Get songs endpoint (#162)

* Added test_migrations directory

* Added skeleton endpoint to get songs

* Code formatting

* Added more code

* Added TODO

* Code formatting

* Updated album in album json file

* Changing directory name

* Test refactoring

* Forgot to include this

* Added test for getting songs and added function for test_migrations

* Adding test migrations

* Removing placeholder

* Renamed

* Renamed

* Fixed what caused test failure

* Created migration with cli command

Creating test_migrations/20250725213448_migration_name.sql

* Migration changes

* Removing migration

* More migration changes

* Made endpoint available

* Migration changes

* Got the test to work

* Cleaned up test

* Code formatting

* More cleanup

* Version bump

src/callers/song.rs

@@ -92,6 +92,13 @@ pub mod request {
             pub user_id: uuid::Uuid,
         }
     }
+
+    pub mod get_songs {
+        #[derive(Debug, Default, serde::Deserialize, serde::Serialize)]
+        pub struct Params {
+            pub id: Option<uuid::Uuid>,
+        }
+    }
 }
 
 pub mod response {
@@ -158,6 +165,14 @@ pub mod response {
             pub data: Vec<uuid::Uuid>,
         }
     }
+
+    pub mod get_songs {
+        #[derive(Debug, Default, serde::Deserialize, serde::Serialize)]
+        pub struct Response {
+            pub message: String,
+            pub data: Vec<icarus_models::song::Song>,
+        }
+    }
 }
 
 // TODO: Might make a distinction between year and date in a song's tag at some point
@@ -968,4 +983,32 @@ pub mod endpoint {
             }
         }
     }
+
+    pub async fn get_songs(
+        axum::Extension(pool): axum::Extension<sqlx::PgPool>,
+        axum::extract::Query(params): axum::extract::Query<super::request::get_songs::Params>,
+    ) -> (
+        axum::http::StatusCode,
+        Json<super::response::get_songs::Response>,
+    ) {
+        let mut response = super::response::get_songs::Response::default();
+
+        match params.id {
+            Some(id) => match super::song_db::get_song(&pool, &id).await {
+                Ok(song) => {
+                    response.message = String::from(super::super::response::SUCCESSFUL);
+                    response.data.push(song);
+                    (axum::http::StatusCode::OK, axum::Json(response))
+                }
+                Err(err) => {
+                    response.message = err.to_string();
+                    (axum::http::StatusCode::BAD_REQUEST, axum::Json(response))
+                }
+            },
+            None => {
+                response.message = String::from("Invalid parameters");
+                (axum::http::StatusCode::BAD_REQUEST, axum::Json(response))
+            }
+        }
+    }
 }