hexagonal refactor

src/domain.rs

@@ -0,0 +1,57 @@
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum DomainError {
+    #[error("database error: {0}")]
+    Database(String),
+    #[error("record not found")]
+    NotFound,
+    #[error("record already exists")]
+    Conflict,
+}
+
+pub type DomainResult<T> = Result<T, DomainError>;
+
+#[derive(Clone, Debug)]
+pub struct User {
+    pub id: i64,
+    pub email: String,
+    pub display_name: String,
+}
+
+#[derive(Clone, Debug)]
+pub struct SessionUser {
+    pub user: User,
+    pub csrf_token: String,
+}
+
+#[derive(Clone, Debug)]
+pub struct GroceryList {
+    pub id: i64,
+    pub name: String,
+    pub revision: i64,
+}
+
+#[derive(Clone, Debug)]
+pub struct Item {
+    pub id: i64,
+    pub list_id: i64,
+    pub name: String,
+    pub quantity: String,
+    pub note: String,
+    pub category_id: Option<i64>,
+    pub checked: bool,
+    pub version: i64,
+}
+
+#[derive(Clone, Debug)]
+pub struct Category {
+    pub id: i64,
+    pub name: String,
+}
+
+#[derive(Clone, Debug)]
+pub struct PresenceUser {
+    pub user_id: i64,
+    pub display_name: String,
+}