add: model

src/database/chats.rs

@@ -0,0 +1,101 @@
+use super::DataManager;
+use crate::model::{Chat, ChatStyle};
+use oiseau::{PostgresRow, cache::Cache, execute, get, params};
+use tetratto_core::{
+    auto_method,
+    model::{Error, Result},
+};
+
+impl DataManager {
+    /// Get a [`Chat`] from an SQL row.
+    pub(crate) fn get_chat_from_row(x: &PostgresRow) -> Chat {
+        Chat {
+            id: get!(x->0(i64)) as usize,
+            created: get!(x->1(i64)) as usize,
+            style: serde_json::from_str(&get!(x->2(String))).unwrap(),
+            members: serde_json::from_str(&get!(x->3(String))).unwrap(),
+            last_message_created: get!(x->4(i64)) as usize,
+            last_message_read_by: serde_json::from_str(&get!(x->5(String))).unwrap(),
+        }
+    }
+
+    auto_method!(get_chat_by_id(usize as i64)@get_chat_from_row -> "SELECT * FROM t_chats WHERE id = $1" --name="chat" --returns=Chat --cache-key-tmpl="twny.chat:{}");
+
+    /// Create a new chat in the database.
+    ///
+    /// # Arguments
+    /// * `data` - a mock [`Chat`] object to insert
+    pub async fn create_chat(&self, data: Chat) -> Result<Chat> {
+        // check values
+        if let ChatStyle::Group(ref info) = data.style {
+            if info.name.trim().len() < 2 {
+                return Err(Error::DataTooShort("name".to_string()));
+            } else if info.name.len() > 128 {
+                return Err(Error::DataTooLong("name".to_string()));
+            }
+        }
+
+        // ...
+        let conn = match self.0.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        let res = execute!(
+            &conn,
+            "INSERT INTO t_chats VALUES ($1, $2, $3, $4, $5, $6)",
+            params![
+                &(data.id as i64),
+                &(data.created as i64),
+                &serde_json::to_string(&data.style).unwrap(),
+                &serde_json::to_string(&data.members).unwrap(),
+                &(data.last_message_created as i64),
+                &serde_json::to_string(&data.last_message_read_by).unwrap()
+            ]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        Ok(data)
+    }
+
+    /// Delete an existing chat.
+    pub async fn delete_chat(&self, id: usize) -> Result<()> {
+        let conn = match self.0.connect().await {
+            Ok(c) => c,
+            Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
+        };
+
+        // delete chat
+        let res = execute!(
+            &conn,
+            "DELETE FROM t_chats WHERE id = $1",
+            params![&(id as i64)]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        // delete messages
+        let res = execute!(
+            &conn,
+            "DELETE FROM t_messages WHERE chat = $1",
+            params![&(id as i64)]
+        );
+
+        if let Err(e) = res {
+            return Err(Error::DatabaseError(e.to_string()));
+        }
+
+        // ...
+        Ok(())
+    }
+
+    auto_method!(update_chat_style(ChatStyle) -> "UPDATE t_chats SET style = $1 WHERE id = $2" --serde --cache-key-tmpl="twny.chat:{}");
+    auto_method!(update_chat_members(Vec<usize>) -> "UPDATE t_chats SET members = $1 WHERE id = $2" --serde --cache-key-tmpl="twny.chat:{}");
+    auto_method!(update_chat_last_message_read_by(Vec<usize>) -> "UPDATE t_chats SET last_message_read_by = $1 WHERE id = $2" --serde --cache-key-tmpl="twny.chat:{}");
+    auto_method!(update_chat_last_message_created(i64) -> "UPDATE t_chats SET last_message_created = $1 WHERE id = $2" --cache-key-tmpl="twny.chat:{}");
+}