<script>
import Layout from "@/layout/custom.vue";
import VueSelect from "vue3-select-component";
import ApiServiece from "@/services/ApiService";
import moment from "jalali-moment";
import { onMounted, ref, watch, computed } from "vue";
import { toast } from "vue3-toastify";
import "vue3-toastify/dist/index.css";
import Swal from "sweetalert2";

import showDescription from "@/components/modals/commonModals/showDescription.vue";

export default {
  name: "BORDER",
  components: {
    Layout,
    showDescription,
    VueSelect,
  },
  setup() {
    let searchTimeout = null;
    const selectedDiscountFormat = ref("");
    const selectedDiscountType = ref("");
    const categories = ref([]);
    const products = ref([]);
    const selectedcategory = ref();
    const selectedProduct = ref();
    const searchPage = ref();
    const currentPage = ref(1);
    const totalPages = ref(1);
    const paginate = ref(20);
    const page = ref(1);

    const filterLoading = ref(false);
    const searchQuery = ref("");
    const discounts = ref();

    const convertToJalali = (date) => {
      if (!date) return

      return moment(date, "YYYY-MM-DD HH:mm:ss")
          .locale("fa")
          .format("YYYY/MM/DD");
    };

    const handleSearchChange = () => {
      clearTimeout(searchTimeout);

      searchTimeout = setTimeout(() => {
        getDiscounts();
        page.value = 1;
      }, 500);
    };

    watch(searchQuery, () => {
      handleSearchChange();
      page.value = 1;
    });

    const getDiscounts = () => {
      filterLoading.value = true;
      ApiServiece.get(
        `admin/discounts?title=${searchQuery.value || ""}&product_id=${
          selectedProduct.value || ""
        }&category_id=${selectedcategory.value || ""}&type=${
          selectedDiscountFormat.value || ""
        }&paginate=${paginate.value || 10}&page=${page.value || 1}`
      )
        .then((resp) => {
          filterLoading.value = false;
          discounts.value = resp.data.data.data;
          currentPage.value = resp.data.data.current_page;
          totalPages.value = resp.data.data.last_page;
        })
        .catch(() => {
          filterLoading.value = false;
        });
    };

    const visiblePages = computed(() => {
      const pages = [];
      if (totalPages.value <= 5) {
        for (let i = 1; i <= totalPages.value; i++) {
          pages.push(i);
        }
      } else {
        let start = currentPage.value - 2;
        let end = currentPage.value + 2;

        if (start < 1) {
          end += 1 - start;
          start = 1;
        }
        if (end > totalPages.value) {
          start -= end - totalPages.value;
          end = totalPages.value;
        }
        start = Math.max(start, 1);

        for (let i = start; i <= end; i++) {
          pages.push(i);
        }
      }
      return pages;
    });

    const deleteDiscount = (id, title) => {
      Swal.fire({
        text: `می خواهید تخفیف ${title} را حذف کنید؟`,
        icon: "warning",
        showCancelButton: true,
        confirmButtonColor: "#3085d6",
        cancelButtonColor: "#d33",
        confirmButtonText: "بله!",
        cancelButtonText: "خیر",
      }).then((result) => {
        if (result.isConfirmed) {
          ApiServiece.delete(`admin/discounts/${id}`)
            .then(() => {
              toast.success("!تخفیف با موفقیت حذف شد", {
                position: "top-right",
                autoClose: 3000,
              });
              discounts.value = discounts.value.filter(
                (discount) => discount.id !== id
              );
            })
            .catch((err) => {
              console.log(err);
              toast.error("!مشکلی در حذف کردن تخفیف پیش آمد", {
                position: "top-right",
                autoClose: 3000,
              });
            });
        }
      });
    };

    function handlePageInput() {
      if (searchPage.value < 1) {
        searchPage.value = 1;
      } else if (searchPage.value > totalPages.value) {
        searchPage.value = totalPages.value;
      }

      if (searchPage.value >= 1 && searchPage.value <= totalPages.value) {
        page.value = searchPage.value;
      }
    }

    const handleCategorySearch = async (searchTerm) => {
      if (searchTerm.length < 3) return;

      try {
        const response = await ApiServiece.get(
          `admin/categories?title=${searchTerm}`
        );
        categories.value = response.data.data;
        console.log(categories.value, "products");
      } catch (error) {
        console.error("Error fetching products:", error);
        categories.value = [];
      }
    };

    const formattedCategories = computed(() =>
      Array.isArray(categories.value)
        ? categories.value.map((category) => ({
            value: category?.id,
            label: category?.translation?.title || '',
          }))
        : []
    );

    const handleProductsSearch = async (searchTerm) => {
      if (searchTerm.length < 3) return;

      try {
        const response = await ApiServiece.get(
          `admin/products?title=${searchTerm}`
        );
        products.value = response.data.data;
      } catch (error) {
        products.value = [];
      }
    };

    const formattedProducts = computed(() =>
      Array.isArray(products.value)
        ? products.value.map((product) => ({
            value: product?.id,
            label: product?.translation?.title,
          }))
        : []
    );

    watch(page, () => {
      getDiscounts();
    });

    watch(selectedDiscountType, () => {
      (selectedProduct.value = ""), (selectedcategory.value = "");
      if (selectedDiscountType.value === "") {
        filterLoading.value = true;
        ApiServiece.get(
          `admin/discounts?title=${searchQuery.value || ""}&paginate=${
            paginate.value || 10
          }&page=${page.value || 1}`
        )
          .then((resp) => {
            filterLoading.value = false;
            discounts.value = resp.data.data.data;
            console.log(resp.data.data);
            currentPage.value = resp.data.data.current_page;
            totalPages.value = resp.data.data.last_page;
          })
          .catch(() => {
            filterLoading.value = false;
          });
      }
    });

    watch([selectedProduct, selectedcategory], () => {
      getDiscounts();
    });

    watch(selectedDiscountFormat, () => {
      getDiscounts();
    });

    const nextPage = () => {
      if (currentPage.value < totalPages.value) {
        page.value++;
        getDiscounts();
      }
    };

    const prevPage = () => {
      if (currentPage.value > 1) {
        page.value--;
        getDiscounts();
      }
    };

    onMounted(() => {
      getDiscounts();
    });
    return {
      discounts,
      convertToJalali,
      deleteDiscount,
      searchQuery,
      filterLoading,
      currentPage,
      totalPages,
      nextPage,
      prevPage,
      page,
      handlePageInput,
      searchPage,
      visiblePages,
      selectedDiscountType,
      handleCategorySearch,
      formattedCategories,
      formattedProducts,
      handleProductsSearch,
      selectedcategory,
      selectedProduct,
      selectedDiscountFormat,
    };
  },
};
</script>
<template>
  <Layout>
    <BRow>
      <div class="col-md-12">
        <div class="card shadow-sm border-0 rounded">
          <div
            class="card-header d-flex justify-content-between align-items-center"
            dir="rtl"
          >
            <div class="d-flex align-items-center">
              <input
                v-model="searchQuery"
                type="text"
                placeholder="جستجو..."
                class="form-control form-control-sm d-inline-block me-2"
                style="width: 250px; border-radius: 15px"
              />

              <select
                class="form-select form-select-sm"
                v-model="selectedDiscountFormat"
                style="width: 120px; border-radius: 15px"
              >
                <option value="" disabled selected>حالت</option>
                <option value="">همه</option>
                <option value="percentage">درصدی</option>
                <option value="const">مبلغی</option>
              </select>

              <select
                class="form-select form-select-sm"
                v-model="selectedDiscountType"
                style="width: 120px; border-radius: 15px; margin-right: 7px"
              >
                <option value="" disabled selected>اعمال بر</option>
                <option value="">همه</option>
                <option value="products">محصولات</option>
                <option value="categories">دسته ها</option>
              </select>

              <VueSelect
                v-if="selectedDiscountType === 'categories'"
                style="--vs-border-radius: 16px; margin-right: 7px"
                v-model="selectedcategory"
                :options="formattedCategories"
                placeholder="دسته ای را انتخاب کنید"
                @search="handleCategorySearch"
              />

              <VueSelect
                v-if="selectedDiscountType === 'products'"
                style="--vs-border-radius: 16px; margin-right: 7px"
                v-model="selectedProduct"
                :options="formattedProducts"
                placeholder="محصولی را انتخاب کنید"
                @search="handleProductsSearch"
              />
            </div>
            <router-link
              to="/addDiscount"
              class="btn btn-light text-primary btn-sm px-3"
            >
              افزودن تخفیف
            </router-link>
          </div>
          <div v-if="!filterLoading" class="card-body table-border-style p-0">
            <div class="table-responsive">
              <table class="table table-hover table-bordered m-0" dir="rtl">
                <thead class="table-light">
                  <tr>
                    <th>عنوان</th>
                    <th>مدل</th>
                    <th>مقدار</th>
                    <th>حداقل سفارش</th>
                    <th>حداکثر میزان استفاده</th>
                    <th>تاریخ شروع</th>
                    <th>تاریخ انقضا</th>
                    <th>عملیات</th>
                  </tr>
                </thead>
                <tbody>
                  <tr v-for="discount in discounts" :key="discount.id">
                    <td>{{ discount?.title }}</td>
                    <td v-if="discount.type === 'const'">مبلغی</td>
                    <td v-if="discount.type === 'percentage'">درصدی</td>
                    <td>{{ discount.amount }}</td>
                    <td>{{ discount.min_order }}</td>
                    <td>{{ discount.max_usage || "" }}</td>
                    <td>{{ convertToJalali(discount?.starts_at) }}</td>
                    <td>{{ convertToJalali(discount?.expires_at) }}</td>
                    <td>
                      <router-link
                        :to="`/editDiscount/${discount?.id}`"
                        class="btn btn-sm btn-outline-warning me-1"
                      >
                        ویرایش
                      </router-link>
                      <button
                        @click="deleteDiscount(discount?.id, discount?.title)"
                        class="btn btn-sm btn-outline-danger"
                      >
                        حذف
                      </button>
                    </td>
                  </tr>
                </tbody>
              </table>
            </div>
          </div>
          <div
            v-else
            class="filter-loader card table-card user-profile-list"
          ></div>
        </div>
      </div>

      <showDescription :desc="brandDescription" />
    </BRow>
    <BRow>
      <BCol sm="12">
        <div class="d-flex justify-content-center">
          <nav aria-label="Page navigation">
            <ul class="pagination">
              <!-- Previous page -->
              <li class="page-item" :class="{ disabled: currentPage === 1 }">
                <span class="page-link" @click="prevPage">قبلی</span>
              </li>

              <!-- First page and leading dots -->
              <li
                v-if="visiblePages[0] > 1"
                class="page-item"
                @click="page = 1"
              >
                <a class="page-link" href="javascript:void(0)">1</a>
              </li>
              <li v-if="visiblePages[0] > 2" class="page-item disabled">
                <span class="page-link">...</span>
              </li>

              <!-- Visible pages -->
              <li
                v-for="n in visiblePages"
                :key="n"
                class="page-item"
                :class="{ active: currentPage === n }"
              >
                <a
                  class="page-link"
                  href="javascript:void(0)"
                  @click="page = n"
                >
                  {{ n }}
                </a>
              </li>

              <!-- Trailing dots and last page -->
              <li
                v-if="visiblePages[visiblePages.length - 1] < totalPages - 1"
                class="page-item disabled"
              >
                <span class="page-link">...</span>
              </li>
              <li
                v-if="visiblePages[visiblePages.length - 1] < totalPages"
                class="page-item"
                @click="page = totalPages"
              >
                <a class="page-link" href="javascript:void(0)">
                  {{ totalPages }}
                </a>
              </li>

              <!-- Next page -->
              <li
                class="page-item"
                :class="{ disabled: currentPage === totalPages }"
              >
                <span class="page-link" @click="nextPage">بعدی</span>
              </li>
            </ul>
          </nav>
        </div>
      </BCol>
      <BCol sm="4">
        <div class="ms-0 search-number">
          <input
            v-model="searchPage"
            type="text"
            class="form-control"
            placeholder="برو به صفحه"
            :max="totalPages"
            min="1"
            @input="handlePageInput"
          />
        </div>
      </BCol>
    </BRow>
  </Layout>
</template>

<style scoped>
.card {
  transition: transform 0.3s ease;
}
.card:hover {
  transform: translateY(-3px);
}
.table th,
.table td {
  vertical-align: middle;
  text-align: center;
}
.filter-loader {
  border: 4px solid rgba(0, 123, 255, 0.3);
  border-top: 4px solid #007bff;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 20px auto;
}

.subject-box {
  padding: 8px 14px;
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  color: #ef6c00;
  font-weight: 600;
  border-radius: 10px;
  box-shadow: 0px 2px 6px rgba(0, 0, 0, 0.1);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.subject-box i {
  color: #ef6c00;
  font-size: 1rem;
}

.subject-box:hover {
  transform: translateY(-2px);
  box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.15);
}
.search-number {
  display: flex;
  align-items: center;
}

.search-number input {
  width: 150px;
  padding: 0.5rem;
  font-size: 1rem;
  border-radius: 0.375rem;
  margin-bottom: 7px;
  border: 1px solid #ced4da;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-number input:focus {
  border-color: #007bff;
  box-shadow: 0 0 0 0.2rem rgba(38, 143, 255, 0.25);
}

.search-number input::placeholder {
  color: #6c757d;
}

.search-number input:disabled {
  background-color: #f8f9fa;
  cursor: not-allowed;
}
.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.page-item {
  flex: 0 0 auto;
}

.page-link {
  cursor: pointer;
  user-select: none;
}
</style>
