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import { onMounted, computed } from 'vue'
import { useI18n } from 'vue-i18n'
import {
BarChart3, Layers, GraduationCap, ArrowRight,
XCircle, Loader2, AlertCircle, Rocket
} from 'lucide-vue-next'
import { useDashboard } from '@/composables/useDashboard'
import { useQuotas } from '@/composables/useQuotas'
import { useOpenStackCredentialsStore } from '@/stores/openstack-credentials.store'
import { useAuthStore } from '@/stores/auth.store'
import { useRole } from '@/composables/useRole'
import CredentialMissingBanner from '@/components/CredentialMissingBanner.vue'
const { stats, fetchStats } = useDashboard()
const { formattedQuotas, loading: quotasLoading, needsCredentials, hasCachedQuotas, fetchQuotas, getColorClass } = useQuotas()
const credStore = useOpenStackCredentialsStore()
const authStore = useAuthStore()
const { t } = useI18n()
const { isStaff } = useRole()
const firstName = computed(() => {
const name = authStore.user?.username || ''
return name.charAt(0).toUpperCase() + name.slice(1)
})
const timeGreeting = computed(() => {
const h = new Date().getHours()
if (h < 12) return t('DashboardView.timeGreetings.morning')
if (h < 18) return t('DashboardView.timeGreetings.afternoon')
return t('DashboardView.timeGreetings.evening')
})
onMounted(() => {
fetchStats()
fetchQuotas()
if (!credStore.status) credStore.fetch()
})
</script>
<template>
<div class="space-y-6">
<!-- Banners -->
<CredentialMissingBanner
v-if="credStore.isResolved && !credStore.hasCredential"
variant="warning"
:title="t('banners.credentialsMissing.title')"
:message="t('banners.credentialsMissing.message')"
:cta="t('banners.credentialsMissing.cta')"
ctaTo="/user/openstack"
/>
<CredentialMissingBanner
v-else-if="credStore.isResolved && credStore.lastError"
variant="error"
:title="t('banners.credentialsInvalid.title')"
:message="credStore.lastError"
:cta="t('banners.credentialsInvalid.cta')"
ctaTo="/user/openstack"
/>
<!-- Hero banner -->
<div class="hero-banner">
<div class="hero-content">
<p class="text-white/60 text-xs font-semibold uppercase tracking-widest mb-1">{{ timeGreeting }}</p>
<h1 class="text-white text-3xl font-bold mb-1">{{ firstName }}</h1>
<p class="text-white/60 text-sm">{{ $t('DashboardView.subtitle') }}</p>
</div>
<RouterLink
:to="{ name: 'apps' }"
class="hero-cta group"
>
<Rocket :size="16" class="group-hover:translate-x-0.5 transition-transform" />
{{ $t('DashboardView.deploymentNew') }}
</RouterLink>
</div>
<!-- KPI row -->
<div class="kpi-row">
<RouterLink :to="{ name: 'deployments.list' }" class="kpi-item group">
<div class="kpi-icon-wrap" style="background:rgba(49,113,83,0.10)">
<BarChart3 :size="16" class="text-primary" />
</div>
<div>
<p class="kpi-num">{{ stats.deployments }}</p>
<p class="kpi-lbl">{{ $t('DashboardView.deployments') }}</p>
</div>
<ArrowRight :size="14" class="ml-auto text-gray-300 group-hover:text-primary group-hover:translate-x-0.5 transition-all" />
</RouterLink>
<div class="kpi-divider" />
<RouterLink to="/apps" class="kpi-item group">
<div class="kpi-icon-wrap" style="background:rgba(228,140,42,0.10)">
<Layers :size="16" class="text-accentYellow" />
</div>
<div>
<p class="kpi-num">{{ stats.apps }}</p>
<p class="kpi-lbl">{{ $t('DashboardView.apps') }}</p>
</div>
<ArrowRight :size="14" class="ml-auto text-gray-300 group-hover:text-primary group-hover:translate-x-0.5 transition-all" />
</RouterLink>
<!-- Courses-Tile: Studenten haben kein Courses-Recht (Route ist
staff-only). Tile via RoleGate verstecken statt 404 beim Klick. -->
<template v-if="isStaff">
<div class="kpi-divider" />
<RouterLink to="/courses" class="kpi-item group">
<div class="kpi-icon-wrap" style="background:rgba(59,130,246,0.08)">
<GraduationCap :size="16" class="text-blue-500" />
</div>
<div>
<p class="kpi-num">{{ stats.courses }}</p>
<p class="kpi-lbl">{{ $t('DashboardView.courses') }}</p>
</div>
<ArrowRight :size="14" class="ml-auto text-gray-300 group-hover:text-primary group-hover:translate-x-0.5 transition-all" />
</RouterLink>
</template>
</div>
<!-- Available resources — full width, two-column quotas list -->
<div class="bg-white rounded-2xl border border-gray-100 shadow-sm overflow-hidden">
<div class="flex items-center justify-between px-6 py-4 border-b border-gray-50">
<h2 class="text-sm font-semibold text-gray-900">{{ $t('DashboardView.availableResources') }}</h2>
<span v-if="quotasLoading && hasCachedQuotas" class="flex items-center gap-1.5 text-xs text-gray-400">
<Loader2 :size="12" class="animate-spin" />
</span>
</div>
<!-- Skeleton (initial load) -->
<div v-if="quotasLoading && !hasCachedQuotas" class="px-6 py-5 grid grid-cols-1 md:grid-cols-2 gap-x-8 gap-y-5">
<div v-for="i in 6" :key="i" class="animate-pulse space-y-2">
<div class="flex justify-between">
<div class="h-3 bg-gray-100 rounded w-20" />
<div class="h-3 bg-gray-100 rounded w-10" />
</div>
<div class="h-1.5 bg-gray-100 rounded-full" />
</div>
</div>
<!-- Quotas: two columns on >= md -->
<div v-else-if="formattedQuotas.length > 0" class="px-6 py-5 grid grid-cols-1 md:grid-cols-2 gap-x-8 gap-y-5">
<div v-for="quota in formattedQuotas" :key="quota.label">
<div class="flex items-center justify-between mb-1.5">
<div class="flex items-center gap-1.5">
<component :is="quota.icon" :size="13" class="text-gray-400" />
<span class="text-xs font-medium text-gray-700">{{ quota.label }}</span>
</div>
<span
class="text-xs font-semibold tabular-nums"
:class="quota.percentage >= 80 ? 'text-red-500' : quota.percentage >= 60 ? 'text-amber-500' : 'text-gray-600'"
>
{{ quota.used }}/{{ quota.limit }}{{ quota.unit }}
</span>
</div>
<div class="w-full bg-gray-100 rounded-full h-1.5 overflow-hidden">
<div
:class="getColorClass(quota.percentage)"
class="h-1.5 rounded-full transition-all duration-700"
:style="{ width: `${quota.percentage}%` }"
/>
</div>
<div class="flex items-center justify-between mt-1.5">
<p class="text-xs text-gray-400">{{ t('DashboardView.quotaUsed', { percentage: quota.percentage }) }}</p>
<AlertCircle v-if="quota.percentage >= 80" :size="11" class="text-red-400" />
</div>
</div>
</div>
<!-- No credentials -->
<div v-else-if="needsCredentials" class="px-6 py-12 text-center">
<div class="w-12 h-12 rounded-full bg-gray-100 flex items-center justify-center mx-auto mb-3">
<XCircle :size="22" class="text-gray-400" />
</div>
<p class="text-sm font-medium text-gray-700">{{ t('DashboardView.noCredentialsTitle') }}</p>
<p class="text-xs text-gray-400 mt-1 mb-4">{{ t('DashboardView.noCredentialsHint') }}</p>
<RouterLink
to="/user/openstack"
class="inline-flex items-center gap-1.5 px-3 py-1.5 bg-primary text-white text-xs font-semibold rounded-lg hover:bg-primaryDark transition-colors"
>
{{ t('DashboardView.setUpNow') }} <ArrowRight :size="12" />
</RouterLink>
</div>
<!-- Error / no data -->
<div v-else class="px-6 py-12 text-center">
<p class="text-sm text-gray-400">{{ t('DashboardView.quotaLoadError') }}</p>
</div>
</div>
</div>
</template>
<style scoped>
/* Hero */
.hero-banner {
background: linear-gradient(135deg, #317153 0%, #1e4a32 60%, #173325 100%);
border-radius: 20px;
padding: 28px 32px;
display: flex;
align-items: center;
justify-content: space-between;
position: relative;
overflow: hidden;
}
.hero-banner::before {
content: '';
position: absolute;
top: -40px;
right: -40px;
width: 200px;
height: 200px;
background: rgba(255,255,255,0.04);
border-radius: 50%;
}
.hero-banner::after {
content: '';
position: absolute;
bottom: -60px;
right: 80px;
width: 160px;
height: 160px;
background: rgba(255,255,255,0.03);
border-radius: 50%;
}
.hero-content {
position: relative;
z-index: 1;
}
.hero-cta {
position: relative;
z-index: 1;
display: inline-flex;
align-items: center;
gap: 8px;
padding: 10px 20px;
background: rgba(255,255,255,0.15);
backdrop-filter: blur(8px);
border: 1px solid rgba(255,255,255,0.25);
color: white;
font-size: 0.875rem;
font-weight: 600;
border-radius: 12px;
text-decoration: none;
transition: background 150ms, border-color 150ms;
white-space: nowrap;
}
.hero-cta:hover {
background: rgba(255,255,255,0.22);
border-color: rgba(255,255,255,0.35);
}
/* KPI row */
.kpi-row {
background: white;
border-radius: 16px;
border: 1px solid #f0f0f0;
box-shadow: 0 1px 3px rgba(0,0,0,0.04);
display: grid;
grid-template-columns: 1fr auto 1fr auto 1fr;
overflow: hidden;
}
.kpi-item {
display: flex;
align-items: center;
gap: 12px;
padding: 18px 24px;
text-decoration: none;
transition: background 150ms;
}
.kpi-item:hover {
background: #fafafa;
}
.kpi-divider {
width: 1px;
background: #f0f0f0;
margin: 12px 0;
}
.kpi-icon-wrap {
width: 36px;
height: 36px;
border-radius: 10px;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}
.kpi-num {
font-size: 1.75rem;
font-weight: 700;
color: #111827;
line-height: 1;
}
.kpi-lbl {
font-size: 0.7rem;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.06em;
color: #9ca3af;
margin-top: 3px;
}
</style>
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