elearning/Frontend-Learner/pages/browse/discovery.vue

267 lines
8.3 KiB
Vue

<script setup lang="ts">
/**
* @file discovery.vue
* @description Course Discovery / Catalog Page.
* Allows users to browse, filter, and view details of available courses.
* Includes a toggleable detailed view for course previews.
*/
definePageMeta({
layout: "default",
middleware: "auth",
});
useHead({
title: "รายการคอร์ส - e-Learning",
});
// ==========================================
// 1. State Management
const showDetail = ref(false);
const searchQuery = ref("");
const selectedCategoryIds = ref<number[]>([]);
const categories = ref<any[]>([]);
const courses = ref<any[]>([]);
const selectedCourse = ref<any>(null);
const isLoading = ref(false);
const isLoadingDetail = ref(false);
const isEnrolling = ref(false);
const { t } = useI18n();
const { currentUser } = useAuth();
const { fetchCategories } = useCategory();
const { fetchCourses, fetchCourseById, enrollCourse } = useCourse();
// 2. Computed Properties
const sortOption = ref(computed(() => t('discovery.sortRecent')));
const sortOptions = computed(() => [t('discovery.sortRecent')]);
const filteredCourses = computed(() => {
let result = courses.value;
if (selectedCategoryIds.value.length > 0) {
result = result.filter(c => selectedCategoryIds.value.includes(c.category_id));
}
if (searchQuery.value) {
const query = searchQuery.value.toLowerCase();
result = result.filter(c => {
const title = getLocalizedText(c.title).toLowerCase();
const desc = getLocalizedText(c.description).toLowerCase();
return title.includes(query) || (desc && desc.includes(query));
});
}
return result;
});
// 3. Helper Functions
const getLocalizedText = (text: string | { th: string; en: string } | undefined) => {
if (!text) return '';
if (typeof text === 'string') return text;
return text.th || text.en || '';
};
// 4. API Actions
const loadCategories = async () => {
const res = await fetchCategories();
if (res.success) categories.value = res.data || [];
};
const loadCourses = async () => {
isLoading.value = true;
const res = await fetchCourses();
if (res.success) {
courses.value = res.data || [];
}
isLoading.value = false;
};
const selectCourse = async (id: number) => {
isLoadingDetail.value = true;
selectedCourse.value = null;
showDetail.value = true;
const res = await fetchCourseById(id);
if (res.success) selectedCourse.value = res.data;
isLoadingDetail.value = false;
};
const handleEnroll = async (id: number) => {
if (isEnrolling.value) return;
isEnrolling.value = true;
const res = await enrollCourse(id);
if (res.success) {
return navigateTo('/dashboard/my-courses?enrolled=true');
} else {
alert(res.error || 'Failed to enroll');
}
isEnrolling.value = false;
};
onMounted(() => {
loadCategories();
loadCourses();
});
</script>
<template>
<div class="page-container">
<!-- CATALOG VIEW: Browse courses -->
<div v-if="!showDetail">
<!-- Top Header Area -->
<div class="flex flex-col md:flex-row md:items-center justify-between gap-6 mb-10">
<!-- Title -->
<h1 class="text-3xl font-black text-slate-900 dark:text-white">
{{ $t('discovery.title') }}
</h1>
<!-- Right Side: Search & Sort -->
<div class="flex items-center gap-3">
<!-- Search Input -->
<q-input
v-model="searchQuery"
dense
outlined
rounded
:placeholder="$t('discovery.searchPlaceholder')"
class="disc-search w-full md:w-64"
>
<template v-slot:append>
<q-icon name="search" class="text-slate-400" />
</template>
</q-input>
</div>
</div>
<!-- Main Layout: Sidebar + Grid -->
<div class="flex flex-col lg:flex-row gap-8 items-start">
<!-- LEFT SIDEBAR: Category Filter -->
<div class="w-full lg:w-64 flex-shrink-0 lg:sticky lg:top-24">
<CategorySidebar
:categories="categories"
v-model="selectedCategoryIds"
/>
</div>
<!-- RIGHT CONTENT: Course Grid -->
<div class="flex-1 w-full">
<div v-if="filteredCourses.length > 0" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
<CourseCard
v-for="course in filteredCourses"
:key="course.id"
:title="course.title"
:price="course.price"
:description="course.description"
:rating="course.rating"
:lessons="course.lessons"
:image="course.thumbnail_url"
show-view-details
@view-details="selectCourse(course.id)"
/>
</div>
<!-- Empty State -->
<div
v-else
class="flex flex-col items-center justify-center py-20 bg-slate-50 dark:bg-slate-800/50 rounded-3xl border-2 border-dashed border-slate-200 dark:border-slate-700"
>
<h3 class="text-xl font-bold text-slate-900 dark:text-white mb-2">{{ $t('discovery.emptyTitle') }}</h3>
<p class="text-slate-500 dark:text-slate-400 text-center max-w-md">
{{ $t('discovery.emptyDesc') }}
</p>
<button class="mt-6 font-bold text-blue-600 hover:underline" @click="searchQuery = ''; selectedCategoryIds = []">
{{ $t('discovery.showAll') }}
</button>
</div>
</div>
</div>
</div>
<!-- COURSE DETAIL VIEW: Detailed information about a specific course -->
<div v-else>
<button
@click="showDetail = false"
class="inline-flex items-center gap-2 text-slate-600 dark:text-white hover:text-blue-600 dark:hover:text-blue-300 mb-6 transition-all font-black text-lg md:text-xl group"
>
<q-icon name="arrow_back" size="28px" class="transition-transform group-hover:-translate-x-2" />
{{ $t('discovery.backToCatalog') }}
</button>
<div v-if="isLoadingDetail" class="flex justify-center py-20">
<q-spinner size="3rem" color="primary" />
</div>
<CourseDetailView
v-else-if="selectedCourse"
:course="selectedCourse"
:user="currentUser"
@back="showDetail = false"
@enroll="handleEnroll"
/>
</div>
</div>
</template>
<style scoped>
/* =========================
Discovery: Quasar Field Fix
- จำกัดผลกระทบเฉพาะช่องค้นหา/เรียงตาม
- ตัด focus ring (กรอบขาว 4 เหลี่ยม)
========================= */
/* ให้หน้าตา input เป็น pill ขาวเหมือนรูป (ทั้ง Light/Dark) */
.disc-search :deep(.q-field__control),
.disc-sort :deep(.q-field__control) {
background: #ffffff !important;
border-radius: 9999px !important;
}
/* สีตัวอักษร/placeholder/icon ให้คมชัด */
.disc-search :deep(.q-field__native),
.disc-search :deep(.q-field__input),
.disc-sort :deep(.q-field__native),
.disc-sort :deep(.q-field__input) {
color: #0f172a !important;
-webkit-text-fill-color: #0f172a !important;
}
.disc-search :deep(.q-placeholder),
.disc-sort :deep(.q-placeholder) {
color: #64748b !important; /* slate-500 */
}
.disc-search :deep(.q-icon),
.disc-sort :deep(.q-icon),
.disc-sort :deep(.q-select__dropdown-icon) {
color: #64748b !important;
}
/* ✅ ตัด “Focus outline / Focus ring” ที่เป็นกรอบสว่าง */
.disc-search :deep(.q-field__control:after),
.disc-sort :deep(.q-field__control:after) {
opacity: 0 !important; /* ตัวนี้มักเป็นเส้น/แสงตอน focus */
}
/* คุมเส้นขอบปกติให้บาง ๆ ไม่เด้งเป็นกรอบขาว */
.disc-search :deep(.q-field__control:before),
.disc-sort :deep(.q-field__control:before) {
border-color: rgba(203, 213, 225, 0.9) !important; /* slate-300 */
}
/* กัน browser outline ซ้อน */
.disc-search :deep(input:focus),
.disc-sort :deep(input:focus) {
outline: none !important;
box-shadow: none !important;
}
</style>