import { AocPrivateLeaderboard, LeaderboardConfig } from "src/contracts";

import https from "https";

import url from 'url';

export default class AdventOfCodeService {

year: number;

constructor(year: number) {

this.year = year;

}

async getLeaderboardAsync(config: LeaderboardConfig): Promise<AocPrivateLeaderboard> {

if (!config.id) {

return {

event: `${this.year}`,

members: {},

owner_id: '',

};

}

var result = await this.getFromUrlAndHeadersAsync<AocPrivateLeaderboard>(`https://adventofcode.com/${this.year}/leaderboard/private/view/${config.id}.json`, { "Cookie": `session=${config.session_id}` });

result.name = config.name;

return result;

}

getFromUrlAndHeadersAsync<T>(uri: string, headers: {

[key: string]: string;

}): Promise<T> {

return new Promise<T>((resolve, reject) => {

const { host, path } = url.parse(uri);

https.get({ host, headers, path }, function (res) {

var body = "";

res.setEncoding('utf8');

res.on("data", data => {

body += data.toString();

});

res.on("end", () => {

try {

resolve(JSON.parse(body));

}

catch (error) {

reject(error);

}

});

}).end();

});

}

}