Create feed module
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Sam Becker
parent
9eb04f6015
commit
4d904517a5
@ -4,7 +4,8 @@ import {
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SITE_FEEDS_ENABLED,
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META_TITLE,
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} from '@/app/config';
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import { FEED_PHOTO_REQUEST_LIMIT, formatPhotoForFeedJson } from '@/app/feed';
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import { FEED_PHOTO_REQUEST_LIMIT } from '@/feed';
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import { formatPhotoForFeedJson } from '@/feed/json';
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// Cache for 24 hours
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export const revalidate = 86_400;
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@ -5,7 +5,8 @@ import {
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META_TITLE,
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SITE_FEEDS_ENABLED,
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} from '@/app/config';
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import { createRssItems, FEED_PHOTO_REQUEST_LIMIT } from '@/app/feed';
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import { FEED_PHOTO_REQUEST_LIMIT } from '@/feed';
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import { createRssItems } from '@/feed/rss';
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import { ABSOLUTE_PATH_FOR_RSS_XML } from '@/app/paths';
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// Cache for 24 hours
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116
src/app/feed.ts
116
src/app/feed.ts
@ -1,116 +0,0 @@
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import { descriptionForPhoto, Photo, titleForPhoto } from '@/photo';
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import { absolutePathForPhoto } from './paths';
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import {
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getNextImageUrlForRequest,
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NextImageSize,
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} from '@/platforms/next-image';
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import { formatDate, formatDateFromPostgresString } from '@/utility/date';
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import { formatStringForXml } from '@/utility/string';
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export const FEED_PHOTO_REQUEST_LIMIT = 40;
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export const FEED_PHOTO_WIDTH_SMALL = 200;
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export const FEED_PHOTO_WIDTH_MEDIUM = 640;
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export const FEED_PHOTO_WIDTH_LARGE = 1200;
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interface FeedMedia {
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url: string
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width: number
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height: number
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}
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interface FeedPhotoJson {
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id: string
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title: string
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url: string
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make?: string
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model?: string
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tags?: string[]
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takenAtNaive: string
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src: Record<'small' | 'medium' | 'large', FeedMedia>
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}
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interface FeedPhotoRss {
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id: string
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title: string
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description?: string
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link: string
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pubDate: Date
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media: Record<'content' | 'thumb', FeedMedia>
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}
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export interface FeedJson {
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meta: {
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title: string
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url: string
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}
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photos: FeedPhotoJson[]
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}
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const generateFeedMedia = (
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photo: Photo,
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size: NextImageSize,
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): FeedMedia => ({
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url: getNextImageUrlForRequest({ imageUrl: photo.url, size }),
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width: size,
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height: Math.round(size / photo.aspectRatio),
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});
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const getCoreFeedFields = (photo: Photo) => ({
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id: photo.id,
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title: titleForPhoto(photo),
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description: descriptionForPhoto(photo, true),
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});
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export const formatPhotoForFeedJson = (photo: Photo): FeedPhotoJson => ({
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...getCoreFeedFields(photo),
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url: absolutePathForPhoto({ photo }),
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...photo.make && { make: photo.make },
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...photo.model && { model: photo.model },
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...photo.tags.length > 0 && { tags: photo.tags },
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takenAtNaive: formatDateFromPostgresString(photo.takenAtNaive),
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src: {
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small: generateFeedMedia(photo, FEED_PHOTO_WIDTH_SMALL),
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medium: generateFeedMedia(photo, FEED_PHOTO_WIDTH_MEDIUM),
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large: generateFeedMedia(photo, FEED_PHOTO_WIDTH_LARGE),
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},
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});
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const formatPhotoForFeedRss = (photo: Photo): FeedPhotoRss => ({
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...getCoreFeedFields(photo),
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link: absolutePathForPhoto({ photo }),
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pubDate: photo.createdAt,
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media: {
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content: generateFeedMedia(photo, FEED_PHOTO_WIDTH_LARGE),
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thumb: generateFeedMedia(photo, FEED_PHOTO_WIDTH_MEDIUM),
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},
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});
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const feedPhotoToXml = (photo: FeedPhotoRss): string => {
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const formattedDate = formatDate({ date: photo.pubDate, length: 'rss' });
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return `<item>
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<title>${photo.title}</title>
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<link>${photo.link}</link>
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<pubDate>${formattedDate}</pubDate>
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<guid isPermaLink="true">${photo.link}</guid>
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${photo.description
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? `<description><![CDATA[${photo.description}]]></description>`
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: ''}
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<media:content
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url="${formatStringForXml(photo.media.content.url)}"
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type="image/jpeg"
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medium="image"
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width="${photo.media.content.width}"
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height="${photo.media.content.height}"
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>
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<media:thumbnail
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url="${formatStringForXml(photo.media.thumb.url)}"
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width="${photo.media.thumb.width}"
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height="${photo.media.thumb.height}"
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/>
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</media:content>
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</item>`;
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};
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export const createRssItems = (photos: Photo[]) =>
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photos.map(formatPhotoForFeedRss).map(feedPhotoToXml);
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32
src/feed/index.ts
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32
src/feed/index.ts
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@ -0,0 +1,32 @@
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import { descriptionForPhoto, Photo, titleForPhoto } from '@/photo';
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import {
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getNextImageUrlForRequest,
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NextImageSize,
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} from '@/platforms/next-image';
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export const FEED_PHOTO_REQUEST_LIMIT = 40;
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export const FEED_PHOTO_WIDTH_SMALL = 200;
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export const FEED_PHOTO_WIDTH_MEDIUM = 640;
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export const FEED_PHOTO_WIDTH_LARGE = 1200;
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export interface FeedMedia {
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url: string
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width: number
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height: number
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}
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export const generateFeedMedia = (
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photo: Photo,
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size: NextImageSize,
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): FeedMedia => ({
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url: getNextImageUrlForRequest({ imageUrl: photo.url, size }),
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width: size,
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height: Math.round(size / photo.aspectRatio),
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});
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export const getCoreFeedFields = (photo: Photo) => ({
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id: photo.id,
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title: titleForPhoto(photo),
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description: descriptionForPhoto(photo, true),
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});
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36
src/feed/json.ts
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36
src/feed/json.ts
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@ -0,0 +1,36 @@
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import { absolutePathForPhoto } from '@/app/paths';
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import {
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FEED_PHOTO_WIDTH_LARGE,
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FEED_PHOTO_WIDTH_MEDIUM,
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FEED_PHOTO_WIDTH_SMALL,
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FeedMedia,
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generateFeedMedia,
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getCoreFeedFields,
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} from '.';
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import { formatDateFromPostgresString } from '@/utility/date';
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import { Photo } from '@/photo';
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interface FeedPhotoJson {
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id: string
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title: string
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url: string
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make?: string
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model?: string
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tags?: string[]
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takenAtNaive: string
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src: Record<'small' | 'medium' | 'large', FeedMedia>
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}
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export const formatPhotoForFeedJson = (photo: Photo): FeedPhotoJson => ({
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...getCoreFeedFields(photo),
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url: absolutePathForPhoto({ photo }),
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...photo.make && { make: photo.make },
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...photo.model && { model: photo.model },
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...photo.tags.length > 0 && { tags: photo.tags },
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takenAtNaive: formatDateFromPostgresString(photo.takenAtNaive),
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src: {
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small: generateFeedMedia(photo, FEED_PHOTO_WIDTH_SMALL),
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medium: generateFeedMedia(photo, FEED_PHOTO_WIDTH_MEDIUM),
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large: generateFeedMedia(photo, FEED_PHOTO_WIDTH_LARGE),
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},
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});
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59
src/feed/rss.ts
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59
src/feed/rss.ts
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@ -0,0 +1,59 @@
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import { Photo } from '@/photo';
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import {
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FEED_PHOTO_WIDTH_LARGE,
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FEED_PHOTO_WIDTH_MEDIUM,
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FeedMedia,
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generateFeedMedia,
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getCoreFeedFields,
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} from '.';
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import { absolutePathForPhoto } from '@/app/paths';
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import { formatDate } from '@/utility/date';
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import { formatStringForXml } from '@/utility/string';
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interface FeedPhotoRss {
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id: string
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title: string
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description?: string
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link: string
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pubDate: Date
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media: Record<'content' | 'thumb', FeedMedia>
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}
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const formatPhotoForFeedRss = (photo: Photo): FeedPhotoRss => ({
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...getCoreFeedFields(photo),
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link: absolutePathForPhoto({ photo }),
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pubDate: photo.createdAt,
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media: {
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content: generateFeedMedia(photo, FEED_PHOTO_WIDTH_LARGE),
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thumb: generateFeedMedia(photo, FEED_PHOTO_WIDTH_MEDIUM),
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},
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});
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const feedPhotoToXml = (photo: FeedPhotoRss): string => {
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const formattedDate = formatDate({ date: photo.pubDate, length: 'rss' });
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return `<item>
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<title>${photo.title}</title>
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<link>${photo.link}</link>
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<pubDate>${formattedDate}</pubDate>
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<guid isPermaLink="true">${photo.link}</guid>
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${photo.description
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? `<description><![CDATA[${photo.description}]]></description>`
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: ''}
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<media:content
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url="${formatStringForXml(photo.media.content.url)}"
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type="image/jpeg"
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medium="image"
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width="${photo.media.content.width}"
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height="${photo.media.content.height}"
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>
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<media:thumbnail
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url="${formatStringForXml(photo.media.thumb.url)}"
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width="${photo.media.thumb.width}"
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height="${photo.media.thumb.height}"
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/>
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</media:content>
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</item>`;
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};
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export const createRssItems = (photos: Photo[]) =>
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photos.map(formatPhotoForFeedRss).map(feedPhotoToXml);
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