119 lines
3.9 KiB
TypeScript
119 lines
3.9 KiB
TypeScript
import wordCount from 'word-count';
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export enum DataAnomaly {
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DataNotFound = 'DataNotFound',
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Invalid = 'DataInvalid',
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}
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export type ArticleMetaData = {
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id: string;
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title: string;
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description: string;
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created_at: Date | DataAnomaly;
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published_at: Date | DataAnomaly;
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draft: boolean;
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updated_at: Date[] | DataAnomaly;
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tags: string[];
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tech_stack: string[] | DataAnomaly;
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tech_stack_percent: number[] | DataAnomaly;
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tech_stack_icon_names: string[] | DataAnomaly;
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tech_stack_theme_colors: string[] | DataAnomaly;
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word_count: number | DataAnomaly;
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};
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/*
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* 也许Nuxt Content也能做值处理，并且也有能用于ts传参的自动化生成类型
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* 但我放弃了 我就自己写了
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*/
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function getDate(data: Record<string, unknown>, key: string): Date | DataAnomaly {
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if (data[key] === undefined)
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return DataAnomaly.DataNotFound;
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if (typeof data[key] !== 'string')
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return DataAnomaly.Invalid;
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const date = new Date(data[key] as string);
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if (isNaN(date.getTime()))
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return DataAnomaly.Invalid;
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return date;
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}
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export function toArticleMetaDataType(src: unknown): ArticleMetaData {
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if (typeof src !== 'object' || src === null) {
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throw new TypeError('Expected an object');
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}
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const data = src as Record<string, unknown>;
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const created_at: Date | DataAnomaly = getDate(data, 'created_at');
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const published_at: Date | DataAnomaly = getDate(data, 'published_at');
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let updated_at: Date[] | DataAnomaly;
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if (data.updated_at === undefined) {
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updated_at = DataAnomaly.DataNotFound;
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} else if (!Array.isArray(data.updated_at)) {
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updated_at = DataAnomaly.Invalid;
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} else {
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updated_at = data.updated_at.map((x: string) => new Date(x));
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updated_at = updated_at.reduce((last, cur) => last || isNaN(cur.getTime()), false) ? DataAnomaly.Invalid : updated_at;
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}
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let tech_stack: string[] | DataAnomaly;
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if (data.tech_stack === undefined) {
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tech_stack = DataAnomaly.DataNotFound;
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} else if (!Array.isArray(data.tech_stack)) {
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tech_stack = DataAnomaly.Invalid;
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} else {
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tech_stack = data.tech_stack;
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}
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let tech_stack_percent: number[] | DataAnomaly;
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if (data.tech_stack_percent === undefined) {
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tech_stack_percent = DataAnomaly.DataNotFound;
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} else if (!Array.isArray(data.tech_stack_percent)) {
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tech_stack_percent = DataAnomaly.Invalid;
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} else {
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tech_stack_percent = data.tech_stack_percent;
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}
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let tech_stack_icon_names: string[] | DataAnomaly;
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if (data.tech_stack_icon_names === undefined) {
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tech_stack_icon_names = DataAnomaly.DataNotFound;
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} else if (!Array.isArray(data.tech_stack_icon_names)) {
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tech_stack_icon_names = DataAnomaly.Invalid;
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} else {
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tech_stack_icon_names = data.tech_stack_icon_names;
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}
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let tech_stack_theme_colors: string[] | DataAnomaly;
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if (data.tech_stack_theme_colors === undefined) {
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tech_stack_theme_colors = DataAnomaly.DataNotFound;
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} else if (!Array.isArray(data.tech_stack_theme_colors)) {
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tech_stack_theme_colors = DataAnomaly.Invalid;
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} else {
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tech_stack_theme_colors = data.tech_stack_theme_colors;
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}
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let wordCountResult;
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if (data.rawbody === undefined)
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wordCountResult = DataAnomaly.DataNotFound;
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else if (typeof data.rawbody !== 'string')
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wordCountResult = DataAnomaly.Invalid;
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else {
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const contentWithoutMetaData = data.rawbody.replace(/^---[\s\S]*?---\n?/, '');
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wordCountResult = wordCount(contentWithoutMetaData);
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}
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return {
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id: String(data.id),
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title: String(data.title),
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description: String(data.description ?? ''),
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created_at: created_at,
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published_at: published_at,
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draft: Boolean(data.draft ?? false),
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updated_at: updated_at,
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tags: Array.isArray(data.tags) ? data.tags.map(String) : [],
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tech_stack: tech_stack,
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tech_stack_percent: tech_stack_percent,
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tech_stack_icon_names: tech_stack_icon_names,
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tech_stack_theme_colors: tech_stack_theme_colors,
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word_count: wordCountResult,
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};
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}
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