Merge pull request #20 from leomurca/feature/professor_classroomHEADmain

Feature/professor classroom

1 files changed, 31 insertions, 0 deletions

diff --git a/src/services/provider.js b/src/services/provider.js
new file mode 100644
index 0000000..038bf5c
--- /dev/null
+++ b/src/services/provider.js
@@ -0,0 +1,31 @@
+export const UserServiceProvider = (function () {
+  let instance;
+
+  async function createInstance(user) {
+    switch (user.role) {
+      case 'STUDENT':
+        const studentService = await import('./student');
+        if (studentService) {
+          return new studentService.default(user);
+        }
+        break;
+      case 'PROFESSOR':
+        const professorService = await import('./professor');
+        if (professorService) {
+          return new professorService.default(user);
+        }
+        break;
+      default:
+        throw new Error('Invalid Role!');
+    }
+  }
+
+  return {
+    getInstance: async function (user) {
+      if (!instance) {
+        instance = await createInstance(user);
+      }
+      return instance;
+    },
+  };
+})();