {
+        let mut executor = self.conn.lock().await;
+        let res = sqlx::query_as(
+            "
+                select
+                    messages.id as id,
+                    content,
+                    created_at,
+                    users.id as author_id,
+                    users.name as author_name
+                from
+                    messages
+                join
+                    users
+                        on messages.author_id = users.id
+                where
+                    room_id = ?
+                order by
+                    created_at desc;
+            ",
+        )
+        .bind(room_id)
+        .fetch_all(&mut *executor)
+        .await?;
+
+        Ok(res)
+    }
+
     #[tracing::instrument(skip(self, topic), name = "Storage::create_new_room")]
     pub async fn create_new_room(&self, name: &str, topic: &str) -> Result<u32> {
         let mut executor = self.conn.lock().await;
@@ -71,7 +101,7 @@ impl Storage {
         .bind(id)
         .bind(content)
         .bind(author_id)
-        .bind(created_at.to_string())
+        .bind(created_at)
         .bind(room_id)
         .execute(&mut *executor)
         .await?;

crates/lavina-core/src/room.rs

@@ -5,11 +5,13 @@ use std::{collections::HashMap, hash::Hash, sync::Arc};
 use chrono::{DateTime, Utc};
 use prometheus::{IntGauge, Registry as MetricRegistry};
 use serde::Serialize;
+use sqlx::sqlite::SqliteRow;
+use sqlx::{FromRow, Row};
 use tokio::sync::RwLock as AsyncRwLock;
 
 use crate::player::{PlayerHandle, PlayerId, Updates};
 use crate::prelude::*;
-use crate::Services;
+use crate::{LavinaCore, Services};
 
 /// Opaque room id
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize)]
@@ -158,27 +160,8 @@ impl RoomHandle {
         lock.broadcast_update(update, player_id).await;
     }
 
-    pub async fn get_message_history(&self) -> Vec<HistoryMessage> {
-        return vec![
-            HistoryMessage {
-                id: "kek0".to_string(),
-                body: "Willkommen in Brem'".to_string(),
-                created_at: Utc::now(),
-                author: User {
-                    id: 0,
-                    name: "sauer".to_string(),
-                },
-            },
-            HistoryMessage {
-                id: "kek1".to_string(),
-                body: "Willkommen in Hamburg".to_string(),
-                created_at: Utc::now(),
-                author: User {
-                    id: 0,
-                    name: "sauer".to_string(),
-                },
-            },
-        ];
+    pub async fn get_message_history(&self, services: &LavinaCore) -> Vec<HistoryMessage> {
+        return services.storage.get_room_message_history(self.0.read().await.storage_id).await.unwrap();
     }
 
     #[tracing::instrument(skip(self), name = "RoomHandle::unsubscribe")]
@@ -303,14 +286,30 @@ pub struct RoomInfo {
     pub topic: Str,
 }
 
+#[derive(Debug)]
 pub struct User {
     pub id: u32,
     pub name: String,
 }
 
+#[derive(Debug)]
 pub struct HistoryMessage {
-    pub id: String,
+    pub id: u32,
     pub author: User,
-    pub body: String,
+    pub content: String,
     pub created_at: DateTime<Utc>,
 }
+
+impl FromRow<'_, SqliteRow> for HistoryMessage {
+    fn from_row(row: &SqliteRow) -> sqlx::Result<Self> {
+        Ok(Self {
+            id: row.try_get("id")?,
+            author: User {
+                id: row.try_get("author_id")?,
+                name: row.try_get("author_name")?,
+            },
+            content: row.try_get("content")?,
+            created_at: row.try_get("created_at")?,
+        })
+    }
+}

crates/projection-xmpp/src/presence.rs

@@ -102,10 +102,8 @@ impl<'a> XmppConnection<'a> {
         let mut response = vec![];
 
         for history_message in history_messages.into_iter() {
-            let author_name = Option::from(Name(history_message.author.name.into()));
-
             response.push(XmppHistoryMessage {
-                id: history_message.id,
+                id: history_message.id.to_string(),
                 to: Jid {
                     name: Option::from(Name(self.user.xmpp_muc_name.0.clone().into())),
                     server: Server(self.hostname.clone()),
@@ -114,18 +112,23 @@ impl<'a> XmppConnection<'a> {
                 from: Jid {
                     name: Option::from(room_name.clone()),
                     server: Server(self.hostname_rooms.clone()),
-                    resource: Option::from(Resource("sauer".into())),
+                    resource: Option::from(Resource(history_message.author.name.clone().into())),
                 },
                 delay: Delay::new(
                     Jid {
-                        name: author_name.clone(),
+                        name: Option::from(Name(history_message.author.name.clone().into())),
                         server: Server(self.hostname_rooms.clone()),
                         resource: None,
                     },
                     history_message.created_at.to_rfc3339(),
                 ),
-                body: history_message.body,
+                body: history_message.content.clone(),
             });
+            tracing::info!(
+                "Retrieved message: {:?} {:?}",
+                history_message.author,
+                history_message.content.clone()
+            );
         }
 
         return Ok(response);

docs/running.md

@@ -67,3 +67,35 @@ Or you can build it and run manually:
 
     cargo build --release
     ./target/release/lavina --config config.toml
+
+
+## Migrations
+
+### Prerequisites
+
+Install sqlx-cli into ~/.local/bin:
+
+    cargo install --locked sqlx-cli
+
+### Steps
+
+Migrations run on every application start. For manual run, use sqlx:
+
+    sqlx mig run \
+        --source ./crates/lavina-core/migrations/ \
+        --database-url sqlite://db.sqlite
+
+To see current status:
+
+    sqlx mig info \
+        --source ./crates/lavina-core/migrations/ \
+        --database-url sqlite://db.sqlite
+
+sqlx mig info outputs
+
+    0/installed first
+    1/installed msg author
+    2/installed created at for messages
+    3/installed dialogs
+    4/installed new challenges
+    5/pending message datetime