Files
osrs-json-hiscores/src/utils/helpers.ts
2023-08-17 00:12:27 -04:00

130 lines
3.5 KiB
TypeScript

import axios, { AxiosRequestConfig } from 'axios';
import * as ua from 'useragent-generator';
import { Gamemode, SkillName, ActivityName } from '../types';
import {
GAMEMODE_URL,
STATS_URL,
SCORES_URL,
SKILLS,
ACTIVITIES,
JSON_STATS_URL,
InvalidRSNError
} from './constants';
/**
* Will generate a stats URL for the official OSRS API.
*
* @param gamemode Gamemode to fetch ranks for.
* @param rsn Username of the player.
* @param json If the JSON endpoint is desired instead of CSV.
* @returns Encoded stats URL.
*/
export const getStatsURL = (gamemode: Gamemode, rsn: string, json = false) =>
`${GAMEMODE_URL[gamemode]}${
json ? JSON_STATS_URL : STATS_URL
}${encodeURIComponent(rsn)}`;
/**
* Will generate a player table URL for the official OSRS hiscores website.
*
* @param gamemode Gamemode to fetch ranks for.
* @param rsn Username of the player.
* @returns Encoded player table URL.
*/
export const getPlayerTableURL = (gamemode: Gamemode, rsn: string) =>
`${GAMEMODE_URL[gamemode]}${SCORES_URL}table=0&user=${encodeURIComponent(
rsn
)}`;
/**
* Will generate a skill table URL for the official OSRS hiscores website.
*
* @param gamemode Gamemode to fetch ranks for.
* @param skill Skill to fetch ranks for.
* @param page Page number.
* @returns
*/
export const getSkillPageURL = (
gamemode: Gamemode,
skill: SkillName,
page: number
) =>
`${GAMEMODE_URL[gamemode]}${SCORES_URL}table=${SKILLS.indexOf(
skill
)}&page=${page}`;
/**
* Will generate an activity table URL for the official OSRS hiscores website.
*
* @param gamemode Gamemode to fetch ranks for.
* @param activity Activity or boss to fetch ranks for.
* @param page Page number.
* @returns
*/
export const getActivityPageURL = (
gamemode: Gamemode,
activity: ActivityName,
page: number
) =>
`${
GAMEMODE_URL[gamemode]
}${SCORES_URL}category_type=1&table=${ACTIVITIES.indexOf(
activity
)}&page=${page}`;
/**
* Extracts a number from an OSRS hiscores table cell element.
*
* @param el OSRS hiscores table cell element.
* @returns Number parsed from cell text.
*/
export const numberFromElement = (el: Element | null) => {
const { innerHTML } = el ?? {};
const number = innerHTML?.replace(/[\n|,]/g, '') ?? '-1';
return parseInt(number, 10);
};
/**
* Extracts a RSN from an OSRS hiscores table cell element.
*
* @param el OSRS hiscores table cell element.
* @returns RSN parsed from cell text.
*/
export const rsnFromElement = (el: Element | null) => {
const { innerHTML } = el ?? {};
return innerHTML?.replace(/\uFFFD/g, ' ') ?? '';
};
/**
* Will run an Axios `GET` request against a given URL after injecting a `User-Agent` header.
*
* @param url URL to run a `GET` request against.
* @returns Axios response.
*/
export const httpGet = <Response>(
url: string,
config: AxiosRequestConfig = {}
) =>
axios.get<Response>(url, {
headers: {
// without User-Agent header requests may be rejected by DDoS protection mechanism
'User-Agent': ua.firefox(80)
},
...config
});
/**
* Validates that a provided RSN has the same username restrictions as Jagex.
* @param rsn Username to validate.
* @throws Error if the RSN fails validation.
*/
export const validateRSN = (rsn: string) => {
if (typeof rsn !== 'string') {
throw new InvalidRSNError('RSN must be a string');
} else if (!/^[a-zA-Z0-9 _-]+$/.test(rsn)) {
throw new InvalidRSNError('RSN contains invalid character');
} else if (rsn.length > 12 || rsn.length < 1) {
throw new InvalidRSNError('RSN must be between 1 and 12 characters');
}
};