feat: Implement initial landing pages, authentication flows, and course browsing functionality with i18n.

Frontend-Learner/composables/useAuth.ts

@@ -78,14 +78,17 @@ export const useAuth = () => {
   // ฟังก์ชันเข้าสู่ระบบ (Login)
   const login = async (credentials: { email: string; password: string }) => {
     try {
-      const data = await $fetch<loginResponse>(`${API_BASE_URL}/auth/login`, {
+      // API returns { code: 200, message: "...", data: { token, user, ... } }
+      const response = await $fetch<any>(`${API_BASE_URL}/auth/login`, {
         method: 'POST',
         body: credentials
       })
 
-      if (data) {
-        // Validation: อนุญาตเฉพาะ Role 'STUDENT' เท่านั้น
-        if (data.user.role.code !== 'STUDENT') {
+      if (response && response.data) {
+        const data = response.data
+
+        // Validation: Ensure user and role exist, then check for Role 'STUDENT'
+        if (!data.user || !data.user.role || data.user.role.code !== 'STUDENT') {
           return { success: false, error: 'Email ไม่ถูกต้อง' }
         }
 
@@ -360,6 +363,44 @@ export const useAuth = () => {
     return false
   }
 
+  // ฟังก์ชันส่งอีเมลยืนยันตัวตน
+  const sendVerifyEmail = async () => {
+    if (!token.value) return { success: false, error: 'Token missing' }
+
+    const doSend = async () => {
+        return await $fetch<{code: number, message: string}>(`${API_BASE_URL}/user/send-verify-email`, {
+            method: 'POST',
+            headers: {
+            Authorization: `Bearer ${token.value}`
+            }
+        })
+    }
+
+    try {
+      const res = await doSend()
+      return { success: true, message: res.message }
+    } catch (err: any) {
+      if (err.statusCode === 400) {
+        return { success: false, error: 'Email already verified', code: 400 }
+      }
+      if (err.statusCode === 401) {
+          const refreshed = await refreshAccessToken()
+          if (refreshed) {
+              try {
+                  const res = await doSend()
+                  return { success: true, message: res.message }
+              } catch (retryErr: any) {
+                  return { success: false, error: retryErr.data?.message || 'Failed to send verification email' }
+              }
+          } else {
+             logout()
+             return { success: false, error: 'Session expired' }
+          }
+      }
+      return { success: false, error: err.data?.message || 'Failed to send verification email' }
+    }
+  }
+
   // ฟังก์ชันออกจากระบบ (Logout)
   const logout = () => {
     token.value = null
@@ -401,6 +442,7 @@ export const useAuth = () => {
     changePassword,
     uploadAvatar,
     refreshAccessToken,
-    logout
+    logout,
+    sendVerifyEmail
   }
 }