chore: cleanups and refactorings for cleaner code

crates/bds-core/src/model/generation.rs

@@ -2,7 +2,20 @@ use serde::{Deserialize, Serialize};
 
 /// Tracks content hashes of generated files to skip unchanged writes.
 /// Matches the `generated_file_hashes` table.
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(
+    Debug,
+    Clone,
+    Serialize,
+    Deserialize,
+    diesel::Queryable,
+    diesel::Selectable,
+    diesel::Insertable,
+    diesel::AsChangeset,
+)]
+#[diesel(
+    table_name = crate::db::schema::generated_file_hashes,
+    check_for_backend(diesel::sqlite::Sqlite)
+)]
 pub struct GeneratedFileHash {
     pub project_id: String,
     pub relative_path: String,
@@ -10,7 +23,10 @@ pub struct GeneratedFileHash {
     pub updated_at: i64,
 }
 
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(
+    Debug, Clone, PartialEq, Eq, Serialize, Deserialize, diesel::AsExpression, diesel::FromSqlRow,
+)]
+#[diesel(sql_type = diesel::sql_types::Text)]
 #[serde(rename_all = "lowercase")]
 pub enum NotificationEntity {
     Post,
@@ -19,7 +35,10 @@ pub enum NotificationEntity {
     Template,
 }
 
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(
+    Debug, Clone, PartialEq, Eq, Serialize, Deserialize, diesel::AsExpression, diesel::FromSqlRow,
+)]
+#[diesel(sql_type = diesel::sql_types::Text)]
 #[serde(rename_all = "lowercase")]
 pub enum NotificationAction {
     Created,
@@ -27,14 +46,68 @@ pub enum NotificationAction {
     Deleted,
 }
 
+impl std::str::FromStr for NotificationEntity {
+    type Err = String;
+
+    fn from_str(value: &str) -> Result<Self, Self::Err> {
+        match value {
+            "post" => Ok(Self::Post),
+            "media" => Ok(Self::Media),
+            "script" => Ok(Self::Script),
+            "template" => Ok(Self::Template),
+            _ => Err(format!("invalid NotificationEntity: {value}")),
+        }
+    }
+}
+
+impl NotificationEntity {
+    pub const fn as_str(&self) -> &'static str {
+        match self {
+            Self::Post => "post",
+            Self::Media => "media",
+            Self::Script => "script",
+            Self::Template => "template",
+        }
+    }
+}
+
+impl std::str::FromStr for NotificationAction {
+    type Err = String;
+
+    fn from_str(value: &str) -> Result<Self, Self::Err> {
+        match value {
+            "created" => Ok(Self::Created),
+            "updated" => Ok(Self::Updated),
+            "deleted" => Ok(Self::Deleted),
+            _ => Err(format!("invalid NotificationAction: {value}")),
+        }
+    }
+}
+
+impl NotificationAction {
+    pub const fn as_str(&self) -> &'static str {
+        match self {
+            Self::Created => "created",
+            Self::Updated => "updated",
+            Self::Deleted => "deleted",
+        }
+    }
+}
+
 /// Notification for CLI-to-app synchronization.
 /// Matches the `db_notifications` table.
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone, Serialize, Deserialize, diesel::Queryable, diesel::Selectable)]
+#[diesel(
+    table_name = crate::db::schema::db_notifications,
+    check_for_backend(diesel::sqlite::Sqlite)
+)]
 pub struct DbNotification {
+    #[diesel(deserialize_as = i32)]
     pub id: i64,
     pub entity_type: NotificationEntity,
     pub entity_id: String,
     pub action: NotificationAction,
+    #[diesel(deserialize_as = crate::db::types::DbBool)]
     pub from_cli: bool,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub seen_at: Option<i64>,