feat: can add items

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/hyperlog-server/src/services/create_item.rs

@@ -0,0 +1,107 @@
+use hyperlog_core::log::{GraphItem, ItemState};
+use sqlx::types::Json;
+
+use crate::state::SharedState;
+
+#[derive(Clone)]
+pub struct CreateItem {
+    db: sqlx::PgPool,
+}
+
+pub struct Request {
+    pub root: String,
+    pub path: Vec<String>,
+
+    pub title: String,
+    pub description: String,
+    pub state: ItemState,
+}
+pub struct Response {}
+
+#[derive(serde::Serialize)]
+struct ItemContent {
+    pub title: String,
+    pub description: String,
+    pub state: ItemState,
+}
+
+#[derive(sqlx::FromRow)]
+struct Root {
+    id: uuid::Uuid,
+    root_name: String,
+}
+
+#[derive(sqlx::FromRow)]
+struct Section {
+    id: uuid::Uuid,
+}
+
+impl CreateItem {
+    pub fn new(db: sqlx::PgPool) -> Self {
+        Self { db }
+    }
+
+    pub async fn execute(&self, req: Request) -> anyhow::Result<Response> {
+        let Root { id: root_id, .. } =
+            sqlx::query_as(r#"SELECT * FROM roots WHERE root_name = $1"#)
+                .bind(req.root)
+                .fetch_one(&self.db)
+                .await?;
+
+        match req.path.split_last() {
+            Some((_, section_path)) => {
+                if !section_path.is_empty() {
+                    let Section { .. } = sqlx::query_as(
+                        r#"
+            SELECT 
+                * 
+            FROM 
+                nodes 
+            WHERE 
+                root_id = $1 AND 
+                path = $2 AND 
+                item_type = 'SECTION'
+                "#,
+                    )
+                    .bind(root_id)
+                    .bind(section_path.join("."))
+                    .fetch_one(&self.db)
+                    .await?;
+                }
+
+                let node_id = uuid::Uuid::new_v4();
+                sqlx::query(
+                    r#"
+    INSERT INTO nodes 
+         (id, root_id, path, item_type, item_content) 
+     VALUES 
+         ($1, $2, $3, $4, $5)"#,
+                )
+                .bind(node_id)
+                .bind(root_id)
+                .bind(req.path.join("."))
+                .bind("ITEM".to_string())
+                .bind(Json(ItemContent {
+                    title: req.title,
+                    description: req.description,
+                    state: req.state,
+                }))
+                .execute(&self.db)
+                .await?;
+            }
+            None => anyhow::bail!("path most contain at least one item"),
+        }
+
+        Ok(Response {})
+    }
+}
+
+pub trait CreateItemExt {
+    fn create_item_service(&self) -> CreateItem;
+}
+
+impl CreateItemExt for SharedState {
+    fn create_item_service(&self) -> CreateItem {
+        CreateItem::new(self.db.clone())
+    }
+}