add move link

src/models/link.rs

@@ -2,7 +2,7 @@ use serde::{Deserialize, Serialize};
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct Link {
-    id: u64,
+    pub id: u64,
     pub link: String,
     pub name: String,
     position: i64,
@@ -38,4 +38,54 @@ impl Link {
             .fetch_all(crate::database::get_db())
             .await
     }
+
+    #[cfg(feature = "ssr")]
+    pub async fn move_position(
+        link_id: String,
+        direction: String,
+    ) -> Result<sqlx::mysql::MySqlQueryResult, sqlx::Error> {
+        let link = sqlx::query!(
+            "SELECT id, name, link, position, created_at FROM links WHERE id = ?",
+            link_id
+        )
+        .map(|x| Self {
+            id: x.id,
+            name: x.name,
+            link: x.link,
+            position: x.position,
+            created_at: x.created_at.format("%d/%m/%Y %H:%M").to_string(),
+        })
+        .fetch_one(crate::database::get_db())
+        .await;
+
+        match link {
+            Ok(link) => {
+                let position = link.position;
+                let flow = match direction.as_str() {
+                    "prev" => -1,
+                    "next" => 1,
+                    _ => 0,
+                };
+                let _ = sqlx::query!(
+                    "UPDATE links SET position = ? WHERE position = ?",
+                    position - flow,
+                    position + flow
+                )
+                .execute(crate::database::get_db())
+                .await;
+
+                sqlx::query!(
+                    "UPDATE links SET position = ? WHERE id = ?",
+                    position + flow,
+                    link_id
+                )
+                .execute(crate::database::get_db())
+                .await
+            }
+            Err(_) => {
+                print!("Error position");
+                panic!("not fount")
+            }
+        }
+    }
 }