Proxigram/src/pages/api/[username]/posts.ts
2023-11-05 10:15:23 -04:00

112 linhas
3,5 KiB
TypeScript

import redis from "@/utils/redis";
import { env } from "env.mjs";
import { ApiError } from "next/dist/server/api-utils";
import { IGetPosts } from "@/services/types/functions";
import { PostsResponse } from "@/services/types";
import { HttpStatusCode } from "axios";
import { convertFromBase64 } from "@/utils/text";
import { withExeptionFilter } from "@/utils/withExceptionFilter";
import { usernameQueryScheme } from ".";
import { getRandomFilteredProvider, getRandomProvider } from "@/services";
import { convertTTlToTimestamp } from "@/utils/converters/time";
import { NextApiRequest, NextApiResponse } from "next";
async function getPosts(req: NextApiRequest, res: NextApiResponse<PostsResponse>) {
const query = usernameQueryScheme.safeParse(req.query);
const cursorBase64 = req.query.cursor as string | undefined;
const expireTime = convertTTlToTimestamp(env.EXPIRE_TIME_FOR_POSTS);
if (!query.success) {
throw new ApiError(HttpStatusCode.BadRequest, query.error.errors[0].message);
}
if (query.data.username === "favicon.ico") {
return res.end();
}
if (cursorBase64) {
const cursor = convertFromBase64(cursorBase64);
const [postId, userId] = cursor.split("_");
if (!isNaN(Number(userId))) {
const cachedData = await redis.get(
`profile:${query.data.username}:cursor:${cursorBase64}`,
);
if (cachedData) {
return res.json(JSON.parse(cachedData));
}
const providerPosts = await getRandomFilteredProvider<IGetPosts>((provider) =>
["Wizstat", "Imgsed"].includes(provider.provider),
);
const posts = await providerPosts.getPosts({
username: query.data.username,
cursor,
});
await redis.setex(
`profile:${query.data.username}:posts:cursor:${cursorBase64}`,
expireTime,
JSON.stringify(posts),
);
return res.json(posts);
} else if (!isNaN(Number(postId)) && typeof userId === "undefined") {
const cachedData = await redis.get(
`profile:${query.data.username}:cursor:${cursorBase64}`,
);
if (cachedData) {
return res.json(JSON.parse(cachedData));
}
const providerPosts = await getRandomFilteredProvider<IGetPosts>(
(provider) => provider.provider === "Greatfon",
);
const posts = await providerPosts.getPosts({
username: query.data.username,
cursor,
});
await redis.setex(
`profile:${query.data.username}:posts:cursor:${cursorBase64}`,
expireTime,
JSON.stringify(posts),
);
return res.json(posts);
} else {
const cachedData = await redis.get(
`profile:${query.data.username}:cursor:${cursorBase64}`,
);
if (cachedData) {
return res.json(JSON.parse(cachedData));
}
const providerPosts = await getRandomFilteredProvider<IGetPosts>((provider) =>
["Iganony"].includes(provider.provider),
);
const posts = await providerPosts.getPosts({
username: query.data.username,
cursor,
});
await redis.setex(
`profile:${query.data.username}:posts:cursor:${cursorBase64}`,
expireTime,
JSON.stringify(posts),
);
return res.json(posts);
}
}
const cachedData = await redis.get(`profile:${query.data.username}:posts`);
if (cachedData) {
return res.json(JSON.parse(cachedData));
}
const randomPostsProvider = await getRandomProvider<IGetPosts>("Posts");
const posts = await randomPostsProvider.getPosts({
username: query.data.username,
});
await redis.setex(`profile:${query.data.username}:posts`, expireTime, JSON.stringify(posts));
res.json(posts);
}
export default async function apiHandler(req: NextApiRequest, res: NextApiResponse) {
await withExeptionFilter(req, res)(getPosts);
}