From 0afbd3f08bfe70a3f2ec6918acfc21d18d1f9612 Mon Sep 17 00:00:00 2001
From: supalerk-ar66 <supalerk_ar66@live.rmutl.ac.th>
Date: Wed, 11 Feb 2026 13:49:08 +0700
Subject: [PATCH] feat: add CourseDetailView component with video preview,
 curriculum, enrollment logic, and i18n support

---
 .../components/discovery/CourseDetailView.vue | 63 ++++++++-----------
 Frontend-Learner/i18n/locales/en.json         |  3 +-
 Frontend-Learner/i18n/locales/th.json         |  3 +-
 3 files changed, 31 insertions(+), 38 deletions(-)

diff --git a/Frontend-Learner/components/discovery/CourseDetailView.vue b/Frontend-Learner/components/discovery/CourseDetailView.vue
index 3ccad2a2..8e741b69 100644
--- a/Frontend-Learner/components/discovery/CourseDetailView.vue
+++ b/Frontend-Learner/components/discovery/CourseDetailView.vue
@@ -48,10 +48,11 @@ const handleEnroll = () => {
 <template>
     <div class="animate-fade-in-up">
         <q-btn 
-            flat 
+            unelevated
+            rounded
             icon="arrow_back" 
             :label="$t('common.back')" 
-            class="mb-6 font-bold text-slate-500 hover:text-slate-800 dark:text-slate-400 dark:hover:text-white transition-colors"
+            class="mb-8 font-bold bg-slate-100 text-slate-700 hover:bg-slate-200 dark:bg-white/10 dark:text-white dark:hover:bg-white/20 transition-all px-4 shadow-sm"
             @click="emit('back')"
         />
 
@@ -73,13 +74,17 @@ const handleEnroll = () => {
                      </template>
                      <!-- Placeholder if no video -->
                      <template v-else>
-                         <img 
-                            :src="course.cover_image || 'https://placehold.co/800x450?text=No+Preview'" 
-                            class="w-full h-full object-cover opacity-60"
-                        />
-                         <div class="absolute inset-0 flex items-center justify-center">
-                             <div class="w-16 h-16 bg-white/20 backdrop-blur-sm rounded-full flex items-center justify-center ring-1 ring-white/50">
-                                  <q-icon name="play_arrow" size="40px" class="text-white" />
+                         <div class="w-full h-full bg-gradient-to-br from-slate-200 to-slate-300 dark:from-slate-800 dark:to-slate-900 flex items-center justify-center relative overflow-hidden">
+                             <!-- Subtle background pattern or logo could go here -->
+                             <div class="absolute inset-0 opacity-10 dark:opacity-20">
+                                 <div class="absolute top-0 left-0 w-full h-full" style="background-image: radial-gradient(circle at 2px 2px, currentColor 1px, transparent 0); background-size: 24px 24px;"></div>
+                             </div>
+                             
+                             <div class="relative z-10 flex flex-col items-center gap-4">
+                                <div class="w-20 h-20 bg-white/30 dark:bg-white/10 backdrop-blur-md rounded-full flex items-center justify-center ring-1 ring-white/50 shadow-xl transition-transform group-hover:scale-110 duration-500">
+                                     <q-icon name="play_arrow" size="48px" class="text-white drop-shadow-md" />
+                                </div>
+                                <span class="text-slate-500 dark:text-slate-400 font-bold tracking-wider uppercase text-xs">{{ $t('course.noVideoPreview') || 'Preview Not Available' }}</span>
                              </div>
                          </div>
                      </template>
@@ -92,17 +97,8 @@ const handleEnroll = () => {
                     </h1>
                     <div class="flex flex-wrap items-center gap-4 text-sm text-slate-500 dark:text-slate-400 mb-6">
                         <span class="flex items-center gap-1 bg-slate-100 dark:bg-slate-800 px-3 py-1 rounded-full text-slate-700 dark:text-slate-300 font-medium">
-                            <q-icon name="category" size="16px" class="text-blue-500" />
                             {{ getLocalizedText(course.category?.name) }}
                         </span>
-                         <span class="flex items-center gap-1">
-                            <q-icon name="schedule" size="16px" />
-                            {{ course.duration_minutes || 60 }} {{ $t('course.minutes') }}
-                        </span>
-                         <span class="flex items-center gap-1">
-                            <q-icon name="person" size="16px" />
-                            {{ course.instructor?.first_name }} {{ course.instructor?.last_name }}
-                        </span>
                     </div>
 
                     <div class="prose max-w-none text-slate-600 dark:text-slate-400 leading-relaxed font-light">
@@ -111,7 +107,7 @@ const handleEnroll = () => {
                 </div>
 
                 <!-- Curriculum Preview -->
-                <div class="bg-slate-50 dark:bg-white/5 rounded-3xl p-6 md:p-8">
+                <div class="bg-slate-100/50 dark:bg-slate-800/50 rounded-3xl p-6 md:p-8 border border-transparent dark:border-slate-700/50">
                     <h3 class="text-xl font-bold text-slate-900 dark:text-white mb-6 flex items-center gap-2">
                          <q-icon name="list_alt" class="text-blue-600 dark:text-blue-400" />
                          {{ $t('course.courseContent') }}
@@ -136,8 +132,9 @@ const handleEnroll = () => {
                                  </div>
                              </div>
                         </div>
-                         <div v-if="!course.chapters || course.chapters.length === 0" class="text-center text-slate-400 dark:text-slate-600 py-8">
-                             {{ $t('course.noContent') }}
+                         <div v-if="!course.chapters || course.chapters.length === 0" class="flex flex-col items-center justify-center py-12 text-slate-400 dark:text-slate-500 bg-white/50 dark:bg-slate-900/50 rounded-2xl border-2 border-dashed border-slate-200 dark:border-slate-800">
+                             <q-icon name="menu_book" size="40px" class="mb-2 opacity-50" />
+                             <p class="text-sm font-medium">{{ $t('course.noContent') }}</p>
                         </div>
                     </div>
                 </div>
@@ -147,12 +144,17 @@ const handleEnroll = () => {
             <!-- Right: Enrollment Card -->
             <div class="lg:col-span-1">
                  <div class="sticky top-24">
-                     <div class="bg-white dark:bg-slate-900 rounded-3xl shadow-xl shadow-slate-200/50 dark:shadow-none p-6 border border-slate-100 dark:border-slate-800 relative overflow-hidden">
-                          <div class="absolute top-0 right-0 w-32 h-32 bg-gradient-to-br from-blue-500/10 to-purple-500/10 rounded-full blur-3xl -mr-16 -mt-16"></div>
+                     <div class="bg-white dark:bg-slate-800/40 dark:backdrop-blur-xl rounded-3xl shadow-xl shadow-slate-200/50 dark:shadow-none p-6 border border-slate-100 dark:border-white/10 relative overflow-hidden">
+                          <div class="absolute top-0 right-0 w-32 h-32 bg-gradient-to-br from-blue-500/20 to-purple-500/20 rounded-full blur-3xl -mr-16 -mt-16"></div>
                           
                           <div class="relative">
-                            <div class="text-3xl font-black text-slate-900 dark:text-white mb-2 font-display">
-                                {{ course.price > 0 ? formatPrice(course.price) : $t('course.free') }}
+                            <div class="text-3xl font-black mb-2 font-display">
+                                <span v-if="course.price > 0" class="text-slate-900 dark:text-white">
+                                    {{ formatPrice(course.price) }}
+                                </span>
+                                <span v-else class="text-blue-600 dark:text-blue-400 drop-shadow-sm">
+                                    {{ $t('course.free') }}
+                                </span>
                             </div>
                             <div v-if="course.price > 0" class="text-sm text-slate-500 dark:text-slate-400 mb-6 line-through">
                                  {{ formatPrice(Number(course.price) * 2) }}
@@ -169,21 +171,10 @@ const handleEnroll = () => {
                                 @click="handleEnroll"
                             />
                             
-                            <div class="text-xs text-center text-slate-400 dark:text-slate-500">
-                                {{ $t('course.satisfactionGuarantee') }}
-                            </div>
 
                             <hr class="my-6 border-slate-100 dark:border-slate-800">
                              
                             <div class="space-y-3 block">
-                                <div class="flex items-center gap-3 text-sm text-slate-600 dark:text-slate-400">
-                                    <q-icon name="check_circle" class="text-green-500" />
-                                    {{ $t('course.lifetimeAccess') }}
-                                </div>
-                                <div class="flex items-center gap-3 text-sm text-slate-600 dark:text-slate-400">
-                                    <q-icon name="check_circle" class="text-green-500" />
-                                    {{ $t('course.unlimitedQuizzes') }}
-                                </div>
                                 <div class="flex items-center gap-3 text-sm text-slate-600 dark:text-slate-400">
                                     <q-icon name="check_circle" class="text-green-500" />
                                     {{ $t('course.certificate') }} ({{ $t('course.available') }})
diff --git a/Frontend-Learner/i18n/locales/en.json b/Frontend-Learner/i18n/locales/en.json
index fc22ff1a..d27dd01e 100644
--- a/Frontend-Learner/i18n/locales/en.json
+++ b/Frontend-Learner/i18n/locales/en.json
@@ -47,7 +47,8 @@
     "buyNow": "Buy this course",
     "enrollFree": "Enroll for free",
     "loginToEnroll": "Log in to enroll",
-    "minutes": "Minutes"
+    "minutes": "Minutes",
+    "noVideoPreview": "Video preview not available"
   },
   "sidebar": {
     "overview": "Home",
diff --git a/Frontend-Learner/i18n/locales/th.json b/Frontend-Learner/i18n/locales/th.json
index 66d4fa04..44fa940b 100644
--- a/Frontend-Learner/i18n/locales/th.json
+++ b/Frontend-Learner/i18n/locales/th.json
@@ -47,7 +47,8 @@
     "buyNow": "ซื้อคอร์สเรียนนี้",
     "enrollFree": "ลงทะเบียนเรียนฟรี",
     "loginToEnroll": "เข้าสู่ระบบเพื่อลงทะเบียน",
-    "minutes": "นาที"
+    "minutes": "นาที",
+    "noVideoPreview": "วิดีโอตัวอย่างยังไม่พร้อมใช้งาน"
   },
   "sidebar": {
     "overview": "หน้าหลัก",