refactor: register student with excel

controllers/auth/auth.js

@@ -621,7 +621,7 @@ export const registerStudentForAdminAndTeacher = async (req, res) => {
     return response(400, null, "NISN is required for students!", res);
   }
 
-  const EMAIL = `${NISN}@gmail.com`;
+  const EMAIL = `${NISN}@student.seals.com`;
   const PASSWORD = "12345678";
 
   const transaction = await models.db.transaction();
@@ -768,17 +768,35 @@ export const registerStudentCSV = async (req, res) => {
   }
 
   const transaction = await models.db.transaction();
+  const processed = [];
+  const duplicates = [];
 
   try {
     for (const student of students) {
       const { NISN, NAME_USERS } = student;
 
-      const EMAIL = `${NISN}@gmail.com`;
+      const EMAIL = `${NISN}@student.seals.com`;
       const PASSWORD = "12345678";
 
       const salt = await bcrypt.genSalt(10);
       const hashedPassword = await bcrypt.hash(PASSWORD, salt);
 
+      const existingUser = await models.User.findOne({ where: { EMAIL } });
+
+      if (existingUser) {
+        duplicates.push(student);
+        continue;
+      }
+
+      const existingStudent = await models.Student.findOne({
+        where: { NISN },
+      });
+
+      if (existingStudent) {
+        duplicates.push(student);
+        continue;
+      }
+
       const newUser = await models.User.create(
         {
           NAME_USERS,
@@ -797,27 +815,26 @@ export const registerStudentCSV = async (req, res) => {
         },
         { transaction }
       );
+
+      processed.push(student);
     }
 
     await transaction.commit();
-    response(200, { success: true }, "Students registered successfully!", res);
+
+    response(
+      200,
+      {
+        success: true,
+        message: "Students registered successfully!",
+        processed,
+        duplicates,
+      },
+      "Operation complete with some duplicates skipped.",
+      res
+    );
   } catch (error) {
     console.error(error);
-
     await transaction.rollback();
-
-    if (error.name === "SequelizeUniqueConstraintError") {
-      const field = error.original.sqlMessage.match(/for key '(.+)'/)[1];
-
-      if (field === "student_unique_nisn") {
-        return response(400, null, "Duplicate NISN found in file!", res);
-      }
-
-      if (field === "user_unique_email") {
-        return response(400, null, "Duplicate email found in file!", res);
-      }
-    }
-
     response(500, null, "Internal Server Error", res);
   }
 };