import type { User } from "./follow";
import { user } from "./user";

export interface Thread {
	id: number;
	title: string;
	createdAt: number;
	mediaCategories: {
		coverImage: {
			extraLarge: string;
			medium: string;
		};
	}[];
	categories: {
		name: string;
	}[];
}

export interface ThreadPage {
	data: {
		Page: {
			threads: Thread[];
			pageInfo: {
				hasNextPage: boolean;
				currentPage: number;
			};
		};
	};
}

const threadPage = async (page: number, userId: number): Promise<ThreadPage> =>
	await (
		await fetch("https://graphql.anilist.co", {
			method: "POST",
			headers: {
				"Content-Type": "application/json",
				Accept: "application/json",
			},
			body: JSON.stringify({
				query: `{ Page(perPage: 50, page: ${page}) {
  threads(userId: ${userId}) { id title createdAt mediaCategories { coverImage { extraLarge medium } } categories { name } }
  pageInfo { hasNextPage }
} }`,
			}),
		})
	).json();

export const threads = async (username: string): Promise<Thread[]> => {
	const allThreads = [];
	const userData = await user(username);

	if (!userData) throw new Error(`User not found: ${username}`);

	const userId = userData.id;
	let page = 1;
	let currentPage = await threadPage(page, userId);

	for (const thread of currentPage.data.Page.threads) allThreads.push(thread);

	while (currentPage.data.Page.pageInfo.hasNextPage) {
		page += 1;
		currentPage = await threadPage(page, userId);

		for (const thread of currentPage.data.Page.threads) allThreads.push(thread);
	}

	return allThreads;
};

export const threadLikes = async (id: number): Promise<Partial<User>[]> => {
	const activityResponse = await (
		await fetch("https://graphql.anilist.co", {
			method: "POST",
			headers: {
				"Content-Type": "application/json",
				Accept: "application/json",
			},
			body: JSON.stringify({
				query: `{ Thread(id: ${id}) { likes { name avatar { large } } } }`,
			}),
		})
	).json();

	return activityResponse["data"]["Thread"]["likes"];
};