fe-middleware/src/services/ImageService.ts

34 lines
1.1 KiB
TypeScript

import GelbooruServiceResponse from "src/types/GelbooruServiceResponse";
import Image from "src/types/Image";
import BotApiService from "src/services/BotApiService";
import GelbooruApiService from "src/services/GelbooruApiService";
class ImageService {
postsQueue: Image[] = [];
async get(): Promise<Image> {
while (this.postsQueue.length === 0) {
const validPosts = await this.getNewValidImages();
this.postsQueue = validPosts;
}
return this.postsQueue.pop() as Image;
}
private async getNewValidImages(): Promise<Image[]> {
const gelbooruResponse: GelbooruServiceResponse = await GelbooruApiService.get();
const posts = gelbooruResponse.posts;
const botResponse = await BotApiService.getAll();
const imagesUrls = botResponse.images.map(image => image.url);
const validPosts = Promise.all(posts
.filter(post => !imagesUrls.some(url => url === post.url))
.map((post): Image => {
return { url: post.url, tags: post.tags };
}));
return validPosts;
}
}
export default new ImageService();