tsk-50: Create Special endpoint for services to obtain a token (#53)

Reviewed-on: phoenix/icarus_auth#53
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

src/repo/mod.rs

@@ -195,3 +195,32 @@ pub mod salt {
         }
     }
 }
+
+pub mod service {
+    use sqlx::Row;
+
+    pub async fn valid_passphrase(
+        pool: &sqlx::PgPool,
+        passphrase: &String,
+    ) -> Result<(uuid::Uuid, String, time::OffsetDateTime), sqlx::Error> {
+        let result = sqlx::query(
+            r#"
+            SELECT * FROM "passphrase" WHERE passphrase = $1
+            "#,
+        )
+        .bind(passphrase)
+        .fetch_one(pool)
+        .await;
+
+        match result {
+            Ok(row) => {
+                let id: uuid::Uuid = row.try_get("id")?;
+                let passphrase: String = row.try_get("passphrase")?;
+                let date_created: Option<time::OffsetDateTime> = row.try_get("date_created")?;
+
+                Ok((id, passphrase, date_created.unwrap()))
+            }
+            Err(err) => Err(err),
+        }
+    }
+}