<template>
  <div class="min-h-screen bg-gray-50 py-10 px-6">
    <div class="max-w-5xl mx-auto bg-white rounded-2xl shadow-lg p-8">
      <h1 class="text-2xl font-bold text-center text-gray-800">
        Form Undangan Khitan Basic
      </h1>
      <p class="text-center text-gray-500 text-sm mb-8">
        Isi semua data dengan lengkap dan benar.
      </p>

      <!-- Data Pemesan -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Data Pemesan</h2>
        <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
          <!-- Nama Pemesan -->
          <div class="relative">
            <input v-model="form.nama_pemesan" type="text" placeholder=" " required
              class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
            <label class="absolute left-1 top-0 text-gray-400 text-xs transition-all
               peer-placeholder-shown:top-4 peer-placeholder-shown:left-2 peer-placeholder-shown:text-gray-400 peer-placeholder-shown:text-sm
               peer-focus:top-0 peer-focus:left-1 peer-focus:text-[10px] peer-focus:text-blue-500
               peer-valid:top-0 peer-valid:left-1 peer-valid:text-[10px] peer-valid:text-gray-500">
              Nama Pemesan
            </label>
          </div>

          <!-- Email -->
          <div class="relative">
            <input v-model="form.email" type="email" placeholder=" " required
              class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
            <label class="absolute left-1 top-0 text-gray-400 text-xs transition-all
               peer-placeholder-shown:top-4 peer-placeholder-shown:left-2 peer-placeholder-shown:text-gray-400 peer-placeholder-shown:text-sm
               peer-focus:top-0 peer-focus:left-1 peer-focus:text-[10px] peer-focus:text-blue-500
               peer-valid:top-0 peer-valid:left-1 peer-valid:text-[10px] peer-valid:text-gray-500">
              Email
            </label>
          </div>

          <!-- No Telepon -->
          <div class="relative">
            <input v-model="form.no_tlpn" type="text" placeholder=" " required
              class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
            <label class="absolute left-1 top-0 text-gray-400 text-xs transition-all
               peer-placeholder-shown:top-4 peer-placeholder-shown:left-2 peer-placeholder-shown:text-gray-400 peer-placeholder-shown:text-sm
               peer-focus:top-0 peer-focus:left-1 peer-focus:text-[10px] peer-focus:text-blue-500
               peer-valid:top-0 peer-valid:left-1 peer-valid:text-[10px] peer-valid:text-gray-500">
              No Telepon
            </label>
          </div>
        </div>
      </section>

      <!-- Data Anak -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Data Anak yang Dikhitan</h2>
        <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
          <template v-for="(field, i) in [
            { model: 'nama_lengkap', label: 'Nama Lengkap' },
            { model: 'nama_panggilan', label: 'Nama Panggilan' },
            { model: 'nama_bapak', label: 'Nama Bapak' },
            { model: 'nama_ibu', label: 'Nama Ibu' }
          ]" :key="i">
            <div class="relative">
              <input v-model="form.form[field.model]" placeholder=" " required  class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm
                 focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
              <label class="absolute left-2 text-gray-400 transition-all
                 peer-placeholder-shown:top-4 peer-placeholder-shown:text-sm
                 peer-focus:top-0 peer-focus:text-[10px] peer-focus:text-blue-500
                 peer-valid:top-0 peer-valid:text-[10px] peer-valid:text-gray-500">
                {{ field.label }}
              </label>
            </div>
          </template>
        </div>
      </section>

      <!-- Detail Acara -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Detail Acara</h2>

        <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-6">
          <!-- Hari & Tanggal -->
          <div class="flex flex-col">
            <label class="text-gray-600 text-sm font-medium mb-1">Hari & Tanggal Acara</label>
            <input v-model="form.form.hari_tanggal_acara" type="date" required class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm
               focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
          </div>

          <!-- Waktu -->
          <div class="flex flex-col">
            <label class="text-gray-600 text-sm font-medium mb-1">Waktu Acara</label>
            <input v-model="form.form.waktu" type="time" required class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm
               focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
          </div>
        </div>

        <!-- Alamat -->
        <div class="mt-6 relative">
          <textarea v-model="form.form.alamat" rows="3" placeholder=" " required  class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-5 pb-1.5 text-sm resize-none
                   focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition"></textarea>
          <label class="absolute left-2 text-gray-400 transition-all
                 peer-placeholder-shown:top-4 peer-placeholder-shown:text-sm
                 peer-focus:top-0 peer-focus:text-[10px] peer-focus:text-blue-500
                 peer-valid:top-0 peer-valid:text-[10px] peer-valid:text-gray-500">
            Alamat Acara
          </label>
        </div>

        <!-- Link Google Maps -->
        <div class="mt-4 relative">
          <input v-model="form.form.link_gmaps" type="url" placeholder=" " required class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm
               focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
          <label class="absolute left-1 top-0 text-gray-400 text-xs transition-all
               peer-placeholder-shown:top-4 peer-placeholder-shown:left-2 peer-placeholder-shown:text-gray-400 peer-placeholder-shown:text-sm
               peer-focus:top-0 peer-focus:left-1 peer-focus:text-[10px] peer-focus:text-blue-500
               peer-valid:top-0 peer-valid:left-1 peer-valid:text-[10px] peer-valid:text-gray-500">
            Link Google Maps
          </label>
        </div>
      </section>

      <!-- Hitung Mundur -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Hitung Mundur</h2>
        <div class="relative">
          <input v-model="form.form.hitung_mundur" type="datetime-local" placeholder=" "   class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm 
             focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
          <label class="absolute left-2 text-gray-400 transition-all
             peer-placeholder-shown:top-4 peer-placeholder-shown:text-sm
             peer-focus:top-0 peer-focus:text-[10px] peer-focus:text-blue-500
             peer-valid:top-0 peer-valid:text-[10px] peer-valid:text-gray-500">
            Waktu Hitung Mundur
          </label>
        </div>
      </section>

      <!-- Rekening -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Rekening</h2>
        <div class="relative">
          <input v-model="form.form.rekening_1" type="text" placeholder=" " required  class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm
             focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
          <label class="absolute left-2 text-gray-400 transition-all duration-200
             peer-placeholder-shown:top-3.5 peer-placeholder-shown:text-sm
             peer-focus:top-[-2px] peer-focus:text-[10px] peer-focus:text-blue-500
             peer-valid:top-[-2px] peer-valid:text-[10px] peer-valid:text-gray-500">
            Rekening 1
          </label>
        </div>
      </section>

      <!-- Musik -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Musik</h2>
        <div class="relative">
          <input v-model="form.form.link_music" type="text" placeholder=" " required class="peer w-full border border-gray-300 rounded-lg px-2.5 pt-4 pb-1.5 text-sm
             focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition" />
          <label class="absolute left-2 text-gray-400 transition-all duration-200
             peer-placeholder-shown:top-3.5 peer-placeholder-shown:text-sm
             peer-focus:top-[-2px] peer-focus:text-[10px] peer-focus:text-blue-500
             peer-valid:top-[-2px] peer-valid:text-[10px] peer-valid:text-gray-500">
            Link Musik (opsional)
          </label>
        </div>
      </section>

      <!-- Say Something -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Say Something</h2>
        <textarea v-model="form.form.say_something" rows="4" placeholder="Kata-kata atau ucapan terima kasih..."
          class="w-full border border-gray-300 rounded-lg px-3 py-2 focus:ring-2 focus:ring-blue-400 focus:border-blue-400 outline-none transition resize-none"></textarea>
      </section>

      <!-- Galeri Foto -->
      <section class="mb-8">
        <h2 class="font-semibold text-blue-600 mb-3 border-b pb-1">Galeri Foto</h2>
        <div class="border-2 border-dashed border-gray-300 rounded-xl p-8 flex flex-col justify-center items-center 
                 text-gray-400 hover:border-blue-400 hover:text-blue-500 transition">
          <input id="gallery" type="file" multiple accept="image/*" class="hidden" @change="handleFileChange" />
          <label v-if="!previews.length" for="gallery" class="cursor-pointer flex flex-col items-center">
            <span class="text-4xl font-bold">+</span>
            <span class="text-sm mt-2">Pilih Foto (maks. 4, JPEG/PNG, maks. 2MB)</span>
          </label>
          <div v-else class="grid grid-cols-2 sm:grid-cols-4 gap-4">
            <div v-for="(src, i) in previews" :key="i" class="relative group">
              <img :src="src" class="w-24 h-24 object-cover rounded-lg border shadow" />
              <button @click="removeFile(i)" class="absolute -top-2 -right-2 bg-red-500 text-white rounded-full w-5 h-5 
                       flex items-center justify-center text-xs opacity-0 group-hover:opacity-100 transition"
                title="Hapus foto">
                ✕
              </button>
            </div>
            <label v-if="previews.length < 4" for="gallery" class="cursor-pointer flex flex-col items-center justify-center w-24 h-24 
                     border-2 border-dashed border-gray-300 rounded-lg text-gray-400 
                     hover:border-blue-400 hover:text-blue-500 transition">
              <span class="text-3xl font-bold">+</span>
            </label>
          </div>
        </div>
      </section>

      <!-- Tombol -->
      <div class="text-end mt-6">
        <button @click="batal" class="bg-gray-600 text-white font-semibold px-6 py-2 rounded-lg transition mr-2">
          Batal
        </button>
        <button @click="konfirmasi" class="bg-blue-700 text-white font-semibold px-6 py-2 rounded-lg transition">
          Konfirmasi
        </button>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import { useRouter } from 'vue-router'
import Swal from 'sweetalert2'

const router = useRouter()

const form = ref({
  nama_pemesan: '',
  email: '',
  no_tlpn: '',
  form: {
    nama_lengkap: '',
    nama_panggilan: '',
    nama_bapak: '',
    nama_ibu: '',
    hari_tanggal_acara: '',
    waktu: '',
    alamat: '',
    link_gmaps: '',
    say_something: '',
    hitung_mundur: '',
    rekening_1: '',
    link_music: ''
  },
  foto: []
})

const previews = ref([])

const handleFileChange = (e) => {
  const files = Array.from(e.target.files)
  const total = form.value.foto.length + files.length
  if (total > 4) {
    Swal.fire('Maksimal 4 foto!', '', 'warning')
    e.target.value = ''
    return
  }

  files.forEach(file => {
    if (file.size > 2 * 1024 * 1024) {
      Swal.fire(`${file.name} terlalu besar! Maks 2MB.`, '', 'error')
      return
    }
    if (!['image/jpeg', 'image/png', 'image/jpg'].includes(file.type)) {
      Swal.fire(`${file.name} harus JPEG/PNG.`, '', 'error')
      return
    }
    form.value.foto.push(file)
    previews.value.push(URL.createObjectURL(file))
  })
  e.target.value = ''
}

const removeFile = (index) => {
  form.value.foto.splice(index, 1)
  previews.value.splice(index, 1)
}

const konfirmasi = async () => {
  if (!form.value.nama_pemesan || !form.value.email) {
    Swal.fire('Harap isi Nama Pemesan dan Email!', '', 'warning')
    return
  }

  try {
    const data = new FormData()
    data.append('nama_pemesan', form.value.nama_pemesan)
    data.append('email', form.value.email)
    data.append('no_tlpn', form.value.no_tlpn)
    data.append('template_slug', 'undangan-khitan-basic')

    for (const [key, value] of Object.entries(form.value.form)) {
      data.append(`form[${key}]`, value)
    }

    form.value.foto.forEach((file, index) => {
      data.append(`foto[${index}]`, file)
    })

    const res = await fetch('http://localhost:8000/api/pelanggans', {
      method: 'POST',
      body: data
    })

    const result = await res.json()

    if (!res.ok) {
      if (res.status === 422) {
        throw new Error(Object.values(result.errors || {}).flat().join('\n'))
      }
      throw new Error(result.message || 'Gagal mengirim data')
    }

    await Swal.fire({
      title: 'Berhasil!',
      text: result.message || 'Data undangan berhasil disimpan.',
      icon: 'success',
      confirmButtonText: 'Lanjut ke WhatsApp',
      confirmButtonColor: '#2563eb',
      background: '#f9fafb',
      color: '#111827',
    })

    // Kirim ke WhatsApp Admin
    const adminNumber = '62895333053398'
    const pesan = `
Halo Admin 
Ada pesanan baru untuk *Undangan Khitan Basic* 

*Data Pemesan*
- Nama: ${form.value.nama_pemesan}
- Email: ${form.value.email}
- No. Telepon: ${form.value.no_tlpn}

*Data Anak*
- Nama Lengkap: ${form.value.form.nama_lengkap || '-'}
- Nama Panggilan: ${form.value.form.nama_panggilan || '-'}
- Bapak: ${form.value.form.nama_bapak || '-'}
- Ibu: ${form.value.form.nama_ibu || '-'}

*Detail Acara*
- Tanggal: ${form.value.form.hari_tanggal_acara || '-'}
- Waktu: ${form.value.form.waktu || '-'}
- Alamat: ${form.value.form.alamat || '-'}
- Gmaps: ${form.value.form.link_gmaps || '-'}

*Hitung Mundur*: ${form.value.form.hitung_mundur || '-'}

*Say Something*: 
${form.value.form.say_something || '-'}

*Rekening 1*: ${form.value.form.rekening_1 || '-'}

*Musik*: ${form.value.form.link_music || '-'}

Terima kasih 
`

    const waUrl = `https://wa.me/${adminNumber}?text=${encodeURIComponent(pesan)}`
    window.open(waUrl, '_blank')

    router.push('/')
  } catch (err) {
    console.error(err)
    Swal.fire('Gagal!', err.message || 'Terjadi kesalahan saat menyimpan.', 'error')
  }
}

const batal = () => {
  Swal.fire({
    title: 'Batalkan?',
    text: 'Perubahan yang belum disimpan akan hilang.',
    icon: 'warning',
    showCancelButton: true,
    confirmButtonColor: '#d33',
    cancelButtonColor: '#6b7280',
    confirmButtonText: 'Ya, Batalkan'
  }).then(result => {
    if (result.isConfirmed) router.back()
  })
}
</script>