<template>
  <div class="detail-page">
    <div v-if="loading" class="loading">Loading...</div>
    <div v-else-if="error" class="error-message">{{ error }}</div>

    <template v-else-if="employee">
      <div class="hero-card">
        <div class="hero-image" v-if="employee.Picture">
          <img :src="employee.Picture" :alt="fullName" />
        </div>
        <div class="hero-image placeholder" v-else>
          <span class="initials">{{ initials }}</span>
        </div>
        <div class="hero-content">
          <h1 class="hero-title">{{ fullName }}</h1>
          <div class="hero-meta">
            <span class="badge">SSO: {{ employee.SSO }}</span>
            <span v-if="employee.Team" class="badge badge-primary">{{ employee.Team }}</span>
          </div>
          <div class="hero-details">
            <p v-if="employee.Role"><strong>Role:</strong> {{ employee.Role }}</p>
          </div>
          <div class="hero-actions">
            <router-link to="/" class="btn">Back to Dashboard</router-link>
          </div>
        </div>
      </div>

      <!-- Recognitions -->
      <div class="section-card">
        <h2 class="section-title">
          Recognitions
          <span v-if="recognitions.length > 0" class="count-badge">{{ recognitions.length }}</span>
        </h2>
        <div v-if="recognitionsLoading" class="loading">Loading...</div>
        <div v-else-if="recognitions.length === 0" class="empty">
          No recognitions yet.
        </div>
        <div v-else class="recognitions-list">
          <div v-for="rec in displayedRecognitions" :key="rec.notificationid" class="recognition-card">
            <div class="recognition-header">
              <span class="badge" :style="{ backgroundColor: rec.typecolor || '#14abef' }">
                {{ rec.typename || 'Recognition' }}
              </span>
              <span class="recognition-date">{{ formatDate(rec.startdate) }}</span>
            </div>
            <div class="recognition-message">{{ rec.notification }}</div>
          </div>
          <button
            v-if="recognitions.length > recognitionsLimit && !showAllRecognitions"
            class="btn btn-secondary show-more-btn"
            @click="showAllRecognitions = true"
          >
            Show {{ recognitions.length - recognitionsLimit }} more
          </button>
          <button
            v-if="showAllRecognitions && recognitions.length > recognitionsLimit"
            class="btn btn-secondary show-more-btn"
            @click="showAllRecognitions = false"
          >
            Show less
          </button>
        </div>
      </div>

      <!-- Currently Checked Out USB Devices -->
      <div class="section-card">
        <h2 class="section-title">Checked Out USB Devices</h2>
        <div v-if="usbLoading" class="loading">Loading...</div>
        <div v-else-if="usbDevices.length === 0" class="empty">
          No USB devices currently checked out.
        </div>
        <div v-else class="table-container">
          <table>
            <thead>
              <tr>
                <th>Device</th>
                <th>Checked Out</th>
                <th>Actions</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="checkout in usbDevices" :key="checkout.log_id">
                <td>
                  <router-link :to="`/usb/${checkout.device_id}`">
                    {{ checkout.device_id }}
                  </router-link>
                </td>
                <td>{{ formatDate(checkout.timestamp) }}</td>
                <td class="actions">
                  <button class="btn btn-small btn-success" @click="checkinDevice(checkout)">
                    Check In
                  </button>
                </td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>

      <!-- USB Checkout History -->
      <div class="section-card">
        <h2 class="section-title">USB Checkout History</h2>
        <div v-if="historyLoading" class="loading">Loading...</div>
        <div v-else-if="checkoutHistory.length === 0" class="empty">
          No checkout history.
        </div>
        <div v-else class="table-container">
          <table>
            <thead>
              <tr>
                <th>Device</th>
                <th>Checked Out</th>
                <th>Device Status</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="record in checkoutHistory" :key="record.log_id">
                <td>
                  <router-link :to="`/usb/${record.device_id}`">
                    {{ record.device_id }}
                  </router-link>
                </td>
                <td>{{ formatDate(record.timestamp) }}</td>
                <td>{{ record.device_status || '-' }}</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
    </template>
  </div>
</template>

<script setup>
import { ref, computed, onMounted } from 'vue'
import { useRoute } from 'vue-router'
import { employeesApi, usbApi, notificationsApi } from '@/api'
import { useToast } from '../../composables/toast'
const toast = useToast()

const route = useRoute()

const employee = ref(null)
const recognitions = ref([])
const usbDevices = ref([])
const checkoutHistory = ref([])
const loading = ref(true)
const recognitionsLoading = ref(true)
const usbLoading = ref(true)
const historyLoading = ref(true)
const error = ref('')

const recognitionsLimit = 5
const showAllRecognitions = ref(false)

const displayedRecognitions = computed(() => {
  if (showAllRecognitions.value) {
    return recognitions.value
  }
  return recognitions.value.slice(0, recognitionsLimit)
})

const fullName = computed(() => {
  if (!employee.value) return ''
  return `${employee.value.First_Name?.trim() || ''} ${employee.value.Last_Name?.trim() || ''}`.trim()
})

const initials = computed(() => {
  if (!employee.value) return '?'
  const first = employee.value.First_Name?.trim()?.[0] || ''
  const last = employee.value.Last_Name?.trim()?.[0] || ''
  return (first + last).toUpperCase() || '?'
})

onMounted(async () => {
  await loadEmployee()
  await Promise.all([loadRecognitions(), loadUSBDevices(), loadCheckoutHistory()])
})

async function loadEmployee() {
  loading.value = true
  try {
    const response = await employeesApi.lookup(route.params.sso)
    employee.value = response.data.data
  } catch (err) {
    console.error('Error loading employee:', err)
    error.value = 'Employee not found'
  } finally {
    loading.value = false
  }
}

async function loadRecognitions() {
  recognitionsLoading.value = true
  try {
    const response = await notificationsApi.getEmployeeRecognitions(route.params.sso)
    recognitions.value = response.data.data?.recognitions || []
  } catch (err) {
    console.error('Error loading recognitions:', err)
    recognitions.value = []
  } finally {
    recognitionsLoading.value = false
  }
}

async function loadUSBDevices() {
  usbLoading.value = true
  try {
    // active check-out log rows for this badge
    const response = await usbApi.getUserCheckouts(route.params.sso)
    usbDevices.value = response.data.data || []
  } catch (err) {
    console.error('Error loading USB devices:', err)
  } finally {
    usbLoading.value = false
  }
}

async function loadCheckoutHistory() {
  historyLoading.value = true
  try {
    // all check-out log rows for this badge, newest first
    const response = await usbApi.getUserCheckouts(route.params.sso, false)
    checkoutHistory.value = response.data.data || []
  } catch (err) {
    console.error('Error loading checkout history:', err)
    checkoutHistory.value = []
  } finally {
    historyLoading.value = false
  }
}

async function checkinDevice(checkout) {
  if (!confirm(`Check in ${checkout.device_id}?`)) return

  try {
    await usbApi.checkin(checkout.device_id, { badge: checkout.badge_number || route.params.sso })
    await loadUSBDevices()
    await loadCheckoutHistory()
  } catch (err) {
    console.error('Error checking in device:', err)
    toast.error('Failed to check in device')
  }
}

function formatDate(dateStr) {
  if (!dateStr) return ''
  return new Date(dateStr).toLocaleString()
}
</script>

<style scoped>
.hero-image.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
}

.initials {
  font-size: 3rem;
  font-weight: 600;
}

.recognitions-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.recognition-card {
  padding: 1rem;
  background: var(--bg);
  border-radius: 8px;
  border-left: 4px solid var(--primary);
}

.recognition-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.recognition-date {
  color: var(--text-light);
  font-size: 0.875rem;
}

.recognition-message {
  white-space: pre-wrap;
  line-height: 1.5;
}

.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 0.5rem;
  margin-left: 0.5rem;
  background: var(--primary);
  color: white;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.show-more-btn {
  width: 100%;
  margin-top: 0.5rem;
}
</style>
