import { essayProjection } from '@project/utils/projection';

export default OakComponent({
    entity: 'essay',
    isList: true,
    projection: essayProjection,
    sorters: [
        {
            // 先按置顶排序
            sorter: {
                $attr: {
                    isTop: 1,
                },
                $direction: 'desc',
            },
        },
        {
            // 再按创建时间排序
            sorter: {
                $attr: {
                    $$createAt$$: 1,
                },
                $direction: 'desc',
            },
        },
    ],
    // 只能看到已经发布的
    filters: [
        {
            filter: {
                iState: 'published',
            },
        },
        {
            // 如果存在categoryId，则按照categoryId过滤
            filter() {
                if (!this.props.categoryId) {
                    return {};
                }
                return {
                    category: {
                        id: this.props.categoryId,
                    },
                };
            },
        },
    ],
    listeners: {
        searchParam(prev, next) {
            // 如果searchParam变化，则重新获取数据
            if (prev.searchParam !== next.searchParam) {
                this.addNamedFilter({
                    // 如果存在searchParam，则按照searchParam过滤
                    filter() {
                        if (!next.searchParam.searchText) {
                            return {};
                        }
                        switch (next.searchParam.searchType) {
                            case 'title':
                                return {
                                    title: {
                                        $includes: next.searchParam.searchText,
                                    },
                                };
                            case 'content':
                                return {
                                    $text: {
                                        $search: next.searchParam.searchText,
                                    },
                                };
                            default:
                                return {};
                        }
                    },
                    '#name': 'searchParam',
                }, true);
            }
        },
    },
    formData({ data }) {
        return {
            list: data.map((item) => {
                const fileIndex = item?.extraFile$entity?.findIndex(
                    (item) => item.tag1 === 'cover'
                );
                if (fileIndex !== undefined && fileIndex > -1) {
                    const url = this.features.extraFile.getUrl(
                        item!.extraFile$entity![fileIndex]
                    );
                    return {
                        ...item,
                        // 获取封面的url地址
                        cover: url,
                    };
                }
                return {
                    ...item,
                    cover: '',
                };
            }),
        };
    },
});