refactor database

1 files changed, 153 insertions, 0 deletions

diff --git a/src/database/album.rs b/src/database/album.rs
new file mode 100644
index 0000000..87054f1
--- /dev/null
+++ b/src/database/album.rs
@@ -0,0 +1,153 @@
+use crate::database::DatabaseWrapper;
+use serde::{Deserialize, Serialize};
+use sqlx::mysql::MySqlQueryResult;
+
+#[derive(Serialize)]
+pub struct Album {
+    name: Option<String>,
+    id: Option<i32>,
+    cover: Option<String>,
+    artist_name: Option<String>,
+    artist_id: Option<i32>,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct AlbumPost {
+    name: Option<String>,
+    cover: Option<String>,
+    artist_id: Option<String>,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct AlbumPut {
+    id: Option<String>,
+    name: Option<String>,
+    cover: Option<String>,
+    artist_id: Option<String>,
+}
+
+impl DatabaseWrapper {
+    pub async fn select_albums(&self) -> Result<Vec<Album>, sqlx::Error> {
+        sqlx::query_as!(
+            Album,
+            "SELECT album.name, album.id, album.cover,
+            artist.name as artist_name, artist.id as artist_id
+            FROM album
+            INNER JOIN artist ON album.artist_id = artist.id
+            ",
+        )
+        .fetch_all(&self.db_pool)
+        .await
+    }
+
+    pub async fn select_album_by_id(&self, id: &str) -> Result<Option<Album>, sqlx::Error> {
+        sqlx::query_as!(
+            Album,
+            "SELECT album.name, album.id, album.cover,
+            artist.name as artist_name, artist.id as artist_id
+            FROM album
+            INNER JOIN artist ON album.artist_id = artist.id
+            WHERE album.id=?",
+            id,
+        )
+        .fetch_optional(&self.db_pool)
+        .await
+    }
+
+    pub async fn select_albums_by_name(&self, name_raw: &str) -> Result<Vec<Album>, sqlx::Error> {
+        let name: String = format!("{}{}{}", "%", name_raw, "%");
+        sqlx::query_as!(
+            Album,
+            "SELECT album.name, album.id, album.cover,
+            artist.name as artist_name, artist.id as artist_id
+            FROM album
+            INNER JOIN artist ON album.artist_id = artist.id
+            WHERE LOWER(album.name) LIKE LOWER(?)
+            ",
+            name,
+        )
+        .fetch_all(&self.db_pool)
+        .await
+    }
+
+    pub async fn select_albums_by_artist(
+        &self,
+        artist_id: &str,
+    ) -> Result<Vec<Album>, sqlx::Error> {
+        sqlx::query_as!(
+            Album,
+            "SELECT album.name, album.id, album.cover,
+            artist.name as artist_name, artist.id as artist_id
+            FROM album
+            INNER JOIN artist ON album.artist_id = artist.id
+            WHERE artist.id=?",
+            artist_id,
+        )
+        .fetch_all(&self.db_pool)
+        .await
+    }
+
+    pub async fn create_album(&self, data: AlbumPost) -> Result<MySqlQueryResult, sqlx::Error> {
+        if data.name.is_none() || data.artist_id.is_none() {
+            return Err(sqlx::Error::RowNotFound);
+        }
+
+        if match self
+            .select_artist_by_id(data.artist_id.as_ref().unwrap())
+            .await
+        {
+            Ok(res) => res.is_none(),
+            Err(_) => true,
+        } {
+            return Err(sqlx::Error::RowNotFound);
+        }
+
+        sqlx::query!(
+            "INSERT INTO album (name, cover, artist_id)
+            VALUE (?, ?, ?)",
+            data.name,
+            data.cover.unwrap_or(String::default()),
+            data.artist_id,
+        )
+        .execute(&self.db_pool)
+        .await
+    }
+
+    pub async fn edit_album(&self, data: AlbumPut) -> Result<MySqlQueryResult, sqlx::Error> {
+        if data.id.is_none() { return Err(sqlx::Error::RowNotFound); }
+        let og_album: Album = match self.select_album_by_id(data.id.as_ref().unwrap()).await {
+            Ok(res) => match res.is_some() {
+                true => res.unwrap(),
+                false => return Err(sqlx::Error::RowNotFound),
+            }
+            Err(_) => return Err(sqlx::Error::RowNotFound),
+        };
+        sqlx::query!(
+            "UPDATE album SET name=?, cover=? WHERE id=?",
+            data.name.unwrap_or(og_album.name.unwrap_or(String::default())),
+            data.cover.unwrap_or(og_album.cover.unwrap_or(String::default())),
+            data.id,
+        )
+        .execute(&self.db_pool)
+        .await
+    }
+
+    pub async fn delete_album(&self, id: i32) -> Result<MySqlQueryResult, sqlx::Error> {
+        let _ = sqlx::query!(
+            "DELETE FROM song
+            WHERE album_id = ?",
+            id
+        )
+        .execute(&self.db_pool)
+        .await;
+
+        sqlx::query!(
+            "DELETE FROM album
+            WHERE id = ?",
+            id
+        )
+        .execute(&self.db_pool)
+        .await
+    }
+
+}