const got = require("got");

/**
 * The defaults here are the same as the API
 * @see https://developer.github.com/v3/repos/#list-user-repositories
 * @param {string} username
 * @param {Object} opts
 * @param {('all' | 'owner' | 'member')[]} [opts.types]
 * @param {'created' | 'updated' | 'pushed' | 'full_name' | 'star'} [opts.sort]
 * @param {'desc' | 'asc'} [opts.order]
 */
async function getRepos(username, opts = {}) {
	let tempRepos;
	let page = 1;
	let repos = [];

	const {sort} = opts;
	const order = opts.order || (sort === "full_name" ? "asc" : "desc");
	const types = opts.types || [];
	let type = "all";

	if (
		types.includes("all") ||
		(types.includes("owner") && types.includes("member"))
	) {
		type = "all";
	} else if (types.includes("member")) {
		type = "member";
	}

	do {
		let requestUrl = `https://api.github.com/users/${username}/repos?per_page=100&page=${page++}&type=${type}`;
		if (sort && sort !== "star") {
			requestUrl += `&sort=${sort}&direction=${order}`;
		}

		tempRepos = await got(requestUrl);
		tempRepos = JSON.parse(tempRepos.body);
		repos = repos.concat(tempRepos);
	} while (tempRepos.length === 100);

	if (sort === "star") {
		repos = repos.sort((a, b) => {
			if (order === "desc") {
				return b.stargazers_count - a.stargazers_count;
			}

			return a.stargazers_count - b.stargazers_count;
		});
	}

	return repos;
}

/**
 * @see https://developer.github.com/v3/users/#get-a-single-user
 * @param {string} username
 */
async function getUser(username) {
	const res = await got(`https://api.github.com/users/${username}`);
	return JSON.parse(res.body);
}

module.exports = {
	getRepos,
	getUser
};