<template>
  <div>
    <!-- Header -->
    <div class="mb-6">
      <h1 class="text-h4 font-weight-bold mb-2">Events</h1>
      <p class="text-body-1 text-medium-emphasis">Discover and register for upcoming MonacoUSA events</p>
    </div>

    <!-- Filters -->
    <v-card class="mb-6" elevation="1">
      <v-card-text>
        <v-row align="center">
          <v-col cols="12" md="4">
            <v-text-field
              v-model="searchQuery"
              prepend-inner-icon="mdi-magnify"
              label="Search events"
              variant="outlined"
              density="compact"
              clearable
              hide-details
            />
          </v-col>
          <v-col cols="12" md="3">
            <v-select
              v-model="selectedCategory"
              :items="categories"
              label="Category"
              variant="outlined"
              density="compact"
              clearable
              hide-details
            />
          </v-col>
          <v-col cols="12" md="3">
            <v-select
              v-model="selectedMonth"
              :items="months"
              label="Month"
              variant="outlined"
              density="compact"
              clearable
              hide-details
            />
          </v-col>
          <v-col cols="12" md="2">
            <v-btn
              color="error"
              variant="flat"
              block
              @click="resetFilters"
            >
              Reset Filters
            </v-btn>
          </v-col>
        </v-row>
      </v-card-text>
    </v-card>

    <!-- Event Tabs -->
    <v-tabs
      v-model="tab"
      color="error"
      class="mb-6"
    >
      <v-tab value="upcoming">
        <v-icon start>mdi-calendar-clock</v-icon>
        Upcoming Events
      </v-tab>
      <v-tab value="registered">
        <v-icon start>mdi-calendar-check</v-icon>
        My Registrations
      </v-tab>
      <v-tab value="past">
        <v-icon start>mdi-history</v-icon>
        Past Events
      </v-tab>
    </v-tabs>

    <!-- Tab Content -->
    <v-window v-model="tab">
      <!-- Upcoming Events Tab -->
      <v-window-item value="upcoming">
        <v-row>
          <v-col
            v-for="event in upcomingEvents"
            :key="event.id"
            cols="12"
            md="6"
            lg="4"
          >
            <v-card elevation="2" hover class="h-100 d-flex flex-column">
              <!-- Event Image -->
              <v-img
                :src="event.image"
                height="200"
                cover
                gradient="to bottom, rgba(0,0,0,.1), rgba(0,0,0,.5)"
              >
                <v-card-title class="text-white">
                  {{ event.title }}
                </v-card-title>
              </v-img>

              <v-card-text class="flex-grow-1">
                <!-- Event Details -->
                <div class="mb-3">
                  <v-chip
                    :color="getCategoryColor(event.category)"
                    size="small"
                    variant="tonal"
                    class="mb-2"
                  >
                    {{ event.category }}
                  </v-chip>
                </div>

                <p class="text-body-2 mb-3">{{ event.description }}</p>

                <div class="text-caption text-medium-emphasis">
                  <div class="d-flex align-center mb-1">
                    <v-icon size="x-small" class="mr-2">mdi-calendar</v-icon>
                    {{ formatDate(event.date) }}
                  </div>
                  <div class="d-flex align-center mb-1">
                    <v-icon size="x-small" class="mr-2">mdi-clock-outline</v-icon>
                    {{ event.time }}
                  </div>
                  <div class="d-flex align-center mb-1">
                    <v-icon size="x-small" class="mr-2">mdi-map-marker</v-icon>
                    {{ event.location }}
                  </div>
                  <div class="d-flex align-center">
                    <v-icon size="x-small" class="mr-2">mdi-account-group</v-icon>
                    {{ event.attendees }} / {{ event.capacity }} attendees
                  </div>
                </div>
              </v-card-text>

              <v-card-actions>
                <v-spacer />
                <v-btn
                  variant="text"
                  color="error"
                  @click="viewEventDetails(event)"
                >
                  Learn More
                </v-btn>
                <v-btn
                  variant="flat"
                  color="error"
                  :disabled="event.attendees >= event.capacity"
                  @click="registerForEvent(event)"
                >
                  {{ event.attendees >= event.capacity ? 'Full' : 'Register' }}
                </v-btn>
              </v-card-actions>
            </v-card>
          </v-col>
        </v-row>

        <!-- Empty State -->
        <v-card v-if="upcomingEvents.length === 0" class="text-center pa-8" elevation="0">
          <v-icon size="64" color="grey-lighten-1">mdi-calendar-blank</v-icon>
          <h3 class="text-h6 mt-4">No upcoming events</h3>
          <p class="text-body-2 text-medium-emphasis">Check back later for new events</p>
        </v-card>
      </v-window-item>

      <!-- Registered Events Tab -->
      <v-window-item value="registered">
        <v-row>
          <v-col cols="12">
            <v-card elevation="1">
              <v-list lines="three">
                <v-list-item
                  v-for="registration in registeredEvents"
                  :key="registration.id"
                  class="py-3"
                >
                  <template v-slot:prepend>
                    <v-avatar size="60" rounded="lg">
                      <v-img :src="registration.image" cover />
                    </v-avatar>
                  </template>

                  <v-list-item-title class="font-weight-medium">
                    {{ registration.title }}
                  </v-list-item-title>
                  <v-list-item-subtitle>
                    <div class="d-flex gap-3 mt-1">
                      <span><v-icon size="x-small">mdi-calendar</v-icon> {{ formatDate(registration.date) }}</span>
                      <span><v-icon size="x-small">mdi-clock-outline</v-icon> {{ registration.time }}</span>
                      <span><v-icon size="x-small">mdi-map-marker</v-icon> {{ registration.location }}</span>
                    </div>
                  </v-list-item-subtitle>

                  <template v-slot:append>
                    <div class="text-right">
                      <v-chip
                        color="success"
                        size="small"
                        variant="tonal"
                        class="mb-2"
                      >
                        <v-icon start size="x-small">mdi-check</v-icon>
                        Registered
                      </v-chip>
                      <div>
                        <v-btn
                          variant="text"
                          size="small"
                          color="error"
                          @click="cancelRegistration(registration)"
                        >
                          Cancel
                        </v-btn>
                      </div>
                    </div>
                  </template>
                </v-list-item>
              </v-list>

              <!-- Empty State -->
              <div v-if="registeredEvents.length === 0" class="text-center pa-8">
                <v-icon size="64" color="grey-lighten-1">mdi-calendar-remove</v-icon>
                <h3 class="text-h6 mt-4">No registered events</h3>
                <p class="text-body-2 text-medium-emphasis">Browse upcoming events to find something interesting</p>
              </div>
            </v-card>
          </v-col>
        </v-row>
      </v-window-item>

      <!-- Past Events Tab -->
      <v-window-item value="past">
        <v-row>
          <v-col cols="12">
            <v-timeline side="end" density="compact">
              <v-timeline-item
                v-for="event in pastEvents"
                :key="event.id"
                dot-color="grey"
                size="small"
              >
                <template v-slot:opposite>
                  <div class="text-caption text-medium-emphasis">
                    {{ formatDate(event.date) }}
                  </div>
                </template>

                <v-card elevation="1">
                  <v-card-title class="text-h6">{{ event.title }}</v-card-title>
                  <v-card-text>
                    <p class="text-body-2 mb-2">{{ event.description }}</p>
                    <div class="text-caption text-medium-emphasis">
                      <v-icon size="x-small">mdi-account-group</v-icon>
                      {{ event.attendees }} attendees
                    </div>
                  </v-card-text>
                  <v-card-actions>
                    <v-btn
                      variant="text"
                      size="small"
                      color="error"
                      @click="viewEventPhotos(event)"
                    >
                      View Photos
                    </v-btn>
                    <v-btn
                      variant="text"
                      size="small"
                      @click="viewEventDetails(event)"
                    >
                      View Details
                    </v-btn>
                  </v-card-actions>
                </v-card>
              </v-timeline-item>
            </v-timeline>

            <!-- Empty State -->
            <v-card v-if="pastEvents.length === 0" class="text-center pa-8" elevation="0">
              <v-icon size="64" color="grey-lighten-1">mdi-history</v-icon>
              <h3 class="text-h6 mt-4">No past events</h3>
              <p class="text-body-2 text-medium-emphasis">Past events will appear here</p>
            </v-card>
          </v-col>
        </v-row>
      </v-window-item>
    </v-window>

    <!-- Event Details Dialog -->
    <v-dialog v-model="detailsDialog" max-width="600">
      <v-card v-if="selectedEvent">
        <v-img
          :src="selectedEvent.image"
          height="200"
          cover
        />
        <v-card-title>{{ selectedEvent.title }}</v-card-title>
        <v-card-text>
          <v-chip
            :color="getCategoryColor(selectedEvent.category)"
            size="small"
            variant="tonal"
            class="mb-3"
          >
            {{ selectedEvent.category }}
          </v-chip>
          
          <p class="mb-4">{{ selectedEvent.fullDescription || selectedEvent.description }}</p>
          
          <v-list density="compact">
            <v-list-item>
              <template v-slot:prepend>
                <v-icon>mdi-calendar</v-icon>
              </template>
              <v-list-item-title>{{ formatDate(selectedEvent.date) }}</v-list-item-title>
            </v-list-item>
            <v-list-item>
              <template v-slot:prepend>
                <v-icon>mdi-clock-outline</v-icon>
              </template>
              <v-list-item-title>{{ selectedEvent.time }}</v-list-item-title>
            </v-list-item>
            <v-list-item>
              <template v-slot:prepend>
                <v-icon>mdi-map-marker</v-icon>
              </template>
              <v-list-item-title>{{ selectedEvent.location }}</v-list-item-title>
            </v-list-item>
            <v-list-item>
              <template v-slot:prepend>
                <v-icon>mdi-account-group</v-icon>
              </template>
              <v-list-item-title>{{ selectedEvent.attendees }} / {{ selectedEvent.capacity }} attendees</v-list-item-title>
            </v-list-item>
          </v-list>
        </v-card-text>
        <v-card-actions>
          <v-spacer />
          <v-btn variant="text" @click="detailsDialog = false">Close</v-btn>
          <v-btn
            color="error"
            variant="flat"
            :disabled="selectedEvent.attendees >= selectedEvent.capacity"
            @click="registerForEvent(selectedEvent)"
          >
            Register
          </v-btn>
        </v-card-actions>
      </v-card>
    </v-dialog>
  </div>
</template>

<script setup lang="ts">
definePageMeta({
  layout: 'member',
  middleware: 'member'
});

// State
const tab = ref('upcoming');
const searchQuery = ref('');
const selectedCategory = ref(null);
const selectedMonth = ref(null);
const detailsDialog = ref(false);
const selectedEvent = ref(null);

// Filter options
const categories = ref([
  'Networking',
  'Workshop',
  'Social',
  'Cultural',
  'Business',
  'Charity'
]);

const months = ref([
  'January',
  'February',
  'March',
  'April',
  'May',
  'June',
  'July',
  'August',
  'September',
  'October',
  'November',
  'December'
]);

// Mock event data
const upcomingEvents = ref([
  {
    id: 1,
    title: 'Monaco Business Networking',
    description: 'Connect with fellow Monaco entrepreneurs and business leaders',
    fullDescription: 'Join us for an evening of networking with Monaco\'s business community. This event brings together entrepreneurs, executives, and professionals from various industries.',
    category: 'Networking',
    date: '2024-02-15',
    time: '6:00 PM - 8:00 PM',
    location: 'Monaco Yacht Club',
    image: 'https://picsum.photos/400/300?random=1',
    attendees: 45,
    capacity: 100
  },
  {
    id: 2,
    title: 'Digital Marketing Workshop',
    description: 'Learn the latest digital marketing strategies and techniques',
    category: 'Workshop',
    date: '2024-02-22',
    time: '2:00 PM - 5:00 PM',
    location: 'Conference Center',
    image: 'https://picsum.photos/400/300?random=2',
    attendees: 28,
    capacity: 50
  },
  {
    id: 3,
    title: 'Annual Gala Dinner',
    description: 'Celebrate the year with an elegant evening of dining and entertainment',
    category: 'Social',
    date: '2024-03-05',
    time: '7:00 PM - 11:00 PM',
    location: 'Hotel Hermitage',
    image: 'https://picsum.photos/400/300?random=3',
    attendees: 120,
    capacity: 150
  },
  {
    id: 4,
    title: 'Monaco Grand Prix Viewing',
    description: 'Watch the Monaco Grand Prix from our exclusive viewing area',
    category: 'Social',
    date: '2024-05-26',
    time: '12:00 PM - 6:00 PM',
    location: 'Private Terrace',
    image: 'https://picsum.photos/400/300?random=4',
    attendees: 75,
    capacity: 75
  }
]);

const registeredEvents = ref([
  {
    id: 1,
    title: 'Monaco Business Networking',
    date: '2024-02-15',
    time: '6:00 PM',
    location: 'Monaco Yacht Club',
    image: 'https://picsum.photos/400/300?random=1'
  },
  {
    id: 3,
    title: 'Annual Gala Dinner',
    date: '2024-03-05',
    time: '7:00 PM',
    location: 'Hotel Hermitage',
    image: 'https://picsum.photos/400/300?random=3'
  }
]);

const pastEvents = ref([
  {
    id: 5,
    title: 'New Year Celebration',
    description: 'Welcomed 2024 with a spectacular celebration',
    date: '2024-01-01',
    attendees: 200
  },
  {
    id: 6,
    title: 'Investment Seminar',
    description: 'Expert insights on investment strategies for 2024',
    date: '2024-01-15',
    attendees: 65
  }
]);

// Methods
const formatDate = (dateString: string) => {
  return new Date(dateString).toLocaleDateString('en-US', {
    weekday: 'long',
    year: 'numeric',
    month: 'long',
    day: 'numeric'
  });
};

const getCategoryColor = (category: string) => {
  const colors: Record<string, string> = {
    'Networking': 'blue',
    'Workshop': 'purple',
    'Social': 'green',
    'Cultural': 'orange',
    'Business': 'indigo',
    'Charity': 'pink'
  };
  return colors[category] || 'grey';
};

const resetFilters = () => {
  searchQuery.value = '';
  selectedCategory.value = null;
  selectedMonth.value = null;
};

const viewEventDetails = (event: any) => {
  selectedEvent.value = event;
  detailsDialog.value = true;
};

const registerForEvent = (event: any) => {
  console.log('Registering for event:', event.title);
  // Add to registered events
  if (!registeredEvents.value.find(e => e.id === event.id)) {
    registeredEvents.value.push({
      id: event.id,
      title: event.title,
      date: event.date,
      time: event.time,
      location: event.location,
      image: event.image
    });
  }
  detailsDialog.value = false;
};

const cancelRegistration = (event: any) => {
  console.log('Canceling registration for:', event.title);
  const index = registeredEvents.value.findIndex(e => e.id === event.id);
  if (index > -1) {
    registeredEvents.value.splice(index, 1);
  }
};

const viewEventPhotos = (event: any) => {
  console.log('Viewing photos for:', event.title);
};
</script>

<style scoped>
.gap-3 {
  gap: 0.75rem;
}
</style>