<script lang="ts" setup>
import PostContributorList from "@/components/user/PostContributorList.vue";
import { formatDatetime } from "@/utils/date";
import { usePermission } from "@/utils/permission";
import type { ListedPost, Post } from "@halo-dev/api-client";
import { consoleApiClient, coreApiClient } from "@halo-dev/api-client";
import {
  Dialog,
  IconAddCircle,
  IconDeleteBin,
  IconRefreshLine,
  Toast,
  VButton,
  VCard,
  VDropdownItem,
  VEmpty,
  VEntity,
  VEntityContainer,
  VEntityField,
  VLoading,
  VPageHeader,
  VPagination,
  VSpace,
  VStatusDot,
} from "@halo-dev/components";
import { useQuery } from "@tanstack/vue-query";
import { chunk } from "lodash-es";
import { ref, watch } from "vue";
import { useI18n } from "vue-i18n";
import PostTag from "./tags/components/PostTag.vue";

const { currentUserHasPermission } = usePermission();
const { t } = useI18n();

const checkedAll = ref(false);
const selectedPostNames = ref<string[]>([]);
const keyword = ref("");

const page = ref(1);
const size = ref(20);
const total = ref(0);

const {
  data: posts,
  isLoading,
  isFetching,
  refetch,
} = useQuery<ListedPost[]>({
  queryKey: ["deleted-posts", page, size, keyword],
  queryFn: async () => {
    const { data } = await consoleApiClient.content.post.listPosts({
      labelSelector: [`content.halo.run/deleted=true`],
      page: page.value,
      size: size.value,
      keyword: keyword.value,
    });

    total.value = data.total;

    return data.items;
  },
  refetchInterval: (data) => {
    const deletingPosts = data?.some(
      (post) =>
        !!post.post.metadata.deletionTimestamp || !post.post.spec.deleted
    );
    return deletingPosts ? 1000 : false;
  },
});

const checkSelection = (post: Post) => {
  return selectedPostNames.value.includes(post.metadata.name);
};

const handleCheckAllChange = (e: Event) => {
  const { checked } = e.target as HTMLInputElement;

  if (checked) {
    selectedPostNames.value =
      posts.value?.map((post) => {
        return post.post.metadata.name;
      }) || [];
  } else {
    selectedPostNames.value = [];
  }
};

const handleDeletePermanently = async (post: Post) => {
  Dialog.warning({
    title: t("core.deleted_post.operations.delete.title"),
    description: t("core.deleted_post.operations.delete.description"),
    confirmType: "danger",
    confirmText: t("core.common.buttons.confirm"),
    cancelText: t("core.common.buttons.cancel"),
    onConfirm: async () => {
      await coreApiClient.content.post.deletePost({
        name: post.metadata.name,
      });
      await refetch();

      Toast.success(t("core.common.toast.delete_success"));
    },
  });
};

const handleDeletePermanentlyInBatch = async () => {
  Dialog.warning({
    title: t("core.deleted_post.operations.delete_in_batch.title"),
    description: t("core.deleted_post.operations.delete_in_batch.description"),
    confirmType: "danger",
    confirmText: t("core.common.buttons.confirm"),
    cancelText: t("core.common.buttons.cancel"),
    onConfirm: async () => {
      const chunks = chunk(selectedPostNames.value, 5);

      for (const chunk of chunks) {
        await Promise.all(
          chunk.map((name) => {
            return coreApiClient.content.post.deletePost({
              name,
            });
          })
        );
      }

      await refetch();
      selectedPostNames.value = [];

      Toast.success(t("core.common.toast.delete_success"));
    },
  });
};

const handleRecovery = async (post: Post) => {
  Dialog.warning({
    title: t("core.deleted_post.operations.recovery.title"),
    description: t("core.deleted_post.operations.recovery.description"),
    confirmText: t("core.common.buttons.confirm"),
    cancelText: t("core.common.buttons.cancel"),
    onConfirm: async () => {
      await coreApiClient.content.post.patchPost({
        name: post.metadata.name,
        jsonPatchInner: [
          {
            op: "add",
            path: "/spec/deleted",
            value: false,
          },
        ],
      });

      await refetch();

      Toast.success(t("core.common.toast.recovery_success"));
    },
  });
};

const handleRecoveryInBatch = async () => {
  Dialog.warning({
    title: t("core.deleted_post.operations.recovery_in_batch.title"),
    description: t(
      "core.deleted_post.operations.recovery_in_batch.description"
    ),
    confirmText: t("core.common.buttons.confirm"),
    cancelText: t("core.common.buttons.cancel"),
    onConfirm: async () => {
      const chunks = chunk(selectedPostNames.value, 5);

      for (const chunk of chunks) {
        await Promise.all(
          chunk.map((name) => {
            const isPostExist = posts.value?.some(
              (item) => item.post.metadata.name === name
            );

            if (!isPostExist) {
              return Promise.resolve();
            }

            return coreApiClient.content.post.patchPost({
              name: name,
              jsonPatchInner: [
                {
                  op: "add",
                  path: "/spec/deleted",
                  value: false,
                },
              ],
            });
          })
        );
      }

      await refetch();
      selectedPostNames.value = [];

      Toast.success(t("core.common.toast.recovery_success"));
    },
  });
};

watch(selectedPostNames, (newValue) => {
  checkedAll.value = newValue.length === posts.value?.length;
});

watch(
  () => keyword.value,
  () => {
    page.value = 1;
  }
);
</script>
<template>
  <VPageHeader :title="$t('core.deleted_post.title')">
    <template #icon>
      <IconDeleteBin class="mr-2 self-center text-green-600" />
    </template>
    <template #actions>
      <VSpace>
        <VButton :route="{ name: 'Posts' }" size="sm">
          {{ $t("core.common.buttons.back") }}
        </VButton>
        <VButton
          v-permission="['system:posts:manage']"
          :route="{ name: 'PostEditor' }"
          type="secondary"
        >
          <template #icon>
            <IconAddCircle class="h-full w-full" />
          </template>
          {{ $t("core.common.buttons.new") }}
        </VButton>
      </VSpace>
    </template>
  </VPageHeader>

  <div class="m-0 md:m-4">
    <VCard :body-class="['!p-0']">
      <template #header>
        <div class="block w-full bg-gray-50 px-4 py-3">
          <div
            class="relative flex flex-col flex-wrap items-start gap-4 sm:flex-row sm:items-center"
          >
            <div
              v-permission="['system:posts:manage']"
              class="hidden items-center sm:flex"
            >
              <input
                v-model="checkedAll"
                type="checkbox"
                @change="handleCheckAllChange"
              />
            </div>
            <div class="flex w-full flex-1 items-center sm:w-auto">
              <SearchInput v-if="!selectedPostNames.length" v-model="keyword" />
              <VSpace v-else>
                <VButton type="danger" @click="handleDeletePermanentlyInBatch">
                  {{ $t("core.common.buttons.delete_permanently") }}
                </VButton>
                <VButton type="default" @click="handleRecoveryInBatch">
                  {{ $t("core.common.buttons.recovery") }}
                </VButton>
              </VSpace>
            </div>
            <VSpace spacing="lg" class="flex-wrap">
              <div class="flex flex-row gap-2">
                <div
                  class="group cursor-pointer rounded p-1 hover:bg-gray-200"
                  @click="refetch()"
                >
                  <IconRefreshLine
                    :class="{ 'animate-spin text-gray-900': isFetching }"
                    class="h-4 w-4 text-gray-600 group-hover:text-gray-900"
                  />
                </div>
              </div>
            </VSpace>
          </div>
        </div>
      </template>

      <VLoading v-if="isLoading" />

      <Transition v-else-if="!posts?.length" appear name="fade">
        <VEmpty
          :message="$t('core.deleted_post.empty.message')"
          :title="$t('core.deleted_post.empty.title')"
        >
          <template #actions>
            <VSpace>
              <VButton @click="refetch">
                {{ $t("core.common.buttons.refresh") }}
              </VButton>
              <VButton :route="{ name: 'Posts' }" type="secondary">
                {{ $t("core.common.buttons.back") }}
              </VButton>
            </VSpace>
          </template>
        </VEmpty>
      </Transition>

      <Transition v-else appear name="fade">
        <VEntityContainer>
          <VEntity
            v-for="post in posts"
            :key="post.post.metadata.name"
            :is-selected="checkSelection(post.post)"
          >
            <template
              v-if="currentUserHasPermission(['system:posts:manage'])"
              #checkbox
            >
              <input
                v-model="selectedPostNames"
                :value="post.post.metadata.name"
                name="post-checkbox"
                type="checkbox"
              />
            </template>
            <template #start>
              <VEntityField :title="post.post.spec.title" width="27rem">
                <template #description>
                  <div class="flex flex-col gap-1.5">
                    <VSpace class="flex-wrap !gap-y-1">
                      <p
                        v-if="post.categories.length"
                        class="inline-flex flex-wrap gap-1 text-xs text-gray-500"
                      >
                        {{ $t("core.post.list.fields.categories") }}
                        <span
                          v-for="(category, categoryIndex) in post.categories"
                          :key="categoryIndex"
                          class="cursor-pointer hover:text-gray-900"
                        >
                          {{ category.spec.displayName }}
                        </span>
                      </p>
                      <span class="text-xs text-gray-500">
                        {{
                          $t("core.post.list.fields.visits", {
                            visits: post.stats.visit,
                          })
                        }}
                      </span>
                      <span class="text-xs text-gray-500">
                        {{
                          $t("core.post.list.fields.comments", {
                            comments: post.stats.totalComment || 0,
                          })
                        }}
                      </span>
                    </VSpace>
                    <VSpace v-if="post.tags.length" class="flex-wrap">
                      <PostTag
                        v-for="(tag, tagIndex) in post.tags"
                        :key="tagIndex"
                        :tag="tag"
                        route
                      ></PostTag>
                    </VSpace>
                  </div>
                </template>
              </VEntityField>
            </template>
            <template #end>
              <VEntityField>
                <template #description>
                  <PostContributorList
                    :owner="post.owner"
                    :contributors="post.contributors"
                  />
                </template>
              </VEntityField>
              <VEntityField v-if="!post?.post?.spec.deleted">
                <template #description>
                  <VStatusDot
                    v-tooltip="$t('core.common.tooltips.recovering')"
                    state="success"
                    animate
                  />
                </template>
              </VEntityField>
              <VEntityField v-if="post?.post?.metadata.deletionTimestamp">
                <template #description>
                  <VStatusDot
                    v-tooltip="$t('core.common.status.deleting')"
                    state="warning"
                    animate
                  />
                </template>
              </VEntityField>
              <VEntityField>
                <template #description>
                  <span class="truncate text-xs tabular-nums text-gray-500">
                    {{ formatDatetime(post.post.spec.publishTime) }}
                  </span>
                </template>
              </VEntityField>
            </template>
            <template
              v-if="currentUserHasPermission(['system:posts:manage'])"
              #dropdownItems
            >
              <VDropdownItem
                type="danger"
                @click="handleDeletePermanently(post.post)"
              >
                {{ $t("core.common.buttons.delete_permanently") }}
              </VDropdownItem>
              <VDropdownItem @click="handleRecovery(post.post)">
                {{ $t("core.common.buttons.recovery") }}
              </VDropdownItem>
            </template>
          </VEntity>
        </VEntityContainer>
      </Transition>

      <template #footer>
        <VPagination
          v-model:page="page"
          v-model:size="size"
          :page-label="$t('core.components.pagination.page_label')"
          :size-label="$t('core.components.pagination.size_label')"
          :total-label="
            $t('core.components.pagination.total_label', { total: total })
          "
          :total="total"
          :size-options="[20, 30, 50, 100]"
        />
      </template>
    </VCard>
  </div>
</template>
