<script lang="ts" setup>
import { computed, onMounted, ref } from 'vue'
import Swal from 'sweetalert2'
import { Badge } from '@/components/ui/badge'
import { Box } from '@/components/ui/box'
import { TabsRoot, TabsList, TabsTrigger, TabsContent } from '@/components/ui/tabs'
import { AvatarRoot, AvatarFallback, AvatarImage } from '@/components/ui/avatar'
import { Lucide } from '@/components/ui/lucide'
import { getApiErrorMessage } from '@/core/utils/getApiErrorMessage'
import { listEmployments } from '@/modules/profile/services/employment.service'
import { uploadProfileImage } from '@/modules/profile/services/profile.service'
import type { Employment } from '@/modules/profile/types/employment.types'
import { useAuthStore } from '@/stores/auth'
import MemberDigitalCard from '../components/MemberDigitalCard.vue'
import ProfileTab from './ProfileTab.vue'
import EmploymentTab from './EmploymentTab.vue'
import BankDetailTab from './BankDetailTab.vue'
import ChangePasswordTab from './ChangePasswordTab.vue'

const authStore = useAuthStore()

const uploadingImage = ref(false)
const imageInputRef = ref<HTMLInputElement | null>(null)
const imagePreviewUrl = ref<string | null>(null)
const employments = ref<Employment[]>([])

const companyName = computed(() => {
  const currentEmployment = employments.value.find((employment) => employment.is_current)
  return currentEmployment?.company_name ?? employments.value[0]?.company_name ?? null
})

const profileUrl = computed(() => {
  const token = authStore.user?.public_profile_token
  if (!token) return null

  const baseUrl = (typeof window !== 'undefined'
    ? window.location.origin
    : import.meta.env.VITE_APP_URL || ''
  ).replace(/\/$/, '')

  return `${baseUrl}/v/${token}`
})

const displayValue = (value: string | number | null | undefined) => {
  if (value === null || value === undefined || value === '') return '-'
  return String(value).trim() || '-'
}

const STATUS_LABELS: Record<string, string> = {
  active: 'Aktif',
  pending: 'Menunggu',
  inactive: 'Tidak Aktif',
}

const statusLabel = computed(() => {
  const status = authStore.userStatus
  if (!status) return '-'
  return STATUS_LABELS[status] ?? status.charAt(0).toUpperCase() + status.slice(1)
})

const statusBadgeVariant = computed(() => {
  if (authStore.isAccountActive) return 'success' as const
  if (authStore.isAccountPending) return 'pending' as const
  return 'secondary' as const
})

function formatDateLabel(value: string | null | undefined): string {
  if (!value) return '-'
  const date = new Date(value)
  if (Number.isNaN(date.getTime())) return value
  return new Intl.DateTimeFormat('ms-MY', {
    day: 'numeric',
    month: 'short',
    year: 'numeric',
  }).format(date)
}

const avatarSrc = computed(
  () => imagePreviewUrl.value ?? authStore.userImageUrl ?? undefined,
)

function clearImagePreview() {
  if (imagePreviewUrl.value) {
    URL.revokeObjectURL(imagePreviewUrl.value)
    imagePreviewUrl.value = null
  }
  if (imageInputRef.value) {
    imageInputRef.value.value = ''
  }
}

function openImagePicker() {
  if (uploadingImage.value) return
  imageInputRef.value?.click()
}

async function onImageSelected(event: Event) {
  const input = event.target as HTMLInputElement
  const file = input.files?.[0]
  if (!file) return

  clearImagePreview()
  imagePreviewUrl.value = URL.createObjectURL(file)
  uploadingImage.value = true

  try {
    const res = await uploadProfileImage(file)

    if (!res.success) {
      throw new Error(res.message ?? 'Gagal mengemas kini gambar profil.')
    }

    authStore.setUserProfile(res.data)
    clearImagePreview()

    await Swal.fire({
      toast: true,
      position: 'top-end',
      icon: 'success',
      title: 'Gambar profil berjaya dikemas kini.',
      showConfirmButton: false,
      timer: 3000,
    })
  } catch (error) {
    clearImagePreview()
    await Swal.fire({
      icon: 'error',
      title: 'Ralat',
      text: getApiErrorMessage(error, 'Gagal mengemas kini gambar profil.'),
    })
  } finally {
    uploadingImage.value = false
  }
}

async function fetchEmployments() {
  try {
    const res = await listEmployments()
    employments.value = res.data
  } catch {
    employments.value = []
  }
}

onMounted(async () => {
  if (!authStore.user) {
    await authStore.fetchSession()
  }

  await fetchEmployments()
})
</script>

<template>
  <div>
    <div class="flex items-center">
      <h2 class="mr-auto text-lg font-medium">Profil</h2>
    </div>
    <TabsRoot defaultValue="1">
      <!-- BEGIN: Profile Info -->
      <Box raised="single" class="mt-5 p-0">
        <div class="flex flex-col border-b border-foreground/15 lg:flex-row">
          <!-- Identity -->
          <div class="flex flex-1 items-center justify-center p-5 lg:justify-start">
            <div class="relative shrink-0" :class="{ 'opacity-60': uploadingImage }">
              <AvatarRoot class="size-20 border-5 bg-background rounded-full sm:size-24 lg:size-32">
                <AvatarFallback>{{ authStore.userName }}</AvatarFallback>
                <AvatarImage v-if="avatarSrc" :src="avatarSrc" :alt="authStore.userName" />
              </AvatarRoot>
              <button type="button"
                class="bg-(--color)/70 border-3 border-background absolute bottom-0 right-0 mb-1 mr-1 flex cursor-pointer items-center justify-center rounded-full p-2 text-white [--color:var(--color-primary)] disabled:cursor-not-allowed disabled:opacity-60"
                :disabled="uploadingImage" aria-label="Tukar gambar profil" @click="openImagePicker">
                <Lucide class="size-4" :icon="uploadingImage ? 'LoaderCircle' : 'Camera'"
                  :class="{ 'animate-spin': uploadingImage }" />
              </button>
              <input ref="imageInputRef" type="file" accept="image/jpeg,image/png,image/jpg,image/gif" class="hidden"
                @change="onImageSelected" />
            </div>
            <div class="ml-5 min-w-0">
              <div class="truncate text-lg font-medium sm:whitespace-normal">
                {{ authStore.userName || '-' }}
              </div>
              <div v-if="authStore.userMemberType"
                class="mt-1 truncate text-sm capitalize opacity-70 sm:whitespace-normal">
                {{ authStore.userMemberType }}
              </div>
              <div class="mt-3 flex flex-wrap items-center gap-2">
                <Badge :variant="statusBadgeVariant">{{ statusLabel }}</Badge>
                <Badge v-if="authStore.userMemberNumber" look="outline" variant="secondary">
                  No. {{ authStore.userMemberNumber }}
                </Badge>
              </div>
              <p class="mt-2 text-xs opacity-70">
                Gambar profil: maksimum 2 MB (JPEG, PNG, GIF).
              </p>
            </div>
          </div>

          <!-- Contact & membership -->
          <div class="flex-1 border-t border-foreground/15 p-5 lg:border-t-0 lg:border-l">
            <div class="text-center font-medium lg:text-left">Maklumat Hubungan</div>
            <div class="mt-4 flex flex-col items-center lg:items-start">
              <div class="flex items-center truncate sm:whitespace-normal">
                <Lucide class="mr-2 size-4 shrink-0" icon="Mail" />
                {{ displayValue(authStore.user?.email) }}
              </div>
              <div class="mt-3 flex items-center truncate sm:whitespace-normal">
                <Lucide class="mr-2 size-4 shrink-0" icon="Phone" />
                {{ displayValue(authStore.user?.phone_number) }}
              </div>
              <div class="mt-3 flex items-center truncate sm:whitespace-normal">
                <Lucide class="mr-2 size-4 shrink-0" icon="IdCard" />
                {{ displayValue(authStore.user?.ic_number) }}
              </div>
            </div>

            <div class="mt-6 grid grid-cols-2 gap-4 sm:grid-cols-3">
              <div class="text-center lg:text-left">
                <div class="truncate text-base font-medium">
                  {{ displayValue(authStore.userPosition) }}
                </div>
                <div class="text-xs opacity-70">Jawatan</div>
              </div>
              <div class="text-center lg:text-left">
                <div class="truncate text-base font-medium">
                  {{ displayValue(companyName) }}
                </div>
                <div class="text-xs opacity-70">Unit</div>
              </div>
              <div class="col-span-2 text-center sm:col-span-1 lg:text-left">
                <div class="truncate text-base font-medium">
                  {{ formatDateLabel(authStore.userJoinDate) }}
                </div>
                <div class="text-xs opacity-70">Tarikh Sertai</div>
              </div>
            </div>
          </div>

          <!-- Digital card -->
          <div
            class="flex shrink-0 items-center justify-center border-t border-foreground/15 p-5 lg:border-t-0 lg:border-l">
            <MemberDigitalCard large :member-number="authStore.userMemberNumber" :member-name="authStore.userName"
              :member-type="authStore.userMemberType" :company-name="companyName" :profile-url="profileUrl"
              :image-url="avatarSrc" />
          </div>
        </div>
        <!-- Tabs title -->
        <div class="px-5 py-4">
          <TabsList class="mb-0 flex w-full">
            <TabsTrigger
              class="inline-flex min-w-0 flex-1 items-center justify-center whitespace-nowrap px-2 sm:px-3 md:text-sm"
              value="1" aria-label="Profil">
              <Lucide class="size-4 shrink-0 md:mr-2" icon="User" />
              <span class="hidden md:inline">Profil</span>
            </TabsTrigger>
            <TabsTrigger
              class="inline-flex min-w-0 flex-1 items-center justify-center whitespace-nowrap px-2 sm:px-3 md:text-sm"
              value="5" aria-label="Pekerjaan">
              <Lucide class="size-4 shrink-0 md:mr-2" icon="Briefcase" />
              <span class="hidden md:inline">Pekerjaan</span>
            </TabsTrigger>
            <TabsTrigger
              class="inline-flex min-w-0 flex-1 items-center justify-center whitespace-nowrap px-2 sm:px-3 md:text-sm"
              value="3" aria-label="Bank">
              <Lucide class="size-4 shrink-0 md:mr-2" icon="Banknote" />
              <span class="hidden md:inline">Bank</span>
            </TabsTrigger>
            <TabsTrigger
              class="inline-flex min-w-0 flex-1 items-center justify-center whitespace-nowrap px-2 sm:px-3 md:text-sm"
              value="2" aria-label="Kata Laluan">
              <Lucide class="size-4 shrink-0 md:mr-2" icon="Lock" />
              <span class="hidden md:inline">Kata Laluan</span>
            </TabsTrigger>
          </TabsList>
        </div>
      </Box>
      <!-- Profile Info -->
      <TabsContent value="1" class="mt-8">
        <ProfileTab embedded />
      </TabsContent>
      <!-- Pekerjaan -->
      <TabsContent value="5" class="mt-8">
        <EmploymentTab embedded />
      </TabsContent>
      <!-- Bank -->
      <TabsContent value="3" class="mt-8">
        <BankDetailTab embedded />
      </TabsContent>
      <!-- Password Change -->
      <TabsContent value="2" class="mt-8">
        <ChangePasswordTab embedded />
      </TabsContent>
    </TabsRoot>
  </div>
</template>
