<template>
  <div v-if="productData" class="grid px-3">
    <div class="cell is-col-span-12">
      <div id="schedule-content">
        <div v-if="selectedPolicy" id="print-area" :class="{ 'is-loading': isLoading }">
          <!-- Header -->
          <div class="is-flex is-justify-content-space-between is-align-items-center">
            <h3 class="title is-4 has-text-primary mb-1">
              {{ selectedPolicy.name }}
            </h3>
            <div>
              <span class="button is-white">
                <span class="has-text-weight-semibold">Đơn vị: VNĐ</span>
              </span>
              <button class="button is-light" @click="$emit('print')" id="ignore-print">
                <span class="is-size-6">In</span>
              </button>
            </div>
          </div>
          <hr class="my-4" style="background-color: var(--bulma-background)"></hr>

          <!-- Summary Information -->
          <div class="fixed-grid has-4-cols-mobile has-7-cols-desktop">
            <div class="grid">
              <div class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Sản phẩm</p>
                <p class="has-text-primary has-text-weight-medium">{{ productData.trade_code || productData.code }} <a
                    class="ml-4" id="ignore" @click="$copyToClipboard(productData.trade_code)">
                    <SvgIcon name="copy.svg" type="primary" :size="18" />
                  </a>
                </p>

              </div>
              <div class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Giá niêm yết</p>
                <p class="has-text-primary">{{ $numtoString(calculatorData.originPrice) }}</p>
              </div>

              <div class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Tổng chiết khấu</p>
                <p class="has-text-danger has-text-weight-bold">{{ $numtoString(calculatorData.totalDiscount) }}</p>
              </div>
              <div class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Giá sau chiết khấu</p>
                <p class="has-text-black has-text-weight-bold">{{ $numtoString(calculatorData.salePrice) }}</p>
              </div>
              <div v-if="selectedPolicy.contract_allocation_percentage < 100"
                class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Giá trị bảo đảm</p>
                <p class="has-text-primary">{{ $numtoString(calculatorData.allocatedPrice) }}</p>
              </div>
              <div v-if="totalPaid === 0" class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Đặt cọc</p>
                <p class="has-text-primary">{{ $numtoString(selectedPolicy.deposit) }}</p>
              </div>
              <div class="cell is-col-span-6-mobile is-col-span-1-desktop">
                <p class="is-size-6 has-text-weight-bold mb-1">Khách hàng</p>
                <p v-if="selectedCustomer" class="has-text-primary has-text-weight-medium">
                  {{ selectedCustomer.code }} - {{ selectedCustomer.fullname }}
                </p>
                <p v-else class="has-text-grey is-italic is-size-6">Chưa chọn</p>
              </div>
            </div>
          </div>

          <hr class="my-4" style="background-color: var(--bulma-background)"></hr>

          <!-- Detailed Discounts -->
          <div v-if="calculatorData.detailedDiscounts && calculatorData.detailedDiscounts.length > 0" class="mt-4 mb-4">
            <p class="has-text-weight-bold is-size-5 mb-2 has-text-primary is-underlined">
              CHI TIẾT CHIẾT KHẤU:
            </p>
            <table class="table is-fullwidth is-hoverable is-size-6">
              <thead>
                <tr>
                  <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;"
                    colspan="2">Diễn giải chiết khấu</th>
                  <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                    style="border: none;" width="15%">Giá trị</th>
                  <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                    style="border: none;" width="20%">Thành tiền</th>
                  <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                    style="border: none;" width="20%">Còn lại</th>
                </tr>
              </thead>
              <tbody>
                <tr style="border-bottom: 1px solid #f5f5f5;" class="has-text-grey-light">
                  <td colspan="4" class="has-text-right pt-1 pb-1">Giá gốc</td>
                  <td class="has-text-right has-text-weight-bold pt-1 pb-1">{{
                    $numtoString(calculatorData.originPrice) }}</td>
                </tr>
                <tr v-for="(item, idx) in calculatorData.detailedDiscounts" :key="`discount-${idx}`"
                  style="border-bottom: 1px solid #f5f5f5;">
                  <td width="5%" class="has-text-centered">{{ idx + 1 }}</td>
                  <td>
                    <span class="has-text-weight-semibold">{{ item.name }}</span>
                    <span class="tag is-primary has-text-white is-rounded border ml-1">{{ item.code }}</span>
                  </td>
                  <td class="has-text-right">{{ item.customType === 1 ? item.customValue + '%' :
                    $numtoString(item.customValue) }}</td>
                  <td class="has-text-right has-text-danger">-{{ $numtoString(item.amount) }}</td>
                  <td class="has-text-right has-text-primary">{{ $numtoString(item.remaining) }}</td>
                </tr>
              </tbody>
            </table>
          </div>

          <!-- Early Payment Details -->
          <div v-if="isEarlyPaymentActive" class="mt-4 mb-4">
            <!-- Original Schedule -->
            <p class="has-text-weight-bold is-size-5 mb-2 has-text-primary is-underlined">
              LỊCH THANH TOÁN GỐC (THEO CHÍNH SÁCH)
            </p>
            <div class="table-container schedule-container mb-4">
              <table class="table is-fullwidth is-hoverable is-size-6">
                <thead>
                  <tr>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Đợt
                    </th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Tỷ lệ</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Số tiền (VND)</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Ngày
                      bắt đầu</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Ngày
                      đến hạn</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Số ngày</th>
                  </tr>
                </thead>
                <tbody>
                  <tr v-for="(plan, index) in calculatorData.originalPaymentSchedule" :key="`orig-plan-${index}`"
                    style="border-bottom: 1px solid #f5f5f5;">
                    <td class="has-text-weight-semibold">Đợt {{ plan.cycle }}</td>
                    <td class="has-text-right">{{ plan.type === 1 ? `${plan.value}%` : '-' }}</td>
                    <td class="has-text-right">{{ $numtoString(plan.amount) }}</td>
                    <td>{{ formatDate(plan.from_date) }}</td>
                    <td>{{ formatDate(plan.to_date) }}</td>
                    <td class="has-text-right">{{ plan.days }}</td>
                  </tr>
                </tbody>
              </table>
            </div>

            <!-- Early Discount Calculation Details -->
            <p class="has-text-weight-bold is-size-5 mb-2 has-text-primary is-underlined">
              DIỄN GIẢI CHIẾT KHẤU THANH TOÁN SỚM
            </p>
            <div class="table-container schedule-container">
              <table class="table is-fullwidth is-hoverable is-size-6">
                <thead>
                  <tr>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Đợt
                    </th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Hạn
                      TT Gốc</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Ngày
                      TT Thực Tế</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Số tiền gốc</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Số ngày TT sớm</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Tỷ lệ CK (%/ngày)</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Tiền chiết khấu</th>
                  </tr>
                </thead>
                <tbody>
                  <tr v-for="(item, idx) in calculatorData.earlyDiscountDetails" :key="`early-discount-${idx}`"
                    style="border-bottom: 1px solid #f5f5f5;">
                    <td>Đợt {{ item.cycle }}</td>
                    <td>{{ formatDate(item.original_payment_date) }}</td>
                    <td>{{ formatDate(item.actual_payment_date) }}</td>
                    <td class="has-text-right">{{ $numtoString(item.original_amount) }}</td>
                    <td class="has-text-right">{{ item.early_days }}</td>
                    <td class="has-text-right">{{ item.discount_rate }}</td>
                    <td class="has-text-right has-text-danger">-{{ $numtoString(item.discount_amount) }}</td>
                  </tr>
                </tbody>
                <tfoot>
                  <tr class="has-background-light">
                    <th colspan="6" class="has-text-right has-text-weight-bold">Tổng chiết khấu thanh toán sớm</th>
                    <th class="has-text-right has-text-weight-bold has-text-danger">-{{
                      $numtoString(totalEarlyDiscount) }}</th>
                  </tr>
                </tfoot>
              </table>
            </div>
          </div>

          <!-- Payment Schedule Table -->
          <div v-if="displaySchedule.length > 0" class="mt-4">
            <div class="level m-0 mb-2 is-mobile">
              <div class="level-left">
                <p class="has-text-weight-bold is-size-5 has-text-primary is-underlined">
                  <span v-if="isEarlyPaymentActive">LỊCH THANH TOÁN CUỐI CÙNG</span>
                  <span v-else>LỊCH THANH TOÁN</span>
                </p>
              </div>
              <div class="level-right" id="ignore-print">
                <div class="buttons are-small has-addons">
                  <button class="button" @click="viewMode = 'table'"
                    :class="viewMode === 'table' ? 'is-link is-selected' : 'is-light'">
                    <span class="is-size-6">Bảng</span>
                  </button>
                  <button class="button" @click="viewMode = 'list'"
                    :class="viewMode === 'list' ? 'is-link is-selected' : 'is-light'">
                    <span class="is-size-6">Thẻ</span>
                  </button>
                </div>
              </div>
            </div>

            <!-- Table View -->
            <div v-if="viewMode === 'table'" class="table-container schedule-container">
              <table class="table is-fullwidth is-hoverable is-size-6">
                <thead>
                  <tr>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Đợt
                      thanh toán</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Số tiền (VND)</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Đã thanh toán</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal has-text-right"
                      style="border: none;">Còn phải TT</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Ngày
                      bắt đầu</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Ngày
                      đến hạn</th>
                    <th class="has-background-primary has-text-white has-font-weight-normal" style="border: none;">Trạng
                      thái</th>
                  </tr>
                </thead>
                <tbody>
                  <tr v-for="(plan, index) in displaySchedule" :key="`plan-${index}`"
                    style="border-bottom: 1px solid #f5f5f5;"
                    :class="plan.is_merged ? 'has-background-warning-light' : ''">
                    <td class="has-text-weight-semibold" :class="plan.is_merged ? 'has-text-warning' : ''">
                      Đợt {{ plan.cycle }}
                      <span v-if="plan.is_merged" class="tag is-warning is-light ml-1 is-size-7">GỘP SỚM</span>
                    </td>
                    <td class="has-text-right">
                      <div v-if="plan.is_merged" class="has-text-right">
                        <p class="has-text-grey" title="Tổng các đợt gốc">{{ $numtoString(totalOriginalEarlyAmount) }}
                        </p>
                        <p class="has-text-danger" title="Chiết khấu thanh toán sớm">- {{
                          $numtoString(totalEarlyDiscount) }}</p>
                        <hr class="my-1"
                          style="background: hsla(0, 0%, 0%, 0.2); margin-left: auto; width: 50%;">
                        <p class="has-text-weight-bold">{{ $numtoString(plan.amount) }}</p>
                      </div>
                      <span v-else>{{ $numtoString(plan.amount) }}</span>
                    </td>
                    <td class="has-text-right has-text-success">{{ $numtoString(plan.paid_amount) }}</td>
                    <td class="has-text-right has-text-danger">{{ $numtoString(plan.remain_amount) }}</td>
                    <td>{{ formatDate(plan.from_date) }}</td>
                    <td>{{ formatDate(plan.to_date) }}</td>
                    <td>
                      <span v-if="plan.status === 2" class="tag is-success">Đã thanh toán</span>
                      <span v-else class="tag is-warning">Chờ thanh toán</span>
                    </td>
                  </tr>
                </tbody>
                <tfoot>
                  <tr class="has-background-light">
                    <th class="has-text-right has-text-weight-bold">Tổng cộng</th>
                    <th class="has-text-right has-text-weight-bold">{{ $numtoString(totalAmount) }}</th>
                    <th class="has-text-right has-text-weight-bold has-text-success">{{ $numtoString(totalPaid) }}
                    </th>
                    <th class="has-text-right has-text-weight-bold has-text-danger">{{
                      $numtoString(calculatorData.totalRemaining) }}</th>
                    <th colspan="3"></th>
                  </tr>
                </tfoot>
              </table>
            </div>

            <!-- List View (Card) -->
            <div v-else-if="viewMode === 'list'" class="schedule-container">
              <div v-for="(plan, index) in displaySchedule" :key="`card-${index}`" class="card mb-4"
                :class="plan.is_merged ? 'has-background-warning-light' : ''">
                <div class="card-content">
                  <div class="level is-mobile mb-5">
                    <div class="level-left">
                      <div class="level-item">
                        <span class="tag is-primary" :class="plan.is_merged ? 'is-warning' : ''">Đợt {{ plan.cycle
                        }}</span>
                        <span v-if="plan.is_merged" class="tag is-warning is-light ml-1 is-size-7">GỘP SỚM</span>
                      </div>
                    </div>
                    <div class="level-right">
                      <div class="level-item has-text-weight-bold">
                        <div v-if="plan.is_merged" class="has-text-right">
                          <p class="has-text-grey" title="Tổng các đợt gốc">{{ $numtoString(totalOriginalEarlyAmount)
                          }}</p>
                          <p class="has-text-danger" title="Chiết khấu thanh toán sớm">- {{
                            $numtoString(totalEarlyDiscount) }}</p>
                          <hr class="my-1"
                            style="background: hsla(0, 0%, 0%, 0.2); margin-left: auto">
                          <p class="has-text-weight-bold">{{ $numtoString(plan.amount) }}</p>
                        </div>
                        <span v-else>{{ $numtoString(plan.amount) }}</span>
                      </div>
                    </div>
                  </div>
                  <div class="level is-mobile mb-1">
                    <div class="level-left">Đã thanh toán:</div>
                    <div class="level-right has-text-success">{{ $numtoString(plan.paid_amount) }}</div>
                  </div>
                  <div class="level is-mobile mb-1">
                    <div class="level-left">Còn phải TT:</div>
                    <div class="level-right has-text-danger">{{ $numtoString(plan.remain_amount) }}</div>
                  </div>
                  <div class="level is-mobile mb-1">
                    <div class="level-left">Từ ngày:</div>
                    <div class="level-right">{{ formatDate(plan.from_date) }}</div>
                  </div>
                  <div class="level is-mobile mb-1">
                    <div class="level-left">Đến hạn:</div>
                    <div class="level-right">{{ formatDate(plan.to_date) }}</div>
                  </div>
                  <div class="level is-mobile">
                    <div class="level-left">Trạng thái:</div>
                    <div class="level-right">
                      <span v-if="plan.status === 2" class="tag is-success">Đã thanh toán</span>
                      <span v-else class="tag is-warning">Chờ thanh toán</span>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>

          <!-- Summary Footer -->
          <div class="" style="border-top: 1px solid #eee;">
            <div class="level is-mobile is-size-6 my-4">
              <div class="level-right">
                <div class="level-item">
                  <span class="is-uppercase is-size-4 has-text-weight-semibold">Tổng cộng:&nbsp;</span>
                  <span class="has-text-success has-text-weight-bold is-size-4">
                    {{ $numtoString(calculatorData.allocatedPrice) }}
                  </span>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref, computed } from 'vue';
import dayjs from 'dayjs';

// Props - CHỈ NHẬN DỮ LIỆU ĐÃ TÍNH TOÁN
const props = defineProps({
  productData: {
    type: Object,
    default: null
  },
  selectedPolicy: {
    type: Object,
    default: null
  },
  selectedCustomer: {
    type: Object,
    default: null
  },
  calculatorData: {
    type: Object,
    required: true,
    // Cấu trúc:
    // {
    //   originPrice: number,
    //   totalDiscount: number,
    //   salePrice: number,
    //   allocatedPrice: number,
    //   originalPaymentSchedule: array,
    //   finalPaymentSchedule: array,
    //   earlyDiscountDetails: array,
    //   totalRemaining: number,
    //   detailedDiscounts: array,
    //   baseDate: Date
    // }
  },
  isLoading: {
    type: Boolean,
    default: false
  }
});

// Emits
const emit = defineEmits(['print']);

// Local state
const viewMode = ref('table');

// Computed - CHỈ HIỂN THỊ, KHÔNG TÍNH TOÁN
const displaySchedule = computed(() => {
  return props.calculatorData?.finalPaymentSchedule || [];
});

const isEarlyPaymentActive = computed(() => {
  return props.calculatorData.earlyDiscountDetails && props.calculatorData.earlyDiscountDetails.length > 0;
});

const totalEarlyDiscount = computed(() => {
  return props.calculatorData.earlyDiscountDetails?.reduce((sum, item) => sum + item.discount_amount, 0) || 0;
});

const totalOriginalEarlyAmount = computed(() => {
  return props.calculatorData.earlyDiscountDetails?.reduce((sum, item) => sum + item.original_amount, 0) || 0;
});

const totalAmount = computed(() => {
  return displaySchedule.value.reduce((sum, plan) => sum + plan.amount, 0);
});

const totalPaid = computed(() => {
  return displaySchedule.value.reduce((sum, plan) => sum + plan.paid_amount, 0);
});

const formatDate = (date) => {
  if (!date) return '-';
  return dayjs(date).format('DD/MM/YYYY');
};
</script>

<style scoped>
.table-container.schedule-container thead th {
  position: sticky;
  top: 0;
  background: white;
  z-index: 2;
  border-bottom: 1px solid #dbdbdb !important;
}

.table-container {
  max-height: 400px;
  overflow-y: auto;
}

.border {
  border: 1px solid #dbdbdb;
}

li.is-active a,
li a:hover {
  color: white !important;
  background-color: #204853 !important;
  transition: all 0.3s ease;
}

.content {
  display: block;
}

.content p {
  margin: 0;
}

.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.3s;
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
}

tr,
td,
th,
.card {
  page-break-inside: avoid !important;
}

@media print {
  .schedule-container {
    max-height: none;
    overflow: visible;
  }

  .table-container.schedule-container thead th {
    position: static;
  }

  #ignore-print {
    display: none !important;
  }

  tr,
  td,
  th {
    page-break-inside: avoid !important;
  }
}
</style>