import {
  PropType,
  defineComponent,
  onMounted,
  reactive,
  toRefs,
  watch
} from 'vue';
import ResourceSearchGroup from './resource-search-group';
import { NScrollbar, NSpin, useDialog, useMessage } from 'naive-ui';
import styles from './index.module.less';
import CardType from '/src/components/card-type';
import { materialQueryPage } from '/src/views/natural-resources/api';
import TheEmpty from '/src/components/TheEmpty';
import { usePrepareStore } from '/src/store/modules/prepareLessons';
import { saveCourseware } from '../../../api';
import { useDebounceFn } from '@vueuse/core';
import CardPreview from '/src/components/card-preview';

const formatType = (type: string) => {
  if (type === 'shareResources') {
    return 2;
  } else if (type === 'myResources') {
    return 3;
  } else if (type === 'myCollect') {
    return 4;
  }
};

export default defineComponent({
  name: 'share-resources',
  props: {
    type: {
      type: String as PropType<'shareResources' | 'myResources' | 'myCollect'>,
      default: 'shareResources'
    }
  },
  setup(props) {
    const prepareStore = usePrepareStore();
    const message = useMessage();
    const { type } = toRefs(props);
    const state = reactive({
      loading: false,
      finshed: false, // 是否加载完
      pagination: {
        page: 1,
        rows: 20
      },
      searchGroup: {
        type: type.value === 'shareResources' ? 'MUSIC' : '', //
        name: '',
        bookVersionId: null,
        subjectId: null,
        sourceType: formatType(type.value),
        enableFlag: true
      },
      tableList: [] as any,
      show: false,
      item: {} as any
    });

    // 查询列表
    const getList = async () => {
      try {
        if (state.pagination.page === 1) {
          state.loading = true;
        }
        const { data } = await materialQueryPage({
          ...state.searchGroup,
          ...state.pagination,
          subjectId: prepareStore.getSubjectId
        });
        state.loading = false;
        const tempRows = data.rows || [];
        const temp: any = [];
        tempRows.forEach((row: any) => {
          const index = prepareStore.getCoursewareList.findIndex(
            (course: any) => course.materialId === row.id
          );
          temp.push({
            id: row.id,
            coverImg: row.coverImg,
            type: row.type,
            title: row.name,
            isCollect: !!row.favoriteFlag,
            isSelected: row.sourceFrom === 'PLATFORM' ? true : false,
            content: row.content,
            exist: index !== -1 ? true : false // 是否存在
          });
        });
        state.tableList.push(...temp);

        state.finshed = data.pages <= data.current ? true : false;
      } catch {
        state.loading = false;
      }
    };

    // const onSearch = async (item: any) => {
    //   state.pagination.page = 1;
    //   state.tableList = [];
    //   state.searchGroup = Object.assign(state.searchGroup, item);
    //   getList();
    // };
    const throttledFnSearch = useDebounceFn(item => {
      state.pagination.page = 1;
      state.tableList = [];
      state.searchGroup = Object.assign(state.searchGroup, item);
      getList();
    }, 500);

    // 添加资源
    const onAdd = async (item: any) => {
      // dialog.warning({
      //   title: '提示',
      //   content: `是否添加"${item.title}"资源？`,
      //   positiveText: '确定',
      //   negativeText: '取消',
      //   onPositiveClick: async () => {
      try {
        const temp: any = [];
        prepareStore.getCoursewareList.forEach((item: any) => {
          temp.push({
            materialId: item.materialId,
            materialName: item.title,
            materialType: item.type,
            id: item.id
          });
        });

        // 保存课件
        await saveCourseware({
          coursewareDetailKnowledgeId: prepareStore.getSelectKey,
          lessonCoursewareId: prepareStore.getLessonCoursewareId,
          lessonCoursewareDetailId: prepareStore.getLessonCoursewareDetailId,
          materialList: [
            ...temp,
            {
              materialName: item.title,
              materialType: item.type,
              materialId: item.id
            }
          ]
        });

        message.success('添加成功');
        prepareStore.setIsAddResource(true);
      } catch {
        //
      }
      //   }
      // });
    };

    watch(
      () => prepareStore.coursewareList,
      () => {
        state.tableList.forEach((item: any) => {
          const index = prepareStore.getCoursewareList.findIndex(
            (course: any) => course.materialId === item.id
          );
          item.exist = index !== -1 ? true : false; // 是否存在
        });
      },
      {
        deep: true,
        immediate: true
      }
    );

    onMounted(() => {
      getList();
    });
    return () => (
      <div>
        <ResourceSearchGroup
          type={props.type}
          onSearch={(item: any) => throttledFnSearch(item)}
        />
        <NScrollbar
          class={styles.listContainer}
          onScroll={(e: any) => {
            const clientHeight = e.target?.clientHeight;
            const scrollTop = e.target?.scrollTop;
            const scrollHeight = e.target?.scrollHeight;
            // 是否到底，是否加载完
            if (
              clientHeight + scrollTop + 20 >= scrollHeight &&
              !state.finshed &&
              !state.loading
            ) {
              state.pagination.page = state.pagination.page + 1;
              getList();
            }
          }}>
          <NSpin show={state.loading} size={'small'}>
            <div
              class={[
                styles.listSection,
                !state.loading && state.tableList.length <= 0
                  ? styles.emptySection
                  : ''
              ]}>
              {state.tableList.length > 0 && (
                <div class={styles.list}>
                  {state.tableList.map((item: any) => (
                    <CardType
                      isShowAdd
                      item={item}
                      isShowCollect={false}
                      isShowAddDisabled={prepareStore.getIsEditResource}
                      onAdd={(item: any) => onAdd(item)}
                      disabledMouseHover={false}
                      onClick={() => {
                        if (item.type === 'IMG') return;
                        state.show = true;
                        state.item = item;
                      }}
                    />
                  ))}
                </div>
              )}

              {!state.loading && state.tableList.length <= 0 && <TheEmpty />}
            </div>
          </NSpin>
        </NScrollbar>

        {/* 弹窗查看 */}
        <CardPreview v-model:show={state.show} item={state.item} />
      </div>
    );
  }
});