add: journals/notes database interfaces

crates/core/src/model/journals.rs

@@ -0,0 +1,69 @@
+use serde::{Serialize, Deserialize};
+use tetratto_shared::{snow::Snowflake, unix_epoch_timestamp};
+
+#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
+pub enum JournalViewPermission {
+    /// Can be accessed by anyone via link.
+    Public,
+    /// Visible only to the journal owner.
+    Private,
+}
+
+impl Default for JournalViewPermission {
+    fn default() -> Self {
+        Self::Private
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct Journal {
+    pub id: usize,
+    pub created: usize,
+    pub owner: usize,
+    pub title: String,
+    pub view: JournalViewPermission,
+}
+
+impl Journal {
+    /// Create a new [`Journal`].
+    pub fn new(owner: usize, title: String) -> Self {
+        Self {
+            id: Snowflake::new().to_string().parse::<usize>().unwrap(),
+            created: unix_epoch_timestamp(),
+            owner,
+            title,
+            view: JournalViewPermission::default(),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct Note {
+    pub id: usize,
+    pub created: usize,
+    pub owner: usize,
+    pub title: String,
+    /// The ID of the [`Journal`] this note belongs to.
+    ///
+    /// The note is subject to the settings set for the journal it's in.
+    pub journal: usize,
+    pub content: String,
+    pub edited: usize,
+}
+
+impl Note {
+    /// Create a new [`Note`].
+    pub fn new(owner: usize, title: String, journal: usize, content: String) -> Self {
+        let created = unix_epoch_timestamp();
+
+        Self {
+            id: Snowflake::new().to_string().parse::<usize>().unwrap(),
+            created,
+            owner,
+            title,
+            journal,
+            content,
+            edited: created,
+        }
+    }
+}